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switch cabinet accessorieshlvp-12(vs1) indoor type vcb vacuum circuit breaker
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hlvp(vs1)-12 model indoor high voltage vacuum circuit breaker applies to power system of rated voltage 12kv as a protective and control unit for power grid equipment and industrial power equipment it can equip with kyn28(gzs1), xgn, gg-1a and other types of switchgear panels. related products: isolated handcart, fuse handcart and voltage transformer handcart.   


ambient temperature:-10℃- 40

relative humidity:the average humidity of a day should be no more than 95%. the average humidity of a month should be no more than 90%.

earthquake intensity: not exceed 8 degrees.

saturated vapor pressure the average pressure of a day should be no more than 2.2kpa; the average pressure of a month should be no more

than1.8kpa;

the height above sea level:≤1000 m (except special requirements)

it should be installed in the places without fire, explosion, serious filth, and chemical erosion and violent vibration.

no.

item

unit

parameter

1

rated voltage

kv

12

2

rated lighting impulse voltage tolerance 

kv

75

3

1 min frequency voltage 

kv

42

4

frequency tolerance of the secondary circuit voltage (1 min)

v

2000

5

rated short-circuit breaking current breaking number

times

50

6

1min power frequency

ka

42/48

7

lightning impulse withstand voltage (peak)

75/85

8

rated short-circuit breaking current

ka

20/25

31.5

40

9

rated crurrent

a

630

1250

630/1250

1250/1600

1600/2000

2000/2500

2500/3150

3150/4000

10

rated thermal stability of current(rms)

ka

20/25

31.5

40

11

dynamic stability rated current(peak)

ka

63

80

100

12

rated short-circuit closing current(peak)

ka

63

80

100

13

rated operating sequence 

o-0.3s-co-180s-co

o-180s-co-180s-co

14

rated a single/back-to-back electric current breaking device group

a

630/400     800/400(40ka)

15

mechanical life 

times

10000

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