Short Description:
The ZN63 (VS1) -12 series indoor high-voltage vacuum circuit breaker is a three-phase AC 50Hz indoor switchgear with a rated voltage of 12kV. It can be used for control and protection of industrial and mining enterprises, power plants, substations, and electrical facilities, and is suitable for frequent operation in places. By integrating the operating mechanism with the circuit breaker body, it can be designed as a fixed installation unit or equipped with a dedicated propulsion mechanism to form a handcart unit for use. The main circuit section can be equipped with integral sealing columns to achieve miniaturization, high reliability, and maintenance free of circuit breakers. It can be used with KYN28A-12 (GZS) and other mid mounted handcart style switchgear, and can also be used with XGN series fixed switchgear.
Operation mode of ZN63 (VS1) -12 indoor high-voltage vacuum circuit breaker:
◆ Environmental temperature: not higher than 40 ℃, not lower than -10 ℃ (allowed for storage and transportation at -30 ℃);
◆ Altitude: not exceeding 1000m (if the altitude is increased, the rated insulation level will be correspondingly increased);
Relative humidity: daily average not exceeding 95%, daily average saturated vapor pressure not exceeding 2.2X 103MPa, monthly average not exceeding 1.8X 103MPa;
Earthquake intensity: not exceeding level 8;
◆ Places without fire, explosion, serious pollution, chemical corrosion, and severe vibration;