siemens relay 7rw600

ProtectionSystems

CatalogSIP 2004SIPROTEC

Numerical Protection Relays

tpe002017RW600 UV/OV & Frequency

ONE bay, ONE IED (Intel-ligent Electronic Device)Siemens is the world mar-ket leader in deliveringcombined protection &control relays. We providecontrol functionality withthe CFC (Continuous func-tion chart), which is ac-cepted as state-of-art inindustrial automation(SIMATIC STEP 7) andmakes the life for the pro-tection engineers easier.

ONE DIGSIParameterisation - Softwareserves all productsSiemens is the first supplierto meet this strongcustomer demand to haveone software for allprotection products. DIGSIcan handle previousversions and the bus-barprotection while providingunrivalled functionality.

ONE single source for allproducts and servicesSiemens provides a fullproduct range for all mar-ket segments. In order toprovide optimal serviceswe have concentrated re-sources for important func-tions, e.g. one productmanagement, one productdevelopment, one factory,etc. We will support you inplanning, engineering,commissioning, relayco-ordination, type test,etc. all over the world.

Editorial

SIPROTEC more than just protection

This is the latest edition of the printed SIPROTEC Catalog. This

edition - which is now available - contains many suggestions by our

readers, along with information regarding innovations and supple-

mentary products. The SIPROTEC Catalog is also available on

CD ROM.

One of the new highlights is the SIPROTEC protection relays with

IEC 61850 communication. IEC 61850 was created by relay experts

and manufacturers alike. The goal of this standard is to achieve an

object-oriented communication structure within substations.

SIPROTEC protection relays and bay control units are the first to

feature the IEC 61850 standard. With the substation configurator, a

part of DIGSI 4, SIPROTEC units as well as other makes can be

configured in accordance with IEC 61850.

This SIPROTEC Catalog is supplemented by multimedia computer

animation tools.

+ CD-ROM SIPROTEC 4 you Features, Applications, Relays

+ CD-ROM SIPROTEC 4 you Start Up.

+ CD-ROM SIPROTEC 4 you IEC 61850 & ETHERNET.

You can order the printed SIPROTEC Catalog (and all the CD

ROMs) via the Internet free of charge. Please fill in a form at

www.siprotec.com/catalog. You may also consult your Siemens

representative or send us an e-mail ([email protected]).

This catalog will assist you by increasing your understanding of our

products and therefore help you to optimally and conveniently

utilize the available features and functionality. We wish you a pleas-

ant and productive experience with SIPROTEC.

BernhardW. Niessing

Vice President

Protection and Power Quality

1Product Selection PageRelay Functions 1/2

1 Product Selection

1

Siemens SIP 2004

Relay Functions

1/21/2

Dis

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Protection functions Type 7SA

513

7SA

522

7SA

6

7SD

600

7SD

57S

D61

0

7SJ4

57S

J46

7SJ6

007S

J602

7SJ6

17S

J62

7SJ6

37S

J64

7VH

607U

T512

7UT5

137U

T612

7UT6

137U

T63

7SS6

07S

S52

ANSI No.* Description

14 Locked rotor protection

21 Distance protection, phase

21N Distance protection, earth (ground)

21FL Fault locator

24 Overfluxing (V/f protection)

25 Synchronizing, synchronism check

27 Undervoltage

27/34 Stator earth fault 3rd harmonic

32 Directional power

32F Forward power

32R Reverse power

37 Undercurrent or underpower

40 Loss of field

46 Load unbalance, negative phase-sequence overcurrent

47 Phase-sequence voltage

48 Motor starting protection

49 Thermal overload

49R Rotor thermal protection

49S Stator thermal protection

50 Instantaneous overcurrent

50N Instantaneous earthfault overcurrent

50BF Breaker failure

51GN Zero speed and underspeed device

51 Overcurrent-time relay, phase

51N Overcurrent-time relay, earth

51V Overcurrent-time relay,voltage controlled

59 Overvoltage

59N Residual voltage earthfault protection

59GN Stator earth-fault protection

64 100 % Stator earth-fault protection(20 Hz)

64R Rotor earth fault

Standard function Option

* ANSI/EEE C 37.2: IEEE Standard Electrical Power System Device Function Numbers

1 Product Selection

1

Siemens SIP 2004 1/31/3

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Protection functions Type 7U

M51

17U

M51

27U

M51

57U

M51

6

7UM

617U

M62

7VK

617V

K51

2

7VE5

17V

E6

7SV

512

7SV

600

7RW

600


14 Locked rotor protection

21 Distance protection, phase

21N Distance protection, earth

21FL Fault locator

24 Overfluxing (V/f protection)

25 Synchronizing, synchronism check

27 Undervoltage

27/34 Stator earth fault 3rd harmonic

32 Directional power

32F Forward power

32R Reverse power

37 Undercurrent or underpower

40 Loss of field

46 Load unbalance, negative phase-sequence overcurrent

47 Phase-sequence voltage

48 Incomplete sequence, locked rotor

49 Thermal overload

49R Rotor thermal protection

49S Stator thermal protection

50 Instantaneous overcurrent

50N Instantaneous earth-faultovercurrent

50BF Breaker failure

51GN Zero speed and underspeed dev.

51 Overcurrent-time relay, phase

51N Overcurrent-time relay, earth

51V Overcurrent-time relay,voltage controlled

59 Overvoltage

59N Residual voltage earth-fault protection

59GN Stator earth-fault protection

64 100 % Stator earth-fault protection(20 Hz)

64R Rotor earth fault



1 Product Selection

1

Siemens SIP 2004

Relay Functions

1/4

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Protection functions Type 7SA

513

7SA

522

7SA

6

7SD

600

7SD

5

7SD

610

7SJ4

5

7SJ4

6

7SJ6

00

7SJ6

02

7SJ6

1

7SJ6

2

7SJ6

3

7SJ6

4

7VH

60

7UT5

12

7UT5

13

7UT6

12

7UT6

13

7UT6

3

7SS6

0

7SS5

2


67 Directional overcurrent

67N Directional earth-fault overcurrent

67G Stator earth-faultdirectional overcurrent

68 Out-of-step protection

74TC Trip circuit supervision


79 Auto-reclosure

81 Frequency protection

81R Rate of frequency change protection

Vector jump supervision

85 Carrier interface/remote trip

86 Lockout function

87G Differential protection generator

87T Differential protection transformer

87BB Differential protection busbar

87M Differential protection motor

87L Differential protection line

87N Restricted earth-fault protection



1 Product Selection

1

Siemens SIP 2004 1/5

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Protection functions Type 7U

M51

1

7UM

512

7UM

515

7UM

516

7UM

617U

M62

7VK

617V

K51

2

7VE5

17V

E6

7SV

512

7SV

600

7RW

600


67 Directional overcurrent

67N Directional earth-fault overcurrent

67G Stator earth-faultdirectional overcurrent


74TC Trip circuit supervision


79 Auto-reclosure

81 Frequency protection

81R Rate of frequency change protection

Vector jump supervision

85 Carrier interface/remote trip

86 Lockout function

87G Differential protection generator

87T Differential protection transformer

87BB Differential protection busbar

87M Differential protection motor

87L Differential protection line

87N Restricted earth-fault protection



Function overview

Description

Siemens SIP 2004

11 Generator Protection / 7RW600

11

11/79

Line protection

Voltage protection

Frequency protection

Generator protection

Voltage protection


Overexcitation protection

Transformer protection

Voltage protection


Power system decoupling

Voltage protection


Load shedding


Rate-of-frequency-change protection

Status measured values

Monitoring functions

Hardware

Software

Event logging

Fault recording

Continuous self-monitoring

Hardware

Auxiliary voltages: 24, 48 V DC 60, 110, 125 V DC 220, 250 V DC, 115 V AC

Local operation

LCD for setting and analysis

Housing for Flush-mounting 1/6 19-inch 7XP20; Surface-mounting 1/6 19-inch 7XP20

Communication ports

Personal computer

Via RS485 RS232 converter

Via modem

SCADA IEC 60870-5-103 protocol

Bus-capable

SIPROTEC 7RW600Numerical Voltage, Frequency and Overexcitation Protection Relay

The SIPROTEC 7RW600 is a numericalmultifunction protection relay for connec-tion to voltage transformers. It can be usedin distribution systems, on transformersand for electrical machines. If theSIPROTEC 7RW600 detects any deviationfrom the permitted voltage, frequency oroverexcitation values, it will respond ac-cording to the values set. The SIPROTEC7RW600 can be used for the purposes ofsystem decoupling and for load shedding ifever there is a risk of a system collapse as aresult of inadmissibly large frequencydrops. Voltage and frequency thresholdscan also be monitored.

The SIPROTEC 7RW600 voltage,frequency and overexcitation relay can beused to protect generators and transform-ers in the event of defective voltage control,of defective frequency control, or of fullload rejection, or furthermore islandinggeneration systems.

This device is intended as a supplement toSiemens substation systems and for use inindividual applications. It has two voltageinputs (V; Vx) to which a variety of func-tions have been assigned. While input Vserves all of the implemented functions,input Vx is exclusively dedicated to thevoltage protection functions. The scope offunctions can be selected from threeordering options.

Fig. 11/75 SIPROTEC 7RW600 voltage, frequency and overexcitation protection relay

LSP2

001-afpen.tif

Siemens SIP 2004


11

11/80

The SIPROTEC 7RW600 is a numericalmultifunction protection relay for connec-tion to voltage transformers. It can beused in distribution systems, on transform-ers and for electrical machines.If the SIPROTEC 7RW600 detects anydeviation from the permitted voltage,frequency or overexcitation values, it willrespond according to the values set. TheSIPROTEC 7RW600 can be used for thepurposes of system decoupling and forload shedding if ever there is a risk of asystem collapse as a result of inadmissiblylarge frequency drops. Voltage and fre-quency thresholds can also be monitored.

The SIPROTEC 7RW600 voltage,frequency and overexcitation relay can beused to protect generators and transform-ers in the event of defective voltagecontrol, of defective frequency control,or of full load rejection, or furthermoreislanding generation systems.

Fig. 11/76 Function diagram

Fig. 11/77

Application

11/80

Applications

ANSI IEC Protectionfunctions

27 V, t; V>, t Overvoltageprotection

81 81Rf>; f; +

d

d

f

t

Frequencyprotection, rate-of-frequency-change protection

24 V

f

V

f> =, ; ( )t f t Overexcitation

protection

Siemens SIP 2004


11

11/81

The SIPROTEC 7RW600 relay contains, ina compact form, all the componentsneeded for:

Acquisition and evaluation of measuredvalues

Operation and display

Output of messages, signals andcommands

Input and evaluation of binary signals

Data transmission (RS485) and

Auxiliary voltage supply.

The SIPROTEC 7RW600 receives AC volt-ages from the primary voltage transformer.The secondary rated voltage range, 100 to125 V, is adapted internally on the device.

There are two device variants available:

The first version, for panel flushmounting or cubicle mounting, has itsterminals accessible from the rear.

The second version for panel surfacemounting, has its terminals accessiblefrom the front.

Fig. 11/78Rear view of surface-mounting case

Overvoltage protection

The overvoltage protection has the func-tion of detecting inadmissible overvoltagesin power systems and electrical machinesand, in such event, it initiates systemdecoupling or shuts down the generators.

Two voltage measuring inputs (V, Vx) areprovided on the unit. These must be con-nected to two phase-to-phase voltages. Theinput voltages are processed separately intwo two-stage protective functions. Fromthese, two principle connection variantsare derived.

Fig. 11/81, Fig. 11/82, and Fig. 11/83, onpage 11/83, show the following connectionexamples:

Fig. 11/81:Separated connection, used for overvoltageprotection and earth-fault detection

Fig. 11/82:Two-phase connection to a voltagetransformer

Fig. 11/83:Alternative V connection

Undervoltage protection

The main function of the undervoltageprotection is protecting electrical machines(e.g. pumped-storage power generatorsand motors) against the consequences ofdangerous voltage drops. It separates themachines from the power system and thusavoids inadmissible operating states andthe possible risk of stability loss. This is anecessary criterion in system decoupling.

To ensure that the protection functions ina physically correct manner, when used inconjunction with electrical machines, thepositive-sequence system must be evalu-ated.

The protection function can be blocked,via a binary input, causing a drop in ener-gizing power. The auxiliary contact of thecircuit-breaker can be used for this pur-pose with the circuit-breaker open. Alter-natively, undervoltage acquisition can beactivated on a conductor-separated basis(V

Siemens SIP 2004


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11/82

Protection functions


The overexcitation protection detects andrecords any inadmissibly high induction

( ~ )BV

f

in electrical equipment, e.g. generators ortransformers, that may occur as a result ofa voltage increase and/or frequency drop.Increased induction of this nature maylead to saturation of the iron core, exces-sive eddy current losses, and thus to inad-missible heating.

It is recommended to use the overexcita-tion protection function in power systemssubject to large frequency fluctuations(e.g. systems in island configuration orwith weak infeed) and for electrical blockunits that are separated from the system.

The overexcitation protection functioncalculates, from the maximum voltage (V,Vx) and the frequency, the ratio V/f. Thisfunction incorporates an independentwarning and tripping stage and a curvewhich is dependent on and adaptable tothe object to be protected and which takesdue account of the objects thermal behav-ior. Incorrect adaptation of the voltagetransformer is also corrected. The over-excitation protection function is effectiveover a broad frequency range (25 to 70 Hz)and voltage range (10 to 170 V).

Fig. 11/79 Tripping range of overexcitation protection

Features

Fig. 11/80 Wiring communication

Serial data transmission

The SIPROTEC 7RW600 relay is fittedwith an RS485 port, via which a PC canbe connected, thus providing, in con-junction with the DIGSI operating andanalysis program, a convenient tool forconfiguring and parameter setting. TheDIGSI program (which runs underMS-Windows) also performs fault re-cording and fault evaluation. TheSIPROTEC 7RW600 relay can also belinked, via the appropriate converters,either directly or over an optoelectronicconnection (optical fiber) to the interfaceof the PC or substation control system(IEC 60870-5-103 protocol).

Siemens SIP 2004


11

11/83

Connection diagrams

Fig. 11/84Communication port

Fig. 11/85Typical auxiliary voltage wiring

Fig. 11/81Connection of a phase-to-phase voltage Vand a displacement voltage Vx

Fig. 11/82Connection of two phase-to-phase voltages Vto one voltage transformer set

Fig. 11/83Connection to voltage transformers in V-configuration

Siemens SIP 2004


11

11/84

Technical data

Hardware

Measuring circuits (v.t. circuits)

Rated voltage VN 100 to 125 V

Rated frequency fN 50 or 60 Hz

Dynamic range 170 V

Power consumption 0.2 VA

Thermal overload capacity,continuousfor 10 s

200 V230 V

Power supply via integratedDC/DC converter

Rated auxiliary voltage Vaux 24/48 V DC60/110/125 V DC220/250 V DC, 115 V AC

Maximum ripple at rated voltage 12 %

Power consumptionQuiescentEnergized

Approx. 2 WApprox. 4 W

Maximum bridging timefollowing failure of auxiliary voltage

20 ms at VAUX (24 V DC) 50 ms at VAUX (110 V DC)

Binary inputs

Number 3

Voltage range 24 to 250 V DC

Current consumption, independentof operating voltage

Approx. 2.5 mA

2 switching thresholds (adjustable) 17 V, 75 V

Command contacts

Number of relays, totalNumber of relayswith 2-channel energization

6

2

Contacts per relay (K1 to K5)Contact for relay (K6)

1 NO contact1 NC contact or 1 NO contact(set via jumper)

Switching capacityMakeBreak

1000 W/VA30 W/VA

Switching voltage 250 V (AC/DC)

Permissible current,continuous0.5 s

5 A30 A

LEDs

Ready-to-operate (green) 1

Marshallable displays (red) 4

Fault indication (red) 1

Serial port (isolated)

Type RS485

Test voltage 2 kV AC for 1 min

Connections Data cable at housing, two datawires, one frame reference for con-nection of a PC or similar

Transmission speed At least 1200 baud, max. 19200 baud

Unit design

Case 7XP20 For dimensions, see dimensiondrawings, part 16

WeightFlush mounting/cubicle mountingSurface mounting

Approx. 4 kgApprox. 4.5 kg

Degree of protectionto IEC 60529/EN 60529

IP 51

Electrical test

Specifications

Standards IEC 60255-5, ANSI / IEEE C37.90.0

Insulation tests

Voltage test (routine test)All circuits except auxiliaryvoltage and RS485Auxiliary voltage and RS485 only

2.0 kV (rms), 50 Hz

2.8 kV DC

Voltage test (type test)Over open command contacts 1.5 kV (rms), 50 Hz

Impulse withstand capability(SWC) test (type test)

All circuits, class III

5 kV (peak); 1.2 / 50 s; 0.5 J

3 positive and 3 negative impulsesat intervals of 5 s

Test crosswise:Measurement circuits, pilot-wireconnections, power supply, binaryinputs, class III, (no tests crosswiseover open contacts, RS485 interfaceterminals)

EMC tests, immunity; type tests

Standards IEC 60255-22 (product standard)EN 50082-2 (generic standard)DIN VDE 0435, Part 303

High-frequency testIEC 60255-22-1, class IIIand DIN VDE 0435 Part 303, class III

2.5 kV (peak), 1 MHz, = 15 s,400 shots/s duration 2 s

Electrostatic dischargeIEC 60255-22-2, class IIIand IEC 61000-4-2, class III

4 kV/6 kV contact discharge,8 kV air discharge, both polarities,150 pF, Ri = 330

Irradiation with RF fieldNon-modulated, IEC 60255-22-3(report), class IIIAmplitude-modulated,IEC 61000-4-3, class IIIPulse-modulated,IEC 6100-4-3, class III

10 V/m, 27 to 500 MHz

10 V/m, 80 to 1000 MHz,80 % AM, 1 kHz10 V/m, 900 MHz, repetitionfrequency 200 Hz, duty cycle 50 %

Siemens SIP 2004


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11/85

Technical data

EMC tests, immunity; type tests

Fast transientsIEC 60255-22-4 and IEC 61000-4-4,class III

2 kV, 5/50 ns, 5 kHz, burst length15 ms, repetition rate 300 ms, bothpolarities, Ri = 50, duration 1 min

Conducted disturbances induced byradio-frequency fields, amplitude-modulated, IEC 61000-4-6, class III

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

Power frequency magnetic fieldIEC 61000-4-8, class IV

30 A/m continuous, 50 Hz300 A/m for 3 s, 50 Hz0.5 mT; 50 Hz

Oscillatory surge withstandcapability ANSI/IEEE C37.90.1(common mode)

2.5 kV to 3 kV (peak),1 MHz to 1.5 MHz, decayingoscillation, 50 shots per s, duration 2s, Ri = 150 to 200

Fast transient surge withstandcapability ANSI/IEEE C37.90.1(common mode)

4 to 5 kV, 10/150 ns, 50 shots per s,both polarities, duration 2 s, Ri = 80

Radiated electromagneticinterference ANSI/IEEE C37.90.2

10 to 20 V/m, 25 to 1000 MHz,amplitude- and pulse-modulated

High-frequency testDocument 17C (SEC) 102

2.5 kV (peak, alternating polarity),100, 1, 10 and 50 MHz,decaying oscillation, Ri = 50

EMC tests, emission; type tests

Standard EN 50081-* (generic standard)

Conducted interference voltage,aux. voltage only CISPR 11,EN 55022, DIN VDE 0878 Part 22,limit value, class B

150 kHz to 30 MHz

Interference field strength CISPR 11,EN 55011, DIN VDE 0875 Part 11,limit value, class A

30 to 1000 MHz

Mechanical stress tests

Vibration, shock stress and seismic vibration

During operation

Standards IEC 60255-21 and IEC 60068-2

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

Sinusoidal10 to 60 Hz: 0.035 mm amplitude60 to 150 Hz: 0.5 g accelerationSweep rate 1 octave/min20 cycles in 3 orthogonal axes

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

Half-sinusoidalacceleration 5 g, duration 11 ms3 shocks in each direction of3 orthogonal axes

Seismic vibrationIEC 60255-21-3, class 1

IEC 60068-2-59

Sinusoidal1 to 8 Hz: 4 mm amplitude(horizontal axis)1 to 8 Hz: 2 mm amplitude(vertical axis)8 to 35 Hz: 1 g acceleration(horizontal axis)8 to 35 Hz: 0.5 g acceleration(vertical axis)Sweep rate 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 accelerationSweep rate 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 in each direction of 3orthogonal axes

Continuous shockIEC 60255-21-2, class 1IEC 60068-2-29

Half-sinusoidalacceleration 10 g, duration 16 ms,1000 shocks in each directionof 3 orthogonal axes

Climatic stress tests

Temperatures

Recommended temperature duringservice

5 to +55 C(legibility may be impaired> +55 C)

Temperature tolerances:During serviceDuring storageDuring transport(storage and transport instandard works packaging)

20 to +70 C25 to +55 C25 to +70 C

Humidity

Permissible humidity stressIt is recommended to arrange theunits in such a way that they are notexposed to direct sunlight or pro-nounced temperature changes thatcould cause condensation

Annual average 75 % relative hu-midity, on 30 days during the year 95% relative humidity, condensationnot permitted!

Functions

Undervoltage protection

Setting range V>Vx>, Vx>>

20 to 170 V (in steps of 1 V)10 to 170 V (in steps of 1 V)

Delay times 0 to 60 s or (in steps of 0.01 s)

Pickup timeReset timeReset ratio

50 ms 50 ms0.95

TolerancesVoltage pickup

Delay times

3 % of setting value or 1 V< 1 % of setting value for V > Vn1 % of setting value or 10 ms

Siemens SIP 2004


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11/86

Technical data


Number of frequency stages f> or f< 4

Setting range f> or f< 40 to 68 Hz (in steps of 0.01 Hz)

Delay times 0 to 60 s or (in steps of 0.01 s)

Undervoltage blocking 20 to 100 V or (in steps of 1 V)

Pickup time f>, f, f, f

siemens relay 7rw600

Documents

siprotec units

relays cdrom siprotec

printed siprotec catalog

n distance protection

overfluxing vf protection

locked rotor protection

available features

bay control units