Specifications:
- Rated voltage (kV): 35
- Rated current (A): 1600
- Rated breaking capacity (kA): 25
- Peak withstand current (kA): 80
- Mechanical lifetime: 25000 CO cycles
- Electrical lifetime at rated currents: 25000 CO cycles
- Electrical lifetime at rated breaking currents: 50 CO cycles
Design
The circuit-breaker is a switching apparatus with three poles mounted on the common frame and controlled by the electromagnetic drive installed inside this frame. The first pole houses two interrupting modules connected in series, and the second and third poles house one module each. Each pole houses: supporting insulator, shields for ensuring the required electrical strength among poles, insulating tie-rods transmitting motion from the drive to moving contacts of interrupters and to the cover. The frame houses also an indicator of open and close position. Current-conducting buses are connected to current collectors.
10 kV Vacuum Circuit-Breakers
