VOG-12/MS series vacuum permanent magnetic circuit breaker
VOG-12/MS series vacuum permanent magnetic circuit breaker
VOG-12/MS series vacuum permanent magnetic circuit breaker mainly composed by solid seal post, current transformers, permanent magnetic actuator and the cabinet composition. This type circuit breaker is small design, high quality stainless steel cabinet housing. At the same time with a manual emergency brake device (can be configured according to user needs to install manually switch device , the parameter of manual closing reached to the same value of electrical closing, to meet with a load of closing function). Isolation switch and current transformers can be selected according to user needs.
Mainly Technical parameter
No. | Item | Units | Value | |
1 | rated voltage | kV | 12 | |
2 | rated current | A | 630 | |
3 | rated frequency | Hz | 50 | |
4 | 1min power frequency voltage tolerance | Dry | kV | 42/49 |
Wet | 30 | |||
5 | Lightning impulse withstand voltage (peak) inter phase , earth, fracture | kV | 75/85 | |
6 | Rated short-circuit breaking current | kA | 20 | |
7 | Rated short-circuit closed current | kA | 50 | |
8 | Rated peak withstand current | kA | 50 | |
9 | 4S short-time withstand current | kA | 20 | |
10 | Rated operate circulation |
| O-0.3s-CO-180s-CO | |
11 | Rated short-circuit breaking current breaking | Times | 30 | |
12 | Mechanism life | Times | 10000 | |
13 | Secondary circuit 1min power frequency voltage | kV | 2 | |
Mainly Date of Operating mechanism
No. | Parameters name | Units | Value |
1 | Contact distance | mm | 9±1 |
2 | Contact over-travel | mm | 2.5±0.5 |
3 | Opening speed | m/s | 1±0.2 |
4 | Closing speed | m/s | 0.6±0.2 |
5 | Contact closing bounce duration | ms | ≤2 |
6 | Inter phase central distance | mm | 340±1.5 |
7 | Three phase closing and opening synchronism | ms | ≤2 |
8 | Phase conductive circuit resistance | µ Ω | <80 |
9 | Closing time | ms | 25~45 |
10 | Opening time | ms | 23~45 |
11 | Weight | Kg | ≈70 |
VOG-12/MS vacuum permanent magnetic circuit breaker
