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SIPROTEC 4 - 7SD610Universal Differential Protection Relayfor Two Line Ends

Protection Systems

CatalogSIP 5.4 ⋅ 2001

Differential Protection RelayPages

Description 2 to 5

Communication modules

Communication possibilities 6 and 7

DIGSI 4/SIGRA 4 operating programCommunication 8 to 11

Functions 12 to 15

Control and automation functions,

typical connections 16 and 17

Technical data 18 to 25

Selection and ordering data 26

Connection diagrams 28

Siemens SIP 5.4 ⋅2001 1

Siemens AG 2001

SIPROTEC 4 - 7SD610UniversalDifferential Protection Relayfor Two Line EndsFirmware version 4.0

Catalog SIP 5.4 ⋅ 2001

Accessories 27

~ Advantages to youn Cost-effectiveness

nHigh degree of automation

nUser-friendly operation

n Low planning and engineeringeffort

n Fast, flexible mounting, reducedwiring

n Simple, short commissioning

n Simple spare part stocking

nHigh flexibility

nHigh reliability and availability

n State-of-the-art technology

n Compliance with internationalstandards

n Integration in the overall systemSIPROTEC 4-SICAM-SIMATIC

Dimension drawings 29

Siemens companies and

representatives 30

Catalog index 31

Conditions of sale and delivery 32

Application

The 7SD610 relay is a differen-tial protection device suitablefor all types of applications andincorporating all those func-tions required for differentialprotection of lines, cables andtransformers.Transformers and compensa-tion coils within the differentialprotection zone are protectedby means of integrated func-tions, which were previously tobe found only in transformerdifferential protection. It is alsowell suited for complex applica-tions such as series and parallelcompensation of lines and ca-bles.It is designed to provide protec-tion for all voltage levels andtypes of networks; two lineends may lie within the protec-tion zone. The 7SD523 is usedwhen more than two line endslie within the protection zone.The relay features very high-speed and phase-selectiveshort-circuit measurement. Theunit is thus suitable for singleand three-phase fault clear-ance. The necessary restraintcurrent for secure operation iscalculated from the currenttransformer data by the differ-ential protection unit itself.Data communication for differ-ential current measurement iseffected via fiber-optic cablesor digital communication andtelephone networks, so thatthe line ends can be quite farapart. Its special product char-acteristics make it particularlysuitable for use in conjunctionwith digital communication net-works. The units measure thedelay time in the communica-tion network and adaptivelymatch their measurements ac-cordingly. The units can be op-erated through leased linesemploying twisted telephonepairs up to a max. distance of8 km by means of special con-verters and also through leaseddigital telephone lines(64/128 kbit) or switched sys-tems (50 Hz networks).The serial communication inter-faces for data transmission be-tween the ends are replaceableby virtue of plug-in modulesand can be easily be adaptedto multimode and monomodefiber-optic cables and to leasedlines or switched lines withinthe communication networks.

Extremely fast, selective andsensitive protection of two-endlines can now be provided bymeans of these units.

Maximum service life andreliability

The 7SD610 hardware is basedon 20 years of experiencegained by Siemens in design ofnumerical protection units. Ad-vanced technology and a pow-erful 32-bit microprocessor areemployed. Manufacture is sub-ject to stringent quality stand-ards.Particular attention was paid toelectromagnetic compatibilityand the number of electroniccomponents has been drasti-cally reduced through the useof large-scale integrated cir-cuits.The software design incorpo-rates our accumulated experi-ence and makes use of the lat-est technological develop-ments. High reliability is as-sured by use of object-orientedhigh-level programming andconsistent quality control.

A member of theSIPROTEC 4 family

The 7SD610, which is a mem-ber of the SIPROTEC 4 unitfamily, is notable for the uni-form design and the high de-gree of functionality, which rep-resents a fully new quality levelin protection technology.The local operation interfacewas designed on the basis ofergonomic requirements. Par-ticular value was attached toreadability of the multi-linebacklit display. The most impor-tant protection parameter set-tings can be entered intuitivelyby means of the integratedmembrane keyboard.By means of the DIGSI 4PC operating program, all thesettings can be entered right atthe unit and user support isprovided for operational andfault analysis.

Integrated measuring and

control functions

In addition to the protectionfunctions, the 7SD610 also in-corporates measuring, controland monitoring functions andthus contributes to economicalplant and network operationscontrol.

Backup protection

The unit can also be employedas backup for the distance, inwhich case the tele-protectioncomparison of the distancerelay can be effected via thecommunication link of the dif-ferential protection. It is thuspossible to reduce the operat-ing costs of communication fora protection section.

Additional functions

In addition to differential pro-tection, the 7SD610 also incor-porates a number of additionalfunctions:− Three-stage overcurrent pro-

tection (can also be config-ured as backup or emer-gency protection)

− Instantaneous high-currenttripping, optionally with inter-rogation of the switchgearstatus of all the line ends.

− Phase-selective breakerintertripping by means of thedifferential protection or of anexternal protection unit.

− Single or three-pole auto-reclosure using either con-ventional procedures or newadaptive technology.

− Overload protection− Genuine real-time mode for

both units with synchroniza-tion via the communicationlink.

− 4 remote trippingcommmands initiated viabinary inputs

Programmable logic

The integrated logic functionsallow the user to implementcustomized automation func-tions via the graphic user inter-face. It is thus also possible togenerate user-defined mes-sages.The logic is suitable for protec-tion applications with stringentreal-time requirements, but it isalso suitable for tasks with notso stringent real-time require-ments, e.g. control and mea-suring functions.

Differential protection com-munication / local andremote communication

The 7SD610 has been providedwith a number of different se-rial communication interfacesfor various tasks:− Front serial interface for con-

nection of a PC with theDIGSI 4 operating program ora standard browser.

SIPROTEC 4 - 7SD610Differential Protection Relay for Two Line EndsDescription

2 Siemens SIP 5.4 ⋅2001

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− IEC system interface for con-nection to a substation con-trol and protection systemusing the IEC 60870-5-103protocol.This interface is prepared forother protocols such asEthernet, PROFIBUSFMS/DP and DNP 3.0.

− Serial service / modem inter-face for connection of a PC ormodem respectively. Directconnection or centralized op-eration via the RS485 bus orstar coupler. Local / central-ized or remote operation bymeans of DIGSI 4 or a stand-ard browser.

− Time synchronization inter-face for IRIG-B or DCF 77 sig-nals. The signal level is ad-justable.

− The 7SD610 relay is also pro-vided with a fiber-optic inter-face for communication withthe neighboring differentialprotection relay.

Operational measuredvalues

In order to facilitate systemmanagement and commission-ing, all the relevant measuredvalues are shown as primaryand secondary values with theircorresponding dimension andassociated with the objects tobe protected. In addition thecurrent and voltage measuredvalues of the unit at the remoteend of the line are also dis-played.The measured values can beread on the display or bymeans of DIGSI 4. A distinctivefeature of the 7SD610 isgraphic display of the local andremote measured values in abrowser window.

Indications

The 7SD610 makes availabledetailed data for network faultanalysis and for supervisionduring operation. Theindications are stored in non-volatile memory and are thusimmune to failure of the auxil-iary voltage.Since the units at the ends ofthe line are time-synchronized,the time stamps for the opera-tional event and fault eventmessages are identical.

Fault indications

Data for the last 8 faults arestored in the unit. The latestfault overwrites the oldestfault. The fault indications havea time resolution of 1 ms. Theythus provide a detailed log ofthe fault event sequence.

Operational indications

All indications not directly re-lated to a fault (e.g. operatorcontrol action, monitor signals,unit start-up), are stored in thestatus indication buffer. Thetime resolution is 1 ms.

Spontaneous indications

Indications can be displayedspontaneously as they are gen-erated in the process in anindications window by meansof DIGSI 4.

Fault recording

An instantaneous value re-corder with a time resolution of1 ms is provided. A maximumof 8 fault records can be storedin the non-volatile fault recordbuffer, which is immune to fail-ure of the auxiliary voltage. Thetotal time period of a fault re-cord is 5 s.If, in addition to the CTs, VTsare also connected to the7SD610, the fault records con-tain the current and the voltageduring the fault. The calculateddifferential and restraint cur-rents are shown in the fault re-cords, so that the relevant trip-ping parameters are immedi-ately visible.

The fault records of both endsof the line are time-synchro-nized. The fault records of theline ends can be displayed in anintegrated time-synchronizeddepiction by means of theSIGRA 4 graphic analysis pro-gram. Evaluation of fault re-cords is thus considerably en-hanced to a degree previouslyassociated only with fault re-corders.

Commissioning program

Currents and optionally thevoltages are displayed graphi-cally with absolute value andphase by means of a specialprogram, which runs inconjunction with a standardbrowser on the PC. In addition,local and key measured valuesof the communication links aredisplayed.

The differential and restraintcurrents are also displayed asmeasured values in the trippingcharacteristic.

Control

Control of circuit-breakers anddisconnectors (electrically / mo-tor-actuated disconnectors)is possible by means of the in-tegrated control functions viathe integrated operator panel,the binary inputs and usingDIGSI 4.The 7SD610 incorporates thecomplete scope of controlfunctions of the SIPROTEC 4unit family.

Time synchronization

A battery-buffered clock is pro-vided as standard. The clockcan be synchronized by meansof a serial signal at the time-synchronization interface(DCF77, IRIG-B via a satellitereceiver), via a binary input(1 minute pulses) or via thesubstation control interface.Every message is providedwith a real-time date and timetag with a resolution of 1 ms.A special feature of the7SD610 allows time synchroni-zation via the communicationlinks. It is thus sufficient if oneunit is externally synchronizedwith respect to time.Timekeeping of the other unitis corrected and synchronizedwith his master unit.

Assignable binary inputs and

contact outputs

Binary inputs, binary outputsand LEDs are assignable withindications, user-specific andindependent of one another.

Selectable function keys

Four function keys can be as-signed to permit the user toperform frequently recurringactions very quickly and simply.Typical applications are:jumps to a given position in themenu tree in order to displaythe event log or to perform au-tomatic functions, such as”Switching of circuit-breaker”,hot line tagging, reclose block-ing, etc.

Continuous self-monitoring

The hardware and softwarecomponents are continuouslymonitored. If abnormal condi-tions are detected, the unit sig-nals them immediately. In thisway, a high level of safety, reli-ability and availability isachieved.In addition, the 7SD610 is pro-vided with high-speed currentmonitoring stages, which onphase failure or implausible cur-rent measurement in the ana-log stage immediately blockthe protection unit and thus ef-fectively prevent possible con-sequential overreaction by thedifferential protection unit.

Reliable battery monitoring

The internal battery is used tobackup the clock, event logsand fault recording in the eventof a power supply failure. Itsfunction is checked by the pro-cessor at regular intervals. Ifthe capacity of the battery isfound to be declining, an indica-tion appears on the display.Routine replacement is there-fore not necessary. All protec-tion and other setting parame-ters are stored in the Flash-EPROM, and therefore not lostif the power supply or batteryfails.

User-friendly local operation

Many advantages can alreadybe found on the clear anduser-friendly front panel:Positioning and grouping of thekeys support the natural oper-ating process.A non-reflective backlit display.Programmable (freely assign-able) LEDs for important indica-tions.Arrow keys ensure an easynavigation in the function tree.Operator-friendly input of theset values via the numeric keysor DIGSI 4.Four programmable keys forfrequently used functions atthe push of a button.


SIPROTEC 4 - 7SD610Differential Protection Relay for Two Line EndsDescription

t

s


Local operation

All operator actions can be per-formed and information dis-played via an integrated user in-terface (HMI).

t

On the LCD display, substationand relay information can bedisplayed as text in variouslists. Frequently displayed infor-mation includes measured andcalculated analog values, infor-mation about the state of theswitchgear and the relay, pro-tection information, general in-dications and alarms.

7 assignable LEDs are used todisplay substation or relay infor-mation. The LEDs can be la-belled according to the applica-tion requirements. An LED re-set key resets the LEDs.

t

RS232 PC front interface

4 configurable function keyspermit the execution of fre-quently used actions simplyand fast. Typical applications in-clude jumps to certain points inthe menu tree to display theoperational measured values,or execution of automatic func-tions such as: ”CLOSE CB”.

Numerical keys for easy data entry

t

Keys for navigation

Fig. 1Front view of the 7SD610 relay (1/3 x 19” version)

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Connecting techniques andhousing with many advan-tages

The 7SD610 is available inhousing width of 1/3, referredto a 19” module frame system.The height is 243 mm.All cables can be connectedwith or without cable ring lugs.Plug-in terminals are availableas an option, it is thus possibleto employ prefabricated cableharnesses. In the case of sur-face mounting on a panel, theconnection terminals are lo-cated above and below in theform of screw-type terminals.The communication interfacesare located on the same sidesof the housing. For dimensionsplease refer to “Dimensiondrawings”.

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Fig. 2Housing width 1/3 x 19”

Fig. 3Rear view with screw-type terminalsand serial interfaces (ports)

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The 7SD610 relay employsflexible communication mod-ules.For the system interface a820 nm fiber-optic module forconnection to multimode fiberwith two ST connectors isavailable.

Also available are electricalRS485 or RS232 interfacesfor system and modem/serviceinterfaces.The protection interfaces havethe following options:

− 820 nm fiber-optic interfacewith clock recovery:2 ST connectors for directconnection with 2 62.5/125 µm multimode fibers upto 1.5 km or the connectionto a communication con-verter up to 1.5 km max.

− 820 nm fiber-optic interface:2 ST connectors for directconnection up to 3.5 km with2 62.5/125 µm multimodefibers.

− 1300 nm fiber-optic interface:2 ST connectors for directconnection up to 10 km with2 9/125 µm monomodefibers .

− 1300 nm fiber-optic interface2 FC connectors for directconnections up to 35 kmwith 2 9/125 µm monomodefibers .

− Connection to a communica-tion network, the leased lineor leased digital telephoneline is effected by means ofspecial communication con-verters. These are fitted witha 820 nm fiber-optic interfaceand two ST connectors onthe protection unit side. Ei-ther an electrical X21 inter-face or a G703.1 interfacecan be selected on the com-munications network side. Inaddition, two communicationconverters are under devel-opment, which will allowconnection to leased lines orleased digital telephone linesvia the S0 bus (available as of05/2001).

− Note: A 820 nm interfacewith clock-pulse recoverymust be installed in the pro-tection unit to interface to thecommunication converter.

SIPROTEC 4 - 7SD610Differential Protection Relay for Two Line Ends


Communication modules

Fig. 4Fiber-optic communication module

Fig. 5RS232/RS485 electrical communication module

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max. 1.5 km with 62.5/125 µmmultimode fiber

7SD610 7SD610

ST connectors onboth sides


7SD610 7SD610


Fig. 6Direct optical link up to 1.5 km

Fig. 7Direct optical link up to 3.5 km

max. 10 km with 9/125 µmmonomode fiber

7SD610 7SD610


Fig. 8Direct optical link up to 10 km

max. 35 km with 9/125 µmmonomode fiber

7SD610 7SD610

FC connectors onboth sides

Fig. 9Direct optical link up to 35 km


7SD610


Interface to communicationunit/multiplexer

X21 (64/128/512 kBit)G703 (64 kBit)S0- ISDN, telephone cable1)

Twisted telephone pair(leased line up to 8 km max.)Interface and baud rate selectableby jumpers/terminal program

Fig. 10Connection to a communication unit/digital telephone network/leased line

Communication possibilities between relays

Communi-cationconverter

1) Available as of 05/2001.

DIGSI 4 the operating pro-gram for SIPROTEC 4 units

The PC DIGSI 4 operating pro-gram is the user interface forthe 7SD610 units. It is a mod-ern PC operating program thatis usable with Windows ver-sions 95/98/ NT4.0. DIGSI 4 isthe tool used for configuration,programming and the comfort-able user interface for the7SD610 and other SIPROTEC 4relays.With the additional programSIGRA 4 comprehensive faultanalysis is possible. The DIGSIremote program offers a re-mote access via modem to therelay with it´s rear service/mo-dem interface.

Simple setting of theprotection

The required protection func-tions can be easily selectedfrom the complete range offunctions provided. As a result,the functional clarity in the fur-ther menus is enhanced.The newly introduced displayof primary values (setting val-ues are referred to rated valuesof the object to be protected)allows standardization of thesetting values. Conversion intosecondary values and loadinginto the protection unit arepushbutton operations.

Routing (marshalling) matrix

Routing is transparent thus en-suring that you can alwaysclearly assess the situation.The matrix clearly displays, forexample, which LEDs, binaryinputs and relays are connec-ted to which internal signals.By means of a click, connec-tions can be made even up tothe substation control system.It is possible, for example, bymaking use of the filter func-tions, to display only mar-shalled information. Moreover,the viewpoint can be altered. Inthe binary output view (relays),the tripping matrix is displayedin a clear manner.

SIGRA 4: Universal program

for evaluation of faultrecords

Fault records stored in the pro-tection unit can be visualized ina straighforward manner andevaluated. Harmonic and indi-vidual measuring points can beeasily calculated, phasor andcircle diagrams can be dis-played, in addition to numerousother functions.


Fig. 12SIGRA 4 Fault analysis


DIGSI 4 Operating program

Fig.11DIGSI 4 Main menu

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By virtue of the Comtrade for-mat, all fault record types canbe analyzed and, for example,exported to test equipment.Since the fault records of bothends of the line are synchro-nized precisely, these can beaccurately correlated in theSIGRA 4 program.

Commissioning

Special attention has been paidto commissioning. All binary in-puts and outputs can be dis-played and activated directly.This can simplify the wiringcheck significantly for the user.Furthermore all currents andvoltages and their phasors areavailable via communicationlink at the local relay and dis-played in the relay, with DIGSI 4or a special commissioning pro-gram running under a standardbrowser (Internet Explorer orNetscape Navigator).

CFC: Programming logic

With the help of the CFC gra-phic tool (Continuous FunctionChart) interlocks and switchingsequences can be configuredsimply via drag and drop oflogic symbols; no specialknowledge of software is re-quired. Logical elements, suchas AND, OR, timer elements aswell as limit value inquiries ofmeasured values. In addition,measured value set point inter-rogation is available.

Various types of logic diagramsfor protection, control and mea-suring functions can be gener-ated, which are processed atdifferent speeds within theunit.

Browser-based commis-sioning aid

The 7SD610 provides a com-missioning and test programwhich runs under a standardinternet browser (no specialsoftware is required at the PC).Protection topology and com-prehensive measurementsfrom the local and remote ter-minal are shown. The breakerposition of each line end isshown as well as the trippingcharacteristic of the relay.


Fig. 13

Fig. 14Browser-aided commissioning

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The new DIGSI 4

Easy to learn

Clear layout of routing matrix

Substation, feeder and equipment

data management

Password protection

Linked with the SICAM/SIMATIC

software environment

Windows standards

With respect to communica-tion, particular emphasis hasbeen placed on high flexibility,data security and use of cus-tomary standards in the field ofenergy automation. The con-cept of the communicationmodules allowsinterchangeability, on the onehand, and, on the other hand, isopen for future standards (e.g.Ethernet).

Local PC interface

The PC interface provided onthe front panel on the unit al-lows rapid access to the pa-rameters, status and faultevent data by means of theDIGSI 4 operating program.Use of this program is particu-larly advantageous during test-ing and commissioning.

In the case of the 7SD610, aPC with a standard browsercan be connected to thefront-panel interface (refer to„Commissioning program“).

Rear-side interfaces

The service and system com-munication interfaces are lo-cated at the rear side of theunit. In addition, the 7SD610 isprovided with a protection in-terface. The interface comple-ment is variable and retrofittingis possible without any diffi-culty. These interfaces ensurethat the requirements for differ-ent communication interfaces(electrical and optical) and pro-tocols (IEC 60870-5-103,PROFIBUS, DIGSI 4, TCP/IP,etc.) can be met.

The interfaces are designed forthe following applications:

Service / modem interface

By means of the RS 485 inter-face, it is possible to efficientlyoperate a number of protectionunits centrally via DIGSI 4. Re-mote operation is possible onconnection of a modem. Thisoffers the advantage of rapidfault clarification, especially inthe case of unmanned powerplants.With the optical version, cen-tralized operation can be imple-mented by means of a starcoupler.

In the case of the 7SD610, aPC with a standard browsercan be connected to the ser-vice interface (refer to „Com-missioning program“).


10 Siemens SIP 5.4 ⋅ 2001

Communication

Fig. 15IEC 60870-5-103 star-type RS232 copper conductor connection orfiber-optic connection

Fig. 16Centralized communication via star-coupler

System interface

The 7SD610 is provided with asystem interface according toIEC standard 60870-5-103. Thisis an internationally standard-ized protocol for efficient per-formance of communicationtasks in the field of protection.This protocol is supported by anumber of manufacturers andis employed all over the world.

The full signalling capabilities ofthe unit are made available tothe user by means of apublished Siemens-specific ex-tension to the protocol.The unit can be connected ei-ther optically or electrically to asubstation control and protec-tion system such asSINAULT LSA or SICAM bymeans of this interface.

Other protocols are under de-velopment.

DIGSI 4Local operation

Star couplere.g. 7XV5

DIGSI 4Remote opera-tion via modem

7SJ63 7SD610 7SJ63 7SJ63

SIPROTEC Bay control units

Modem

Master control unit

eo

7XV5650

RS485ÖOConverter

Typical applications employ-ing fiber-optic cables or com-munication networks

Three applications are shown inFig. 17. The 7SD610 differentialprotection relay is connected tothe current transformers and tothe voltage transformers at oneend of the cable, although onlythe currents are required forthe differential protection func-tion. The voltage connectionimproves, among other things,the frequency measurementand allows extension of themeasured values and the faultrecords. Direct connection tothe other units is effected viamonomode fiber-optic cablesand is thus immune to interfer-ence.

Two different modules areavailable, one of which coversdistances of up to 10 km andthe other up to 35 km. In thecase of direct connection viafiber-optic cables, data commu-nication is effected at 512 kbit/sand the command time of theprotection system is reducedto 15 ms. Parallel compensa-tion (for the load currents) isprovided within the protectionzone of the cable. By means ofthe integrated inrush restraint,the differential protection relaycan tolerate the surge onswitching-on of the cable andthe compensation reactors,and thus allows use of sensi-tive settings under load condi-tions.

The other example shows twodifferential units. The dataexchange is made via a com-munications network. 7SD610offers many features to reliablyand safely handle dataexchange via communicationnetworks. Depending on thebandwidth available in the com-munication system, 64 kBit,128 kBit or 512 kBit can be se-lected for the X21 interface,whereas the G703.1 interfaceworks with 64 kBit/s. The con-nection to the communicationconverter is effected via costeffective 820 nm interface withmultimode fiber. This commu-nication converter converts theoptical input to electrical sig-nals.

The third example shows therelays being connected via atwisted telephone pair. Dataexchange and transmission iseffected via a leased line of amax. length of 8 km.Here a transformer is in theprotected zone. In this applica-tion 7SD610 is set like a trans-former differential relay. Vectorgroup matching and inrush re-straint is provided by the relay.


Typical applications

Monomode fiber 9/125 µmModule 1: 10 kmModule 2: 35 km

10 km, 110 kV cable

Digital network communication

200 km overhead line, 400 kV

7SD610

820 nm,max. 1.5 km

Communicationconverter

7SD610

7SD610 7SD610

7SD610

7SD610

X21G703.1

3 km overhead line

Leased telephone line,max. 8 km1)


Fig. 17Typical applications



Transformer

Yd1

1) Available as of 05/2001

Differential protection(ANSI 87L, 87T)

The differential protection func-tion has the following features:• Measurements are per-

formed separately for eachphase; thus the trip sensiti-vity is independent of thefault type.

• An adaptive measurementmethod with high sensitivityfor differential fault currentsbelow rated current offersthe detection of highly resis-tive faults. This trip elementuses special filters, which of-fer high security even withhigh level DC-components inthe short-circuit current. Thetrip time of this stage isabout 35 ms, the pickupvalue is about 10 % of therated current.

• A high-set differential tripstage which clears differen-tial fault currents higher thanthe rated current within15 ms offers fast trippingtime and high-speed faultclearence time. A high-speed charging comparisonmethod is employed for thisfunction.

• When a long line or cable isswitched on at one end, tran-sient peaks of the chargecurrent load the line. To avoida higher setting of the sensi-tive differential trip stage,this setpoint may be in-creased for a settable time.Under normal operating con-ditions, the relay is switchedautomatically to the sensitivesetting.

• A new feature of the unit isparameterization of the cur-rent transformer data. Theunit automatically calculatesthe necessary restraint cur-rent by means of the previ-ously entered current trans-former error. The unit thusadaptively matches the work-ing point on the tripping char-acteristic so that it is no lon-ger necessary for the user toenter characteristic settings.

• Different current-transformerratios may be employed atthe ends of the line. A mis-match of 1:8 is permissible.The tripping values of theunit are referred to a nominaloperating current previouslyentered by the user.

• Differential protection trip-ping can be combined withovercurrent pickup. In thiscase pickup of the protectionrelay is initiated only on si-multaneous presence ofdifferential current and ofovercurrent.

• Easy to set tripping charac-teristic. Because the relaycalculates its restraint currentonly the setpoint IDiff> andIDiff>> must be set.

• Differential and restraint cur-rent are monitoredcontinously during normaloperation and are displayedas operational measuredvalues.

• High stability during externalfaults even with diffe-rent current transformerssaturation level. For an exter-nal fault only 5 ms saturationfree time are necessary toguarantee the reliability ofthe differential protection.

• Single-phase short-circuitswithin the protection zonecan be cleared using a timedelay, whereas multi-phasefaults are cleared instanta-neously. Because of thisfunction, the unit is optimallysuited for applications in in-ductively compensated net-works, where differential cur-rent can occur as a result ofcharge transfer phenomenaon occurrence of a single-phase earth fault within theprotection zone, thus result-ing in undesired tripping bythe differential protection re-lay. Undesired tripping of thedifferential protection can besuppressed by making use ofthe provision for introductionof a time delay on occur-rence of single-phase faults.

• With transformers or com-pensation coils in the protec-tion zone, the sensitive re-sponse threshold IDiff> can beblocked by an inrush detec-tion function. Like in trans-former differential protection,it works with the second har-monic of the measured cur-rent compared with the fun-damental component.Blocking is cancelled from anadjustable threshold of theshort-circuit current, so thatvery high current faults areswitched off instantaneously.

• In the case of transformerswithin the protection zone,vector group adaption andmatching of different currenttransformer ratios is carriedout within the unit. The inter-ference zero current, whichflows through the earthedwinding, is eliminated fromthe differential current. The7SD610 thus behaves like atransformer differential relaywhose ends, however, canlie quite far apart.

Characteristics of differentialprotection communciationthrough the active interfacesThe 7SD610 is at home incommunciation networksThe data required for measure-ment of differential currentsand numerous other variablesare exchanged between theprotection units in the form ofsynchronous serial telegramsemploying the full duplexmode. The telegrams are se-cured using CRC check sumsso that transmission errors in acommunication network aredetected immediately. More-over, each telegram carries atime stamp accurate to a mi-cro-second, thus allowing mea-surement and monitoring ofthe telegram transmission de-lay times.• Data communication is im-

mune to electromagnetic in-terference, since fiber-opticcables are employed in thecritical region.

• Monitoring of each individualincoming telegram and ofoverall communication be-tween the units, excludingsupplementary equipment.

The check sum (correctnessof the telegram contents),the address of the neighbor-ing unit and the transmissiondelay time of the telegramare monitored.

• Unambiguous identificationof each unit is ensured by as-signment of a settable com-munication address within adifferential protection topo-logy. Only those units mutu-ally known to each other cancooperate. Incorrect inter-connection of the communi-cation links results in block-ing of the protection system.

• Detection of telegrams,which are reflected back tothe transmitting unit withinthe communication network.

• Detection of path switchingin a communication network.Automatic restraint of theprotection function until mea-surement of the parametersof the new communicationlink has been completed.

• Continuous measurement ofthe transmission delay timeto the remote line end.Taking into account of thedelay time in differential cur-rent measurement and com-pensation thereof, includingmonitoring of a settable max-imum permissible delay timeof 30 ms.

• Generation of alarm signalson disturbed communicationlinks. Statistical values for thepercentage availability of thecommunication links per min-ute and per hour are availableas operational measured val-ues.



Functions

Fig. 18Tripping characteristic

I

IDiff

N,operation

Trippingarea

Restraintarea

Adaptive restraint

IDiff>

Basic restraintIDiff>

I

Irestraint

N,operation


Phase-selective intertrip andremote trip/indicationsNormally the differential cur-rent is calculated for each lineend nearly at the same time.This leads to fast and uniformtripping times. Under weakinfeed conditions, especiallywhen the differential functionis combined with an over-current pickup a phase selec-tive intertrip offers a tripping ofboth line ends.• 7SD610 has 4 intertrip sig-

nals which are transmitted inhigh-speed (20 ms) to theother terminals. Theseintertrip signals can also beinitiated and transmitted byan external relay via binary in-puts. In cases where thesesignals are not employed forbreaker intertripping, other al-ternative information can berapidly transmitted to the re-mote end of the line.

• In addition, four high-speedremote commands are avail-able, which can be intro-duced either via a binary in-put or by means of an inter-nal event and then rapidlycommunicated to the otherend.

• Provided that the circuit-breaker auxiliary contacts arewired to binary inputs at theline ends, the switching sta-tus of the circuit-breakers isindicated and evaluated atthe remote ends of the line.Otherwise the switching sta-tus is derived from the mea-sured current.

Possible modes of operationof the differential protectionsection• Special modes of operation

such as the „Commissioningmode“ and „Test operation“are advantageous for com-missioning and servicing theunits.

• In general, an alarmindication is generated on in-terruption of the communica-tion links and an attempt ismade to re-establish thecommunication link. Theunits operate in the emer-gency or pickup mode, pro-vided that these have beenparameterized.

• The complete configurationcan also be used in a testingmode. The local end is in anoperating mode, which, forexample, allows testing ofthe pickup values. The cur-rent values received from theremote end of the line areset to zero, so as to achievedefined test conditions. Theremote end unit ignores thedifferential currents, whichoccur as a result of testing,and blocks differential protec-tion and breaker intertripping.It may optionally operate inthe backup protection mode.

• Differential protection is acti-vated in the commissioningmode. However, test cur-rents injected at one end ofthe line and which generate adifferential current do notlead to output of a TRIP com-mand by the differential pro-tection or to breakerintertripping. All those indica-tions that would actually oc-cur in conjunction with a gen-uine short-circuit are gener-ated and displayed. TRIPcommands can be issued bythe backup protection.

Thermal overload protection(ANSI 49)

A built-in overload protectionwith a current and thermalalarm stage is provided for thethermal protection of cablesand transformers.The trip time characteristics areexponential functions accord-ing to IEC 60255-8. The preloadis considered in the trip timesfor overloads.An adjustable alarm stage caninitiate an alarm before trippingis initiated.

Overcurrent protection(ANSI 50, 50N, 51, 51N)

The 7SD610 provides a three-stage overcurrent protection.Two definite-time stages andone inverse-time stage (IDMT)are available, separately forphase currents and for theearth current. Two operatingmodes are selectable. Thefunction can run in parallel tothe differential protection oronly for backup during interrup-tion of the protection commu-nication. Two stages e.g. canrun in backup mode, whereasthe third stage is configured foremergency operation.The available ANSI/IEC in-verse-time curves are:

• Inverse

• Short inverse• Long inverse• Moderately inverse• Very inverse• Extremely inverse• Definite inverse

Instantaneous high speedswitch-onto-faultovercurrent protection

(ANSI 50HS)

Instantaneous tripping is possi-ble when energizing a faultyline. On large fault currents, thehigh speed switch-onto-faultovercurrent stage can initiatevery fast three-pole tripping.Circuit-breakter closure onto afaulty line is also possible pro-vided that the circuit-breakerauxiliary contacts of the remoteend are connected and moni-tored. If an overcurrent ariseson closing of the circuit-breakerat one end of a line (while theother end is energized) themeasured current can only bedue to a short-circuit. In thiscase, the energizing line end istripped instantaneously.

In the case of circuit-breakerclosure the auto-reclosure isblocked at both ends of the lineto prevent a furtherunsuccessful closure onto ashort-circuit.If circuit-breaker intertripping tothe remote end is activated,intertripping is also blocked.

Auto-reclosure(ANSI 79)

The 7SD610 relay is equippedwith an auto-reclosure function(option). For 1-phase or formultiphase faults differentdead times can be set. Thefunction includes several oper-ating modes:

• 3-pole auto-reclosure (AR) forall types of faults.

• 1-pole auto-reclosure for1-phase faults, no AR formulti-phase faults.

• 1-pole AR for 1-phase faultsand for 2-phase faults with-out earth, no AR for multi-phase faults.

• 1-pole AR for 1-phase and3-pole AR for multi-phasefaults.

• 1-pole AR for 1-phase faultsand 2-phase faults withoutearth and 3-pole AR for allother faults.

• Multiple-shot AR. Up to 8ARs are possible.

• Interaction with an externalprotection relay for AR viabinary inputs and binary out-puts.

• Adaptive autoclosure: Bothbreakers open after the faultin the protection zone hasbeen detected. Only one re-lay switches on the breaker.If the fault has disappearedthe other line end isswitched on via communica-tion links. If not, the line endmakes a final trip.

• Interrogation of synchro-check protection before auto-reclosure occurs. This issuesthe release signal for auto-reclosure to the unit via a bi-nary input.

• Monitoring of the circuit-breaker auxiliary contacts andCB- ready status.

• Voltage check for discrimina-tion between successful andnon-successful reclose at-tempts.

In addition to the above men-tioned operating modes, se-veral other operating modescan be performed and config-ured according to user-specificrequirements by means of theintegrated programmable logic(CFC).

Breaker failure protection(ANSI 50BF)

The 7SD610 relay incorporatesa two-stage breaker failure pro-tection to detect the failure oftripping command execution,for example due to a defectivecircuit-breaker. The current de-tection logic is phase-segregated and can thereforealso be used in single-pole trip-ping schemes. If the fault cur-rent is not interrupted after asettable time delay has ex-pired, a retrip command or abusbar trip command is gener-ated. The breaker failure pro-tection can be initiated by all in-tegrated protection functionsas well as by external devicesvia binary input signals.

High-speed current monitor-ing and other monitoringfunctions

Numerous monitoring func-tions for hardware and soft-ware are implemented in the7SD610 unit. The measuringcircuits, analog-to-digital con-version and the supply voltages,

memory and software execu-tion (watch-dog function) aremonitored.An open circuit between theCTs and relay inputs under loadmay lead to tripping of a differ-ential relay if the load currentexceeds the differentialsetpoint. The 7SD610 providesfast bus wire supervision whichimmediatelly blocks all lineends if an open circuit is mea-sured by a local relay. Thisavoids maloperation due toopen circuit. Only the phasewhere the open circuit is de-tected is blocked. The otherphases remain under differen-tial operation.Additional measurement super-vision functions are:• Symmetry of voltages and

currents• Summation of phase cur-

rents and comparison withthe measured current atmeasuring input for the I4 -earth current transformer. Ifa significant difference is de-tected, the differential pro-tection is blocked immedi-ately, because this differencecan only originate in a hard-ware fault of the unit’s ana-log part.

• Phase-sequence super-vision.



Functions

Fig. 19Inverse ( )

t =0,14

p

pI I

0 021

,−

⋅ T

Trip circuit supervision(ANSI 74TC)

One or two binary inputs foreach circuit-breaker pole can beused for monitoring the cir-cuit-breaker trip coils includingthe connecting cables. Analarm signal is issued when-ever the circuit is interrupted.For each trip circuit 1 or 2 bi-nary inputs can be used.

Lockout (ANSI 86)

All binary outputs can be storedlike LEDs and reset using theLED reset key. The lockoutstate is also stored in the eventof supply voltage failure.Reclosure can only be issuedafter the lockout state is reset.

Local measured values

The measured values are calcu-lated from the measured cur-rent and voltage signals alongwith the power factor (cos ϕ),the frequency, the active andreactive power. Measured val-ues are displayed as primary orsecondary values.The relay uses a high-resolutionAD converter and the analog in-puts are factory calibrated, so ahigh accuracy is reached (under0.5 % with rated current).The following values are avail-able for measured value pro-cessing:• Currents 3 x Iphase, 3 I0, IE

• Voltages 3 x Vphase-earth, 3 xVphase-phase, 3V0, Ven

• Symmetrical components I1,I2, V1, V22 (positive and nega-tive phase-sequence system)

• Active power P (Watt),Reactive power Q (Var),Apparent power S (VA)

• Power factor PF (= cos ϕ)• Frequency f• Differential and restraint cur-

rent per phaseLimit values are calculated bymeans of the CFC. User-spe-cific indications can be derivedfrom these limit value indica-tions like overload conditions,overvoltage.

Measured values at remoteline ends

Every two seconds the cur-rents and voltages are freezedat the same time and transmitt-ed via the communication link.Therefore, currents and volt-ages at the two line ends are al-ways available with theiramount and phases . This al-lows checking the whole con-figuration under load conditions(load current of 10 % is suffi-cient). In addition, the differen-tial and restraint currents arealso displayed. Important com-munication link measurements,such as delay time or as per-centage availability per min-ute/hour are also available asmeasurements.These measured values can beprocessed with the help of theCFC logic editor.

Commissioning and testfunctions

Special attention has been paidto commissioning. All binary in-puts and outputs can be dis-played and set directly. Thiscan simplify the wiring checksignificantly for the user.The measured values can bedisplayed via DIGSI 4 on the PCscreen as primary, secondaryand/or percentage values si-multaneously. This provides acomplete overview of the ac-tual system conditions.The 7SD610 provides a circuit-breaker test function. Single-and three-pole TRIP com-mands can be issued and fol-lowed by a reclosing com-mand. The pole open time canbe set separately from theauto-reclosure dead time.

4 predefined setting groups

The settings of the 7SD610 re-lay can be adapted quickly tosuit changing network configu-rations. 4 setting groups can bepredefined during commission-ing by using DIGSI 4. The set-ting groups can be activated viabinary inputs, via DIGSI 4 (localor remote), via the integratedkeypad or via the serial substa-tion control interface.


LSP2

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LSP2

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LSP2

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f

Operational mea-sured values areclearly shown onthe LCD display

Some fault indica-tions are shownautomatically onthe LCD display

Function RegionWorld USA DE

Frequency50/60 Hz

preset to50 Hz 60 Hz 50 Hz

Inverse-timecharacteristic forphases

IEC, ANSI1)

preset to IEC

ANSI1) IEC

Inverse-timecharacteristic forearth

IEC, ANSI1)

Logarithmicinversepreset to IEC

ANSI1) IEC

Overcurrent-timeprotection

3 3 –

1) Disc-emulation with inverse-time characteristicmay be applied with ANSI curves

Control

In addition to the protectionfunctions, the SIPROTEC 4units also support all controland monitoring functions re-quired for operating medium-voltage or high-voltage substa-tions. The principle task is reli-able control and monitoring ofswitchgear and processes. Thestatus of the circuit-breaker ordisconnectors can be obtainedvia auxiliary contacts andtransferred to the 7SD610 viabinary inputs. Therefore it ispossible to detect and indicateboth the OPEN and CLOSE po-sition or a faulty or intermediateposition. The switchgear or cir-cuit-breaker can be controlledvia:− integrated operator panel− binary inputs− substation control system

− DIGSI 4.

Command processing

The 7SD610 supports all thetasks required for commandprocessing, including the pro-cessing of single and doublecommands with or withoutfeedback as well as monitoringof the control process. Thecontrol actions are monitored interms of using functions suchas runtime and subject to auto-matic command termination af-ter feedback from the externalprocess is provided to the7SD610.Typical applications are:• Single and double com-

mands and feed-back• User-definable bay interlocks• Operating sequences com-

bining several switching op-erations such as control ofcircuit-breakers, disconnec-tors and earthing switches.

• Derived triggering of switch-ing operations, indications oralarms by logical combinationof existing information.

Switching priorities

The switching authority is se-lected by settings, DIGSI 4, bi-nary input or - if available - bymeans of key-operatedswitches. The hierarchy of theswitching authority is as fol-lows: LOCAL, DIGSI 4,REMOTE. If the ”LOCAL”mode is selected, only localswitching operations are possi-ble. Every switching operationand change of breaker positionis stored in the status indicationmemory.The switching commandsource, switching device,cause (i.e. spontaneous changeor command) and result of aswitching operation are re-corded.

Chatter disable

The chatter disable featureevaluates whether the num-ber of status changes of binaryinput exceeds a specified valuein a defined period of time. Ifso, this binary input is blockedfor a certain period.

Filter time / filtering anddelay of indications

All binary indications can besubjected to a filter time (indi-cation delay) to prevent spuri-ous operation.

Indications can be filtered ordelayed. Filtering serves tosuppress transient changes atthe indication input. Theindication is passed on only ifthe voltage is still present aftera set period of time. In the caseof indication delay, there is adelay for a preset time. The in-formation is passed on only ifthe voltage is still present afterthis time.

Indication derivation

A further indication (or a com-mand) can be derived from anexisting indication. Group indi-cations can also be formed.The number of indications viathe system interface can thusbe reduced and restricted tothe most important signals.

Data transmission lockout

A data transmission lockoutcan be activated, so as to pre-vent transfer of information tothe control center during workon the unit.

Test mode

During commissioning a testmode can be selected; all indi-cations then have a test modesuffix for transmission to thecontrol center.


Fig. 20


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Control and automation functions

Connection to current andvoltage transformers

A typical connection is to thephase CT. The residual currentat the IE input is formed bysummation of the phase cur-rents. This ensures optimumsupervision functions for thecurrent.Optionally, voltages are mea-sured by means of voltagetransformers and are fed to theunit as a phase-to-earth volt-age. The zero voltage is derivedfrom the summation voltage bycalculation performed in theunit.As a matter of fact, the 7SD610unit does not require any volt-ages for operation as differen-tial protection.

Typical connection

Fig. 21Typical connection to current transformers

Siemens SIP 5.4 ⋅ 2001 17

Circuit-breaker

Voltage inputs, optional

Inom

Vnom VL1

VL2

VL3

VE

IL1

IL2

IL3

IE

Fig. 22Typical connection to current transformers with optional voltage inputs

Circuit-breaker

IL1

IL2

IL3

IE


Hardware

Analog inputs Rated frequency 50 or 60 Hz (selectable)

Rated current Inom 1 or 5 A (selectable)

Rated voltage Vnom 80 to 125 V (selectable)

Power consumptionin CT circuits with Inom = 1 A

with Inom = 5 Ain VT circuits

Approx. 0.05 VAApprox. 0.3 VAApprox. 0.1 VA

Thermal overload capacityin CT circuits

Dynamic (peak value)in VT circuits for highly sensitiveearth-fault protection

in VT circuits

Inom100 A for 1 s30 Inom for 10 s4 Inom continuous250 Inom (half sine)

300 A for 1 s100 A for 10 s15 A continuous230 V per phase continuous

Auxiliary voltage Rated voltages 24 to 48 V DC60 to 125 V DC110 to 250 V DCand 115 V AC (50/60 Hz)

Permissible tolerance -20% to +20%

Superimposed AC voltage (peak to peak) ≤ 15%

Power consumptionunder normal operating conditions Approx. 8 W

Approx. 18 W, depending on design

Bridging time during failure of the auxiliary voltageVaux ≥ 110 V ≥ 50 ms

Binary inputs QuantityRated voltage rangePickup thresholdFunctions are freely assignable

7 (marshallable)24 to 250 V, bipolar17 or 73 V (selectable)

Minimum pickup thresholdRanges are settable by means ofjumpers for each binary input

17 or 73 V DC (bipolar)

Maximum permissible voltage 300 V DC

Current consumption, energized Approx. 1.8 mA

Output relay Command / indication relayQuantity 5 (marshallable)

1 alarm contact (not marshallable)

Switching capacityMakeBreakBreak (with resistive load)Break (with L/R ≤ 50 ms)

1000 W / VA30 VA40 W25 W

Switching voltagePermissible total current

250 V30 A for 0.5 seconds5 A continuous

LED QuantityRUN (green)ERROR (red)LED (red), function can be assigned

117


Technical data

Mechanical construction Housing 7XP20 For dimensions refer to dimension drawings

Degree of protection acc. to EN 60 529For front side of housingFor rear side of housingflush-mounting housingsurface-mounting

For the terminals

IP 51

IP 50IP 51IP 2x with terminal cover put on

WeightFlush-mounting housing1/3 x 19"

Surface-mounting housing1/3 x 19"

4 kg

6 kg

Serial interfaces(front side of unit)

Operating interface 1for DIGSI 4 or browser

Connection Non-isolated, RS232,front panel, 9-pin subminiature connector (SUB-D)

Baud rate 4800 to 115200 baudssetting as supplied: 38400 Bd; parity 8E1

Serial interfaces(rear side of unit)

Time synchronizationDCF77/ IRIG-B signal

Connection

Voltage levels

9-pin subminiature connector (SUB-D)(terminals with surface-mounting housing)5 V, 12 V or 24 V (optional)

Service interface(operating interface 2)for DIGSI 4 / modem / service/browser

Isolated RS232/RS485Dielectric testDistance for RS232Distance for RS485

9-pin subminiature connector (SUB-D)500 V / 50 HzMax. 15 mMax. 1000 m

System interfaceIsolated RS232/RS485

Baud rateDielectric testDistance for RS232Distance for RS485

IEC60870-S-1039-pin subminiature connector (SUB-D)4800 to 19200 bauds500 V / 50 HzMax. 15 mMax. 1000 m

For fiber-optic cableOptical wavelengthPermissible attenuationDistance (bridgable)

ST connectorλ = 820 nmMax. 8 dB for glass-fiber 62.5/125 µmMax. 1.5 km

Remote relay interface(Protection interface)

Quantity 1




Technical data

Serial interfaces

Remote relay / protectioninterface

820 nm FO interface with clock recovery

Direct connection up to 1.5 km or for connectionto the communication converters820 nm FO interface for direct connection;direct connection up to 3.5 km1300 nm FO interface direct connection up to 10 km

1300 nm FO interface direct connection up to 35 km

For 62.5/125 µm multimode glass-fiber,ST connector

For 62.5/125 µm multimode glass-fiber,ST connectorFor 9/125 µm monomode glass-fiber,ST connectorFor 9/125 µm monomode glass-fiber,FC connector

External communicationconverter with X21 or G703interface

External communication converter for linking theoptical 820 nm interface of the unit (option with clockrecovery) to the X21/G703.1 interface of the communicationnetworkElectrical X21 or G703.1 interface settable by jumperBaud rate settable by jumperFO interface with 820 nm with clock recovery

Electrical X21interface at communication converter

Electrical G703.1 interface at communication converter

Max. 1.5 km with 62.5/125 µm multimodeglass-fiber to protection relay64/128/512 kbit (settable by jumper)max. 800 m, 15-pin connector64 kbit/s max. 800 m, screw-type terminal

External communication1)

converter with digital networkinterface

External communication converter for linking the optical820 nm interface of the unit (option with clock recovery)to the S0 interface of a leased digital line or dial up lineOperating mode settable with terminal program2 FO interfaces for 820 nm with clock recovery

Electrical S0 interface

Max. 1.5 km with 62.5/125 µm multimodeglass-fiber to protection relay64/128/ kbit (settable by jumper)

External communication1)

converter for connection toleased lines

External communication converter for linking the optical820 nm interface of the unit (option with clock recovery)to twisted telephone pairs operated as leased lines.Bridgeable distance: 8 km max.FO interface for 820 nm with clock recoveryElectrical interface to leased line (5 kV-isolated)

Max. 1.5 km with 62.5/125 µm multimodeglass-fiber to protection relay 128 kbit

Permissible time delay(Duration of data transmission)

Delay of telegrams due to transmission from one unitto the other. Delay is constantly measured and adjusted

Max. 30 ms for transmission path. Permissiblemax. value is settable, dynamic adjustment/correction



Electrical tests

Specifications Standards IEC 60255 (product standards)ANSI/IEEE C37.90.0/.1/.2UL 508DIN 57 435 Part 303For further standards see “Individual tests”

Insulation tests Standards IEC 60255–5 and 60870-2-1

Voltage test (100 % test)All circuits except for auxiliary supply, binary inputs,communication and time synchronization interfaces

2.5 kV (rms), 50/60 Hz

Auxiliary voltage and binary inputs (100 % test) 3.5 kV DC

RS485/RS232 rear side communication interfacesand time synchronization interface (100 % test)

500 V (rms), 50/60 Hz

Surge voltage test (type test)All circuits except for communication interfacesand time synchronization interface, class III

5 kV (peak); 1.2/50 µs; 0.5 J,3 positive and 3 negative surges in intervalsof 5 s

EMC tests for noise immunity(Type tests)

Standards IEC 60 255-6; IEC 60 255-22 (product standard)EN 50082-2 (generic standard),DIN VDE 0435 Part 303

High-frequency testIEC 60 255-22-1 class III and DIN 57 435Part 303, class III

2.5 kV (peak); 1 MHz; τ=15 ms;400 surges per s; test duration 2 s

Discharge of static electricityIEC 60255–22–2 class IVand EN 61000–4–2, class IV

8 kV contact discharge; 15 kV air discharge;both polarities; 150 pF; Ri = 330 Ω

Exposure to RF field, non-modulatedIEC 60255–22–3 (report) class III

10 V/m; 27 to 500 MHz

Exposure to RF field, amplitude-modulatedIEC 61000–4–3, class III

10 V/m; 80 to 1000 MHz; 80 % AM; 1 kHz

Exposure to RF field, pulse-modulatedIEC 61000–4–3/ ENV 50204, class III

10 V/m; 900 MHz; repetition frequency 200 Hz;duty cycle 50 %

Fast transient interference/burstsIEC 60255–22–4 andIEC 61000–4–4, class IV

4 kV; 5/50 ns; 5 kHz; burst length = 15 ms;repetition frequency 300 ms; both polarities;Ri = 50 Ω; test duration 1 min

High energy surge voltages (SURGE),IEC 61000-4-5 installation class IIIAuxiliary supply

Measurement inputs, binary inputs,binary output relays

Impulse: 1.2/50 µs

Common (longitudinal) mode: 2 kV; 12 Ω; 9 µFDifferential (transversal) mode:1 kV; 2 Ω; 18 µF

Common (longitudinal) mode: 2 kV; 42 Ω; 0.5 µFDifferential (transversal) mode: 1 kV; 42 Ω; 0.5µF

Conducted RF, amplitude-modulatedIEC 61000–4–6, class III

10 V; 150 kHz to 80 MHz; 80 % AM; 1 kHz

Magnetic field with power frequencyIEC 61000–4–8, class IV; IEC 60255–6

30 A/m continuous; 300 A/m for 3 s; 50 Hz0.5 mT; 50 Hz

Oscillatory surge withstand capabilityANSI/IEEE C37.90.1

2.5 to 3 kV (peak); 1 to 1.5 MHzdamped wave; 50 surges per second,duration 2 s, Ri = 150 to 200 Ω

Fast transient surge withstand capabilityANSI/IEEE C37.90.1

4 to 5 kV; 10/150 ns; 50 impulses per second;both polarities; duration 2 s; Ri = 80 Ω

Radiated electromagnetic interferenceANSI/IEEE C37.90.2

35 V/m; 25 to 1000 MHz

Damped oscillationIEC 60694, IEC 61000-4-12

2.5 kV (peak value); polarity alternating 100 kHz;1 MHz; 10 and 50 MHz; Ri = 200 Ω

EMC tests for interferenceemission(Type test)

Standard EN 50081-1 (generic standard)

Radio interference voltage on lines,only auxiliary voltageIEC-CISPR 22

150 kHz to 30 MHzclass B

Interference field strengthIEC-CISPR 22

30 to 1000 MHzclass B



Technical data

Vibration and shock stress

in service Standards IEC 60255–21 and IEC 60068–2VibrationIEC 60255–21–1, class 2IEC 60068–2–6

Sinusoidal10 to 60 Hz: ±0.075 mm amplitude;60 to 150 Hz: 1 g accelerationfrequency sweep 1 octave/min20 cycles in 3 orthogonal axes

ShockIEC 60255–21–2, class 1IEC 60068–2–27

Half-sinusoidalAcceleration 5 g, duration 11 ms, 3 shocks on eachof the 3 axes in both directions

Vibration during earthquakeIEC 60255–21–2, class 1IEC 60068–3–3

Sinusoidal1 to 8 Hz: ± 3.5 mm amplitude(horizontal axis),1 to 8 Hz: ± 1.5 mm amplitude(vertical axis),8 to 35 Hz: 1 g acceleration(horizontal axis),8 to 35 Hz: 0.5 g acceleration(vertical axis),Frequency sweep 1 octave/min1 cycle in 3 orthogonal axes

during transport Standards IEC 60255–21 and IEC 60068–2

VibrationIEC 60255–21–1, class 2IEC 60068–2–6

Sinusoidal5 to 8 Hz: ±7.5 mm amplitude;8 to 150 Hz: 2 g accelerationFrequency sweep 1 octave/min20 cycles in 3 orthogonal axes

ShockIEC 60255–21–2, class 1IEC 60068–2–27

Half-sinusoidalAcceleration 15 g, duration 11 ms, 3 shocks oneach of the 3 axes in both directions

Repetitive shockIEC 60255–21–2, class 1IEC 60068–2–29

Half-sinusoidalAcceleration 10 g, duration 16 ms,1000 shocks on each of the 3 axesin both directions

Climatic stress tests

Temperatures Standards IEC 60255-6Temperature during service – 5 to + 55 °C + 25 to + 131 °F

Temporary permissible temperature limitduring service

– 20 to + 70 °C - 4 to + 158 °F(The legibility of the display may be affectedabove 55 °C/131 °F)

Temperature limit during storage – 25 to + 55 °C - 13 to 131 °F

Temperature limit during transport(Storage and transport with standard factorypacking)

– 25 to + 70 °C - 13 to 158 °F

Humidity Permissible humidity stress;It is recommended to arrange the units in such a way,that they are not exposed to direct sunlight or pro-nounced temperature changes that could causecondensation.

Annual average ≤ 75 % relative humidity;on 56 days in the year up to 93 % relative humid-ity; moisture condensation during operation is notpermitted

CE-conformity The product is in conformity with the directive of theCouncil of the European Communities on the approximationof the laws of the member states relating to electromagne-tic compatibility (EMC Council directive 89/336/EEC) andconcerning electrical equipment for application withinspecified voltage limits (low-voltage directive 73/23 EEC).The device is designed in accordance with the internationalstandards of IEC 60255 and the national standardDIN 57435/Part 303 (corresponds to VDE 0435/Part 303).Further applicable standards:ANSI/IEEE C37.90.0 and C37.90.1

This conformity is the result of a test that was per-formed by Siemens AG in accordance withArticle 10 of the directive in conformance with ge-neric standards EN 50081-2 and EN 50082-2 forthe EMC directive and EN 60255-6 for thelow-voltage directive.

Functions

Differential protectionANSI 87L, 87TSensitive differential currenttrip stageIDiff>

Setting rangeIDiff> Inom secondary 1 A

secondary 5 ATripping time

IDiff> 2 x IDiff > (setting value)

0.1 to 20 A (steps 0.01 A)0.5 to 100 A

Typical 35 ms with FO cable

High current differential tripstageIDiff>>

Setting rangeIDiff>> secondary 1 A

secondary 5 ATripping time

IDiff> 2 x IDiff >> (setting value)

0.8 to 100 A (steps 0.01 A)4.0 to 50 A

Typical 16 ms with FO cable

Thermal overload protectionANSI 49

Setting rangeFactor k to IEC 60255.8Time constant τThermal alarm stage ΘAlarm/ΘTrip,

Current-based alarm stage IAlarmCalculating mode for overtemperature

Pickup time characteristic

Reset ratioΘ/ΘAlarmΘ/ΘTripI / IAlarm

Tolerances

0.1 to 4 (steps 0.01)1 to 999.9 min (steps 0.1 min)50 to 100 % referred to tripping temperature(steps 1 %)0.1 to 4 A(1A) / 0.5 to 5 A(5A) (steps 0.01 A)Θmax, Θmean, Θwith Imax

( )t =

−

− ⋅τ ln

I I

I I

2 2

2 2pre

Nk

Approx. 0.99Approx. 0.99Approx. 0.99Class 10 % acc. to IEC 60255-8

Backup / emergencyovercurrent protectionANSI 50(N), 51(N)

Operating modes Backup or emergency mode

Characteristic 2 definite-time stages / 1 inverse-time stage

Definite-time overcurrentprotectionANSI 50, 50N

Phase current pickup Iph>> 0.1 to 25 A (1A) / 0.5 to 125 A (5A) (step 0.01 A)or inactive

Earth current pickup 3I0>> 0.05 to 25 A (1A) / 0.25 to 125 A (5A) (step 0.01 A)or inactive

Phase current pickup Iph> 0.1 to 25 A (1A) / 0.5 to 125 A (5A) (step 0.01 A)

Earth current pickup 3I0> 0.05 to 25 A (1A) / 0.25 to 125 A (5A) (step 0.01 A)

Time delay 0 to 30 s (step 0.01s) or inactive

TolerancesCurrent pickupDelay times

≤ 3% setting value or 1% of Inom±1 % setting value or 10 ms

Operating time Approx. 25 ms

Inverse-time overcurrentprotectionANSI 51, 51N

Phase current pickup Ip 0.1 to 4 A (1A) / 0.5 to 20 A (5A) (step 0.01 A)

Earth current pickup 3I0P 0.05 to 4 A (1A) / 0.25 - 20 A (5A) (step 0.01 A)

Tripping characteristics Tripping time characteristics acc. to IEC 60255-3 Normal inverse; very inverse; extremely inverse;long time inverse

Tripping time characteristics acc. to ANSI/IEEE(not for DE region, see selection and ordering data10th position)

Inverse; short inverse; long inverse;moderately inverse; very inverse;extremely inverse; definite inverse

Time multiplier for IEC characteristics T Tp = 0.05 to 3 s (step 0.01 s) or inactive

Time multiplier for für ANSI characteristics D DIP = 0.5 to 15 (step 0.01) or inactive

Pickup threshold Approx. 1.1 I/Ip (ANSI: I/Ip = M )

Reset threshold Approx. 1.05 x I/Ip (ANSI: I/Ip = M )

TolerancesOperating time for 2 ≤ I/Ip ≤ 20

≤ 5% of setpoint ± 15ms



Instantaneous high speedswitch-onto-fault overcurrentprotectionANSI 50HS

Operating mode Active only with connected auxiliary contacts

Characteristic 2 independent stages

Pickup current I>>>

Pickup current I>>>>

0.1 to 15 A (1A) / 0.5 to 75 A (5A) (step 0.01 A) orinactive1 to 25 A (1A) / 5 to 125 A (5A) (step 0.01 A) orinactive

Reset ratio Approx. 0.95

TolerancesCurrent starting ≤ 3% of setting value or 1 % Inom

Auto-reclosureANSI 79

Number of auto-reclosures Up to 8

Operating modes with line voltage check only 1-pole; only 3-pole, 1- or 3-pole, adaptive ARDiscrimination between successful andnon-successful reclose attempts

Dead times T1-ph, T3-ph, TSeq 0.01 to 1800 s (step 0.01s) or inactive

Action times 0.01 to 300 s (step 0.01s) or inactive

Reclaim times 0.5 to 300 s (step 0.01s)

CLOSE command duration 0.01 to 30 s (steps 0.01s)

TolerancesTime stagesVoltage limit values

1 % of setting value or 10 ms≤ 3% of setting value or 0.5 V

Breaker failure protectionANSI 50BF

Number of stages 2

Pickup of current element 0.05 to 20 A (1A) / 0.25 to 100 A (5A)(step 0.01 A)

Time delays T11phase, T13phase,T2 0 to 30 s (steps 0.01s) or inactive

Additional functions CB synchronism monitoring

Reset time 10 ms, typical

TolerancesCurrent limit valueTime stages

≤ 3% of setting value or 1% Inom1 % of setting value or 10 ms


Technical data

Operational measured values Representation Primary, secondary and percentage referredto rated value

Currents 3 x IPhase ; 3I0; IE; I1; I2

Tolerances10 to 50 % Inom50 to 200 % Inom

Typical ≤ 1 % of 50 % InomTypical ≤ 1 % of measured value

Voltages 3 x VPhase-Earth; 3 x VPhase-Phase; 3V0, V1, V2

Tolerances10 to 50 % Vnom50 to 200 % Vnom

Typical ≤ 1 % of 50 % VnomTypical ≤ 1 % of measured value

Power with direction indication P, Q, S

TolerancesP: for cos ϕ = 0.7 to 1 and V/Vnom , I/Inom = 50 to 120%Q: for sin ϕ = 0.7 to 1 and V/Vnom , I/Inom = 50 to 120%S: for V/Vnom , I/Inom = 50 to 120%

Typical ≤ 3%Typical ≤ 3%Typical ≤ 2%

FrequencyTolerance

f≤ 20mHz

Power factorTolerance for cos ϕ = 0.7 to 1

cos ϕTypical ≤ 3 %

Remote measurements 3 x IPhase-Earth; 3I0, 3 x VPhase-Earth; 3V0

Overload measured values Θ/ΘTrip L1; Θ/ΘTrip L2;Θ/ΘTrip L3; Θ/ΘTrip

Fault record storage Measured analog channels 3 x IPhase, 3I0, 3IDiff3 x VPhase, 3V0, 3IRestraint

Max. number of available recordings 8, backed-up by battery if auxiliary voltagesupply fails

Sampling intervals 20 samplings per cycle

Total storage time Approx. 10 s

Binary channels Pickup and trip information; number andcontents can be freely configured by theuser

Additional functions Measured value supervision Current sumCurrent symmetryBus wire supervision

IndicationsOperational indicationsSystem disturbance indication

Buffer size 200Storage of signals of the last 8 faults,buffer size 600

Switching statistics Number of breaking operations per CB poleSum of breaking current per phaseBreaking current of last trip operationsMax. breaking current per phase

Circuit-breaker test TRIP/CLOSE cycle, 3 phasesTRIP/CLOSE cycle per phase

Dead time for CB TRIP / CLOSE cycle 0 to 30 s (steps 0.01s)

Commissioning support Operational measured values, CB test,status display of binary indication inputs,setting of output relays, generationof indications for testing serial interfaces,commissioning support via Web-browser,test mode, commissioning mode




Designation Order No. Order Code

Selection and ordering data

Differential protection relay for two line ends 7SD610 -¨¨¨¨¨ - ¨¨0 ¨¨¨

with 4-line display

Housing width 1/3 x 19”, 7 LEDs

Measuring inputIPhase = 1 A, IE = 1 A (min. = 0.05 A) 1IPhase = 5 A, IE = 5 A (min. = 0.25 A) 5

Auxiliary voltage (converters, binary inputs)24 to 48 V DC, binary input threshold 17 V2)

260 to 125 V DC1),binary input threshold 17 V2)

4110 to 250 V DC1), 115 V AC, binary input threshold 73 V2) 5

Housings/number of binary inputs and outputsFlush-mounting housing, screw-type terminals 1/3 x 19”/7 BI, 6 BO B

Surface-mounting housing, 2-tier terminals, 1/3 x 19”/7 BI, 6 BO F

Flush-mounting housing, plug-in terminals, 1/3 x 19”/7 BI, 6 BO K

Region-specific default settings / language settingsRegion DE, language: German; selectable ARegion World, language: English (GB); selectable BRegion US, language: English (USA); selectable C

System interfaces; functions and hardwarenone 0IEC protocol, electric RS232 1IEC protocol, electric RS485 2IEC protocol, optical 820 nm, ST connector 3

DIGSI/modem interface on rear side of unit and relay interface 1 9 M ¨¨

DIGSI / modem interface (rear side of unit)none 0DIGSI 4, electric RS232 1DIGSI 4, electric RS485 2

Remote relay interface 1/ protection interfaceoptical 820 nm, 2 ST connectors, FO length up to 1.5 kmfor direct connection or via communication networks A

optical 820 nm, 2 ST connectors, FO length up to 3.5 kmfor direct connection via multimode fiber B

optical 1300 nm, 2 ST connectors, FO length up to 10 kmfor direct connection via monomode fiber C

optical 1300 nm, 2 FC connectors, FO length up to 35 kmfor direct connection via monomode fiber D

Functions 1Tripping only 3-pole, without auto-reclosure 0Tripping only 3-pole, with auto-reclosure 1Tripping 1- and 3-pole, without auto-reclosure 2Tripping 1- and 3-pole, with auto-reclosure 3

Backup protection functionWith emergency/backup overcurrent-time protection BWith emergency/backup overcurrent-time protection, with breaker failure protection C

Additional functions 1Without additional functions AWith transformer extensions (vector group adaption) EWith 4 remote commands Jwith 4 remote commands transformer extensions (vector group adaption) N

Opto-electric communication converters (optical to X21 or G703.1) 7XV5662-0AA00(optical to digital telephone 7XV5662-0AB00

3)

communication network)(optical to twisted telephone pairs) 7XV5662-0AC003)

Additional order of interface modulesDescription Order No.Protection interface module 820 nm, multimode cable, ST connector, 1,5 km C53207-A322-D651-1Protection interface module 820 nm, multimode cable, ST connector, 3,5 km C53207-A322-D652-1Protection interface module 1300 nm, monomode cable, ST connector, 10 km C53207-A322-D653-1Protection interface module 1300 nm, monomode cable, FC connector, 35 km C53207-A322-D654-1

1) Both auxiliary voltage can beconnected via plug-in jumpers.

2) BI threshold per binary input aresettable for two stages by usingplug-in jumpers.


Accessories

LSP2

089f

.eps

LSP2

090f

.eps

LSP2

091f

.eps

LSP2

093f

.eps

LSP2

092f

.eps


Fig. 26Short-circuit linkfor current contacts

Fig. 27Short-circuit linkfor voltage contacts/indications contacts

Fig. 242-pin connector

Fig. 253-pin connector

Fig. 23Mounting railfor 19" rack

Description Order No. Size of package Supplier Fig.

Connector 2-pin3-pin

C73334-A1-C35-1C73334-A1-C36-1

11

SiemensSiemens

2324

Crimpconnector

CI2 0.5 to 1 mm2 0-827039-10-827396-1

40001

AMP 1)

AMP 1)

CI2 1 to 2.5 mm20-827040-10-827397-1

40001

AMP 1)

AMP 1)

Type III + 0.75 to 1.5 mm20-163083-70-163084-2

40001

AMP 1)

AMP 1)

Crimpingtool

for Type III +and matching femalefor CI2and matching female

0-539635-10-539668-20-734372-11-734387-1

1

1

AMP 1)

AMP 1)

AMP 1)

AMP 1)

19"-mounting rail C73165-A63-D200-1 1 Siemens 22

Short-circuit links for current terminalsfor other terminals

C73334-A1-C33-1C73334-A1-C34-1

11

SiemensSiemens

2526

Safety cover for terminals largesmall

C73334-A1-C31-1C73334-A1-C32-1

11

SiemensSiemens

Product description Variants Order No.

DIGSI 4

Software for configuration and operationof Siemens protectionMS Windows program, running underMS Windows (version Windows 95and higher)Unit templates, COMTRADE Viewer,electronic manual included

Basis

License for 10 computers, on CD-ROMDIGSI 4 and DIGSI 3(authorization with license number).Demo

Demo version on CD-ROMProfessional

Complete version: Basis and all optional packageson CD-ROM, DIGSI 4 and DIGSI 3

7XS5400-0AA00

7XS5401-0AA00

7XS5402-0AA00

Connecting cable (copper)

Voltage transformer miniaturecircuit-breaker

1)

Instruction manual 7SD610, English7SD610, German

Catalog 7SD610, English7SD610, German

between PC and relay(9-pin female connector to 9-pin male connector)Rated current 1.6 A; thermal overload release 1.6 A;Over current trip 6 A

7XV5100-4

3RV1611-1AG14

C53000-G1176-C145-1C53000-G1100-C145-1

E50001-K4405-A141-A1-7600E50001-K4405-A141-A1

1) AMP Deutschland GmbHAmperestr. 7–1163225 LangenGermany

Tel.: +49 6103 709-0Fax +49 6103 709-223

SIPROTEC 4 - 7SD610Differential Protection Relay for Two Line EndsConnection diagrams

Protectioninterface

Service interfaceDIGSI, Modem

System interface

Front interface

Time synchronization

Fig. 27Connection diagram

Fig. 28Serial interfaces

Surface-mounting housing

Flush-mounting housing

IL1

IL2

IL3

VL1

VL2

VL3

V4

BI1

BI2

BI3

BI4

BI5

BI6

BI7

Serial interface(see below)

Powersupply

Live statuscontact

Earth atrear of housing

R4

R5


I4

R3

R1

R2

7SD610

Mounting plate

RS232-Interface

SUB-D-connector

Cutout 25 x 1050.98 x 4.14(without paint)

Sloped FO case

Side view

Dimension drawings in mm/in inches


Rear view 1Unit with screw-typeterminals

Rear view 2Unit with plug-interminals

Fig. 29In 1/3 7XP20 flush-mounting housingfor panel flush-mounting/cubide mounting

FO

Panel cutout

Fig. 30In 1/3 7XP20surface-mounting housingfor panel surface mounting

Front viewwithout FO case

Side view

Siemens Companies and Representatives Power Transmission and Distribution


Europe

AustriaSiemens AG ÖsterreichSiemensstr. 88 - 92A-1211 WienPhone: +43-5-1707-22522Fax: +43-5-1707-53075

BelgiumSiemens N. V.Chaussée de Charlerois 116B-1060 BrüsselPhone: +32-2-53621-2595Fax: +32-2-53621-6900

Czech RepublicSiemens s. r. o.Evropska 33aCZ-16000 Praha 6Phone: +420-2-33032130Fax: +420-2-33032190

DenmarkSiemens A / SBorupvang 3DK-2750 BallerupPhone: +45-4477 4309Fax: +45-4477 4020

FinlandSiemens OyMajurinkatu 6FIN-02600 EspooPhone: +358-10-511 3846Fax: +358-10-511 3530

FranceSiemens S. A.39-47, boulevard OrnanoF-93527 Saint DenisPhone: +33-1-4922 3469Fax: +33-1-4922 3090

GreeceSiemens A. E.Artemidos 8GR-151 10 AthensPhone: +30-1-6864527Fax: +30-1-6864704

HungarySiemens Rt.Gizella út 51-57H-1143 BudapestPhone: +(36-1) 471-1686Fax: +(36-1) 471-1622

ItalySiemens S.p. A.Viale Savca 336I-20 126 MilanoPhone: +39-02-66762854Fax: +39-02-66762213

IrelandSiemens Ltd.8-11 Slaney RoadBallsbridgeDublin 11Phone: +353-1-603 2430Fax: +353-1-603 2499

NetherlandsSiemens Nederland N.V.Prinses Beatrixlaan 26NL-2595 AL Den HaagPhone: +31-70-333 3126Fax: +31-70-333 3225

NorwaySiemens A / SOstre Aker vei 90N-0518 OsloPhone: +47-22-633140Fax: +47-22-633796

PolandSiemens Sp.z.o.o. Northul. Zupnicza 11PL-03-821 WarszawaPhone:+48-22-8709120Fax: +48-22-8709139

Siemens Sp.z.o.o. Southul. Francuska 70PL-40-028 KatowicePhone:+48-32-2084153Fax: +48-32-2084159

PortugalSiemens S. A..Apartado 60300P-2700 AmadoraPhone:+351-1-417 8253Fax: +351-1-417 8071

SloveniaBranch office: Siemens Austria

SpainSiemens S.A.Ronda de EuropasE-28 760 Tres Cantos (Madrid)Phone:+34-91-5147562Fax: +34-91-5147037

SwitzerlandSiemens-Albis AGFreilagerstr. 28 - 40CH-8047 ZürichPhone:+41-1-495-3566Fax: +41-1-495-3253

TurkeySIMKO Ticaret ve Sanayi ASYakacik Yolu No: 11181430 Kartal-Istanbul-TurkeyPhone:+90-0216-4593741Fax: +90-0216-4592155

United KingdomSiemens plcSir William Siemens HousePrincess RoadManchester M20 2URPhone:+44-1-614465130Fax: +44-1-614465105

Africa

EgyptSiemens Ltd.Cairo, P.O.Box 775 / 1151126, El Batal AhmedAbdel Aziz St.Mohandessin, GizaPhone:+20-2-3313315,Fax: +20-2-3313350

South AfricaSiemens Ltd.,300 Janadel AvenuePrivate Bag X71Halfway House 1685Phone:+27-11-652 2627Fax: +27-11-652 2263

Australia

Siemens Ltd., PT & DMelbourne Head Office885 Mountain HighwayBayswater VIC 3153Phone:+613-9721 2819Fax: +613-9721 5516

North America

USASiemens PT&D, Inc.7000 Siemens Rd.Wendell , NC 27591Phone:+1-800-347 6657

+1 919 365 2196Fax: +1-919-365 2552Internet: www.siemenstd.com

MexicoSiemens S.A. DE C.V.Poniente 116, no. 590Col. Ind. VallejoDelegación Azcapotzalco02300 Mexico D.F.Phone: +52-5-3295336Fax: +52-5-3295324

South America

ArgentiniaSiemens S.A.Fab. Ruta 8 Buenos AiresCasilla de Correo 321650 San Martin-Prov. de B. A.Phone: +54114738 7100 ext. 3910Fax: +54114738 7201

BrazilSiemens Ltda.Coronel Bento Bicudo, 111 Lapa05069-900 São Paulo -SPPhone: +55-11-833 4079Fax: +55-11-833 4886

ColumbiaSiemens S.A., GDHSantafe de Bogotá,D.C.Cra 65 No. 11-83Apartado 8 01 50ConmutaPhone: +57-1-294 2272Fax: +57-1-294 2500

Costa RicaSiemens S.A.,P.O.Box 10022-1000La Uruca200 Este de la PlazaSan JoséPhone: +506 287 5120Fax: +506 233 5244

VenezuelaSiemens S.A.,Avenida Don DiegoCisneros/Urbanización Los RuicesCaracas 1071Phone: +58 2 2038109Fax: +58 2 2038613

Asia

Abu DhabiSiemens Resident EngineersP.O. Box 2154 DubaiUnited Arab EmiratesPhone: +9714 3319578Fax: +9714 3319547

ChinaSiemens Ltd., PT & DNo. 7, Wangjing Zhonghuan Nanlu,Chaoyang DistrictBeijing, 100015Phone: +86-10-6436 1888 ext. 3806Fax: +86-10-64381464

Hong KongSiemens Ltd., PTD58/F Central Plaza18 Harbour RoadWanchai, Hong KongPhone: +852-2583 3388Fax: + 852-28029908

IndiaSiemens Ltd., PTD / Plot No. 6ASector-18/Maruti Industrial AreaHUDA/Guragon-122001/HaryanaPhone: +91-124 346426 ext. 2100Fax: +91-124 346431

IndonesiaP.T. Siemens IndonesiaJl. Jend. A. Yani Kav. B67-68Pulo Mas, Jakarta 13210P.O.Box 2469Jakarta 10001Phone:+62-21-4729 100Fax: +62-21-471 5055,

472 9201

KoreaSiemens Ltd10th Floor Asia Tower Bldg726, Yeoksam-dong, Kangman-guSeoul 135-719, KoreaPhone: +82-2-5277 805Fax: +82 2 5277 889

MalaysiaSiemensElectrical Engineering Sdn Bhd13thFloor, CP Tower11 Section 16/11, Jalan Damansara46350 Petaling JayaSelangor Darul EhsanPhone:+60-3-751 3929 (direct)Phone:+60-3-7513888 (switchb.)Fax: +60-3-757 0380

PakistanSiemens Pakistan Engineering Co.Ltd GT&DAkhvan House38 Sir Aga Khan RoadLahore 54000, PakistanPhone:+92 42 6278758Fax: +92 42 6370932

PhilippinesSiemens Inc., PT & D14 F Centerpoint Bldg.J. Vargas corner Garnet St.Ortigas, Pasig City 1605Phone.:+63-2-637 0900Fax: +63-2-633 5592

Saudi ArabiaSiemens Ltd PT&DJeddah Head OfficeP.O. Box 462121412 JeddahPhone:+966 2 6658420Fax: +966 2 6658490

+966 2 6630894

SingaporePower Automation89 Science Park, #04-13The Rutherford,Singapore 112861Phone.:+65-872 2688Fax: +65-872 3692

TaiwanSiemens Ltd., PT & D Dept.19th Floor, 333, Tun-Hua S. Road,Sec. 2, (P.O.Box 26-755)Taipei R.O.C.Phone.:+886-2-23788900 ext.832Fax: +886-2-2378 8958

ThailandSiemens Limited, EV SP Dept.Charn Issara Tower II, 32nd Floor2922/283 New Petchburi RoadBangkapi, HuaykwangBangkok 10320Phone.:+66-2-715-4813Fax: +66-2-715-4785

VietnamSiemens AGRepresentationThe Landmark Building, 2ndFloor5B Ton Duc Thang Str.District 1Ho Chi Minh CityPhone.:+84-8825 1900Fax: +84-8825 158


Catalog Index of the Power Transmission and Distribution Group (Protection and Substation Control Systems Division)

Title Designation Order No.

Numerical Protection Systems and Bay Control Units

Operation and Evaluation Software for Numerical Protection Devices LSA 2.0.2 E50001-K5702-A121-A1-7600Relay Selection Guide LSA 2.0.3 E50001-K5702-A031-A2-76007SJ41 Definite-Time Overcurrent Protection Relay LSA 2.1.10 E50001-K5712-A201-A2-76007SJ511 Numerical Overcurrent-Time Protection (Version V3) LSA 2.1.3 E50001-K5712-A131-A2-76007SJ512 Numerical Overcurrent-Time Protection (Version V3) LSA 2.1.4 E50001-K5712-A141-A3-76007SJ512 Numerical Feeder Protection (Version V3.6) LSA 2.1.30 E50001-K5712-A411-A1-4A00SIPROTEC 7SJ531 Numerical Line and Motor Protection with Control Function LSA 2.1.9 E50001-K5712-A191-A4-76007SJ551 Multi-Function Protection Relay LSA 2.4.2 E50001-K5742-A121-A3-7600SIPROTEC 4 - 7SJ61/62/63 6MD63 Multifunction Protection Relay and Bay Controller SIP 3.1 E50001-K4403-A111-A1-4A00SIPROTEC 7SJ600 Numerical Overcurrent, Motor and Overload Protection Relay SIP 3.2 E50001-K4403-A121-A1-7600SIPROTEC 7SJ602 Numerical Overcurrent, Motor and Overload Protection Relay SIP 3.3 E50001-K4403-A131-A1-7600SIPROTEC 7SJ601 Overcurrent Protection LSA 2.1.16 E50001-K5712-A261-A1-7600SIPROTEC 7SA511 Distance Protection Relay (Version V3) LSA 2.1.11 E50001-K5712-A211-A2-76007SA513 Line Protection Relay (Version V3) LSA 2.1.12 E50001-K5712-A221-A1-76007SA518/519 Overhead Control-Line Protection Relay (Version V3) LSA 2.1.14 E50001-K5712-A241-A2-7600SIPROTEC 4 - 7SA6 Distance Protection Relay for all Voltage Levels SIP 4.3 E50001-K4404-A131-A1-76003VU13 Miniature Circuit-Breaker LSA 2.1.8 E50001-K5712-A181-A2-76007SD502 Line Differential Protection with Two Pilot Wires LSA 2.2.1 E50001-K5722-A111-A2-76007SD503 Line Differential Protection with Three Pilot Wires LSA 2.2.2 E50001-K5722-A121-A2-76007SD511/512 Current Comparison Protection Relay (Version V3)for Overhead Lines and Cables LSA 2.2.3 E50001-K5722-A131-A2-76007UT512/513 Differential Protection Relay (Version V3)for Transformers, Generators and Motors LSA 2.2.4 E50001-K5722-A141-A2-7600SIPROTEC 7RW600 Numerical Voltage, Frequency and Overexcitation Relay SIP 2.1 E50001-K4402-A111-A1-7600SIPROTEC 7SS50 Version V1.2 Busbar/Circuit-BreakerFailure Protection Relay (Summation Current Transformer Version) SIPROTEC 5.1 E50001-K4405-A111-A1-7600SIPROTEC 7SD60 Numerical Current Differential Protection Relayfor Two Pilot-Wire Link SIP 5.2 E50001-K4405-A121-A2-7600SIPROTEC 4 - 7SD610 Universal Differential Protection Relay for Two Line Ends SIP 5.4 E50001-K4405-A141-A1-7600SIPROTEC 7SS52 Distributed Numerical Busbar and Circuit-BreakerFailure Protection Relay LSA 2.2.7 E50001-K5722-A171-A1-7600Auxiliary Current Transformers 4AM50, 4AM51, 4AM52and Isolating Transformers 7XR95 LSA 2.2.6 E50001-K5722-A161-A1-7600Introduction to Earth-Fault Detection LSA 2.3.1 E50001-K5732-A111-A2-76007SN71 Transient Earth-Fault Relay LSA 2.3.2 E50001-K5732-A121-A1-76007XR96 Toroidal Current Transformer LSA 2.3.3 E50001-K5732-A131-A1-76007VC1637 Earth-Leakage Monitor LSA 2.3.4 E50001-K5732-A141-A1-7600Introduction to Generator Protection LSA 2.5.1 E50001-K5752-A111-A1-76007SK52 Motor Protection LSA 2.4.1 E50001-K5742-A111-A1-76007UM511 Generator Protection Relay (Version V3) LSA 2.5.2 E50001-K5752-A121-A2-76007UM512 Generator Protection Relay (Version V3) LSA 2.5.3 E50001-K5752-A131-A2-76007UM515 Generator Protection Relay (Version V3) LSA 2.5.4 E50001-K5752-A141-A2-76007UM516 Generator Protection Relay (Version V3) LSA 2.5.5 E50001-K5752-A151-A1-7600SIPROTEC 4 - 7UM611/612 Multifunction Generator Protection Relay SIP 6.1 E50001-K4406-A111-A1-76007VE51 Synchronizing Unit LSA 2.5.7 E50001-K5752-A171-A1-76007VK512 Numerical Auto-Reclose/Check-Synchronism Relay LSA 2.7.3 E50001-K5772-A131-A1-76007SV7220 Power Supply Unit LSA 2.7.9 E50001-K5772-A191-A1-76007SV50 Numerical Circuit-Breaker Failure Protection Relay LSA 2.7.1 E50001-K5772-A111-A1-76007SV512 Numerical Circuit-Breaker Failure Protection Relay LSA 2.7.2 E50001-K5772-A121-A1-76007XV72 Test Switch LSA 2.6.2 E50001-K5762-A121-A1-76007VP151 Three-Phase Portable Test Set (Omicron CMC56) LSA 2.6.1 E50001-K5762-A111-A2-7600Communication for Protection DevicesCentralized and Remote Control of Siemens Protection Relays (Overview) SIPROTEC 8.1 E50001-K4408-A111-A1-7600Operating and Analysis Software DIGSI V3 LSA 2.8.2 E50001-K5782-A121-A1-7600DIGSI 4 - Software for Configuration and Operation of SIPROTEC 4 units SIP 8.2 E50001-K4408-A121-A1-7600DIGRA 4 - Software for the Visualization and Analysis of Fault Records SIP 8.3 E50001-K4408-A131-A1-7600

6MB252 Mini Bay Unit for Energy Automation with SICAM SIPROTEC 7.1 E50001-K4407-A111-A1-7600SIPROTEC 4 - 6MD66 Bay Control Unit SIP 7.2 E50001-K4407-A121-A1-7600Energy Automation

Substation SICAM RTU System SICAM 2.1.1 E50001-K5602-A111-A1-7600SICAM miniRTU 6MD202 SubRTU SICAM 2.2.1 E50001-K5602-A211-A1-7600SICAM microRTU 6MD2030 Substation SICAM 2.3.1 E50001-K5602-A311-A1-7600SICAM SAS Substation Automation System SICAM 3.1.1 E50001-K5603-A111-A1-7600PS20A-6EP8090 Power Supply Module SICAM 5.1.1 E50001-K5605-A111-A1-7600DI32-6MD1021 Digital Input Functional Module SICAM 5.2.1 E50001-K5605-A211-A1-7600AI32-6MD1031 Analog Input Functional Module SICAM 5.2.2 E50001-K5605-A221-A1-7600AI16-6MD1032 Analog Input Functional Module SICAM 5.2.3 E50001-K5605-A231-A1-7600Visualization System for SICAM SAS: SICAM WinCC SICAM 6.1.1 E50001-K5606-A111-A1-7600SICAM plusTOOLS Configuration System SICAM 6.2.1 E50001-K5606-A211-A1-7600

Order No.: E50001-K4405-A141-A1-7600Printed in GermanyKGK 0101 3.0 32 En 102057 6101/D6159

Responsible for:Technical contents: Norbert SchusterSiemens AG, PTD PA13, NuernbergGeneral editing: Claudia Kühn-SutionoSiemens AG, PTD CC T, Erlangen


Conditions of Sale and Delivery

Export Regulations Trademarks

Subject to theGeneral Conditions of Supplyand Deliveryfor Products and Services ofthe Electrical and ElectronicIndustry and to any otherconditions agreed upon withthe recipients of catalogs.

The technical data, dimensionsand weights are subject tochange unless otherwisestatedon the individual pagesof this catalog.The illustrations are for refer-ence only.

We reserve the right to adjustthe prices and shall charge theprice applying on the date ofdelivery

In accordance with present pro-visions of the GermanExport List and the USCommercial Control List,export licences are notrequired for the productslisted in this catalog.

An export licence may howeverbe required due to country-spe-cific application and final destina-tion of the products.Relevant are the export criteriastated in the delivery note andthe invoice regarding a possibleexport and reexport licence.Subject to change withoutnotice.

All dimensions in this catalogare given in mm, unless other-wise stated on the individualpages of this catalog.

Dimensions

All product designations usedare trademarks or productnames of Siemens AG or of othersuppliers.

www.ev.siemens.de Order No.: E50001-K4405-A141-A1-7600

Published by

Siemens AGPower Transmission and DistributionPower Automation DivisionPostfach 48 0690026 NürnbergGermany

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