- 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
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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 | |||||||||||||
Item | Units | Uint | |||||||||||
1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | ||||
Rated voltage | KV | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | ||
Rated current | A | 1250 | 1600 | 2000 | 2500 | 1600 | 2000 | 3150 | 1600 | 2000 | 3150 | ||
Rated shorted-circuit break current | KA | 31.5 | 31.5 | 31.5 | 31.5 | 40 | 40 | 40 | 50 | 50 | 50 | ||
Dynamic stability current (peak) | KA | 80 | 80 | 80 | 80 | 130 | 130 | 130 | 140 | 140 | 140 | ||
4S thermal stability current (50KA for the 3s) | KA | 31.5 | 31.5 | 31.5 | 31.5 | 40 | 40 | 40 | 50 | 50 | 50 | ||
Rated short circuit making current (peak) | KA | 80 | 80 | 80 | 80 | 100 | 100 | 100 | 125 | 125 | 125 | ||
Rated short-circuit current breaking times | Times | 50 | 30 | 12 | |||||||||
Rated operating sequence | 0-0.3s-CO-180s-CO | ||||||||||||
Rated lightning impulse withstand voltage | Kv | 75 | |||||||||||
Rated short-time power frequency withstand voltage (1min) | Kv | 42 | |||||||||||
Closing Time | Ms | ≤75 | |||||||||||
Opening Time | Ms | ≤60(50) | |||||||||||
Mechanical life time | Times | 20000(1-4)10000(5-10) | |||||||||||
Rated current breaking times | Times | 20000(1-4)10000(5-10) | |||||||||||
Motor Power Energy Storage | W | 275 | |||||||||||
Energy storage motor rated voltage | V | AC DC 110 AC DC220 | |||||||||||
Storage time | S | ≤15 | |||||||||||
Closing solenoid rated voltage | V | AC DC :110 220 | |||||||||||
Tripping solenoid rated voltage | V | AC DC :110 220 | |||||||||||
Discharge Shunt trip Rated voltage | V | AC DC :110 220 | |||||||||||
Loss of pressure tripping device rated voltage | V | AC DC :110 220 | |||||||||||
Overcurrent tripping device rated current | A | 5 | |||||||||||
auxiliary switch rated current | A | AC10 DC5 |
24kv vacuum circuit breaker ZN12-12kv 24KV Series Fixed Type Vacuum Circuit Breaker