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VSG/C-12KV indoor high voltage mv vacuum circuit breaker VCB for switchgear

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VSG/C-12KV indoor high voltage mv vacuum circuit breaker VCB for switchgear 

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VSG/C-12KV indoor high voltage mv vacuum circuit breaker VCB for switchgear 

VSG/C-12KV indoor high voltage vacuum circuit breaker for  Switchgear  

Indoor Switchgear type VSG Vacuum Circuit Breaker is applicable to 12kv power system, as a protection and control unit of power equipment, industrial and mining enterprises, it can be used for switching loads of various kinds and frequent operation, repeatedly breaking short-circuit current situation. The product adopts new type of Circuit breaker, a VSG part can adopt the international brand of embedded pole, the vacuum interrupter and the main circuit part is fixedly sealed into a whole, protect the interrupter from collision, dust and gel image, strong ability to adapt to the environment, greatly reduces the cost of operation and maintenance. The real implementation of the product part of a maintenance free, low maintenance Operation Mechanism; Operating Mechanism and Circuit Breaker body design, after type test, E2 level, M2 level of mechanical electrical life.

Main technical data

No. Item Unit Data
* Type / Insulating cylinder

 

Epoxy Resin Embedded poles

Nylon embedded poles

Upper outlet

 

Side outlet

1 Rated voltage  

 

 

KV

12
2 Rated short time power frequency withstand voltage(a min) 42
3 Rated lightning impulse withstand voltage(peak) 75
4 Rated frequency Hz 50
5 Rated current A 630,1250 630,1250

 

 

6 Rated short-circuit breaking circuit  

 

kA

25 31.5
7 Rated short time withstand current 25 31.5
8 Rated short-circuit duration s 4
9 Rated peak withstand voltage  

 

kA

63 80
10 Rated short-circuit closing current 63 80
11 Power frequency withstand voltage of secondary circuit(1 min) V 2000
12 Rated single/back-to-back capacitor bank breaking current A 630/400
13 Switching time  

 

ms

20-50
14 Closing time 35-70
15 Mechanical life  

 

time

M2 level

 

10000(630-125-/25-31.5)

16 Electrical life E2 level
17 Moving and fixed contacts allow wear accumulation thickness mm 3
18 Rated closing operating voltage V AC110,AC220

 

DC110,DC220

19 Rated breaking operating voltage
20 Rated voltage of energy storage Motor
21 Rated power of energy storage motor w 90
22 Storage time s ≤15
23 Contact distance mm 11±1
24 Over stroke 3±1
25 Contact closing bounce time  

 

ms

≤2
26 Different phases of three-phase switching ≤2
27 Average breaking speed  

 

 

M/s

Contact opening 6mm 0.9~1.7 0.9~1.7
28 Average closing speed Contact closing 6 mm 0.6~1.0 0.6~1.0
29 Switching rebound amplitude mm ≤3
30 Dominant loop resistance μΩ ≤45(630)

 

≤35(1250A)

31 Contact closing pressure N 3100~3700
32 Rated order of operation   O-0.3s-CO-180s-CO

VSG/C-12KV indoor high voltage mv vacuum circuit breaker VCB for switchgear

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