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TV12E Series Indoor Vacuum Circuit Breaker
● Product Information
TV12E type of solid-sealed vacuum circuit breaker is a new generation of 12KV vacuum circuit breaker independently researched and developed by our company with domestic leading level. Its main feature is that the main conductive circuit is solidly sealed its poles with solid insulation. Which is a special embedding technology where vacuum interrupters and conductive parts with ultra-low resistance values are cast in epoxy resin to achieve solid insulation of the main conductive circuit. Its operating mechanism is a new type of spring-operated mechanism
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FEATURES
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STANDARD
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Infinitely reliable vacuum interrupters
v Long life: The mechanical and electrical life of the interrupter for circuit breaker can reach 50,000 times, making the product more cost-effective.
v High breaking capacity, high dielectric strength: Rigorous and excellent contact and internal structure design, the world's leading material manufacturing and surface treatment technology, to ensure the opening and insulation performance of the interrupter.
v Operational safety：
u low breakdown rate：Close to zero for 12KV products and less than 1% for 40.5KV products. Ensure reliability when breaking capacitive loads
u low cut-off value：Cut-off value less than 3A, low overvoltage when switching inductive loads.
u Low air leakage rate: less than 14ppm
u High vacuum: more than 1x10-4 pa
v Anti-fouling: Sufficient inter-pole and relative ground creepage distances ensure the anti-fouling capability of the encapsulated poles.
v low partial discharge value：less than 1pc, which ensures the life of organic insulating materials and the safety of equipment.
v Low temperature increasing: low circuit resistance and good heat dissipation design ensure that the switch works under normal temperature for a long time.