VS1-12 series indoor high voltage vacuum circuit breaker

VS1-12 series indoor high-voltage vacuum circuit breakers are suitable for three-phase AC 50Hz power systems with voltage levels of 12KV and below. They are used for switching loads of various natures and frequent operations. They can be equipped with KYN28-12 (GZS1) center-mounted trolley switchgear or XGN- fixed switchgear. They are mainly used for power transmission in power plants, small and medium-sized generator sets, power distribution in industrial and mining enterprises, and power receiving and transmission in substations in power systems, as well as control and protection of large high-voltage motors.

Normal use conditions
Ambient temperature: upper limit +40℃, lower limit -10℃;
Relative humidity: daily average value is not more than 95%, monthly average value is not more than 90%;
Altitude: no more than 1000m;
Earthquake intensity: no more than 8 degrees.
The vacuum circuit breaker should be installed in a place without fire, explosion hazard, serious pollution, chemical corrosion and severe vibration.
Special conditions of use
When the vacuum circuit breaker is used in areas with an altitude greater than 1000m and less than 2000m, necessary insulation reinforcement measures must be taken in consultation with the manufacturer when placing an order.
When the maximum ambient temperature exceeds +40℃, the rated current-cutting capacity of the vacuum circuit breaker will be reduced by a certain factor, which must be confirmed by the manufacturer when ordering.