3ah47 vacuum circuit-breakers for traction applications

3AH47 Vacuum Circuit-Breakers

for Traction Applications

Medium-Voltage EquipmentSelection and Ordering Data

Catalog HG 11.52 · 2010

Answers for energy.

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3AH47 VacuumCircuit-Breakers

Medium-Voltage EquipmentCatalog HG 11.52 · 2010

Invalid:Catalog HG 11.52 · 2007Catalog HG 11.52 · 2008 (PDF version only)

Contents Page

DescriptionGeneral

Construction and mode of operation, standards

Ambient conditions, current carrying capacityand dielectric strength

Product range overview and basic equipment

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Equipment SelectionOrdering data and configuration example

Selection of basic types, circuit-breakers(single-pole or two-pole)

Selection of secondary equipment

Selection of additional equipment

Accessories and spare parts

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Technical DataElectrical data, dimensions and weights

Circuit diagrams

Operating times, short-circuit protection ofmotors, consumption data of releases

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AnnexInquiry form

Configuration instructions

Configuration aid

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Contents

Foldout page

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3AH47 Vacuum Circuit-Breakers DescriptionContents

Contents Page

Description

General

Construction and mode of operation:

Switching medium

Pole assembly

Operating mechanism box

Operating mechanism

Trip-free mechanism

Releases

Closing

Circuit-breaker tripping signal

Interlocking

Standards

Ambient conditions

Current carrying capacity

Dielectric strength

Product range overview

Basic equipment

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Railway control center

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3AH47 – impressive with one or two poles

3AH47 circuit-breaker – The Specialfor railway electrification applications at 17.5 kV and 27.5 kV

DescriptionGeneral

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The electrical power supply for railway systems requirescircuit-breakers with special features. Not only are theresingle-pole circuit-breakers in normal operation, but also

the high requirements regarding operational reliabilityand number of operating cycles reach far beyond thestandards of other applications.

The vacuum circuit-breaker series 3AH47 offers – both for162/3 Hz at a rated voltage of 17.5 kV and for 50/60 Hz ata rated voltage of 27.5 kV – an impressive product rangewith rated normal currents up to 2500 A and rated short-circuit breaking currents from 25 kA to 31.5 kA, and evenup to 50 kA at 17.5 kV.

3AH47 vacuum circuit-breakers control up to 60,000operating cycles. Minimum maintenance work, such asgreasing of operating mechanisms after 10,000 operatingcycles and replacement of vacuum interrupters after30,000 operating cycles, preserves the reliability of thesecircuit-breakers throughout their entire service life.

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The 3AH47 vacuum circuit-breaker consists of the poleassembly (1) and the operating mechanism box (2). The poleassembly is fixed to the operating mechanism box via postinsulators (3). The switching movement is transferred bymeans of operating rods (4) and levers.

Switching medium

The vacuum switching technology, proven and fullydeveloped for more than 30 years, serves as arc-quenchingprinciple by using vacuum interrupters.

Pole assembly

A pole assembly consists of the vacuum interrupter (6) andthe interrupter supports. The vacuum interrupter is air-insulated and freely accessible. This makes it possible to cleanthe insulating parts easily in adverse ambient conditions.The vacuum interrupter is mounted rigidly to the upperinterrupter support (5). The lower part of the interrupter isguided in the lower interrupter support (7), allowing axialmovement. The braces absorb the external forces resultingfrom switching operations and the contact pressure.

Operating mechanism box

The whole operating mechanism with releases, auxiliaryswitches, indicators and actuating devices is accommodatedin the operating mechanism box. The extent of thesecondary equipment depends on the case of applicationand offers a multiple variety of options in order to meetalmost every requirement.

Operating mechanism

The operating mechanism is a stored-energy mechanism.The closing spring is charged either electrically or manually.It latches tight at the end of the charging process and servesas an energy store. The force is transmitted from the operatingmechanism to the pole assembly via operating rods.

To close the breaker, the closing spring can be unlatchedeither mechanically by means of the local “ON” pushbuttonor electrically by remote control. The closing spring chargesthe opening or contact pressure springs as the breakercloses. The now discharged closing spring will be chargedagain automatically by the mechanism motor or manually.Then the operating sequence OPEN-CLOSE-OPEN is stored inthe springs. The charging state of the closing spring can bechecked electrically by means of a position switch.

Trip-free mechanism

3AH47 vacuum circuit-breakers have a trip-free mechanismaccording to IEC 62271-100. In the event of an openingcommand being given after a closing operation has beeninitiated, the moving contacts return to the open positionand remain there even if the closing command is sustained.This means that the contacts of the vacuum circuit-breakersare momentarily in the closed position, which is permissibleaccording to IEC 62271-100.

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DescriptionConstruction and mode of operation

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1 Pole assembly

2 Operatingmechanism box

3 Post insulator

4 Operating rod

5 Upper interrupter support

6 Vacuum interrupter

7 Lower interrupter support

Structure of the traction circuit-breaker

Front view of the single-pole circuit-breaker

Open operating mechanism box ofthe two-pole circuit-breaker

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Releases

A release is a device which transfers electrical commandsfrom an external source, such as a control room, to thelatching mechanism of the vacuum circuit-breaker so that itcan be opened or closed. How many releases are used andhow they are combined is defined when the secondaryequipment is selected.

• The closing solenoid unlatches the charged closing springof the vacuum circuit-breaker, closing it by electrical means.

• Shunt releases are used for tripping the circuit-breakersvia protection relay and for manual tripping via electricaloperation. For this purpose they are operated with anauxiliary voltage (AC or DC) supplied by the protection relayor the control room.

• Instantaneous releases are used for switching duties withextremely short breaking times, especially for applications in162/3 Hz systems, in order to keep the arcing time short. Foroperation of the instantaneous release, a capacitor trippingunit is required additionally.

• Undervoltage releases comprise a stored-energy mechanism,an unlatching mechanism and an electromagnetic system,which is permanently connected to voltage while thevacuum circuit-breaker is closed.

If the voltage falls below a predetermined value, unlatchingof the release is enabled and the circuit-breaker is openedvia the stored-energy mechanism.

Closing

In the standard version, the 3AH47 vacuum circuit-breakerscan be remote-closed electrically. They can also be closedlocally by mechanical unlatching of the closing spring viapushbutton.

Instead of this “manual mechanical closing”, “manualelectrical closing” is also available. In this version, the closingcircuit of the circuit-breaker is controlled electrically by apushbutton instead of the mechanical button. In this way,switchgear-related interlocks can also be considered for localoperation in order to prevent involuntary closing.

If constant CLOSE and OPEN commands are present at thevacuum circuit-breaker at the same time, the vacuumcircuit-breaker will return to the open position after closing.It remains in this position until a new CLOSE command isgiven. In this manner, continuous closing and opening(=“pumping”) is prevented.

Circuit-breaker tripping signal

The NO contact makes brief contact while the vacuumcircuit-breaker is opening, and this is often used to operatea hazard-warning system which, however, is only allowedto respond to automatic tripping of the vacuum circuit-breaker. Therefore, the signal from the NO contact mustbe interrupted when the circuit-breaker is being openedintentionally. This is accomplished under local control withthe cut-out switch that is connected in series with the NOcontact.

Interlocking

Mechanical interlocking

The switch position of the circuit-breaker is checked from theswitchgear side, and its closing is blocked if the associateddisconnector is in faulty position. On the other hand, dis-connector operation is prevented while the circuit-breaker isclosed. Accordingly, the mechanical interlocking can also beused to interlock against circuit-breaker trucks or withdrawableparts.

Electrical interlocking

The vacuum circuit-breakers can be integrated in electro-magnetic feeder or switchgear interlocks. In case of electricalinterlocking, the disconnector or its operating mechanism isequipped with a magnetic lock-out mechanism. Thismechanism is controlled by an auxiliary contact of thecircuit-breaker, so that the disconnector can only beoperated when the circuit-breaker is open. On the otherhand, the circuit-breaker is also controlled by thedisconnector or its operating mechanism, so that it can onlybe closed when the disconnector is in an end position. Forthis purpose, manual electrical closing must be provided inthe circuit-breaker operating mechanism (see “Closing”).

Standards

3AH47 vacuum circuit-breakers conform to the followingstandards:

• EN 50152-1• IEC 62271-100 (former IEC 60056)• IEC 62271-1 (former IEC 60694)• BS 5311• VDE 0671 (former VDE 0670)

All 3AH47 vacuum circuit-breakers fulfill the enduranceclasses E2 and C2 according to IEC 62271-100, and surpassthe endurance class M2 six times (60,000 operating cycles).

DescriptionConstruction and mode of operation, standards

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Ambient conditions

The vacuum circuit-breakers are designed for the normaloperating conditions defined in IEC 62271-100.

Condensation can occasionally occur under the ambientconditions shown opposite. 3AH47 vacuum circuit-breakers are suitable for use in the following climatic classesaccording to IEC 60721, Part 3-3:

Climatic ambient conditions: Class 3K4 1)

Biological ambient conditions: Class 3B1Mechanical ambient conditions: Class 3M2Chemically-active substances: Class 3C2 2)

Mechanically-active substances: Class 3S2 3)

1) Low temperature limit: – 5 °C2) Without icing and wind-driven precipitation3) Restriction: Clean insulation parts

Current carrying capacity

The rated normal currents specified in the opposite diagramhave been defined according to IEC 62271-100 for an am-bient air temperature of + 40 °C and apply to open switch-gear. For enclosed switchgear the data of the switchgearmanufacturer applies. At ambient air temperatures below+ 40 °C, higher normal currents can be carried (see diagram):

Characteristics curve 1 = Rated normal current 1250 ACharacteristics curve 2 = Rated normal current 2000 ACharacteristics curve 3 = Rated normal current 2500 A

Dielectric strength

The dielectric strength of air insulation decreases withincreasing altitude due to low air density. According toIEC 62271-1, the values of the rated lightning impulsewithstand voltage and the rated short-duration power-frequency withstand voltage specified in the chapter“Technical Data” apply to a site altitude of 1000 m abovesea level. For an altitude above 1000 m, the insulation levelmust be corrected according to the opposite diagram.

The characteristic shown applies to both rated withstandvoltages.

To select the devices, the following applies:

U W U0 x Ka

U Rated withstand voltage under reference atmosphereU0 Rated withstand voltage requested for the place of installationKa Altitude correction factor according to the opposite diagram

Example

For a requested rated lightning impulse withstand voltageof 75 kV at an altitude of 2500 m, an insulation level of90 kV under reference atmosphere is required as a minimum:

90 kV W 75 kV x 1.2

DescriptionAmbient conditions, current carrying capacity and dielectric strength

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Product range overview

Ratedvoltage

Rated short-circuit break-ing current

Rated normal current (A)

1250 2000 2500

kV kA Single-pole Two-pole Single-pole Two-pole Single-pole Two-pole

17.5 25 �

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27.5 25 � � � � �

31.5 � � � � � �

� Circuit-breaker for 162/3 Hz � Circuit-breaker for 50/60 Hz

Basic equipment

Features Minimum equipment Alternative equipment Remarks

Operating mechanism Electrical operatingmechanism

Manual operating mechanism(hand crank included in the scope of supply)

Hand crankalso available as accessory

Closing Closing solenoid andmanual mechanical closing

Manual electrical closing –

1st release Shunt release None –

2nd release Without Shunt release,undervoltage release,instantaneous release

When an instantaneousrelease is used, a capacitortripping unit is required

3rd release Without Undervoltage release Cannot be combined withan instantaneous release

Varistor circuit Installed for W 60 V DC None For limiting switching overvoltagesdue to inductive loads

Auxiliary switch 6 NO + 6 NC 12 NO + 12 NC –

Plug connector 24-pole terminal strip 24-pole plug,64-pole plug

–

Anti-pumping Available None –

Circuit-breakertripping signal

Available None –

Operations counter Available None –

Interlocking Without Mechanical interlocking –

DescriptionProduct range overview and basic equipment

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Contents Page

Equipment Selection

Ordering data and configuration example

Selection of basic types, circuit-breakers(single-pole or two-pole):

Voltage level 17.5 kV; 162/3 Hz

Voltage level 27.5 kV; 50/60 Hz

Selection of secondary equipment:

Release combination

Operating voltage, closing solenoid

Operating voltage, 1st shunt release

Operating voltage, 2nd release

Operating voltage, 3rd release

Operating voltage of the operating mechanism

Auxiliary switch, secondary connection, interlocking

Languages and frequency

Selection of additional equipment

Accessories and spare parts

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Equipment SelectionContents

3AH47 vacuum circuit-breaker, two-pole

3AH47 vacuum circuit-breaker, single-pole

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3AH47 Vacuum Circuit-BreakersEquipment SelectionOrdering data and configuration example

Order number structureThe 3AH47 vacuum circuit-breakers consist of a primary anda secondary part. The relevant data make up the 16-digitorder number. The primary part covers the main electricaldata of the circuit-breaker poles. The secondary part coversthe auxiliary devices which are necessary for operating andcontrolling the vacuum circuit-breaker.

Order codes

Individual equipment versions, marked with 9 or Z in the9th or 16th position, are explained more in detail by a 3-digitorder code. Several order codes can be added to the ordernumber in succession and in any sequence.

Special versions (�)

In case of special versions, “-Z” is added to the order numberand a descriptive order code follows. If several special versionsare required, the suffix “-Z” is listed only once. If a requestedspecial version is not in the catalog and can therefore not beordered via order code, it has to be identified with Y 9 9 afterconsultation. The agreement hereto is made directly betweenyour responsible sales partner and the order processing de-partment in the Switchgear Factory Berlin.

Configuration example

In order to simplify the selection of the correct order numberfor the requested circuit-breaker type, you will find a con-figuration example on each page of the chapter “EquipmentSelection”. For the selection of the secondary part, alwaysthe last example of the primary part was taken over andcontinued, so that at the end of the equipment selection(page 22) a completely configured circuit-breaker resultsas an example.

On the foldout page we offer a configuring aid.Here you can fill in the order number you have deter-mined for your circuit-breaker.

a: alphabetical n: numerical

Position: 1 2 3 4 5 6 7 – 8 9 10 11 12 – 13 14 15 16 Order codes

Order No.: 3 A H 4 7 n n – n a a n n – n a a n – � � � �

Primary part1st position Superior group

Switching devices

2nd position Main groupCircuit-breaker

3rd position SubgroupCircuit-breaker type series

4th to 8th position Basic equipmentDesign and ratingsprimary part

Secondary part9th to 16th position Secondary equipment

Operating mechanism, releases, operatingvoltages and further auxiliary equipment

Order codesGroup of 3 after the Order No.Format: a n a

Special versions (�)Initiated with “-Z”Group of 3 after the Order No.Format: a n n

Example for Order No.: 3 A H 4 7 5 5 – 4 � � � � – � � � �

Order codes:


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17.5 kV Position: 1 2 3 4 5 6 7 – 8 9 10 11 12 – 13 14 15 16 Order codes

162/3 Hz Order No.: 3 A H 4 7 � � – � � � � � – � � � � – � � � �

Ur Up Ud Isc Ima Ir

kV kV kV kA kA A

17.5 125 50 25 63 2000 1 3 A H 4 7 5 4 – 431.5 80 2000 1 3 A H 4 7 5 5 – 440 100 2500 1 3 A H 4 7 6 6 – 650 125 2500 1 3 A H 4 7 5 7 – 6

170 70 40 100 2500 1 3 A H 4 7 5 6 – 6 – Z D 6 5

27.5 kV50/60 Hz, single-pole

Ur Up Ud Isc Ima Ir

kV kV kV kA kA A

27.5 185 85 25 63 1250 1 3 A H 4 7 8 4 – 22000 1 3 A H 4 7 8 4 – 42500 1 3 A H 4 7 8 4 – 6

31.5 80 1250 1 3 A H 4 7 8 5 – 22500 1 3 A H 4 7 8 5 – 6

200 95 25 63 1250 1 3 A H 4 7 8 4 – 2 – Z E 2 62000 1 3 A H 4 7 8 4 – 4 – Z E 2 6

31.5 80 1250 1 3 A H 4 7 8 5 – 2 – Z E 2 62000 1 3 A H 4 7 8 5 – 4 – Z E 2 62500 1 3 A H 4 7 8 5 – 6 – Z E 2 6

250 105 25 63 1250 1 3 A H 4 7 9 4 – 22000 1 3 A H 4 7 9 4 – 4

27.5 kV50/60 Hz, two-pole

Ur Up Ud Isc Ima Ir

kV kV kV kA kA A

27.5 185 85 25 63 1250 2 3 A H 4 7 8 4 – 2 – Z D 3 131.5 80 1250 2 3 A H 4 7 8 5 – 2 – Z D 3 1

2500 2 3 A H 4 7 8 5 – 6 – Z D 3 1200 95 25 63 2000 2 3 A H 4 7 8 4 – 4 – Z D 3 1

+ E 2 731.5 80 2500 2 3 A H 4 7 8 5 – 6 – Z D 3 1

+ E 2 7


3AH47 vacuum circuit-breaker, single-pole 3 A H 4 7

Rated voltage Ur = 17.5 kV, 162/3 Hz

Rated lightning impulse withstand voltage Up = 125 kV

Rated short-circuit breaking current Isc = 40 kA

Rated normal current Ir = 2500 A 5 6 – 6

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Equipment SelectionSelection of basic types, circuit-breakers


Example for Order No.: 3 A H 4 7 5 6 – 6 � � � � – � � � �

Order codes:

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3AH47 Vacuum Circuit-BreakersEquipment SelectionSelection of secondary equipment

9th position Position: 1 2 3 4 5 6 7 – 8 9 10 11 12 – 13 14 15 16 Order codes

Release combination Order No.: 3 A H 4 7 � � – � � � � � – � � � � – � � � �

� � M� � � N� � � � T� � � R� � � Y



(Ur = 17.5 kV, 162/3 Hz, Up = 125 kV, Isc = 40 kA, Ir = 2500 A) 5 6 – 6

Closing solenoid, 1st shunt release, instantaneous release Y

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Example for Order No.: 3 A H 4 7 5 6 – 6 Y � � � – � � � �

Order codes:

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3AH47 Vacuum Circuit-Breakers Equipment SelectionSelection of secondary equipment


Operating voltage of the closing solenoid Order No.: 3 A H 4 7 � � – � � � � � – � � � � – � � � �

Mechanical closing at the circuit-breaker

24 V DC B48 V DC C60 V DC D110 V DC E220 V DC F100 V AC 50/60 Hz 1) H110 V AC 50/60 Hz 1) J230 V AC 50/60 Hz 1) K

30 V DC Z With order code K 1 A32 V DC Z With order code K 1 B120 V DC Z With order code K 1 C125 V DC Z With order code K 1 D127 V DC Z With order code K 1 E240 V DC Z With order code K 1 F120 V AC 50/60 Hz 1) Z With order code K 1 K125 V AC 50/60 Hz 1) Z With order code K 1 L240 V AC 50/60 Hz 1) Z With order code K 1 M

Manual electrical closing at the circuit-breaker

24 V DC M48 V DC N60 V DC P110 V DC Q220 V DC R100 V AC 50/60 Hz 1) T110 V AC 50/60 Hz 1) U230 V AC 50/60 Hz 1) V

30 V DC Z With order code K 2 A32 V DC Z With order code K 2 B120 V DC Z With order code K 2 C125 V DC Z With order code K 2 D127 V DC Z With order code K 2 E240 V DC Z With order code K 2 F120 V AC 50/60 Hz 1) Z With order code K 2 K125 V AC 50/60 Hz 1) Z With order code K 2 L240 V AC 50/60 Hz 1) Z With order code K 2 M

1) The AC frequency 50 or 60 Hz is selected at the 16th position of theorder number together with the language (see page 21)



(Ur = 17.5 kV, 162/3 Hz, Up = 125 kV, Isc = 40 kA, Ir = 2500 A) 5 6 – 6 Y

Manual electrical closing at the circuit-breaker,

operating voltage of the closing solenoid 32 V DC Z K 2 B

Standard voltages Special voltages

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Example for Order No.: 3 A H 4 7 5 6 – 6 Y Z � � – � � � �

Order codes: K 2 B

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3AH47 Vacuum Circuit-BreakersEquipment SelectionSelection of secondary equipment


Operating voltage of the 1st shunt release Order No.: 3 A H 4 7 � � – � � � � � – � � � � – � � � �

24 V DC 148 V DC 260 V DC 3110 V DC 4220 V DC 5100 V AC 50/60 Hz 1) 6110 V AC 50/60 Hz 1) 7230 V AC 50/60 Hz 1) 8

30 V DC 9 With order code L 1 A32 V DC 9 With order code L 1 B120 V DC 9 With order code L 1 C125 V DC 9 With order code L 1 D127 V DC 9 With order code L 1 E240 V DC 9 With order code L 1 F120 V AC 50/60 Hz 1) 9 With order code L 1 K125 V AC 50/60 Hz 1) 9 With order code L 1 L240 V AC 50/60 Hz 1) 9 With order code L 1 M




(Ur = 17.5 kV, 162/3 Hz, Up = 125 kV, Isc = 40 kA, Ir = 2500 A) 5 6 – 6 Y Z

Operating voltage of the 1st shunt release 48 V DC 2


Example for Order No.: 3 A H 4 7 5 6 – 6 Y Z 2 � – � � � �

Order codes: K 2 B

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Operating voltage of the 2nd release Order No.: 3 A H 4 7 � � – � � � � � – � � � � – � � � �

Shunt release, undervoltage release or instantaneous release 2)

Without 2nd release 024 V DC 148 V DC 260 V DC 3110 V DC 4220 V DC 5100 V AC 50/60 Hz 1) 6110 V AC 50/60 Hz 1) 7230 V AC 50/60 Hz 1) 8

30 V DC 9 With order code M 1 A

32 V DC 9 With order code M 1 B

120 V DC 9 With order code M 1 C

125 V DC 9 With order code M 1 D

127 V DC 9 With order code M 1 E

240 V DC 9 With order code M 1 F

120 V AC 50/60 Hz 1) 9 With order code M 1 K

125 V AC 50/60 Hz 1) 9 With order code M 1 L

240 V AC 50/60 Hz 1) 9 With order code M 1 M


2) 60 V DC, 110 V DC and 220 V DC



(Ur = 17.5 kV, 162/3 Hz, Up = 125 kV, Isc = 40 kA, Ir = 2500 A) 5 6 – 6 Y Z


2nd release as instantaneous release with operating voltage 60 V DC 3

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Example for Order No.: 3 A H 4 7 5 6 – 6 Y Z 2 3 – � � � �

Order codes: K 2 B

Equipment SelectionSelection of secondary equipment

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Operating voltage of the 3rd release Order No.: 3 A H 4 7 � � – � � � � � – � � � � – � � � �

Undervoltage release

Without 3rd release 024 V DC 148 V DC 260 V DC 3110 V DC 4220 V DC 5100 V AC 50/60 Hz 1) 6110 V AC 50/60 Hz 1) 7230 V AC 50/60 Hz 1) 8

30 V DC 9 With order code N 1 A32 V DC 9 With order code N 1 B120 V DC 9 With order code N 1 C125 V DC 9 With order code N 1 D127 V DC 9 With order code N 1 E240 V DC 9 With order code N 1 F120 V AC 50/60 Hz 1) 9 With order code N 1 K125 V AC 50/60 Hz 1) 9 With order code N 1 L240 V AC 50/60 Hz 1) 9 With order code N 1 M




(Ur = 17.5 kV, 162/3 Hz, Up = 125 kV, Isc = 40 kA, Ir = 2500 A) 5 6 – 6 Y Z 2 3

Without 3rd release – 0


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Example for Order No.: 3 A H 4 7 5 6 – 6 Y Z 2 3 – 0 � � �

Order codes: K 2 B


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Operating voltage of the operating mechanism Order No.: 3 A H 4 7 � � – � � � � � – � � � � – � � � �

Manual operating mechanism(hand crank included in the scope of supply) A24 V DC B48 V DC C60 V DC D110 V DC E220 V DC F100 V AC 50/60 Hz 1) H110 V AC 50/60 Hz 1) J230 V AC 50/60 Hz 1) K

30 V DC Z With order code P 1 A32 V DC Z With order code P 1 B120 V DC Z With order code P 1 C125 V DC Z With order code P 1 D127 V DC Z With order code P 1 E240 V DC Z With order code P 1 F120 V AC 50/60 Hz 1) Z With order code P 1 K125 V AC 50/60 Hz 1) Z With order code P 1 L240 V AC 50/60 Hz 1) Z With order code P 1 M




(Ur = 17.5 kV, 162/3 Hz, Up = 125 kV, Isc = 40 kA, Ir = 2500 A) 5 6 – 6 Y Z 2 3 – 0

Operating voltage of the operating mechanism 48 V DC C


Example for Order No.: 3 A H 4 7 5 6 – 6 Y Z 2 3 – 0 C � �

Order codes: K 2 B

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20 Siemens HG 11.52 · 2010



Auxiliary switch, secondary connection, interlocking Order No.: 3 A H 4 7 � � – � � � � � – � � � � – � � � �

� � A� � E� � G

� � C� � M

� � � B� � � F� � � H� � � D� � � N

Special versionAuxiliary switch 12 NO + 12 NC and 24-pole plug (E or F) – Z A 2 6Special versions gold-plated contacts and pins

Auxiliary switch 6 NO + 6 NC and 24-pole terminal strip (G or H) – Z A 1 7Auxiliary switch 12 NO + 12 NC and 24-pole terminal strip (M or N) – Z A 1 8Auxiliary switch 6 NO + 6 NC and 64-pole plug (A or B) – Z A 2 0

Auxiliary switch 12 NO + 12 NC and 64-pole plug (C or D) – Z A 2 1

1) Depending on the equipment, some connections of the 64-pole plugconnector remain free. These can be connected to free auxiliary switchcontacts by the customer. Prefabricated wires are available as accessories.

2) Auxiliary switch contacts are not wired to the plug/terminal strip and musttherefore be connected directly.

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24-p

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inal

strip

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See

page

21

See

page

22



(Ur = 17.5 kV, 162/3 Hz, Up = 125 kV, Isc = 40 kA, Ir = 2500 A) 5 6 – 6 Y Z 2 3 – 0 C

Auxiliary switch 6 NO + 6 NC, 64-pole plug, without mechanical interlocking A

Example for Order No.: 3 A H 4 7 5 6 – 6 Y Z 2 3 – 0 C A

Order codes: K 2 B


16th position Position: 1 2 3 4 5 6 7 – 8 9 10 11 12 – 13 14 15 16 Ordercodes

AC frequency of operating voltages Order No.: 3 A H 4 7 � � – � � � � � – � � � � – � � � �

Languages of operating instructions and rating plate

� � � � 0� � � 1

� � � � 2� � � 3

� � � � 4� � � 5

� � � � 6� � � 7

Other languages on request

Special versionsAdditional information on the rating plate (only after consultationwith the order processing department at the Switchgear Factory Berlin).Information in clear text. – Z Y 1 2



(Ur = 17.5 kV, 162/3 Hz, Up = 125 kV, Isc = 40 kA, Ir = 2500 A) 5 6 – 6 Y Z 2 3 – 0 C


Frequency 50 Hz or DC, operating instructions and rating plate in English 2

2

21Siemens HG 11.52 · 2010


See

page

22


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Language selection Frequency selection

Example for Order No.: 3 A H 4 7 5 6 – 6 Y Z 2 3 – 0 C A 2

Order codes: K 2 B

2

22 Siemens HG 11.52 · 2010


Additional equipment Position: 1 2 3 4 5 6 7 – 8 9 10 11 12 – 13 14 15 16 Order codes

Order No.: 3 A H 4 7 � � – � � � � � – � � � � – � � � �

Wiring cables, halogen-free and flame-retardant – Z A 1 0Condensation protection, heating for 230 V AC, 50 W – Z A 3 0Additional rating plate, loose delivery – Z B 0 0Routine test certificate enclosed – Z F 2 0Hand crank (also for motor operating mechanism)for manual charging of the closing spring – Z F 3 0Further, non-listed special versions (only after consultation withthe order processing department at the Switchgear Factory Berlin).Information in clear text. – Z Y 9 9

Configuration example3AH47 vacuum circuit-breaker, single-pole 3 A H 4 7Rated voltage Ur = 17.5 kV, 162/3 HzRated lightning impulse withstand voltage Up = 125 kVRated short-circuit breaking current Isc = 40 kARated normal current Ir = 2500 A 5 6 – 6Closing solenoid, 1st shunt release, instantaneous release YManual electrical closing at the circuit-breaker, operating voltage

of the closing solenoid 32 V DC Z K 2 B


2nd release as instantaneous release with operating voltage 60 V DC 3

Without 3rd release – 0

Operating voltage of the operating mechanism 48 V DC C


Frequency 50 Hz or DC, operating instructions and rating plate in English 2

Routine test certificate enclosed – Z F 2 0

Options

Example for Order No.: 3 A H 4 7 5 6 – 6 Y Z 2 3 – 0 C A 2 – Z

Order codes: K 2 B + F 2 0

Equipment SelectionSelection of additional equipment

2

23Siemens HG 11.52 · 2010

3AH47 Vacuum Circuit-Breakers Equipment SelectionAccessories and spare parts

On request, we will be pleased to send you an overviewof accessories and spare parts, as well as the spare poleassemblies available. Please consider the following infor-mation for your purchase order.

Remark for orders

The order numbers in the spare part overview are applicableto vacuum circuit-breakers of current manufacture. Whenmounting parts or spare parts are being ordered for anexisting vacuum circuit-breaker, always quote the typedesignation, serial number and the year of manufacture ofthe circuit-breaker to be sure to get the correct delivery.

Retrofitting

When releases/solenoids are retrofitted, the order numbersof the mounting parts must also be specified. For other addi-tional equipment, the required mounting parts are includedin the delivery.

Spare pole assemblies

As spare parts, the vacuum interrupters are always suppliedas a complete pole including post insulator.

To select the correct spare pole assemblies, please specifythe type designation, serial number and year of manufactureof the circuit-breaker. All data is given on the rating plate.

Vacuum pole assemblies and other spare parts must onlybe replaced by instructed personnel.

Accessories for the plug connector

Included in the scope of supply of the basic equipment for3AH47 vacuum circuit-breakers:

For 24-pole plug connector

– Lower part of plug– Crimp sockets according to number of contacts– Upper part of plug with screwed contacts

(no crimp sockets required)

For 64-pole plug connector

– Lower part of plug– Upper part of plug– Crimp sockets according to number of contacts

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Data on the rating plate

Note:For any query regarding spare parts,subsequent deliveries, etc. the followingthree details are necessary:– Type designation– Serial No.– Year of manufacture

Designation Remarks Order No.

Hand crank 3AX15 30-2BLubricant (for special application conditions)

180 g Klüber-Isoflex Topas L32N 3AX11 33-3H1 kg Klüber-Isoflex Topas L32N 3AX11 33-3E1 kg Shell Tellus oil 32 (special oil) 3AX11 33-2D

Wire bundle With 10 wires for auxiliary switch connection to

– 64-pole plug connector 3AX11 34-2D– 24-pole plug connector 3AX11 34-2B– 24-pole terminal strip 3AX11 34-2C

Accessories for plug connector (for wire cross-section 1.5 mm2)

Crimp pins for lower part of plug 24-pole 3AX11 34-3A64-pole 3AX11 34-4B

Crimp sockets for upper part of plug 64-pole 3AX11 34-4CCrimping pliers 3AX11 34-4DDisassembly tool 3AX11 34-4G

24 Siemens HG 11.52 · 2010

R-HG

11-2

13.ti

f


25Siemens HG 11.52 · 2010

3


Operating shaft and operating rod

Post insulator and pole assembly

Contents Page

Technical Data

Electrical data, dimensions and weights:

Voltage level 17.5 kV

Voltage level 27.5 kV (single-pole)

Voltage level 27.5 kV (two-pole)

Circuit diagrams

Operating times

Short-circuit protection of motors

Consumption data of releases

25

26

26

26

30

32

32

32

Technical DataContents

R-HG

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11.ti

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HG11

-212

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17.5 kV162/3 Hz

Ir tk Isc Ima Up Ud

A s kA % kA kA kV kV mV mm mm mm kg

3AH47 54-4… 2000 1 � 3 25 65 28 63 125 50 2.2 360 220 160 90 S_325 00021 1 1

3AH47 55-4… 2000 1 � 3 31.5 65 35.4 80 125 50 2.2 360 220 160 90 S_325 00021 2 1

3AH47 66-6… 2500 1 � 3 40 65 44.9 100 125 50 2.0 276 205 165 110 S_325 00025 3 1

3AH47 57-6… 2500 1 � 3 50 65 56.1 125 125 50 3.2 320 210 210 138 S_325 00022 4 2

3AH47 56-6…-Z D65 2500 1 � 3 40 65 54.3 100 170 70 3.2 320 340 300 138 S_325 00507 3 2

27.5 kV50/60 Hz

Ir tk Isc Ima Up Ud

A s kA % kA kA kV kV mV mm mm mm kg

3AH47 84-2… 1250 1 � 3 25 36 28 63 185 85 2.6 360 409 255 95 S_325 00027 5 3

3AH47 84-4… 2000 1 � 3 25 36 28 63 185 85 2.6 360 409 255 95 S_325 00027 5 3

3AH47 84-6… 2500 1 � 3 25 36 28 63 185 85 2.6 360 409 255 95 S_325 00027 5 3

3AH47 85-2… 1250 1 � 3 31.5 36 35.4 80 185 85 2.2 360 409 255 110 S_325 00027 6 3

3AH47 85-6… 2500 1 � 3 31.5 36 35.4 80 185 85 2.2 360 409 255 110 S_325 00027 6 3

3AH47 84-2…-Z E26 1250 1 � 3 25 36 28 63 200 95 2.6 360 409 270 95 S_325 00527 5 4

3AH47 84-4…-Z E26 2000 1 � 3 25 36 28 63 200 95 2.6 360 409 270 95 S_325 00527 5 4

3AH47 85-2…-Z E26 1250 1 � 3 31.5 36 35.4 80 200 95 2.2 360 409 270 100 S_325 00527 6 4

3AH47 85-4…-Z E26 2000 1 � 3 31.5 36 35.4 80 200 95 2.2 360 409 270 100 S_325 00527 6 4

3AH47 85-6…-Z E26 2500 1 � 3 31.5 36 35.4 80 200 95 2.2 360 409 270 100 S_325 00527 6 4

3AH47 94-2… 1250 1 � 3 25 36 28 63 250 105 4.0 480 480 400 130 S_325 00024 5 5

3AH47 94-4… 2000 1 � 3 25 36 28 63 250 105 4.0 480 480 400 130 S_325 00024 5 6

3AH47 84-2…-Z D31 1250 2 � 3 25 36 28 63 185 85 2.6 360 409 255 95 S_325 00026 5 7

3AH47 85-2…-Z D31 1250 2 � 3 31.5 36 35.4 80 185 85 2.2 360 409 255 110 S_325 00026 6 7

3AH47 85-6…-Z D31 2500 2 � 3 31.5 36 35.4 80 185 85 2.2 360 409 255 110 S_325 00026 6 7

3AH47 84-4…-Z D31 + E27 2000 2 � 3 25 36 28 63 200 95 2.6 360 409 270 95 S_325 00529 5 7

3AH47 85-6...-Z D31 + E27 2500 2 � 3 31.5 36 35.4 80 200 95 2.2 360 409 270 100 S_325 00529 6 7

26 Siemens HG 11.52 · 2010

3


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Technical DataElectrical data, dimensions and weights

� Standard according to IEC 62271-100 Possible

27Siemens HG 11.52 · 2010

3

3AH47 Vacuum Circuit-Breakers Technical DataElectrical data, dimensions and weights

Operating cycle diagrams for 17.5 kV

Operating cycle diagrams for 27.5 kV, single-pole and two-pole

The permissible number of

electrical operating cycles

is shown as a function

of the breaking current

(r.m.s. value). All vacuum

circuit-breakers fulfil the

endurance classes E2,

M2 and C2 according

to IEC 62271-100. The

curve shape beyond the

parameters defined in

IEC 62271-100 is based on

average experience data.

The number of operating

cycles that can actually be

reached can be different

depending on the respec-

tive application.

The permissible number of

electrical operating cycles

is shown as a function

of the breaking current

(r.m.s. value). All vacuum

circuit-breakers fulfil the

endurance classes E2,

M2 and C2 according

to IEC 62271-100. The

curve shape beyond the

parameters defined in

IEC 62271-100 is based on

average experience data.

The number of operating

cycles that can actually be

reached can be different

depending on the respec-

tive application.

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28 Siemens HG 11.52 · 2010

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3AH47 Vacuum Circuit-BreakersTechnical DataElectrical data, dimensions and weights

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29Siemens HG 11.52 · 2010

3

3AH47 Vacuum Circuit-Breakers Technical DataElectrical data, dimensions and weights

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30 Siemens HG 11.52 · 2010

3


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Manual closing – manual opening with auxiliary switch 6 NO + 6 NC

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Technical DataCircuit diagrams

Legend (also for page 31)

A1 Capacitor tripping unitHA Manual openingHE Manual closingK1 Contactor (anti-pumping)M1 Motor operating mechanismP Energy storeR1 Resistance

S1 Auxiliary switchS3 Position switch (opens when

closing spring is charged)S6 Circuit-breaker tripping signalS7 Cutout switch for circuit-

breaker tripping signalS10, Anti-pumping forS11 manual closing

S14, Anti-pumpingS15S21, Position switchesS22 (to de-energize the motor

operating mechanismafter charging)

S41, Position switchesS42 (to indicate the

charging state)

X0 Lower part of plug/terminal strip

Y1 1st shunt releaseY2 2nd shunt releaseY7 Undervoltage releaseY9 Closing solenoid


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Circuit- Signal 1st shuntbreaker “closing spring releasetripping signal charged”

Circuit diagramsThe circuit diagrams shown here are examples from the manifold possibilities of circuit-breaker wiring.

31Siemens HG 11.52 · 2010

3


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Additional equipment: Releases

Technical DataCircuit diagrams

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2nd shunt release Undervoltage Instantaneous releaserelease

Contacts available for customer with basic circuit-breaker equipment

Auxiliary switch –S1 (12 NO + 12 NC) instead of auxiliary switch 6 NO + 6 NC


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32 Siemens HG 11.52 · 2010

3


Operating times

Operating times at rated voltageof the secondary circuit

Equipment of circuit-breaker Operating timeof circuit-breaker

Closing time – < 80 ms

Opening time 1st shunt release < 65 ms

Additional release < 50 ms

Instantaneous release < 17 ms

Arcing time – < 15 ms 1)

Break time 1st shunt release < 80 ms


Instantaneous release (at 162/3 Hz) < 50 ms

Dead time – 300 ms

CLOSE/OPEN contact time 1st shunt release < 90 ms


Minimum command duration Closing solenoid (CLOSED) 45 ms

1st shunt release (OPEN) 40 ms

Additional release (OPEN) 20 ms

Pulse time for circuit-breaker tripping signal 1st shunt release > 15 ms

2nd shunt release > 10 ms

Charging time for electrical operation – < 15 s

1) < 33 ms at a rated frequency of 162/3 Hz

Short-circuit protection of motors (fuse protection of drive motors)

Rated voltageof the motor

Operating voltage Power consumption of the motor Smallest possible ratedcurrent 2) of the m.c.b.(miniature circuit-breaker)with C-characteristic

V max. V min. V W (at DC) VA (at AC) A

24 DC 26 20 500 – 16

48 DC 53 41 500 – 8

60 DC 66 51 500 – 6

110 DC 121 93 500 – 4

220 DC 242 187 500 – 2

110 AC 121 93 – 650 4

230 AC 244 187 – 650 2

2) The current inrush in the drive motor can be neglected due to its very short presence

Consumption data of releases

Release Power consumption

Operation at

Tripping ranges

Tripping voltage

DCapprox. W

AC 50/60 Hzapprox. VA at DC at AC 50/60 Hz

Closing solenoid 3AY15 10 140 140 85 to 110 % U 85 to 110 % U1st shunt release(without energy store) 3AY15 10

140 140 70 to 110 % U 85 to 110 % U

2nd shunt release(with energy store) 3AY11 01

70 50 70 to 110 % U 85 to 110 % U

Undervoltage release 3AY11 03 20 20 35 to 0 % U 35 to 0 % U

Technical DataOperating times, short-circuit protection of motors, consumption data of releases


33Siemens HG 11.52 · 2010

4


Contents Page

Annex

Inquiry form

Configuration instructions

Configuration aid

33

34

35

AnnexContents

Foldout page

Switchgear Factory in Berlin, Germany

Brandenburg Gate, Berlin, Germany

R-HG

11-1

81.ti

fR-

HG11

-180

.eps


34 Siemens HG 11.52 · 2010

4

3AH47 Vacuum Circuit-BreakersAnnexInquiry form

Inquiry concerning

� 3AH47 circuit-breaker

Please

� Submit an offer� Call us� Visit us

Your address

Company

Dept.

Name

Street

Postal code/city

Phone

Fax

E-mail

Siemens AG

Dept.

Name

Street

Postal code/city

Fax

Technical dataOther values

Rated voltage � 17.5 kV

� 27.5 kV

� 162/3 Hz

� 50/60 Hz � _ _ _ kV

Rated lightning impulse

withstand voltage

� 125 kV

� 200 kV

� 170 kV

� 250 kV

�185 kV

� _ _ _ kV

Rated short-duration

power-frequency withstand voltage

� 50 kV

� 95 kV

� 70 kV

� 105 kV

� 85 kV

� _ _ _ kV

Rated short-circuit

breaking current

� 25 kA

� 40 kA

� 31.5 kA

� 50 kA � _ _ _ kA

Rated normal current � 1250 A

� 2500 A

� 2000 A

� _ _ _ A

Number of poles � Single-pole � Two-pole

Secondary equipment

For possible combinations see pages 14 to 21

Circuit-breaker equipment

� Manual mechanical closing

� Manual electrical closing

� Manual operating mechanism

Motor operating mechanism � _ _ _ V DC � _ _ _ V AC, _ _ _ Hz

Closing solenoid � _ _ _ V DC � _ _ _ V AC, _ _ _ Hz

1st shunt release � _ _ _ V DC � _ _ _ V AC, _ _ _ Hz

2nd shunt release � _ _ _ V DC � _ _ _ V AC, _ _ _ Hz

Instantaneous release � 60 V DC � 110 V DC � 220 V DC

Undervoltage release � _ _ _ V DC � _ _ _ V AC, _ _ _ Hz

Auxiliary switch � 6 NO + 6 NC � 12 NO + 12 NC

Low-voltage connection � 24-pole

terminal strip

� 24-pole plug � 64-pole plug

� Mechanical interlocking

Operating instructions � English � German � French � Spanish

Application and other requirements

� Please check off _ _ _ Please fill in


Please copy, fill in and returnto your Siemens partner.

Instructions for configuration of the 3AH47 traction circuit-breaker

1st step: Definition of the primary part (see page 13)

Please specify the following ratings: Possible options:

Rated voltage (Ur) Ur: 17.5 kV (162/3 Hz), 27.5 kV (50/60 Hz)

Rated lightning impulse withstand voltage (Up) Up: 125 kV, 170 kV, 185 kV, 200 kV, 250 kV

Rated short-duration power-frequency withstand voltage (Ud) Ud: 50 kV, 70 kV, 85 kV, 95 kV, 105 kV

Rated short-circuit breaking current (Isc) Isc: 25 kA, 31.5 kA, 40 kA, 50 kA

Rated normal current (Ir) Ir: 1250 A, 2000 A, 2500 A

Number of poles Single-pole, two-pole

These ratings define the positions 6 to 8 of the order number.

2nd step: Definition of the secondary equipment (see pages 14 to 21)

Please specify the following equipment features: Possible options:

Release combination(position 9)

Shunt release, instantaneous releaseand undervoltage release

Closing solenoid(position 10)

Operating voltages from 24 V DC to 240 V AC

Operating voltage of the releases(positions 11/12/13)

Operating voltages from 24 V DC to 240 V AC

Type of local closing(position 10)

Mechanical closing,manual electrical closing

Type of operating mechanism and operating voltage of a motor, if available(position 14)

Manual operating stored-energy mechanism, motor operating stored-energymechanism with operating voltages from 24 V DC to 240 V AC

Number of auxiliary contacts(position 15)

6 NO + 6 NC, 12 NO + 12 NC

Design of the secondary connection(position 15)

24-pole terminal strip, 24-pole plug connector,64-pole plug connector

Language of the documentation(position 16)

English, German, French, Spanish, other languages on request

Frequency of the operating voltage of thesecondary equipment at AC (position 16)

50 Hz/60 Hz

These equipment features define the positions 9 to 16 of the order number.

3rd step: Do you have any further requirements concerning the equipment? (Please refer to page 22)

Should you still need more options than the possible special equipment like halogen-free andflame-retardant or silicone-free version, condensation protection or an additional rating plate, etc.,please contact your responsible sales partner.

For configuration of your3AH47 vacuum circuit-breaker

1 2 3 4 5 6 7 – 8 9 10 11 12 – 13 14 15 16

3 A H 4 7 � � – � � � � � – � � � � – Z

3 A H 4 7 – –

+ + + +

+ + + +

3 A H 4 7 – –

+ + + +

+ + + +

3 A H 4 7 – –

+ + + +

+ + + +

3 A H 4 7 – –

+ + + +

+ + + +

3 A H 4 7 – –

+ + + +

+ + + +

3 A H 4 7 – –

+ + + +

+ + + +

3 A H 4 7 – –

+ + + +

+ + + +

3 A H 4 7 – –

+ + + +

+ + + +

3 A H 4 7 – –

+ + + +

+ + + +

See

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13

See

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13

See

page

13

See

page

14

See

page

15

See

page

16

See

page

17

See

page

18

See

page

19

See

page

20

See

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See

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35Siemens HG 11.52 · 2010

You prefer to configure your 3AH47 traction circuit-breaker on your own?Please follow the steps for configuration and enter the order number in the configuration aid.

.

R-HG

11-1

74.ep

s

Published by and copyright © 2010:Siemens AGEnergy SectorFreyeslebenstrasse 191058 Erlangen, Germany

Siemens AGEnergy SectorPower Distribution DivisionMedium VoltageNonnendammallee 10413623 Berlin, Germany

For more information, please contact ourCustomer Support Center.Phone: +49 180 524 70 00Fax: +49 180 524 24 71(Charges depending on provider)E-mail: [email protected]

Order No. E50001-K1511-A521-A2-7600Printed in GermanyDispo 40402, c4bs 7470KG 05.10 1.0 38 En3600 / 24493

Printed on elementary chlorine-free bleached paper.

All rights reserved.If not stated otherwise on the individual pages of thiscatalog, we reserve the right to include modifications,especially regarding the stated values, dimensions and weights.Drawings are not binding.All product designations used are trademarks or productnames of Siemens AG or other suppliers.If not stated otherwise, all dimensions in thiscatalog are given in mm.

Subject to change without prior notice.The information in this document contains generaldescriptions of the technical options available, whichmay not apply in all cases. The required technicaloptions should therefore be specified in the contract.

www.siemens.com/energy

3ah47 vacuum circuit-breakers for traction applications

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