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MVS7-12-(ZN93e)

Vacuum Circuit Breaker MVP1-12 (ZN73)

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Description

 

MVP1-12 (ZN73) — 12kV series permanent magnet sealed vacuum circuit breaker in indoor switchgear with tri-phase AC 50Hz rated voltage12kV. With company’s own research and development of permanent magnetic operating machinery, the control and protection of the electrical facilities for industrial and mining enterprises, power plants and substations.

The product has high reliability and long life and other characteristics, especially suitable for frequent operation, open circuit, short circuit current and places of conditions for many times.

MVP1-12-1

Количество просмотров 16

Parameters

 

MVP1-12 (ZN73) vacuum circuit breaker main technical parameter

Item Unit Data
Rated voltage kV 12
Rated insulation level rated lightning impulse withstand voltage kV 75
Rated insulation level 1 min P.F. withstand voltage kV 42
Rated current A 630-1250, 1250-3150, 1250-4000*
Rated short-circuit breaking current kA 20, 31.5, 40
Rated short current making current (peak value) kA 50, 80, 100
Rated dynamic stably current (peak) kA 50, 80, 100
Rated thermal stably current (effective value) kA 20, 31.5, 40
Rated short-circuit breaking current breaking times times 30, 20
Rated short-circuit duration s 4
Rated operating sequence O-0.3s-CO-180s-CO
Mechanical life times 100 000
Mechanical life of permanent-magnetic and transmission part times 100 000
Rated single capacitor bank breaking current A 630
Rated back-to-bank capacitor breaking current A 400
Rated pull-out breaking current kA 12.6, 16
Количество просмотров 16

Solutions

 

  1. High reliability, long life, free maintaining.
  2. Internal innovation permanent magnetic operation mechanism, the mechanical life reach 100,000 times.
  3. Comparison with traditional mechanical operation, it is without disengaging, locker, with greatly reduction on spare parts, only one moving element during working, very low error rate.
  4. The high matching between mechanism operation and characteristic of interrupter breaking, closing.
  5. Double stability status of closing, opening operation.
  6. With antibouncer function.
  7. With alarming function of controlling power low voltage refusing close.
  8. Same speed of mechanical handle opening and motor opening, at the situation of twice power fault, it is used for urgent opening.
  9. The operation type of AC or DC stored energy, the working current<2A, it is available for one-time opening, closing, opening operation within 2 hours of power cut.
  10. With high reliable operation control circuit module, it could stand strictly condition such as lightning strike, surging when product on running.
  11. Great commonality, the installation size is compatible with MVS1-12 (ZN63) series products.
Количество просмотров 16

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