Yatai Electrical Group Co., Ltd.
Main products:Circuit breaker,AC contactor,Dual Power,meter,power transformer
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  • Contact Person : Mr. Chen Power
  • Company Name : Yatai Electrical Group Co., Ltd.
  • Tel : 0086-577-89008222
  • Fax : 0086-577-89736535
  • Address : Zhejiang,Wenzhou,Liushi,Yueqing
  • Country/Region : China
  • Zip : 325604

24kv vacuum circuit breaker ZN12-12kv 24KV Series Fixed Type Vacuum Circuit Breaker

24kv vacuum circuit breaker ZN12-12kv 24KV Series Fixed Type Vacuum Circuit Breaker
Product Detailed
1)No.1 Vacuum circuit breaker factory 2)Export to Ethiopia,Thailand,Burma,Mongolia,HK,Kenya 3)23 years' manufacture experienc

ZN12-12kv Series Fixed Type Vacuum Circuit Breaker:

ZN12-12kv series fixed vacuum circuit breaker is rated voltage 12kV, three-phase AC 50Hz indoor high voltage switchgear is the introduction of Siemens technology manufacture.

The circuit breaker operating mechanism for the spring energy storage, which can be AC or DC operation, can also be used manually.

Simple structure of the circuit breaker, breaking capacity, long life operation functional and explosion hazards, maintenance is simple and applies to power plants, substations and other transmission and distribution system of control or protection switching, especially for important load breaking and frequent operation place.

This product accordance to GB-1984-89<AC High Voltage Circuit Breaker>

The use of environmental conditions:

1.Ambient temperature: not higher than +40 °C, not less than -25°C

2.Altitude: not exceed 2000m.

Mainly technical parameters
ItemUnitsUint
12345678910
Rated voltageKV 12121212121212121212
Rated currentA1250160020002500160020003150160020003150
Rated shorted-circuit break currentKA 31.531.531.531.5404040505050
Dynamic stability current (peak)KA 80808080130130130140140140
4S thermal stability current (50KA for the 3s)KA 31.531.531.531.5404040505050
Rated short circuit making current (peak)KA 80808080100100100125125125
Rated short-circuit current breaking timesTimes503012
Rated operating sequence 0-0.3s-CO-180s-CO 
Rated lightning impulse withstand voltageKv75
Rated short-time power frequency withstand voltage (1min)Kv42
Closing TimeMs≤75
Opening TimeMs≤60(50)
Mechanical life timeTimes20000(1-4)10000(5-10)
Rated current breaking timesTimes20000(1-4)10000(5-10)
Motor Power Energy StorageW275
Energy storage motor rated voltageVAC DC 110  AC DC220
Storage timeS≤15
Closing solenoid rated voltageVAC DC :110 220
Tripping solenoid rated voltageVAC DC :110 220
 Discharge Shunt trip Rated voltageVAC DC :110 220
Loss of pressure tripping device rated voltageVAC DC :110 220
Overcurrent tripping device rated currentA5
auxiliary switch rated currentAAC10  DC5

  

24kv vacuum circuit breaker ZN12-12kv 24KV Series Fixed Type Vacuum Circuit Breaker



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