VS1 Indoor High Voltage Vacuum Circuit Breaker
VS1-12 Series indoor medium-voltage vacuum circuit breaker is an indoor switchgear with a rated voltage up to 12kV in a three-phase AC 50Hz power system.
General Description
VS1-12 Series indoor medium-voltage vacuum circuit breaker is an indoor switchgear with a rated voltage up to 12kV in a three-phase AC 50Hz power system. It is used as a protection and control unit for power grid equipment and power equipment in industrial and mining enterprises. It is suitable for places requiring frequent operation under rated working current or breaking short-circuit current many times. The circuit breaker adopts an integrated design of the operating mechanism and the circuit breaker body, which can be used as a fixed installation unit or a special propulsion mechanism to form a handcart unit.
Model Instruction
VS 1 -12/ □ – □
VS – Indoor vacuum circuit breaker
1 – Design serial number
12 – Rated voltage (kV)
□ – Rated current (A)
□ – Rated short circuit breaking current (kA)
Main Technical Parameters
| Item | Unit | Parameters | ||
| Rated Voltage | kV | 12 | ||
| Rated short time power frequency withstand voltage(1 min) | 65/79(between phase,to earth/break) | |||
| Rated lightning impluse withstand voltage(peak) | 125/145(between phase,to earth/break) | |||
| Rated frequency | Hz | 50 | ||
| Rated current | A | 630 1250 |
630 1250 1600 2000 2500 3150 |
1250 1600 2000 2500 3150 |
| Rated short circuit breaking current | kA | 20/25 | 31.5 | 40 |
| Rated short time withstand voltage | 20/25 | 31.5 | 40 | |
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