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  • VBI-12 Indoor High Voltage Vacuum Circuit Breaker
  • VBI-12 Indoor High Voltage Vacuum Circuit Breaker

VBI-12 Indoor High Voltage Vacuum Circuit Breaker

Description:

VBI-12 Indoor High Voltage Vacuum Circuit Breaker is three-phase AC 50Hz,Rated voltage of 12KV indoor device,For industrial and mining enterprises, power plants and substations as electrical equipment control and protection purposes, and for frequent operation of the place.

  • Product Description

VBI-12KV VACUUM CIRCUIT BREAKER

Summary

VBI-12 Indoor High Voltage Vacuum Circuit Breaker is three-phase AC 50Hz,Rated voltage of 12KV indoor device,For industrial and mining enterprises, power plants and substations as electrical equipment control and protection purposes, and for frequent operation of the place.

Main Technical Specification

NO. Name Unit Data
1 Rated voltage KV 12
2 Rated insulation level 1min Power frequency withstand voltage 42
Rated lightning impulse withstand voltage 75
3 Rated current A 630 1250 2000 3150
4 Rated short circuit breaking current KA 20 25 31.5 40
5 Rated short-circuit opening and closing current (peak) 50 63 80 100
6 Rated dynamic current (peak) 50 63 80 100
7 Rated thermal stability current (rms) 20 25 31.5 40
8 Rated short circuit current breaking times time 50 20
9 Rated thermal stability time S 4
10 Rated operating sequence / O-0.3S-CO-180S-CO
11 Mechanical life time 10000
12 Rated single capacitor bank breaking current A 630
13 Rated back to back capacitor bank breaking current 400

 

 

VBI-C side mounted vacuum circuit breaker

 

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1, We are specialized in sales of high-voltage electrical insulation products.

2, Strict quality control and excellent after-sales service.

3. Experienced staffs answer all of your question in fluent English.

3. Customized design is available. OME&ODM are welcomed.

4. Exclusive and unique solution can be provided to our customer by our well-trained and professional engineers and staffs.

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