Description

ZN63(VSG)-12 indoor high voltage fixed vacuum circuit breaker is suitable for three-phase, Ac50Hz with 12KV rated voltage. lt can provide control and protection for industrial and mining enterprises, power plants and substations, and electrical facilities, and is suitable for frequent operation.The operating mechanism is integrated with the main body of the circuit breaker, and the design can be used as a fixed installation unit. it can also be special propulsion mechanism to form a handcart unit.The main loop adopts the integral solid pole to realize the miniaturization, high reliability and free-maintenance of the circuit breaker. it can be used in KYN28A-12 (GZS) and other center-mounted handcart switchgears. The fixed type could also be used in the XGN series fixed switchgear.

APPLYING AMBIENT CONDITIONS

1.Ambient temperature: -30°C~+40°C.
2. Relative humidity: the average humidity of a day should be no more than95%.The average
humidity of a month should be no more than 90%.
3.Earthquake intensity: not exceed 8 degrees.
4.Saturated vapor pressure: the average pressure of a day should be no more than 2.2kPa;
the average pressure of a month should be no more than1.8Kpa.
5.The height above sea level: ≤ 1000 m (Except special requirements).
6. It should be installed in the places without fire, explosion, serious filth,and chemical
erosion and violent vibration.