ZW7-40.5/1250-25 type indoor high voltage Vacuum Circuit Breaker is rated voltage 40.5 kv, three-phase ac 50HZ system of indoor device, applicable to industrial and mining enterprises, power plants, substations and other places, used in high voltage motor, transformer, capacitor device control and protection.
This Type vacuum circuit breaker have passed has passed following test to ensure the product`s
Type tests : power-frequency withstand voltage tests , lighting impact withstand voltage tests, ,
temperature rising tests, short-time withstand current tests , peak withstand current tests , short circuit breaking ability tests , mechanical lift tests, ect.
Routine test before out of factory: mechanical performance test , power frequency withstand
voltage tests of the main circuit , insulating property tests on control and auxiliary circuits , measurement of ther resistance of the main circuit ,interlock operating tests , mechanical operating
tests, Electrical Equipment operating tests.
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Product Categories : Vacuum Circuit Breaker > 40.5kV Vacuum Circuit Breaker