First, an overview
VSL(ZN63)-24kV indoor high voltage vacuum circuit breaker, Department of three-phase AC 50Hz rated voltage 24kV power system of indoor switchgear, as the power equipment, industrial and mining enterprises, power equipment protection and control unit. For on frequent operation under the rated working current, or many times of breaking short-circuit current.
The circuit breaker adopts the operating mechanism and the circuit breaker body integral design, which can be used as a fixed installation unit, also can be equipped with a special propelling mechanism, which is composed of the action of the hand vehicle unit.
Two, the use of environmental conditions
1, ambient air temperature: upper limit of +40 degree, lower limit of -40;
2, altitude: less than 2000m (if the elevation, is rated insulation level increase);
3, wind pressure: no more than 700Pa (equivalent to the wind speed 34m/s);
4, seismic intensity: no more than 8 degrees;
5, pollution level: grade iv;
6, the maximum daily temperature difference: no more than 25 degrees;
7, relative humidity: daily average of not more than 95%, the average of not more than 90%;
8, non flammable, explosive hazards, chemical corrosion and violent vibration of the place.
Six, ordering instructions
1, circuit breaker name, type and order quantity;
2, circuit breaker rated current and rated short circuit breaking current;
3, the operating mechanism of the type, name, operating voltage and release type;
4, running cars and other spare parts, the number of spare parts;
5, if the user has other special requirements, when ordering negotiation.