The circuit-breaker is installed in the ventilated room. It should be purged by dry air with the humidity not more than 50% and the temperature lower by 2° С than the temperature of surfaces of insulators and insulating parts of the circuit-breaker.
Specifications:
- Rated voltage (kV): 15
- Rated current at 50 / 60 Hz (A): 11 200 / 10000
- Rated breaking current at 50 / 60 Hz (kA): 90 / 71
- Mechanical lifetime: 3000 CO cycles
Design
Three poles of the circuit-breaker are mounted on the frame and divided with interpole partitions. The circuit-breaker driving mechanism is connected with the drive via the tie-rod. There are six insulated tanks, two tanks for each pole. Main terminals of the apparatus are air-insulated. The circuit-breaker has two circuits, namely: main circuit and interrupting circuit.
10 kV Vacuum Circuit-Breakers
