Summary

The VS1-12 series indoor fixed high-voltage vacuum circuit breaker is a three-phase AC 50Hz, 12kV rated voltage indoor switchgear. It is designed for the control and protection of industrial and mining enterprises, power plants, substations, and electrical facilities, and is suitable for frequent operation environments. The operating mechanism and the circuit breaker body are integrated, allowing it to be installed as a fixed unit,

It can also be equipped with a dedicated propulsion mechanism to form a trolley unit. The main circuit section can use an integral solid-sealed pole to achieve miniaturization, high reliability, and maintenance-free operation of the circuit breaker. It can be paired with medium-mounted trolley switchgear such as the KYN28A-12 (GZS), and fixed-type units can also be used in XGN series fixed-type switchgear.

Normal use environment

◆ Ambient temperature: not higher than 40℃, not lower than-10℃ (storage and transportation allowed at-30℃).

◆ Altitude: not more than 1000m. (If the altitude needs to be increased, the rated insulation level should be increased accordingly).

◆ Relative humidity: the daily average value is not greater than 95%, the daily average saturated vapor pressure is not greater than 2.5×10³MPa, and the monthly average is not greater than 1.8×10³MPa.

◆ Earthquake intensity: not more than 8 degrees.

◆ Places without fire, explosion, serious pollution, chemical corrosion and violent vibration.