Three Phase Combined Overvoltage Protector
Three-phase combined overvoltage protector can effectively limit atmospheric overvoltage and operating overvoltage, and can effectively protect various electrical equipment in the power system, especially the phase-to-phase, phase-to-ground, and inter-turn insulation of high-voltage rotating electrical machines with weak insulation. Three-phase combined overvoltage protector uses a large number of zinc oxide valve plates, which can effectively reduce the energy caused by overvoltage Thermal collapse accident caused by exceeding the capacity of the protective device.
Model
Paraments
| Model | object of protection | Protection object rated voltage (kV) | Protection device rated voltage (kV) | Protection device continuous operating voltage (kV) | Wiring | DC reference voltage < (KV) | Residual pressure (peak) kv> | Flow volume bucket | ||||||
| operation shock 500A | lightning strike 5KA | Steep wave shock 5KA | operation shock100KA | lightning strike 2.5KA | Steep wave shock 2. 5K A | 2ms square wave impulse current(A) | high current inrush current (KA) | |||||||
| BWKG-E3. 15-2. 5A/1000 | Electric type | 3.15 | 4 | 3.2 | phase-phase | 7 | 9.4 | 11.6 | 13 | 1000 | 100 | |||
| BWIKG -E6. 3-2. 5A/1000 | 6.3 | 8 | 6.3 | phase-phase | 14 | 18.7 | 23.3 | 26.2 | 1000 | 100 | ||||
| BWKG-E10. 5-2. 5A/1000 | phase-phase | 11.2 | 15 | 18.7 | 21 | |||||||||
| 10.5 | 13.5 | 10.5 | phase-phase | 23.2 | 31 | 38.7 | 43.3 | 1000 | 100 | |||||
| phase-ground | 18.6 | 25 | 31 | 34.7 | ||||||||||
| BWKG- -E10. 5-5A/1000 | Generator type | 3.15 | 4 | 3.2 | phase-phase | 7 | 9.4 | 11.6 | 13 | 1000 | 100 | |||
| BWKG- -E10. 5-5A/1000 | phase-ground | 5.7 | 7.6 | 9.5 | 10.7 | |||||||||
| 6.3 | 8 | :I 6.3 | phase-phase | 14 | 18.7 | 23.3 | 26.2 | 1000 | 100 | |||||
| BWKG- -E10. 5-5A/1000 | phase-ground | 11.2 | 15 | 18.7 | 21 | |||||||||
| 10.5 | 13.5 | 10.5 | phase-phase | 23.2 | 31 | 38.7 | 43.3 | 1000 | 100 | |||||
| phase-ground | 18.6 | 25 | 31 | _34.7 | ||||||||||
| BWKG- -E3-B/1000 | Power station type | 3 | 5 | 4 | phase-phase | 7.5 | 11.5 | 13.5 | 15.5 | 1000 | 100 | |||
| BWKG- -E6-B/1000 | phase-ground | 7.2 | ||||||||||||
| 6 | 10 | 8 | phase-phase | 15 | 23 | 27 | 31 | 1000 | 100 | |||||
| BWKG- -E10-B/1000 | phase-ground | 14.4 | ||||||||||||
| 10 | 17 | 13.6 | phase-phase | 25 | 38.3 | 45 | 51.8 | 1000 | 100 | |||||
| BWKG- -E35-B/1000 | phase-ground | 24 | ||||||||||||
| 35 | 51 | 40.8 | phase-phase | 84 | 134 | 150 | 170 | 1000 | 100 | |||||
| phase-ground | 73 | 114 | 134 | 154 | ||||||||||
| BWKG- -E3-C/1000 | Capacitive | 3 | 5 | 4 | phase-phase | 7.5 | 10.5 | 13.5 | 1000 | 100 | ||||
| BWKG- -E6-C/1000 | phase-ground | 7.2 | ||||||||||||
| 6 | 10 | 8 | phase-phase | 15 | 21 | 27 | 1000 | 100 | ||||||
| BWKG- -E10-C/1000 | phase-ground | 14.4 | ||||||||||||
| 10 | 17 | 13.6 | phase-phase | 25 | 35 | 46 | 1000 | 100 | ||||||
| BWKG-E35-C/1000 | phase-ground | 24 | ||||||||||||
| 35 | 51 | 40.8 | phase-phase | 84 | 121 | 150 | 1000 | 100 | ||||||
| phase-ground | 73 | 105 | 134 | |||||||||||
The normal conditions of use:
1. Suitable for indoor use;
2. Ambient temperature -40℃ ~ +40℃;
3. The altitude is 2000m and below (higher than 2000m should use special plateau products);
4. The power frequency is not less than 48Hz, not more than 62Hz;
5. The earthquake intensity is 8 degrees and below;
6. The maximum wind speed is 35m/s and below;
7. Heavy contamination and below;
8. The continuous voltage fluctuation of the installation point should not exceed the continuous operating voltage of the protector