manual del interruptor abb calor emag en vacio vm1

8/9/2019 Manual Del Interruptor ABB CALOR EMAG en Vacio VM1

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VM1

Vacuum circuit-breaker

with magnetic actuator mechanism

Instruction manual BA 433/07 E


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Ihre Sicherheit hat Vorrang immer!Your safety first always!

Only install switchgear and/or switchboards in enclosed rooms suitable for

electrical equipment.

Ensure that installation, operation and maintenance are carried out by

specialist electricians only.

Comply in full with the legally recognized standards (DIN VDE / IEC), the

connection conditions of the local electrical utility and the applicable safetyat work regulations.

Observe the relevant information in the instruction manual for all actions

involving switchgear and switchboards.

Danger!

Pay special attention to the hazard notes in the instruction manual marked with

this warning symbol.

Make sure that under operation condition of the switchgear or switchboardthe specified data are not exceeded.

Keep the instruction manual accessible to all persons concerned with

installation, operation and maintenance.

The users personnel are to act responsibly in all matters affecting safety at

work and the correct handling of the switchgear.

If you have any further questions on this instruction manual, the members of ourfield organization will be pleased to provide the required information.

That's why our instruction manual begins with these recommendations:

WARNUNGAnerkannte Regeln der Technik und Betriebsanleitungen

beachten !

Gefhrliche Spannung

kann elektrischen Schock und Verbrennungen verursachen.

Vor Aufnahme von Arbeiten jeder Art dieses Gert unbedingt freischalten,

erden und kurzschlieen.

WARNINGAlways observe the instruction manual and follow the rules

of good engineering practice !

Hazardous voltage

can cause electrical shock and burns.

Disconnect power, then earth and short-circuit before proceeding

with any work on this equipment.


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4

Contents Page

1 Summary 5

1.1 General 5

1.2 Standards and specifications 5

1.2.1 Switchgear manufacture 5

1.2.2 Installation and operation 5

1.3 Operating conditions 5

1.3.1 Normal operating conditions 5

1.3.2 Special operating conditions 5

2 Technical data 6

2.1 Technical data

circuit-breaker 6

2.2 Technical data

control electronics 7

2.3 Technical dataAC/DC converter 8

2.4 Permissible number of switching

operations of the vacuum interrupters

in relation to breaking current 8

2.5 Dimensions 12

3 Structure and function 14

3.1 Structure of the breaker poles 14

3.2 Structure of the operating mechanism 14

3.2.1 Structure of the control module 14

3.2.2 Storage capacitor 14

3.2.3 Sensor system 14

3.2.4 Ready lamp 16

3.2.5 Mounting the VM1 on a withdrawable

assembly from another manufacturer 16

3.3 Function 16

3.3.1 Magnetic actuator 16

3.3.2 Circuit-breaker controller 16

3.3.3 Opening and closing procedure 17

Contents Page

3.3.4 Autoreclosing sequence 17

3.3.5 Quenching principle of the

vacuum interrupter 17

3.3.6 10 - pole plug-in terminal strip 17

4 Transport and storage 20

4.1 Condition on delivery 20

4.2 Packaging 20

4.3 Transport 20

4.4 Delivery 20

4.5 Intermediate storage 20

5 Installation 21

6 Commissioning / operation 21

6.1 Notes on safety at work 21

6.2 Preparatory work 21

6.3 Circuit-breaker operation 22

7 Maintenance 23

7.1 General 23

7.2 Inspection and functional testing 23

7.2.1 Switching device in general 23

7.2.2 Magnetic actuator operating mechanism 23

7.3 Maintenance 24

7.3.1 Switching device in general 24

7.3.2 Magnetic actuator operating mechanism 24

7.3.3 Breaker pole 24

7.4 Repair 25

7.4.1 Replacement of breaker parts

and accessories 25

7.4.2 Touching up surfaces 25

7.5 Spare parts and auxiliary materials 26

7.5.1 Spare parts 26

7.5.2 Auxiliary materials 27

8 Application of the X-ray regulations 27

We reserve all rights to this publication. Misuse, particularly including duplication and making available of this manual or extracts to third parties is prohibited. The information supplied is without liability. Subject to alteration.

ABB Calor Emag Mittelspannung GmbH, 2001


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1 Summary

1.1 General

(Figures 2/1 and 2/2)

The vacuum circuit-breakers of type VM1 are inten-

ded for indoor installation in air-insulated switch-

gear. Within the limits of their technical data, they

have a switching capacity which is sufficient to

withstand the loads occurring during the switchingon and off of equipment and switchgear com-

ponents under normal and fault conditions.

Vacuum circuit-breakers have particular advantages

for use in systems where the switching frequency in

the operating current range is high, and/or where a

certain number of short-circuit breaking operations

have to be reckoned with. Vacuum circuit-breakers

of type VM1 are prepared for autoreclosing opera-

tions and are notable for their especially high

operational reliability and extremely long service life

with complete freedom from maintenance.

The vacuum circuit-breakers of type VM1 in column

design can be supplied both as individual units for

stationary mounting and mounted on trucks.

1.2 Standards and specifications

1.2.1 Switchgear manufacture

The switchgear complies with the following speci-

fications in accordance with DIN VDE and the

relevant IEC publications:

VDE 0670, Part 1000 and IEC 60694

DIN VDE 0670, Part 104, and IEC 60056

DIN VDE 0847, Part 4, and IEC 61000-4.

1.2.2 Installation and operation

The relevant specifications are to be taken into

account during installation and operation,

particularly:

DIN VDE 0101, Power installations exceeding

AC 1 kV

DIN VDE 0100-410, Erection of power

installations up to 1000 V, protective measures VDE 0105, Operation of electrical installations

DIN VDE 0141, Earthing systems for special

power installations with rated voltages above 1 kV

Accident prevention regulations issued by the

appropriate professional bodies or comparable

organisations.

In Germany, these comprise the following safety

regulations:

Health and Safety at Work Standards BGV A1

and BGV A2

Safety guidelines for auxiliary and operatingmaterials

Order related details provided by ABB Calor

Emag.

1.3 Operating conditions

1.3.1 Normal operating conditions

Design to VDE 0670, part 1000, "Common

specifications for high-voltage switchgear and

controlgear standards and IEC publication 60694,

with the following limit values:

Ambient temperature:

Maximum + 40C

Maximum 24 hour average + 35C

Minimum (according to

minus 25 indoor class) 25C

Humidity

the average value of the relative

humidity, measured over a

period of 24 h, does not exceed 95%

the average value of the water

vapour pressure, over a period

of 24 h, does not exceed 2.2 kPa

the average value of the relative

humidity, over a period of

one month, does not exceed 90%

the average value of the water

vapour pressure, over a period

of one month, does not exceed 1.8 kPa

Maximum site altitude:

1000 m above sea level.

1.3.2 Special operating conditionsSpecial operating conditions are to be agreed on by

the manufacturer and user. The manufacturer must

be consulted in advance about each special

operating condition:

Site altitude over 1000 m:

Allow for the reduction in the dielectric

strength of the air.

Increased ambient temperature:

Current carrying capacity is reduced.

Provide additional ventilation for heatdissipation.

Climate:

Avoid the risk of corrosion or other damage,

e.g. to the operating mechanisms, in areas:

with high humidity and/or

with major rapid temperature fluctuations.

Implement preventive measures (e.g. electric

heaters) to preclude condensation pheno-

mena.


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Breaker Rated Rated Rated short- Short- Rated short- Rated short- Pole Weight2)

type voltage current circuit circuit circuit circuit centresbreaking breaking making durationcurrent current current

symm.1) asymm.1) (peak)1)

VM1... kV A kA kA kA s mm approx. kg

1206-16 12 630 16 17.4 40 3 150/210 90/951212-16 1250 150/210 90/95

1206-20 630 20 21.8 50 3 150/210 90/951212-20 1250 150/210 90/95

1206-25 630 25 27.3 63 3 150/210 90/951212-25 1250 150/210 90/951216-25 1600 210/275 135/140

1220-25 2000 210/275 135/1401225-25 2500 275 146

1206-31 630 31.5 34.3 80 3 150/210 97/1021212-31 1250 150/210 97/102

1216-31 1600 210/275 135/1401220-31 2000 210/275 135/140

1225-31 2500 275 146

1212-40 1250 40 43.6 100 3 210 1351216-40 1600 210/275 135/1421220-40 2000 210/275 135/1421225-40 2500 210/275 141/148

1706-16 17.5 630 16 17.4 40 3 150/210 90/951712-16 1250 150/210 90/95

1706-20 630 20 21.8 50 3 150/210 90/951712-20 1250 150/210 90/951716-20 1600 210/275 135/1401720-20 2000 210/275 135/1401725-20 2500 275 146

1706-25 630 25 27.3 63 3 150/210 90/951712-25 1250 150/210 90/951716-25 1600 210/275 135/1401720-25 2000 210/275 135/1401725-25 2500 275 146

1706-31 630 31.5 34.3 80 3 150/210 97/1021712-31 1250 150/210 97/1021716-31 1600 275 1421720-31 2000 275 1421725-31 2500 275 148

2406-16 24 630 16 17.4 40 3 210/275 100/1052412-16 1250 210/275 100/1052416-16 1600 275 1452420-16 2000 275 145

2406-20 630 20 21.8 50 3 210/275 100/1052412-20 1250 210/275 100/105

2416-20 1600 275 1452420-20 2000 275 145

2406-25 630 25 27.3 63 3 210/275 100/105

2412-25 1250 210/275 100/1052416-25 1600 275 145

2420-25 2000 275 1452425-25 2500 275 151

2 Technical data

2.1 Technical dataCircuit-breakers

1) At operating voltages lower than the rated voltage, the same values fundamentally apply

as for the rated voltage. Higher values on request.2) Individual unit without truck


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Guideline values for function times:

Closing time approx. 45...60 ms

Opening time approx. 35...45 ms

Arcing time (at 50 Hz) 15 ms

Break time 50 ms

Minimum command time on closing 20 ms

Minimum command time on opening 20 ms

Rated voltage kV 12 17.5 24

Rated frequency Hz 50/60 50/60 50/60

Rated lightning impulse withstand voltage kV 75 95 125

Rated power frequency withstand voltage kV 28 38 50

Rated of rise of transient recovery voltage kV/ s 0.34 0.42 0.47

Peak transient recovery voltage kV 20.6 30 41

Rated operating sequence O-3min-CO-3min-CO

Rated operating sequence for autoreclosing O-0.3s-CO-3min-CO

2.2 Technical data

Control electronics

a) Binary inputs

The following applies to all 5 input channels:

Electrical isolation from the electronics:

2.0 kV AC

Electrical isolation between the inputs:

2.0 kV AC

Input voltage: max. 260 V AC/DC

AC/DC operation (any polarity for DC)

Response range: 48 to 250 V AC/DC

Base load at input1): 300 k

Current consumption:

< 2 mA at 250 V AC/DC

Inputs protected from voltage surges.

b) Binary outputs

The following applies to all 5 output channels:

Electrical isolation from the electronics:

2.0 kV AC

Electrical isolation between the outputs:

2.0 kV AC

Switching voltage:

max. 400 V DC or 280 V AC

Switching current: max. 0.5 A AC/DC

On resistance: 2.1 (3.2 max.)

Off resistance: > 1000 M

Switch outputs: NOC, NCC and fleetingcontact

Duration of fleeting contact pulse: 40 ms

Output connections: varistors.

1) In general, with AC signals which are connected via long

lines, it should be checked whether the installed base load

of 300 k is sufficient (mutual capacitive coupling!) to

ensure a reliably low interference level. Otherwise, anappropriately dimensioned resistor or capacitor is to be

connected in parallel at the input terminals.


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2.3 Technical data

AC/DC converter

Input voltage ranges, optional:

Power pack A:

24 V 15% ...48 V +15%AC

24 V 15% ...60 V +15%DC

Power pack B:

110 V 15% ...240 V +10%AC/DC

Protection of power feed (must be ordered):

Power pack A:

ABB Stotz m.c.b.:

S 282 UC-K, 1,6 A

Power pack B:

ABB Stotz m.c.b.:

S 282 UC-K, 1,0 A

Power consumption on the input side during a

charging process: ca. 100 W

Power consumption in normal position: 4 W

2.4 Permissible number of switching operations of the vacuum interrupters in relation to breaking current

See figures 2/3 and 2/6.

Figure 2/2: Vacuum circuit-breaker, type VM1

for 12 kV and rated current 1250 A,

pole side.

Figure 2/1: Vacuum circuit-breaker, type VM1

for 12 kV and rated current 1250 A,

mechanism side.

Charging times of the capacitor (example for DC

voltage):

a) Initial charging on commissioning:

Power pack A: 8 50 s

Power pack B: 8 60 s

depending on the supply voltage.

In this time, the capacitor(s) is/are charged to

80 V, and an ON-OFF operating cycle isalready possible at 72 V (the Ready lamp

indicates readiness for switching).

b) Recharging after a switching operation to a

charge of 80 V:

Max. supply voltage:

Power pack A: < 2.5 s

Power pack B: < 2.5 s

Min. supply voltage:

Power pack A: < 3 sPower pack B: < 3 s.


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9

a) Breakers of type VM1:

12 kV, 630 A, 25 kA

12/17,5 kV, 1250 A, 25 kA 17,5 kV, 630 A, 20 kA

Breaking current la (kA)

0,05

5

0 ,1 0 ,2 0 ,3 0, 4 0 ,5 0 ,6 0, 8 1

678

10

2

3

4

5

678

102

2

3

4

5

678

103

2

3

4

5

678

4

2

3

45

678

105

2 3 4 5 6 7 8 1 09 20 30 40 50

10

Numberofoperatingcyclesn

Rated current:

1250 A

630 A


0,05

5

0 ,1 0 ,2 0 ,3 0, 4 0 ,5 0 ,6 0 ,8 1

678

10

2

3

4

5

678

102

2

3

4

5

678

103

2

3

4

5

678

4

2

3

45

678

105

2 3 4 5 6 7 8 1 09 20 30 40 50

10


Rated current:

1250 A

630 A

Figure 2/3 B: Permissible number of vacuum interrupteroperating cycles n as a function of the breaking current Ia.

b) Breakers of type VM1, 12/17.5 kV, 630/1250 A, 31.5 kA

0,05

5

0, 1 0, 2 0 ,3 0, 4 0, 5 0 ,6 0 ,8 1

678

10

2

3

4

5

678

102

2

3

4

5

678

103

2

3

4

5

678

4

2

3

4

5

678

105

2 3 4 5 6 7 8 1 09 20 30 40 50

10


Numberof

operatingcyclesn

Ratedcurrent:

630 A

1,5

a) Breakers of type VM1

12 kV, 630 A, 20 kA

17,5 kV, 630 A, 16 kA

Figure 2/3 A: Permissible number of vacuum interrupter operating cycles as a function of the breaking cuurent Ia.

0,05

5

0, 1 0, 2 0 ,3 0, 4 0, 5 0 ,6 0, 8 1

678

10

2

3

4

5

678

102

2

3

4

5

678

103

2

3

4

5

678

4

2

3

4

5

678

105

2 3 4 5 6 7 8 1 09 20 30 40 50

10


Numberof

operatingcyclesn

Ratedcurrent:

630 A

1,5

b) Breakers of type VM1, 24 kV, 630 A, 16 kA

Permissible number of vacuum interrupter operating cycles


10/28

10


0,05

5

0,1 0,2 0,3 0,4 0,5 0,6 0,8 1

678

10

2

3

4

5

678

102

2

3

4

5

678

103

2

3

4

5

678

4

2

3

4

5

678

105

2 3 4 5 6 7 8 109 20 30 40 50

10

Numberofo

peratingcyclesn

Rated current:

1250 A

630 A

Figure 2/4: Vacuum circuit-breaker, type VM1, high-current for 12 kVand rated current 1600...2000 A, mechanism side.

Figure 2/5: Vacuum circuit-breaker, type VM1, high-current for 12 kVand rated current1600...2000 A, pole side.

c) Breakers of type VM1, 24 kV:

24 kV, 630 A, 20/25 kA

24 kV, 1250 A; 25 kA

Figure 2/3 B: Permissible number of vacuum interrupteroperating cycles n as a function of the breaking current Ia.


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11


2500 A

1600 A

0,05

5

0,1 0,2 0,3 0,4 0,5 0,6 0,8 1

678

10

2

3

4

5

678

102

2

3

4

5

678

103

2

3

4

5

678

4

2

3

4

5

678

105

2 3 4 5 6 7 8 109 20 30 40 50

10

Numberofop

eratingcyclesn

Rated current:

2000 A

1600 A

2500 A


0,05

5

0,1 0,2 0,3 0,4 0,5 0,6 0,8 1

678

10

2

3

4

5

678

102

2

3

4

5

678

103

2

3

4

5

678

4

2

3

4

5

678

105

2 3 4 5 6 7 8 109 20 30 40 50

10

Numberofop

eratingcyclesn

Rated current:

2000 A

1600 A

2500 A


1600 A

0,05

5

0 ,1 0 ,2 0, 3 0 ,4 0 ,5 0 ,6 0 ,8 1

678

10

2

3

4

5

678

102

2

3

4

5

678

103

2

3

4

5

678

4

2

3

45

678

105

2 3 4 5 6 7 8 109 20 30 40 50

10


Rated current:

2000 A

2500 A

1250 A

Figure 2/6: Permissible number of vacuum interrupteroperating cycles n as a function of the breaking current Ia.


2500 A

1600 A

0,05

5

0 ,1 0 ,2 0 ,3 0, 4 0 ,5 0 ,6 0 ,8 1

678

10

2

3

4

5

678

102

2

3

4

5

678

103

2

3

4

5

678

4

2

3

45

678

105

2 3 4 5 6 7 8 109 20 30 40 50

10


Rated current:

2000 A1600 A

2500 A

b) Breakers of type VM1, high-current, 12/17.5 kV, 1600 A, 31.5 kAa) Breakers of type VM1, high-current, 12/17.5 kV, 1600 A, 25 kA

c) Breakers of type VM1, high-current, 12 kV, 1250 A, 40 kA d) Breakers of type VM1, high-current, 24 kV, 1600 A, 25 kA


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Rated Rated Rated short-

voltage current circuit

breaking

current

kV A kA p a a1

c d f

12 630/ ... 31.5 150 450 395 400 450 160

1250 210 570 515 520 570 220

17.5 630/ ... 31.5 150 450 395 400 450 1601250 210 570 515 520 570 220

Figure 2/7: Dimensional drawing of circuit-breaker type VM1,

12 kV, 630 A and 1250 A, ... 31.5 kA

17.5 kV, 630 A and 1250 A, ... 31.5 kA.

Rated Rated Rated short-

voltage current circuit

breaking

current

kV A kA p a a1

c d f

24 630/ ... 25 210 570 515 520 570 220

1250 275 750 695 700 750 205

Figure 2/8: Dimensional drawing of circuit-breaker type VM1,

24 kV, 630 A and 1250 A, ... 25 kA.

K = Cable entry

T = Handling bores, both sides

A = View "A"

GA = Tested terminal zone

M = Minimum distance to DIN VDE 0101

A1 = Terminal for 630 A


A4 = Terminal bar to DIN 46 433,

for 17.5 kV shrink sleeve fitted

= Earthing conductor terminal, use contact washer

K = Cable entryT = Handling bore, both sides

A = View "A"






for 24 kV shrink sleeve fitted


461

25 345

409

a1

a

35

c

433

M12

d

p p 95

205

217,

5

77

,5

M

M12

424

4444

24

60

368

48030

100

550

474,

5

KT

30

A""

40(50)

M M

200

200

M M

M12

24

A4

GA

f

AA1M12Insertion depth18 +2

A2M10Insertion depth15 +1

45

22

22

f

631

345

409

a1

a

c

433

M12

d

p p 95

310

282,

5

77,

5

M

M12

424

4444

24

60

368

48030

100

550

474,5

KT

30

40(50)

A

M M

200

200

M M

M12

24

A4

45

22

22

25

35

A""

GA

A1M12Insertiondepth 18+2

A2M10

Insertiondepth 15+1

A1

M12

Insertiondepth 18+2

A2

M10

Insertion

depth 15+1

2.5 Dimensions


13/28

13

Rated Rated Rated

voltage current short-

circuit

breaking

current

kV A kA p a a1

c d f

24 ... 25001) ... 25 275 750 695 700 750 545

Rated Rated Rated

voltage current short-

circuit-

breaking

current

kV A kA p a a1

c d f g h

12 ... 2500 1) ... 40 210 610 555 560 600 405 320 20

275 750 695 700 750 545 345 25

17.5 ... 2500 1) ... 31.5 210 610 555 560 600 405 320 20

275 750 695 700 750 545 345 25

H = Emergency manual opening lever

K = Cable entry


A = View A

GA = Tested terminal zoneM = Minimum distance to DIN VDE 0101

A1 = Terminal for contact arm

A2 = Terminal for connecting bar


for 17.5 kV shrink sleeve fitted


Figure 2/9: Dimensional drawing of circuit-breaker type VM1,high-current.

12 kV, 2500 A , ... 40 kA

17.5 kV, 2500 A , ... 31.5 kA.

Figure 2/10: Dimensional drawing of circuit-breaker type VM1,high-current, 24 kV, ...2500 A, ... 25 kA.

H = Emergency manual opening lever

K = Cable entry


A = View A



A1 = Terminal for contact arm

A2 = Terminal for connecting bar

A4 = Terminal bar to DIN 46 433,for 24 kV shrink sleeve fitted


616

599

h

424

200

M12

M M

f

24

M M

2

00

A4

80

A1

M10

15

12

12

20 2020

20

a1

a

35

c

433

M12

d

p p 95

310

237,5

77,5

M

M12

428

530

67030

100

550

400

3564

75

KT H

GA

A2M12

18

A""

+1

+2

1)

616

599

h

200

M12

M M

f

24

M M

2

00

A4

80

A1

M10

15

12

12

20 2020

20

a1

a

35

c

433

M12

d

p p 95

310

237,5

77,5

M12

530

67030

100

550

400

3564

75

KT H

GA

A2M12

18

A""

+1

+2

1)

e

200

M12

M M

24

A1

M10Insertion depth15

12

12

20 2020

20

24

A2M12Insertion depth18

+1

+2

385

200

M12

M M

24

12

A

12

20 2020

20

44

50

+1

+2

1)

661

642

424

M M

A4

KT H

200

M12 f

24

M M

200

80


1

2

A

12

20 2020

20

a1

a

35

c

433

25

M12

d

p p 95

310

282,5

77,5

M

M12

345

428

44

24

50

530

67030

100

550

400

3564

75

GA


A""

+1

+2

1)1)

1)

385

1)Breakers with rated currents 2500 A are fitted with a heat sink.

1)

Breakers with rated currents 2500 A are fitted with a heat sink.


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14

3 Structure and function

3.1 Structure of the breaker poles

(Figures 2/2, 2/5 and 3/2)

The poles in column design are mounted on the

bracket-shaped rear part of mechanism enclosure 1.

The live parts of the breaker poles are enclosed in

cast resin and protected from impacts and other

external influences.With the breaker closed, the current path leads

from the upper breaker terminal 25 to the fixed

contact 24.2 in the vacuum interrupter 24, then via

the moving contact 24.1 and the flexible connector

21 to the lower breaker terminal 22.

The switching motions are effected by means of

the insulated link rod 19 with internal contact force

springs 20.

3.2 Structure of the operating mechanism

(Figures 3/1 to 3/4)

The operating mechanism is of the magnetic type.

It fundamentally consists of the magnetic actuator

10, the control module 27 with sensor systems, the

storage capacitor(s) 26 and the linkages which

transmit the force to the breaker poles.

In addition, there are supplementary components

for emergency manual opening and the controls

located on the front of the enclosure.

The actuator 10 acts on the three breaker poles via

lever shaft 18. The storage capacitor 26 provides

the necessary actuating energy on demand.

The mechanical switch positions of the circuit-breaker are detected by two sensors 15 and 16

directly at lever shaft 18.

There are rating plates with the main data of the

switching device on front plate 1.1, and at the left

side in the mechanism enclosure.

The basic version of the magnetic actuator

mechanism is fitted with the following controls and

instruments:

ON push-button 3

OFF push-button 4

Emergency manual OFF 8

Mechanical position indicator 6

Mechanical operating cycle counter 5

Signal lamp for switching readiness 2 (READY

LED).

The following may also be installed:

Two/five-pole auxiliary switch for switch position

signal: -S3 and -S5.

3.2.1 Structure of the control module


The control module consists of 2 circuit boards:

1. AC/DC converter (upper board)

The AC/DC converter produces a voltage of

80 V from any supply voltage within the

input voltage range, with which the storage

capacitor(s) is/are charged. This is also used to

generate a voltage of 12 V to supply the breaker

controller.

The power supply sockets are located on this

board.

2. Breaker controller (lower board)

This consists of:

the logic module,

electronic optocouplers for input,

photo-MOS relays for output,

power electronics to control the actuator

coils,

sockets for control and signals.

The plug connector technology ensures safe

and trouble-free wiring.

3.2.2 Storage capacitor


The energy for operation of the circuit-breaker is

stored electrically in a capacitor. Circuit-breakers

for breaking currents of 31.5 kA and above are

fitted with two capacitors. The capacitors are rated

to provide the energy for an OFF-ON-OFF

operating cycle without recharging.

The energy stored by the capacitor is permanently

monitored. This is achieved by measuring the

capacitor voltage.

The "Ready" lamp indicates that supply voltage isapplied and the circuit-breaker is ready for the

impending switching operation (see also section

6.2).

The criterion for the "Ready" lamp to light up is the

energy in the storage capacitor(s) at the particular

time; otherwise and error signal is issued:

Case 1: Breaker in the OFF position.

The energy available is sufficient for an ON and

an OFF switching operation.

Case 2: Breaker in the ON position.

The energy available is sufficient for an OFF

switching operation.

The energy available is sufficient for an OFF

switching operation in the first 200 s after

failure of the supply power supply (see also

section 6.3).

3.2.3 Sensor system


The systematic use of sensors permits control of

the circuit-breaker without auxiliary switches.Two inductive proximity switches 15 and 16 are

used to detect the mechanical limit positions,

which also provide for self-monitoring of the

system.


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15

Figure 3/1: Circuit-breaker front with controls and annunciations.

1 Mechanism enclosure1.1 Front plate

1.2 Bore for handling, both sides

2 Ready indicator

3 ON push-button

4 OFF push-button

5 Mechanical operating cycle counter

6 Mechanical position indicator

7 Rating plate

8 Socket for emergency manual operation lever

Figure 3/2: Sectional view of a vacuum circuit-breaker type VM1,

schematic diagram.

1 Mechanism enclosure

1.1 Front plate, removable

9 Emergency manual opening mechanism

10 Magnetic actuator

11 OFF coil

12 Magnet armature

13 Permanent magnets

14 ON coil

15 Sensor -B0A for circuit-breaker OFF signal

16 Sensor -B0E for circuit-breaker ON signal

17 Travel adjuster

18 Lever shaft

19 Insulated link rod

20 Contact force spring

21 Flexible connector

22 Lower breaker terminal

23 Cast insulation

24 Vacuum interrupter

24.1 Moving contact

24.2 Fixed contact

25 Upper breaker terminal

7

6

5

1

1.1

1.2

2

3

4

8

22

21

20

19

17

16

14

12

11

9

1

25

24

23

13

1.1

10

15

18

24.1

24.2

Figure 3/3: View of the magnetic actuator mechanism with auxiliary

systems, high-current breaker, front plate removed.

5 Mechanical operating cycle counter6 Mechanical posit ion indicator

8 Socket for emergency manual operating lever

10 Actuator

26 Storage capacitor

27 Circuit-breaker control unit

6

15

16

Figure 3/4: Position indicator.

6 Mechanical position indicator

15 Sensor -B0A for circuit-breaker OFF signal16 Sensor -B0E for circuit-breaker ON signal

27

26

26

8

10

6

5


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16

3.2.4 Ready lamp

When the ready lamp lights up, it indicates that

the VM1 breaker is supplied with auxiliary power

(see also section 6.2),

the voltage at the storage capacitor is sufficient

for the next switching operation (see section

3.2.2),

the position sensors have detected a clear ON orOFF position (see also section 3.3.2), and

that the logic module is functioning correctly

(watchdog).

The ready lamp does not monitor the status of the

"closing lock-out" and "OFF U


17/28

17

3.3.3 Opening and closing procedure


The opening and closing processes can be remote

controlled by applying a voltage to input Y3 (ON)

and Y2 (OFF) (see also sections 2.2a and 6.2). The

breaker can be operated locally by pressing push

buttons 3 and 4.

In the closing process, the armature motion acts

direct via lever shaft 18 on the moving contact 24.3until the contacts meet.

In the further motion sequence, the pretensioned

spring arrangement 20 is tensioned to 100% and

the necessary contact force thus applied. The

available overtravel is greater than the maximum

contact burn-off throughout the life of the vacuum

interrupter.

3.3.4 Autoreclosing sequence

The operating mechanism is fundamentally

prepared for autoreclosing, and with the short

recharging time of the storage capacitor (max. 3 s)

it is also suitable for multi-shot autoreclosing.

3.3.5 Quenching principle of the vacuum interrupter

Due to the extremely low static interrupter chamber

pressure of 10-4to 10-8mbar, only a relatively small

contact gap is required to achieve a high dielectric

strength. The vacuum arc is extinguished on one of

the first natural current zeros.

Due to the small contact gap and the high

conductivity of the metal vapour plasma, the arc

drop voltage, and additionally, due to the shortarcing time, the associated arc energy, are

extremely low, which has advantageous effects on

the life of the contacts and thus on that of the

vacuum interrupters.

3.3.6 10-pole plug-in terminal strip

A 10-pole terminal strip X1 at the top right of

the VM1 enclosure facilitates secondary side

connection of the circuit-breaker inputs.

The connection points are designed to be

suitable for screws.

Inputs Y4 and Y1 are connected to 80 V DC

via plug -X2 (closed circuit current inputs, see

also section 3.3.2).If these functions are to be used, the wiring on

these inputs is to be removed, including the

corresponding half of plug -X2.

Power supply:

Terminal strip Q0, terminals 47 and 50,

accessible via the fitted plug with screw

connections. The polarity is irrelevant.

Outputs S7/S11/S12/S41/S42:

Terminal strip Q0, terminals 1 to 14, accessible

via the fitted plug with screw connections.


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External circuit-breaker connection:

Inputs:

Y3 ON switching command (open circuit)

Y2 OFF switching command 1 (open circuit)

Y4 OFF switching command (closed circuit)

Y1 Closing lock-out (closed circuit)


G0 Voltage supply

Outputs:

S41 OFF signal (NOC)

S42 ON signal (NOC)

S7 Fleeting contact (time: 40 ms)

S11 Ready for operation (NOC)

S12 Failure message (NCC)

Figure 3/5: Block diagram of the magnetic actuator mechanism.

2 Ready indicator (LED)

3 ON push-button

4 OFF push-button

10 Actuator

15 Sensor for circuit-breaker OFF signal

16 Sensor for circuit-breaker ON signal

26 Storage capacitor

27 Circuit-breaker control unit

30 Converter for operation with AC or DC voltage

Q0 Circuit-breaker

/ A: 24 V...48 V AC/DC; 60 V DC

LOGIC

3

4

27

2

-Q0 15 10

16

26

30

-Y2

-Y1

-Y4

-Y9

-S42

-S7

-S11

-S12

-S41

-Y3

B: 110 V...240 V AC/DC=

= -G0


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19

Figure 3/7: Connection diagram for circuit-breaker.

I Circuit-breaker control unit ( lower board)I I AC/DC converter (upper board)

-Q0 Circuit-breaker

-X1 Terminal str ip

-X2 Plug (see the notes for auxiliary power

supply of shunt release -Y4 and -Y1 in

section 3.3.2 and 3.3.6)

Inputs:

Y3 ON switching command (open circuit)


Y4 OFF switching command (closed circuit)

Y1 Closing lock-out (closed circuit)


G0 Voltage supply

Outputs:

S41 OFF signal (NOC)

S42 ON signal (NOC)

S7 Fleeting contact

(time: 40 ms)

S11 Ready for operation (NOC)

S12 Failure message (NCC)

AC/DC converter (30)

(upper board)

Circuit-breaker control unit (27)(lower board)

Outputs: S41

S42S7

S11

S12

Connection for ON button (3)

OFF button (4) Signal lamp (2)

Input G0 for voltage supply

Connection for

actuator on and

off coils (10)

Connection

for storage

capacitor (26)

Figure 3/6: Circuit-breaker

control unit with

AC/DC converter.

Inputs for ON/OFF

position signal(sensors)

Inputs: Y3

Y2

Y4

Y1Y9

Fleeting contact

OFF command 2

OFF command 2

10

-Q0

OFFcoil

11

2

34

5

67

8

9

1011

12

1314

2

345

6

78

9

1011

12

1314

OFF signal

READY

-S41

-S42

-S7

-S11

-S12NOT READY

= failure

ON

OFF

READY

4748

49

50

47

4849

50

-Q0

ON

coil

+80V

+80V

46

45

44

43

46

45

44

43

0V

0V

+80V

+80V

42

41

40

39

42

41

40

39

+80V

0V

0V

+12V

51

52

53

54

5

1

5

2

5

3

5

4

+80V

+12V

38

37

36

35

38

37

36

35

-Q0

-Q01516

17

1819

20

2122

23

2425

2627

28

-Q029

30

3132

33

34

29

30

3132

33

34

-Y31516

17

1819

20

2122

23

2425

2627

28

+OFF

+ON

+12V+12V

0V

0V

ON signal

ON command

ON command

OFF command 1

OFF command 1

ON block

ON block

OFF U

manual del interruptor abb calor emag en vacio vm1

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