Phase to phase, phase to earth power frequency withstand voltage; IEC standard required 65kV

What’s indoor 12kV VCB (Vacuum Circuit Breaker) fixed type finished product test item?

Each accessory of the operating mechanism (Spring motor drive): metal, spring, motor, gasket on the first floor storage inspection: including size Micro-computer measurement, plating thickness; after qualify approved, to the raw material warehouse in second floor;

How design the Medium Voltage indoor type Vacuum Circuit Breaker for outdoor mounting in China? RE: Indoor type Vacuum Circuit Breaker (VCB), mounting into VCB indoor switchgear for primary distribution line, VCB switchgear mounting into IP54 outdoor type substation container, now its perfect for dust proof for desert outdoor, with air conditioner inside.

VS1-GM medium voltage 12kV, operating mechanism modular design, cast resin pole for Vacuum Interrupter, rated current 630A --4000A available. Indoor Vacuum Circuit Breaker, for switchgear panel mounting, operating mechanism modular design, separately from the VCB frame, can be remove independently for maintanance and replacement.

Not all the VCB assemble can be approved after raw material testing and operating mechanism testing, that\'s why our factory doing the 3rd testing for finished assemble VCB.\nAs strictly control as reputed factory, this lucky VCB were dis-assemble, and re-testing again.\n\nQuality control from process detail.

1. Vacuum circuit breaker (VCB) mounting into switchgear cubcile \ntesting equipment, VCB in testing position\n2. Draw-in the VCB into running position and testing operation\n3. Draw-out the VCB again into testing position, and testing operation\n4. Put on the front cover, to testing operating again\n5. Finished operating testing, turn off the low voltage control plug\n6. Taken off the VCB from testing equipment, for next power frequency testing room

VCB in testing position, VCB and cubicle door were interlocked; VCB and Earthing Switch were interlocked; Earthing switch and cubicle back door were interlocked; Total five interlocked design for safety.

What's the life of VCB?
How many type of Vacuum Circuit Breaker?
What's the material inside Vacuum Circuit Breaker?