3AK1432-.....-.... - Siemens

3AK

Vacuum circuit-breaker module

3AK1 and 3AK3

OPERATING INSTRUCTIONS

Order no.: 9229 9923 176 0B

Ordering location: IC LMV LP PO P C41

AG 09.2013 en

29229 9923 176 0B

2013-09-09

For your safety

Signal terms and defini-

tions Hazards are classified in accordan ce with ISO 3864-2 using the following keywords:

• DANGER, WARNING or CAUTION, where there is a risk of personal injury

• NOTE, where there is a risk of material damage.

Hazards are classified and indicated in the operating instructions and on the vacuum

circuit-breaker module as follows:

Qualified personnel are, for the purposes of this manual or the warning notices on the vacuum circuit-

breaker module, persons who are familiar with the transport, storage, placement,

assembly, commissioning, operation and maintenance of the product and have the

qualifications corresponding to their activity, such as:

• training and authorization to energise, de-energise, clear, earth and tag circuits

and equipment in accordance with established safety practices.

• training in the proper care and use of protective equipment in accordance with

established safety practices;

• training in providing first aid.

Product liability

DANGER

signal word used to indicate an imminently hazardous situation which,

if not avoided, will result in death or serious injury.

WARNING

signal word used to indicate a potentially hazardous situation which,

if not avoided, could result in death or serious injury.

CAUTION

signal word used to indicate a potentially hazardous situation which,

if not avoided, could result in minor or moderate injury.

Note

indicates a potentially damaging situation.

If the damaging situation is not avoided, the product or something in its vicinity

may sustain damage.

Note

Product liability claims are upheld only if the replacement of the purchased spare

parts is performed by personnel that have been trained and certified by Sie-

mens.

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Table of contents
For your safety ..................................................................................................................................................  2
Transport, storage and packing .................................................................................................................  5
Transport ......... ................ ............. ................. ................ ................ ................ ......................................................  5
Unpacking ...........................................................................................................................................................  6
Reusing the transport unit ...................................................................................................................................  8
Storage ...............................................................................................................................................................  9
General information ......................................................................................................................................  11
Range of application ............................................................................................................................ ... ...... ....  11
Standards ............... ................ ............. ................ ................ ................ ................ ............................. .... ... ... ... ....  12
Design approval as per X-Ray Ordinance  .............................................................................................. ... ... ....  12
Scope of delivery  ................................................................................................................................. ... ..........  12
Description .......................................................................................................................................................  13
Design ........................................................................................................................................ ... ... .... ... ... ... ....  13
Locking devices  ...................................................................................................................................... ... ... ....  25
Rating plate ............... ........................................................................................................... ... ... ... ... .... .............  27
Technical data ...................................................................................................................................... ... ... ... ....  27
Ambient conditions ........................................................................................................................... .... ...... ... ....  28
Installation altitudes  ...................................................................................................................... ... .... .............  28
Switching times ................................................................................................................................ .... .............  29
Circuit diagrams ......................................................................................................................... ... ... ....... ... ... ....  30
Mounting .............. ............................. ............................. ............................. ...................................... .... ... ... ... ....   35
Attachment in the switching cubicle ................................................................................................. .... .............  35
Coding ................. ................ ............. ................ ................ ................ ................ ............................. ... .... ... ..........  36
Earthing ............... ................... ................ ................... .................... ................... ................................ .... ... ... .......  37
Fitting the vacuum circuit-breaker module .......... ... ... .... ... ... ... ...........................................................................  38
Moving the vacuum circuit-breaker module into operating position ..................................................................  40
Electrical connection of the prime conduc tor  ...... ... ...........................................................................................  41
Operation .......................................................................................................................................... .... .............  43
Commissioning ....................................................................................................................................... ... ... ....  43
First closing operation ............................................................................................................................. ... ... ....  44
Closing ....................................................................................................................................... ... ... .... .............  45
Opening ........................................................................................................................................... .... ... ... ... ....   45
Maintenance .............................................................................................................................................. ... ....  47
Maintenance and servicing ..................................................................................................................... ..........  47
Vacuum interrupter service life  . ........................................................................................................................  50
Accessories and spare parts ............................................................................................................ .... ... ... ... ....  50
Manufacturer's product liability ............ ... ... ....................................................................................... .... ... ... ... ....  51
Disposal ........................................................................................................................................... .... ... ... .......  51
Service ....................................................................................................................................... ... ... .... .............  51
Index of keywords .........................................................................................................................................  53
Legend for all pages .....................................................................................................................................  55

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Transport, storage and packing

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Transport, storage and packing

Transport

Transport weight Refer to the delivery slip for the weight of the transport unit.

Place the transport unit on a level, n on-slip a nd pressur e-resi stant surf ace for inter -

mediate storage.

Transport vacuum circuit-breaker in the original transport unit up to the installation

site or storage location.

Transporting with crane or fork lift

WARNING

Heavy transport weight

Transport unit may fall and fail and sling gear may break.

Use lifting gear, transporting and sling gear suited to the requirements and load-

carrying capacity. Observe transport symbols.

Note

Observe stacking height

For transport, no more than three constructionally identical transport units must

be piled on top of each other.

Observe the loads specified on the transport unit.

Note

Secure load

For transport, secure the load in such a way that the transport unit is not at risk.

Fig. 1 Transporting the pallet with carton

Transport, storage and packing

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Transporting with packing Transport the transport unit to the installation site or storage location

• with a fork lift or

• with sling gear suspended from a crane

- at an angle of twist of approx. 60° or

- with a spreader bar.

After receipt of delivery:

Checking the transport

unit • Check transport unit for damage.

• Major damage must be documented photographically.

• Ensure that any damage to the transport unit is confirmed by the transport com-

pany.

Unpacking

Working equipment Required tools:

- Knife/scissors

- Lifting equipment with lifting gear

- Pliers or lever.

CAUTION

Risk of injury from sharp edges!

Fasteners may break, leaving sharp edges.

Always use a suitable tool to lever ou t fast en e rs.

Note

Do not cut open or dama ge the carton, since it is designed to be re used and

because of the belt straps located underneath.

Belt straps could be severed on the pallet floor when cutting open the carton.

The vacuum circuit-breaker module is attached to the pallet with belt straps. It is

not possible to transport the vacuum circuit-breaker module on the pallet without

using belt straps (see Fig. 4).

Fig. 2 Removing the carton

Transport, storage and packing

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Opening the transport unit • Place the transport unit on a level, non-slip and pressure-resistant surface.

• Remove lifting gear or transport means.

• Remov e pla st ic wrap .

• Lever out fasteners from the carton and lift off carton.

• Remove film from the vacuum circuit-breaker module.

• Check the delivery is complete.

• Check vacuum circuit-breaker module for damage.

• If the vacuum circuit-breaker module is damaged, ship it back in the transport

unit (see “Reusing the transport unit” on page 8).

Transporting with pallet,

without carton The vacuum circuit-breaker module can be transported with the pallet, without the

carton.

• Thread carrying straps under the pallet or

• transport with fork lift.

Note

Do not use the vacuum circuit-breaker if parts are broken, i.e. if you find cracks,

flaking, bent metal parts, damaged plug-in contacts, tears or bare cables.

Send it back in its original transport unit (see “Reusing the transport unit”,

page 8).

Note

Carrying straps may scrape along the vacuum circuit-breaker module and dam-

age it.

If necessary, cover carrying straps with edge protection.

Fig. 3 Removing the film Fig. 4 Transporting with pallet possible

Transport, storage and packing

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Transporting without pallet • Removing tensioning belts.

• Remove accessory pack, if applicable, and store safely in the packaging for

later attachment.

• Hang sling gear into the crane eyes.

• Carefully lift vacuum circuit-breaker module.

• Transport to installation site or leave suspended from crane for further work

steps.

Reusing the transport unit

Reusing the transport unit To transport the vacuum circuit-breaker module again, the pallet with carton and

most of the components can be reused.

Do not reuse severed tensioning belts or plastic wrap.

Pack the vacuum circuit-breaker module in reverse order:

• If the transport bracket was already removed, re-mount in reverse order (see

“Delivery state with tra nsport bracket” on p age 36). The transport bracket serve s

to lock the withdrawable part in place in the cartridge insert during transport.

• Attach the vacuum circuit-bre aker module safely to the p allet usin g the appropr i-

ate tools.

• Cover with film and seal with adhesive tape.

• Attach accessories pack.

• Attach carton securely to the pallet floor.

• Before returning to the factory, ask the responsible sales representative for a

returned goods number (see also “Service”, on page 51).

• When returning a vacuum circuit-breaker module, always indicate the type and

serial number (see “Rating plate” on page 27).

Fig. 5 Removing the tensioning belts Fig. 6 Lifting the vacuum circuit-breaker module

Note

If necessary, keep accessory pack on hand for the installation.

Transport, storage and packing

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Storage

Note

Store the vacuum circuit-breaker module in the following condition:

• OPEN switching position

• Closing spring discharged

Note

Risk of corrosion damage if stored improperly!

If the storage cond itions listed below are met, the vacuum circu it-breaker module

can be stored for up to a year in its transport unit.

If the stora ge condition s are no t met, the vacuum cir cuit-brea ker module cannot

be stored in the transport unit any longer than 6 months.

If storage of longer than one year is planned, unpack the vacuum circuit-breaker

module fr om the transpor t unit. Further st orage may nece ssitate fresh corr osion

protection, and it must be ensured that the vacuum circuit-breaker module canno t

be damaged.

Storage room Transport unit Storage

time Temperature

range Comments Number of

units per

stack

Enclosed, dry, well

ventilated and as

free from dust as

possible, with a rela-

tive humidity of less

than 60 %.

unopened max.

6months -40°C to +55°C — max. 4

unopened max.

1 year -5 °C to +40 °C — max. 4

open over 1 year -5 °C to +40 °C if necessary,

with new corro-

sion protectio n —

Transport, storage and packing

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General information

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General information

Smooth and safe operation of this device requires proper transport and storage, and

professional installation and assembly, as well as careful operation and mainte-

nance.

The basic version and all listed configurations of the vacuum circuit-breaker mod-

ules are type-tested devices as per IEC (3AK3 as per IEEE).

Range of application

3AK vacuum circuit-breaker modules are 3-pole interior circuit-breakers for a rated

voltage range of 7.2 kV - 17.5 kV.

Under norma l operating conditions, the vacuum c ircuit-breaker modu les are main-

tenance-free up to 10 000 operating cycles.

Intended use 3AK vacuum circuit-breaker modules are suitable for switching any type of alternat-

ing current circuits under normal operating conditions, such as:

• Three-phase motors for reversing, turning and direct operation

• Transformers

• Capacitors

• Generators

• Resistor consumers

Suitable for high frequency of operation and unlimited on-time.

3AK vacuum circuit-breake r modules operate in continuous, periodic and sho rt-term

operation.

WARNING

Dangerous voltage and mechanical movements

When operating electrical devices, certain parts will always be live, and

mechanical parts may move very quickly, even when remotely controlled.

If the warnings are not observed, serio us injury or damage to material may be the

result.

Only personnel with the relevant qualifications may work on or in the vicinity of

this device. These personnel m ust be familiar with all the warnings and servicing

measures specified in these operating instructions.

Note

In the event of subsequent attachments or integrations, e. g. locking parts in con-

nection with switchgears, ensure that

• fast-moving parts are not additionally loaded with mass or force, and

• additional parts have sufficient clearance, especially from moving and live

parts.

If vacuum circuit-breaker modu les are to be equipped with additional functions by

the customer, we recommend consulting the factory, since tried and tested solu-

tions are frequently available (see also “Additional equipment”, on page 17).

General information

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Standards

The 3AK vacuum circuit-breaker modules comply with the regulations:

• IEC 62271-100,

• IEC 62271-1,

• IEC 60265-1

• IEEE C37.013 (only 3AK3).

All 3AK vacuum circuit-breaker modules comply with the specifications for C2-, E2-

and M2-class circuit-breakers in accordance with IEC 62271-100.

Design approval as per X-Ray Ordinance

The vacuum interrupters installed in the vacuum circuit-breaker modules are of a

design approved under the X-Ray Ordina nce (RöV ) of the Feder al Republic of Ger-

many. They meet the requirements of RöV of 8 January 1987 (BGbl. I, page 114)

§ 8 and Annex II No. 5 up to the level of the rated voltage stipulated according to DIN

VDE/IEC.

Scope of delivery

Delivery includes:

• 3AK Vacuum circuit-breaker module

• Hand crank for circuit-breaker 3AX 1530-2B (optional)

• Traversing crank with hand screen for disconnecting component 3AX 1531-4B

(optional)

• Operating tool for the earthing switch (manual operation) 3AX1531-3C

(optional)

• Operating tool for the earthing switch (motor operation) 3AX1531-3D (optional)

• Operating ins tru ct ion s

• Circuit-breaker-specific circuit diagrams

Description

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Description

Design

The 3AK vacuum circuit-breaker module consists of

• the mechanism box (60.),

• the 3 pole assemblies (19.) with vacuum interrupters (30.),

• the cartridge insert (90.) with withdrawable part (80.).

Fig. 7 Opera tin g mech a nism side

15. Pole plate 90. Cartridge insert

19. Pole assembly, complete 93. Locking pin

51. Rating plate 95. Unlocking lever of the cartridge insert

60. Mechanism box 96. Actuating opening for manually operating the earthing switch (optional)

60.3 Transportation eye 97. Position indicator of the earthing switch (optional)

80. Withdrawable part of the cartridge

insert 98. Actuating opening for manually operating the withdrawable part

81. Locking bracket 99. Indication of the operating and disconnected position of the withdrawable part

84. Mounting rail

Description

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Pole assembly The pole assembly of the 3AK vacuum circuit-breake r module consists of

• the upper interrupter support (20.),

• with the upper terminal (27.) and the break contact (21.),

• the vacuum interrupter (30.),

• the lower interrupter support (40.) with the lower terminal (29.) and the break

contact (21.).

Each of the 3 pole assemblies is supported by the pole columns (23.), which are

screwed to the pole plate (15.).

Contact system in the vacuum interrupters

A slight change in the conta ct stroke that occurs over the entire useful life of the vac-

uum interrupter has no effect on its function. There is no need for a status indicator

for the contact system.

Fig. 8 Pole side

15. Pole plate 48. Insulating operating rod

20. Upper interrupter support 68.7 Automatically coupling low-voltage plug

21. Break contact 80. Withdrawable part

23. Pole column 84. Mounting rail

26. Earth terminal 87. Coding

27. Upper terminal 90. Cartridge insert

29. Lower terminal 93. Locking pin

30. Interrupter 109. Coupling of the earthing switch drive

40. Lower interrupter support

Description

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Mechanism box The mechanism box (60.) contains all the electrical and mechanical components

required to switch the vacuu m circu it- breake r mo du le on or off. In sulating op era ting

rods (48.) transfer the switching movement to the pole assemblies.

The mechanism box is closed with a removable cover (60.1).

There are openings in the cover (60.1) for the operating and indicator elements.

Functions The CLOSE pushbutton (53.) is used to close the vacuum circuit-b reaker module.

The motor (50.4) immedi ately charges the clos ing spring (62.). If th e supply voltage

for the motor fails, the closing spring can be charged wi th a hand crank (50.). Ther e

is an opening (50.1) for this in the cover, behind which you will find the hand crank

coupling (50.5) of the gear unit (50.2).

Indicators The charged state o f the springs is indicated via the sprin g state indicator (55.). The

position indicator (59.) shows the CLOSED or OPEN state. The operating cycle

counter (58.) indicates the number of operating cycles. An operating cycle consists

of one closing and one opening. The rating plate (51.) is attached to the pole plate

(15.).

Fig. 9 Operating and indicator elements

50.1 Opening for hand crank 58. Operating cycle counter

51. Rating plate 59. Position indicator CLOSED-OPEN

53. CLOSE pushbutton 60.1 Cover

54. OPEN pushbutton a) Tightening torque Md = 10 Nm

55. Spring state indicator

Description

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Fig. 10 Opened mechanism box

50.2 Gear unit 60. Mechanism box

50.4 Motor M1 61. Dashpot

50.4.1 Position switch 62. Closing spring

50.5 Hand crank coupling 63. Circuit-breaker shaft

53.1 Closing solenoid Y9 64. Opening spring

54.1 Shunt release Y1 66. Closing damper

54.2 Shunt release Y2 68. Auxiliary switch S1

54.3 Transformer-operated release Y4 68.1 Operating rod (for auxiliary switch S1)

54.4 Undervoltage release Y7 69. Contactor relay K1

54.5 Transformer-operated release (0.1 Ws) Y6 71. Heater (condensation water protection)

55. Spring state indicator

58. Operating cycle counter

59. Position indicator CLOSED-OPEN

Description

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Equipment

Basic equip m en t The basic equipment of the 3AK vacuum circuit-breaker module contains:

Additional equipment Every 3AK vacuum circuit-breaker module can also be fitted with the following

equipment:

In addition to the serial shunt release (Y1), the vacuum circuit-breaker module can

be equipped with a maximum of 2 releases of the type 3AX11.

For the permitted possible combinations of the additional equipment as well as spe -

cial designs, refer to catalogue HG11, or contact the responsible sales representa-

tive.

Motor (M1)

Contactor re la y (e lec tric al an ti- pu m pin g device) (K1)

Closing solenoid (Y9)

Shunt release (Y1)

Auxiliary switch (optional) (S1)

•6NO + 6NC

•12NO + 12NC

Position switch for signal “Closing spring charged” (S41, S42)

Circuit-breaker tripping signal, cut-out switch (S6, S7)

Low-voltage interface (automatically coupling low-voltage plug 64-

pole) (X0)

Operating cycle counter

Mechanical anti-pumping device

Mechanical manual closing and opening

Mechanical locking device

Shunt release1) 3AX1101

1) Subsequent installation possible

(Y2, Y3)

Transformer-operated release 3AX11021) (Y 4, Y5)

Transformer-operated release 3AX1104 (0.1 AC)1) (Y6)

Undervoltage release 3AX11031) (Y7)

Heater (condensation water protection)1) (R01)

Electrical manual closing2)

Priority opening 2)

2) No subsequent installation possib le

Description

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Motor M1

*) The operator' s sup ply voltage may de viat e fro m th e rated su pply voltag e of the

vacuum circuit-breaker module by -15 % to +10 %.

**) Built-in automatic circuit-breaker with C characteristic

Fig. 12 Recommendation for motor protection device

Contactor relay K1

After the supply voltage is applied and if the closing

spring is discharged, the motor starts immediately and

is automatically deactivated internally after charging has

taken place.

Power consumption, maximum:

• in the event of direct voltage approx. 750 W

• in the event of alternating voltage 1400 W.

In the short charging time, the motor temporarily oper-

ates in the overload range. See Fig. 12 for the rate d cur-

rent for the required motor short-circuit protection.

Note: The motor protection devices are not included in

the delivery of the vacuum circuit-breaker module and

must be ordered separately.

Fig. 11 Motor (50.4)

Rated supply voltage U*) VDC

24 DC

48 DC

60 DC

110 AC 50/60 Hz

110 DC

220 AC 50/60 Hz

230

Recommended rated current of the protective

device I**)A16106462 3

If simultaneous CLOSED and OPEN commands are

continuously applied to the vacuum circuit-breaker, it

returns to the open position after being closed.

Via the function of the contactor relay K1, the vacuum

circuit-breaker pauses there until the CLOSE command

is given again.

This prevents continuous closing and opening (pump-

ing).

Fig. 13 Contactor relay (69.)

Description

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Closing solenoid (Y9) 3AY1510

1st shunt release (Y1) 3AY1510

The closing solenoid Y9 unlatches the charged closing

spring and switches the vacuum circuit-breaker module

on electrically. It is available for DC or AC voltage.

The closing solenoid Y9 is not designed for continuous

operation and is a utomaticall y deactivated within the cir-

cuit-breaker.

The operator's supply voltage may deviate from the

rated supply voltage of the vacuum circuit-breaker mod-

ule by -15 % to 10 %.

The closing solenoid Y9 can be operated using AC or DC

voltage and is protected against overvoltage.

Power consumption is approximately 140 W / VA

Fig. 14 Closing solenoid (53.1)

In the case of the 1st shunt release Y1, the electrically

fed tripping pulse is passed to the “OPEN” latch by

means of a directly acting magnet armature, thus switch -

ing off the vacuum circuit-breaker module.

The 1st shunt release Y1 is not designed for continuous

operation and is automatically deactivated within the

circuit-breaker.

The operator's supply voltage may deviate from the

rated supply voltage of the vacuum circuit-breaker mod-

ule by -30 % to +10 % in the event of DC voltage and by

-15 % to +10 % in the event of AC voltage.

The 1st shunt release Y1 can be operated using AC or

DC voltage and is protected against overvoltage.

Power consumption is approximately 140 W / VA

Fig. 15 1st shunt release (54.1)

Description

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Auxiliary swit ch S 1

Breaking capacity

Fig. 17 Breaking capacity of the auxiliary switch 3SV92

Two versions of the auxiliary switch S1 are available for

delivery: with 6 or 12 NO/NC contacts each.

Rated insulation voltage: 250 V AC/DC

Insulation group: C as per VDE 0110

Continuous current: 10 A

Closing capacity: 50 A

Fig. 16 Auxiliary switch (68.)

AC 40 to 60 Hz DC

Operating voltage Operating current Operating voltage Operating current

U (V) I (A) U (V) I (A)

Ohmic load Inductive load

(T = 20 ms)

Up to 230 10

24 10 10

48 10 9

60 9 7

110 5 4

220 2.5 2

Description

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Position switch

Circuit-breaker tripping signal, cut-out switch (S6, S7)

S21, S22 Position switches (switch off the motor after

charging)

S3 Position switch (opens when closing spring

is charged)

S41, S42 Position switches (report charging state)

Fig. 18 Pos i tio n switc h (5 0. 4.1 )

The position switch S6 makes contact briefly when the

vacuum circuit-breaker module is opened by means of

an electrical release.

This contacting can be used for a signal.

In the event of intentional mechanical opening, the cut-

out switch S7 interrupts the contacting.

Fig. 19 Circuit-breaker tripping signal

Description

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Low-voltage interface X0, 64-pole

For connection of the control line, the standard version of the vacuum circuit-breaker

modules is equipped with a 64-pole low-voltage plug (68.7).

Fig. 20 Low-voltage interface X0

Description

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A further shunt release, transformer-operated release, undervoltage release or

instantaneous release can be installed as a 2nd release.

2nd shunt release (Y2) 3AX1101

Transformer-operated releases (Y4, Y5) 3AX1102, (Y6) 3AX1104

The second shunt release Y2 is installed whenever more

than one shunt release is needed.

In this version, the electrical “open” command is passed

by means of a magnet armature to the “OPEN” latch by

release of an energy storage mechanism, thus opening

the vacuum circuit-breaker module. This opening sole-

noid is not designed for continuous operation. Any nec-

essary varistors and rectifiers are integrated in the

release.

Power consumption is approximately 60 W / VA

Fig. 21 2nd shunt release (54.2)

The transformer-op erated re leases Y4, Y5 or Y6 consist

of an energy storage mechanism, an unlatching fixture

and an electromagnetic system. If the tripping current is

exceeded (90 % of the transformer-operated release's

rated current), the energy storage mechanism is

unlatched, thus initiating opening of the vacuum circuit-

breaker module.

For use of the transformer-operated release, matching

transformers are also n eeded for matching, in addition to

the main current transformers.

Power consumption for 0.5 A and 1 A ≤ 6 VA at ≤90 %

of the transformer-operated release's rated current and

with open armature.

Fig. 22 Transformer-operated releases (54.3)

Description

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Undervoltage release (Y7) 3AX1103

The undervolta ge release Y7 has an electromagne t system that has voltage perma-

nently applied to it when the va cuum circ uit-breaker module is in the closed state. If

the voltage drops below a certain value, the undervoltage release Y7 is unlatched,

thus initiating opening of the vacuum circuit-breaker module via the stored energy

mechanism.

Random tripping of the undervoltage release Y7 is generally performed by an NC

contact in the tripping circuit, but can al so be done with the aid of an NO contact by

short-circuiting the solenoid coil. If this latter method is used, the solenoid coil's

short-circuit cu rr en t is limite d by the bu ilt- in re sist or .

The undervoltage release Y7 can also be connected to voltage transformers.

The undervo ltage relea se Y7 au tomatically trips the vacuum cir cuit-br eaker module

if the rated supply voltage drops to an inadmissible value. Any necessary varistors

and rectifiers are integrated in the release.

Power consumption ≤6.5 W or ≤7.5 VA

Note

The undervoltage release Y7 must only be operated with the supplied series

resistor R1.

Note

For switching operations (mechanical or electrical), the undervoltage release

3AX1103… must be connected to control voltage, as otherwise closing is not pos-

sible.

Fig. 23 Undervoltage release (54.4) Fig. 24 Typical circuit for connection of the undervolt-

age release Y7

R1 resistor

S1 auxiliary switch

Y7 undervoltage release

Description

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Heater (condensation water protection)

Electrical manual closing/electr. locking device

In the basic version, the vacuum circuit-breaker module with on-site connection is

closed by direct mechanical unlatching of the closing spring. Instead of this mechan-

ical manual closing, “electrical manual closing” is also available.

In this version, the closing circuit of the vacuum circuit-breaker module is electrically

actuated by a sensing device and must also be enabled via a command element

from the control room.

With on-site closing, this permits taking into account system-related interlocking and

allows you to prevent unintentional closing by the control room, for example. This

allows for interlo cking the vacuum circuit-br eaker module, for example, via the aux-

iliary contact of a disconnector.

Vacuum circuit-breaker modu les with ele ctr ic al manu al closing cann ot b e switched

mechanically.

Locking devices

To lock vacuum circuit-breakers as a function of the switching position, the spring

charge mechanisms of the vacuum circuit-breaker ca n be equipped with a lo cking

device. This is also the case for vacuum circuit-breakers on switch gear trucks, in

withdrawable sections or with disconnectors.

Conditions The vacuum circuit-breaker must only be switched on in operating or disconnected

position. The operating or disconnected position is the position of the vacuum circuit-

breaker on the switchgear truck or withdrawable section in the switchgear. At the

same time, the vacuum circuit-breaker may be moved on the switchgear truck or

withdrawable section only when it is open.

Positions of th e vac uum circuit-br ea ke r in the switchgear

Disconnected position The isolating distance between the vacuu m circuit-breaker contacts and the switch-

gear counter-contacts is attained fully .

Operating position The vacuum circuit-breaker is inserted fully into the switchgear and the vacuum cir -

cuit-breaker contacts overlap completely with the switchgear counter-contacts.

The heater limits conden sation and corrosion of the vac-

uum circuit-breaker module.

To this end, the heater has to be connected to the sup-

ply voltage (see circuit diagram included with the deliv-

ery).

The heater's surface tempe rature is at the most 180 °C.

Power consumption 50 W

Fig. 25 Heater (71.)

Description

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Locking the vacuum circuit-breaker

A sensing and actuation component in the cartridge insert detects the operating

position (CLOSED/OPEN) of the vacuum circuit-breaker.

CLOSED switching posi-

tion If the vacuum circuit-breaker is closed, actuation of the system's sensing and actu-

ation component in the cartridge insert is prevented. A mechanical system in the

switchgear truck or withdrawable section reliably blocks movements of the with-

drawable part on the switchgear truck or withdrawable section.

OPEN switching position If the vacuum circuit-breaker is open, the sensing and actuation component in the

cartridge insert actuates the vacuum circuit-breaker's mechanical locking device

and reliably blocks closing of the vacuum circuit-breaker.

Locking device of the cartridge insert

When the unlo cking le ver (9 5.) is fully folded down, the cartridge insert is locked in

the switchgear by the locking pins projecting from the side (93.) With this the with-

drawable par t is enable d fo r mo vin g.

Locking device for the actuating openings (optional)

The locking magnets Y8 (102.) and Y10 (103.) are u sed to electrically lock the actu-

ating openings in the switch cabinet door. As a result the actuating openings for

manually operating the earthing switch (96.) and the withdrawable part (98.) are no

longer accessible.

Fig. 26 Locking the withdrawable section Fig. 27 Locking the actuating openings

Description

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Rating plate

Technical data

Fig. 29 Technical data

Dimensions and weights

The dimensions of the vacuum circuit-breaker module can be taken from the rele-

vant dimension drawing. If required, these are available from your sales represent-

ative.

The weight is given on the rating plate of the vacuum circuit-breaker module (see

Fig. 28) or can be taken from the relevant dimension drawing.

Fig. 28 Example – vacuum circuit-breaker module rating plate 3AK

a Manufacturer

b Type designation

c Works serial number

d Rated voltage Ur

e Rated frequency fr

f Rated short-circuit breaking current Isc

g Rated power frequency withstand

voltage Ud

h Rated lightning impulse withstand

voltage Up

i Quality control seal

k Year of manufacture

m Rated operating current Ir

n Rated short-circuit duration tk

oMass m

p Rated operating sequence

r Classification to standard

Rated voltage* UrkV 7.2 12 17.5 17.5

Rated operating current IrA 1250, 2000 , 2500, 3150 , 4000** 1250, 2000,

2500

Rated lightning impulse withstand voltage (peak

value) UpkV 60 75 95 95

Rated power freq uency withstand voltage (effective

value) UdkV 20 (32,

42***) 28 (42***) 38 (42***) 38 (42***)

Rated short-circuit breaking currentIsc kA 40/50 40

Distance between pole centres mm 210 210

Rated operating sequence A B

A O - 3 min - CO - 3 min - CO

B CO - 30 min - CO

* In the event of a rated frequency fr of 50/60 Hz

** 4000 A only with additional cooling

*** On request

Description

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Ambient conditions

Installation altitudes

Insulating capacity The insulating capacity of insulation in air decreases with rising altitude due to the

lower air density. In conformity with IEC 62271-102, the rated lightning impulse volt-

age values given in Fig. 29 are valid up to an installation altitude of 1,000 m above

sea level.

At altitudes of 1,000 m and higher, the insulation level must be corrected as shown

in Fig. 31:

3AK vacuum circuit-breaker modules are suitable for use

in the following climate classes in accordance with

IEC 60721, Part 3- 3: Class

• Climatic ambient conditions: 3K41),

3K62),

3Z2,

3Z5

• Biological ambient conditions: 3B1

• Mechanical ambient conditions: 3M2

• Chemically active substances: 3C23)

• Mechanically active substances: 3S24)

1) Peak value of the 24-hour means: +35 °C

2) Without ice formation and wind-driven precipitation

3) Without occurrence of salt fog and simultaneous condensation

4) Restriction: clean insulating parts

5) Average value, measured over 24 hours

6) Average value, measured over 1 month

Fig. 30 Ambient conditions

U  U0  Ka

U Rated withstand voltage U under standard reference

atmosphere

U0Required rated withstand voltage for the installation

location

KaAltitude correction factor

Ka = em  (H – 1000)/8150

Calculating the altitude correction factor Ka:

H = Installation altitude in metres

m = 1 for AC voltage, lightning impulse voltage (between

phases, phase-to-earth, applied longitudinally)

Example

For a required rated withstand voltage of 75 kV at an alti-

tude of 2,500 m, an insulation level of at least 90 kV

under standard reference atmosphere conditions is

required:

90 kV  75 kV  e1  (2500 – 1000)/8150

75 kV  1.2

Fig. 31 Altitude correction factor Ka

Description

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Switching times

Fig. 32 Switching times

Closing time = period between starting (command) of the closing movement and

the moment of contact touch in all poles.

Opening time = period betwe en starting (comma nd) of the opening m ovement and

opening of the last pole.

Arcing time = period from the start of the first arc to extinction of the arcs in all poles.

Break-time = period between starting (command) of the opening movement and

extinction of the arc in the la st pole to become extinc t (= opening time + arcing time).

Close/Open time = period in an OPEN/CLOSE cycle between the moment of con-

tact touch in the first pole during closing and the time when contact touch has been

cancelled in all poles during subsequent opening.

Dead-time = period from the en d of the current flow in all poles up to the start of cur-

rent flow in the first pole.

Closing time < 75 ms

Opening time

1st shunt release (Y1) < 60 ms

2nd and 3rd release (Y2, Y4, Y6, Y7) < 55 ms

Arcing time < 15 ms

Break time

1st shunt release (Y1) < 75 ms

2nd and 3rd release (Y2, Y4, Y6, Y7) < 70 ms

Dead time 300 ms

Close/Open time

1st shunt release (Y1) < 90 ms

2nd and 3rd release (Y2, Y4, Y6, Y7) < 70 ms

Minimum command duration

Closing solenoid (Y9) 45 ms

1st shunt release (Y1) 40 ms

2nd and 3rd release (Y2, Y4, Y6, Y7) 20 ms

Shortest pulse time for br ea ke r tr ipp ing si gn al

1st shunt release (Y1) > 15 ms

2nd and 3rd release (Y2, Y4, Y6, Y7) > 10 ms

Charging time if actuated electrically (M1) < 15 s

Synchronous operation error between the poles ≤ 2 ms

Description

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Circuit diagrams

The circuit diagrams show all the available components with their wiring options.

Fig. 33 to Fig. 39 show some non-binding examples of vacuum circuit- breaker mod-

ules.

The circuit diagrams for the vacuum circuit-breaker module are compiled depending

on your order.

Mechanical manual closing and electrical closing

Fig. 33 Sample circuit diagram – connection via low-voltage interface, 64-pole,

basic version

Electrical manual closing and electrical clos ing

Fig. 34 Example – circuit diagram with connection via low-voltage interface 64-

pole.

This legend is also valid fo r the following circuit diagrams.

-Y1 -Y2 -Y4

-Y4 -Y5

-Y6 -Y7

-Y7

”OPEN” release

-Y1 -Y2 -Y4

-Y4 -Y5

-Y6 -Y7

-Y7

”OPEN” release

extended auxiliary switch

HA Manual opening S3 Position switch (opens when closing spring is charged)

HE Manual closing S41, S42 Position switches (signal charging status)

K1 Contactor relay (anti-pumping device) S6, S7 Position switches (for circuit-breaker tripping signal)

M1 Motor X0 Low-voltage interface

P Energy storage mechanism Y1 1st shunt release

R1 Resistor Y2 2nd shunt release

S1 Auxiliary switch Y4, Y5, Y6 Transformer-operated release

S10, S11 Position switch (mechanical anti-pumping device) Y7 Undervoltage release

S12 Position switch (prevents electrical closing if there is a

mechanical locking device) Y9 Closing solenoid

S21, S22 Position switches (switch off the motor after charging) V6 Integrated rectifiers for motor

Description

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1) Integrated varistor

2) Integrated rectifier for AC/DC ≥100 V

3) Line H07V-K1x2.5sw (as per EN 50525-2-31) when motors are used with DC 24 V/48 V and 60 V

4) Only if a mechanical closing lock is ordered at the same time

a) Motor winding for DC

b) Motor winding with rectifier for AC

c) Closing

d) Closing with anti-pumping device

Fig. 35 Sample circuit diagram 64-pole (part 1) of the vacuum circuit-breaker

a) b) c) d)

Description

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1) Integrated varistor

2) Integrated rectifier for AC/DC ≥100 V

a) 1st shunt release with 64-pole plug-connector

b) 2nd shunt release with 64-pole plug-connector

Fig. 36 Sample circuit diagram (part 2) of the vacuum circuit-breaker module

a) b)

Description

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1) Integrated varistor

2) Integrated rectifier for AC/DC ≥100 V

3) Attention: connect L+ for direct current (DC)

a) Undervoltage release

b) Low-energy trip-coil

c) 1st transformer-operated release

d) Signal: spring state with 64-pole plug-connector

e) Circuit-breaker tripping signal for 64-pole plug-connector

Fig. 37 Sample circuit diagram (part 3) of the vacuum circuit-breaker module

a) b) c) d) e)

Description

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The unassigned auxiliary switch terminals are wired up (as shown) with the 64-pole

plug bottom.

Fig. 38 Example – auxiliary switch terminals

Fig. 39 Sample switching operation for connection of the undervoltage release Y7

Normal auxiliary switch Extended auxiliary switch

No wiring required if

a) 2nd shunt release Y2 available

b) Undervoltage release Y7 available

a) b)

System wiring Tripping via NO con-

tact

Tripping via

NC contact

System wiring

Circuit-breaker wiring

Mounting

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Mounting

Attachment in the switching cubicle

The vacuum circuit-breaker module is delivered in the OPEN switching position.

Before installing the vacuum circuit-breaker module, remove the transport aids (see

“Unpacking” on page 6).

Mounting position The 3AK vacuum circuit-breaker module can only be installed vertically (to the vac-

uum interrupter), as an indoor withdrawable section and as an indoor fixed installa-

tion.

DANGER

High-voltage – danger to life

Touching live parts causes an electric shock.

• Do not touch live parts!

• When per for m ing wor k on th e switc hg e ar, de-energise it and ea rt h it.

• The work described in the following sections must only be performed when

the switchgear has been de-energised:

- Take safety measures to prevent reclosing.

- Observe industrial safety regulations.

- Ensure that the vacuum circuit-breaker module is installed and commis-

sioned only by qualified personnel who are familiar with the operating

instructions and observe the warning notices.

WARNING

Risk of injury due to wrong transport means!

Using wrong transport means may cause the vacuum circuit-breaker module to

fall and injure persons.

• Observe weight.

• Use means of transport suited to the requirements and load-carrying capac-

ity.

• The vacuum circuit-breaker module must not fall over.

• Sharp edges may cause injury.

Note

For preliminary work, the vacuum circuit-breaker modulemust be

• secured against falling over,

• placed on to a su itable supp or t or

• suspended from a crane to prepare for installation.

Fig. 40 Mounting position

Mounting

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Coding

Delivery state with trans-

port bracket The transport bracket locks the withdrawable part into place during transport and

must be removed as follows:

• Removal of the M10 nut with washer.

• Carefully pull the transport bracket forwards, lift slightly and over closing sole-

noid Y8 (optional).

• Remove film and now loose nut underneath. It serves as height adjustment and

must be reused for further transport securing, as does the film.

Note

The vacuum circuit-breaker module can only be fitted into switchbays or switch

cabinets whose coding allows for such fitting.

The coding must not be modified.

The mechanical coding of t he circuit-breaker and th e cir-

cuit-breaker room prevents that similar withdrawable

sections with lower rated operating currents are fitted

into switchbays with larger rated operating currents.

For example, a circuit-breaker for 2 500 A rated operat-

ing current can replace a 1 250 A circuit-breaker, if the

voltage and opening values are equal or larger than

those of the 1250 A switchbay.

However, the 1250 A circuit-breaker cannot replace the

2500 A circuit-breaker.

Fig. 41 Coding, example

Mounting

9229 9923 176 0B 37

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Earthing

Fig. 42 Removal of the M10 nut with washer Fig. 43 Removal of the transport bracket

Note

If the 3AK vacuum circuit-br eaker module is installed into an earthed meta l frame

and is connected permanently and electrically conductive, no separate earthing

is required.

Place serrated washers under the screw heads when fastening the vacuum cir-

cuit-breaker module in this case.

Connect the vacuum circuit-breaker module under the

cartridge insert (90.) on the earth termin al (70.) the high-

voltage protective earth as specified (DIN EN 50341).

For this, connection to earth on the system must be

present in the form of a clamp. If the vacuum circuit-

breaker module is moved into the system, the clamp

must positively lock onto the bolt.

Fig. 44 Earth terminal

Mounting

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Fitting the vacuum circuit-breaker module

• Lift the withdrawable section unlocking lever (95.). This draws in the laterally

projecting locking pins (93.).

• Fit the vacuum circuit-breaker module into the system's guide rails and push in

as far as it will go.

• Fully fold the withdrawable section unlocking le ve r (95.) ba ck do wn . The locking

pins (93.) now secure the vacuum circuit-breaker module in the switchgear.

Fig. 45 Fitting the vacuum circuit-breaker module Fig. 46 Locking the vacuum circuit-breaker module

Mounting

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Removing the transport securing device from the undervoltage release

Undervoltage release (Y7)

present? The vacuum circuit-breaker modules with an undervoltage release (Y7) 3AX1103

are supplied with a transport securing device.

• Remove the two top screws (60.2) from the cover (60.1).

• Undo the two bottom screws (60.2) on the co ver (60.1) until the cover (60.1) can

be taken off.

• Slightly tilt the cover (60.1) of the mechanism box and lift off.

• Shift th e locking screw of the striker fr om position A to B (see refer ence note in

mechanism box [60.] of the vacuum circuit-breaker module).

• Replace the cover (60.1) in the reverse order

• and fasten the screws (60.2) with a tightening torque of 10 Nm.

Fig. 47 Removing the cover Fig. 48 Removing the transport securing device

Mounting

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Moving the vacuum circuit-breaker module into operating posi-

tion

Note

When moving, en sure that the vacuu m circuit-bre aker module is in following con-

dition:

• OPEN switching position

• Closing spring discharged

If the switchgear door is locked, the actuating opening

(98.) for manual operation of the withdrawable part (80.)

is enabled.

Moving the withdrawable section with traversing crank

with hand screen 3AX1531-4B:

• Through the actuating opening (98.) Fit traversing

crank with hand screen (108.) onto the hexagon

head.

• Turn clockwise until the position indicator (99.) for

the withdrawable part (80.) switches the symbol

to .

While turning, a progress indicator between these two

symbols indicates the traversing path.

Fig. 49 Moving the vacuum-circuit breaker module

into operating position

Mounting

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Electrical connection of the prime conductor

The main current path is automatically closed by the tulip contacts (21.) when the

withdrawable part withdraws.

For this there must be mating contacts in the switchbay that do not deviate by more

than ±2 mm from the nominal dimensions.

The mating contacts can be purchased from the Siemens Service Center.

DANGER

High-voltage – danger to life

Test the vacuum circuit-breaker module in the switchbay with high-voltage

applied only after faultless functionin g has been ascertaine d (see “Commission -

ing” on page 43).

Note

Grease the mating contacts with contact grease prior to mounting.

Fig. 50 Tulip contacts

Mounting

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Blank page

Operation

9229 9923 176 0B 43

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Operation

Commissioning

Before commissioning, check the following points to ensure that the 3AK vacuum

circuit-breaker module is functioning faultlessly:

DANGER

High voltage – danger to life

Touching live parts causes an electric shock.

• Do not touch live parts!

• Ensure that the vacuum circuit-breaker module is operated only by qualified

personnel who are familiar with the operating instructions and observe the

warning notices.

• Check through all of the items on the checklist and ensure correct functioning

before commissioning.

Checklist Notes

Does the information on the rating plate (see page 27) match the order

data?

Ensure correct operating voltage.

If necessary, clean the vacuum circuit-breaker module (details on this in

section “Cleaning” on page 47).

Check that screw connections are tightened securely.

Check functioning of the auxiliary switches.

If necessary, check and adjust customer's devices.

If there is an undervoltage release (Y7) 3AX1103 : has the locking screw

of the striker been shifted from position A to B (see “Removing the trans-

port securing device from the undervoltage release” on page 39)?

Test switching without supply voltage

Charge the closing spring (62.) with the hand crank (50.) (see Fig. 51),

then actuate the CLOSE pushbutton (53.) and, once closing has been

performed, actuate OPEN pushbutton (54.).

Test switching with supply voltage

To perform test switching with the motor, switch on the supply voltage.

The motor starts up immediately and charges the closing spring (62.).

Check the indicator for charge state of the closing spring (mechanically

and electrically).

Electrically check through auxiliary switch S1 (68.) and position switch

(50.4.1) in both end positions – operate the 3AK vacuum circuit-breaker

module to do so.

Check functioning of the closing solenoid Y9 (53.1) and all available shunt

releases by operating them electrically.

Operation

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First closing operation

If all functions have been checked an d ar e ok, switch o n high- volta ge while obse rv-

ing all of the safety regulations and operative requirements.

Charging the closing spring

If the supply voltage is applied, the closing spring (62.) is automatically charged by

the motor (50. 4) .

Hand crank If the supply voltage fails, the closing spring (62.) can be char ged with a hand cran k

(50.).

1. For this, fit th e hand crank (50.) onto the hand cran k coupling (50.5) throug h the

opening (50.1) with the adapter pushed forward (50.6).

2. Turn clockwise until the spring state indicator (55.) changes over:

WARNING

Do not commission the vacuum circuit-breaker module if there are malfunctions.

If the malfunctions or the damage cannot be remed ied, contact a sales represent-

ative or Siemens Service and, if necessary , send back the vacuum circuit-breaker

module.

WARNING

Risk of injury if hand cranks other than the original hand crank are used.

When the supply voltage is present, the motor immediately recharges the spring

after a closing operation. If the hand crank does not have a slip coupling, the hand

crank will also rotate.

To avoid injuries caused by the motor starting suddenly, the vacuum circuit-

breaker module must be charged only using the original hand crank.



Discharged Charged

Fig. 51 Charging the closing spring with the hand

crank Fig. 52 Operating elements and spring state indicator

Operation

9229 9923 176 0B 45

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The adapter (50.6) of the hand crank (50.) is designed in such a way that the hand

crank becomes un co up le d wh en the motor supply voltage returns.

Closing

Provided there is no lock-out due to a mechanical locking device, send the closing

command via the CLOSE pushbu tton (53.) or the corres ponding command element

until the vacuum circuit-breaker module is closed and shows and signals the

CLOSED position.

Change of the position indicator (59.):

After switching on and possibly releasing the CLOSE pushbutton (53. ), the closing

spring (62.) is immediately automatically charged by the motor and the indicator

“Closing spring charged” (55.) becomes visible.

Change of the spring state indicator (55.):

Opening

The opening spring (64) is charged during the closing operation.

To open, send the opening command via the OPEN pushbutton (54.) or the corre-

sponding command element until the vacuum circuit-breaker module is open and

shows and signals the OPEN switching position.

Change of the posit i on indic at or (59.) after electrical opening:

The spring state indicator (55.) does not change.

Discharging the closing spring

To discharge the closing spring:

• the supply voltage must be deactivated

• the vacuum circuit-breaker module must be closed manually (see “Closing” on

page 45) and then

• opened manually (see “Opening” on page 45).

The spring state indicator (55.) does not change.



OPEN CLOSED



Charged Discharged Charged

Note

If an undervoltage release 3AX1103… is fitted, it must be connected to the control

voltage for switching operations (mechanical or electrical), as otherwise closing

is not possible.



CLOSED OPEN

Operation

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Operating tools

Fig. 53 Operating tools

50. 3AX1530-2B hand crank (optional) for charging the closing spring by hand

106. Operating tool for the earthing switch (manual operation) 3AX1531-3C (optional)

107. Operating tool for the earthing switch (motor operation) 3AX1531-3D (optional)

108. Traversing crank with hand screen for withdrawable part 3AX 1531-4B (optional)

Maintenance

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Maintenance

Maintenance and servicing

Maintenance

The 3AKvacuum circuit-breaker module is maintenance-free under normal operat-

ing conditions. We do, however, recommend you carry out regular visual inspec-

tions. The maximum permitted mechanical operating cycle number is 10 000.

Cleaning

The insulating parts must be clean if their insulating capacity is to be guaranteed.

Rub insulating parts with a moist cloth.

As a cleaning agent, use only warm water with a mild, liquid household detergent

added and leave to dry.

Joints and bearings that cannot be disassembled must not be washed out with a

detergent prior to work.

DANGER

High voltage – danger to life

Touching live parts is fatal or causes serious physical injury.

Before beginning maintenance work, note the five safety rules for high-voltage

equipment specified in EN 50110-1, namely:

• Isolate from the power supply*)

• Secure against reclosing

• Verify safe isolation from the power supply

• Earth and short-circuit

• Cover or cordon off neighbouring live parts

*) On the vacuum circuit-breaker, actuate the OPEN, CLOSE and OPEN pushbut-

tons manually one after the o ther. This ensures that the vacuum circuit-breaker is

open and the closing spring is discharged.

Note

The vacuum circuit-breaker module should be taken out of the switch cabinet or

switchgear for servicing.

Maintenance

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Special operating conditions

If the vacuum circuit-breaker module is operated under unfavourable conditions

indoors (heavy and frequent condensation, dusty air, etc.), we recommend cleaning

the insulating parts and possibly the outer parts of the circuit-breaker at shorter inter-

vals.

For this, only the following agents may be used on the individual functional parts of

the circuit breaker module:

Lubricant:

Lubricants are available from the responsible Siemens representative:

Bearings, sliding surfaces: Isoflex Topas L 32

Bearings and bearings of the auxiliary switch S1

that are inaccessible in terms of greasing: Shell Tellus Oil 32

Order no.

180 g Isoflex Topas L 32 3AX11 33-3H

1 kg Shell Tellus Oil 32 (special oil) 3AX11 33-2D

1kg Isoflex Topas L32 3AX11 33-3E

Maintenance

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Fig. 54 Be ar ing s an d slid ing sur faces of the operating mechanism

Isoflex Topas L 32 Shell Tellus Oil 32

a Crankpin for sensing device actuation b Bearing for deflection lever

c Curve contour f Auxiliary switch

d Close-latch j Circuit-breaker shaft bearing

e Deflection of auxiliary switch p Opening spring bearing

g Opening spring guide r Spring eyelet on closing spring

h Deflection of auxiliary switch

kOPEN-latch

l Curve for OPEN-latch

m End stop

s Contact area of instantaneous release

Maintenance

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Vacuum interrupter service life

If switching operations occur frequently under overload or short circuit, the service

life of the vacuum interrupters may be reached prematurely.

Replace the interrupters after reaching the maximum permitted operating cycle

number of 10 000 mechanical or electrical loa d setting changes (up to the rated cur-

rent).

When ordering vacuum interrupters, please always state the circuit-breaker type

and serial number (see“Rating plate” on page 27).

Accessories and spare parts

Replacing spare parts To ensure that the device operates reliably, spare parts must be replaced only by

trained and certified personnel.

Fig. 55 Acce ssories availabl e for orde r

Always specify the vacuum circuit-breaker module's type and serial no . (see “Rating

plate” on page 27) when ordering spare parts.

CAUTION

Risk of injury!

The vacuum circuit-breaker module should be taken out of the switch cabinet or

switchgear for servicing.

Separate vacuum circuit-breaker module from the control feed voltage or switch

it off and disconnect the low-voltage plug or clip connection.

Accessories Order no.

Hand crank for circuit-breaker 3AX1530-2B

Traversing crank with hand shield for withdrawable part 3AX1430-2C

Operating instructions 9229 9923 100

Operating tool for the earthing switch (manual operation) 3AX1531-3C

Operating tool for the earthing switch (motor operation) 3AX1531-3D

Klüber lsoflex Topas L32 lubricant 3AX1133-3H 180 g

3AX1133-3E 1 kg

Shell Tellus lubricant 3AXl 133-2D 1 kg tin

Maintenance

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Manufacturer's product liability

The manufacturer's product liability shall be excluded if at least one of the following

criteria applies:

• Original Siemens spare parts are not used.

• Fitters carrying out replacements have not been trained and certified by Sie-

mens.

• Parts have been incorrectly fitted or adjusted.

• Adjustments are not made in accordance with Siemens specifications.

• After installation and adjustment, no final test is performed with a tester

approved by Siemens including documentation of the test results.

To keep documentation complete, it is important that measu rement results are sub-

mitted to the responsible sales representative.

Disposal

The materials of the vacuum circuit-breaker module should be recycled. Disposal o f

the vacuum circui t-breake r modu le with minimu m environ mental impa ct is possible

on the basis of existing legal regulations.

Metal The circuit bre aker's metal componen ts can be recycled as mixed scrap, althoug h it

is more environmentally sustainable to dismantle the unit as th or oughly as p ossi ble

into sorted scrap and residual mixed scrap.

Electronics Electronic scrap must be disposed of in accordance with applicable regulations.

Materials The vacuum circuit-breaker module consists of the following materials:

• Steel (partly phosphatised, galvanised and yellow chromated)

• Copper (partly silver-plated)

• Plastics (epoxy resin, polyamide, polyester, polycarbonate, ABS-PC mixture;

partly glass fibre reinforced)

• Rubber materials

•Ceramics

•Lubricant

Packaging If the packaging is no longer needed, it can be fully recycled.

Hazardous substances When delivered by Siemens, the product does not contain any hazardous sub-

stances within the scope of the Hazardous Substances Ordnance applicable to the

territory of the Federal Republic of Germany. For operation outside the Federal

Republic of Germany, the applicable local laws and regulations must be complied

with.

Further information Contact your Siemens Service Center if you require further information.

Service

For details of contacts for service work, consult Siemens IC LMV SE Services at

• Telephone: +49 180/5247000

• Fax: +49 180/5242471 or

• on the Internet at the Web address: www.siemens.com/energy-support

• by e-mail: support.energy@siemens.com

• or any local sales representative.

Maintenance

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Index of keywords
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Index of keywords
A
Accessories ...........................................................  50
Accessories available for order .............................  50
Accessory pack .......................................................  8
Actuating opening .................................................  40
Altitude correction factor .......................................  28
Ambient conditions ................................................  28
Auxiliary switch .............................................  16–  17
Auxiliary switch S1 ................................................  20
B
Basic equipment ...................................................  17
Bearings and sliding surfaces ...............................  49
Break contact ........................................................  14
Breaking capacity ..................................................  20
C
Cartridge insert .....................................  13–  14,   37
Circuit-breaker shaft ..............................................  16
Circuit-breaker tripping signal .......................  17,   21
Climate classes .....................................................  28
CLOSE pushbutton  ...............................................  15
Closing damper .....................................................  16
Closing solenoid ....................................  16–  17,   19
Closing spring ...............................................  16,   25
Coding ...................................................................  14
Contact stroke .......................................................  14
Contact system .....................................................  14
Contactor relay ..............................................  16–  17
Contactor relay K1 ................................................  18
Coupling of the earthing switch drive ....................  14
Cover ....................................................................  15
Cut-out switch ...............................................  17,   21
D
Dashpot .................................................................  16
Disconnected position ...........................................  25
Distance between pole centres .............................  27
E
Earth terminal ................................................  14,   37
Earthing switch, actuating opening for 
manual operation ..................................................  13
Earthing switch, position indicator .........................  13
Electrical manual closing ..............................  17,   25
F
Factory number .....................................................  27
Fitting the circuit-breaker withdrawable section ....  38
G
Gear unit ...............................................................  16
H
Hand crank ....................................................  44,   46
Hand crank coupling .............................................  16
Hand crank, opening .............................................  15
Heater (condensation water protection)   16–  17,   25
High-voltage protective earth ................................  37
I
Indication of the operating and disconnected 
position of the withdrawable part .................... ... ....   13
Installation altitudes ..................... ... ... ... .... .............  28
Insulating capacity ............. ... .................................  28
Interrupter ..............................................................  14
Interrupter support .......................... ... ... .... ... ..........  14
Interrupter, service life ...........................................  50
Interrupter, vacuum check .................... .... ... ... .......  50
L
Locking bracket .............. .......................................  13
Locking device for the actuating openings 
(optional) ...................... ... ... ... .... ... ... ... ....................  26
Locking devices .....................................................  25
Locking pin ...........................................  13–  14,   38
Locking the withdrawable section ................ ... ... ....  26
Low-voltage interface .................. ... ... ... .... ... .   17,   22
Low-voltage plug ...................... ... ..........................  14
M
Mating contacts ........... ... ... ... .... ... ... ... ....................  41
Mechanical anti-pumping device ................. ... ... ....   17
Mechanical locking device ........... ... ... ... .... .............  17
Mechanical manual closing .. .... ....................   17,   25
Mechanical manual opening ..................................  17
Mechanism box .................... .... ... ... ..............   13,   16
Motor ............................................................   16–  18
Mounting position ........ ..........................................  35
Mounting rail ...................... ...........................   13–  14
Moving the circuit-breaker withdrawable 
section into operating position .............. .... ... ... ... ....  40
O
OPEN pushbutton ..................................................  15
Opening spring ........ .... ... .......................................  16
Operating and disconnected position, indicator .....  13
Operating cycle counter ........................ .... ... .   15–  17
Operating position .......................... ... ... .... ... ... .......  25
Operating rod ........ ... .... ... ... ... .... ... ..........................  16
Operating tool ....................... .... ... ..........................  46
Operating tool, earthing switch 
(manual operation) ............... .... ... ... .......................  46
Operating tool, earthing switch (motor operation) .  46
P
Pole assembly ............. ... ... ....................................  13
Pole plate ................. .... .................................   13–  14
Position indicator CLOSED-OPEN ........... ... .   15–  16
position indicator for the withdrawable part ...........  40
Position indicator of the earthing switch ................  13
Position switch ......................................   16–  17,   21
Priority opening ............... ... ....................................  17
R
Range of application .......................... ... .... ... ... .......  11
Rated frequency ................ ... .... ... ..........................  27
Rated lightning impulse withstand voltage ............  27
Rated operating current ..................... ... .................  27

Index of keywords
54 9229 9923 176 0B
2013-09-09
Rated operating sequence ......................... .... ... ... .  27
Rated power frequency withstand voltage ............  27
Rated short-circuit breaking current ......................  27
Rated short-circuit duration .................. ... ..............  27
Rated voltage .......................... ... ... .... ... .................  27
Rating plate ...........................................  13,   15,   27
S
Scope of delivery ........................ ...........................  12
Shunt release ...............................   16–  17,   19,   23
Spring state indicator .............. ... ... .... ... ... ... ...  15–  16
Standards .......................... ... ... ... ... .... ... .................  12
T
Transformer-operated release ..............  16–  17,   23
Transformer-operated release (0.1 Ws) ................  16
Transport weig h t .....................................................  5
Transporta tio n ey e  .. ... ... ........................................  13
Traversing crank for withdrawable part .................  46
Traversing crank with hand screen 3AX1430-2C ..  40
Tulip contact s ... .... ... ..............................................  41
Type designation ..... ... ...........................................  27
U
Undervoltage release ............................  16–  17,   24
Unlocking lever of the cartridge insert ...................  13
V
Vacuum interrupter, contact system ......................  14
W
Withdrawable part ...... ... .... ... ... ..............................  14
Withdrawable part of the cartridge insert .......... ... .  13
Withdraw ab le pa rt , act ua tin g op e nin g fo r 
manual operation .................... ... ... .... ... ... ... ...........  13
Withdrawable part, indication of the operating 
and disconnected position ................. ... ... ... ...........  13
Withdraw ab le se ctio n un lockin g lever ...................  38

Legend for all pages

9229 9923 176 0B 55

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Legend for all pages

15. Pole plate

16.1 Upper post insulator

16.2 Lower post insulator

19. Pole assembly, complete

20. Upper interrupter support

21. Break contact

23. Pole column

26. Earth terminal

27. Upper terminal

29. Lower terminal

30. Interrupter

40. Lower interrupter support

48. Insulating operating rod

50. Hand crank for circuit-breaker 3AX1530-2B

(optional)

50.1 Opening for hand crank for charging the clos-

ing spring

50.2 Gear unit

50.4 Motor M1

50.4.1 Position switch

50.5 Hand crank coupling

50.6 Hand crank adapter

51. Rating plate

51.1 Opening for rating plate

53. CLOSE pushbutton

53.1 Closing solenoid Y9

54. OPEN pu sh bu tt on

54.1 Shunt release Y1

54.2 Shunt release Y2

54.3 Transformer-operated release Y4

54.4 Undervoltage release Y7

54.5 Transformer-operated release (0.1 Ws) Y6

55. Spring state indicator

55.1 Opening for spring state indicator

58. Operating cycle counter

58.1 Opening for operating cycle counter

59. Position indicator CLOSED-OPEN

59.1 Opening for position indicator CLOSED-OPEN

60. Mechanism box

60.1 Cover

60.3 Transportation eye

61. Dashpot

62. Closing spring

63. Ci rcu it- br ea ke r sh aft

64. Opening spring

66. Closing damper

68. Auxiliary switch S1 (6NO+6NC)

68.0.1 Extended auxiliary switch S1 (12NO + 12NC)

68.1 Operating rod (for auxiliary switch S1)

68.7 Automatically coupling low-voltage plug

69. Contactor relay K1

70. Earth terminal

71. Heater R01 (condensation water protection)

72. Spring charge release

72.1 Lever of the spring charge release

80. Withdrawabl e part

81. Locking bracket

84. Mounting rail

87. Coding

90. Cartridge insert

93. Locking pin

95. Unlocking lever of the cartridge insert

96. Actuating opening for manually operating the

earthing switch (optional)

97. Position indicator of the earthing switch

(optional)

98. Actuating opening for manually operating the

withdrawable part

99. Indication of the operating and disconnected

position of the withdrawable part

102. Locking magnet Y8 (optional)

103. Locking magnet Y10 (optional)

106. Operating tool for the earthing switch (manual

operation) 3AX1531-3C (optional)

107. Operating tool for the earthing switch (motor

operation) 3AX1531-3D (optional)

108. Traversing crank with hand screen for discon-

necting component 3AX 1531-4B (optional)

109. Coupling of the earthing switch drive

Published by

Siemens AG

Infrastructure & Cities Sector

Low and Medium Voltage Division

Medium Voltage & Systems

Schaltwerk Berlin

Nonnendammallee 104

13629 Berlin