Surge arrester for motor
Surge arrester for motor is a protective device designed to mitigate the effects of voltage surges and transient overvoltages in electrical circuits. It functions by diverting excessive voltage spikes to ground or by suppressing them, thereby safeguarding the motor from potential damage caused by overvoltage conditions. This device is crucial in industrial and commercial applications to prolong motor lifespan and ensure equipment reliability by effectively managing electrical disturbances.
technical parameters of Motor type surge arrester：
| Gapless surge arrester | ||||||||||
| System nominal voltage (kV) | Arrester Type | Rated voltage (kV) | Arrester continuous operating voltage (kV) | Dc 1mA reference voltage (kV) | Maximum leakage at 0.75x DC 1mA voltage (μA) | Peak residual voltage (kV)≯ | 2000 μs square wave current capacity (A) | 4/10 high current impulse withstand (kV) | ||
| 8/20 lightning impulse current | 30/60 operation impulse current | 1/4 steep impulse current | ||||||||
| 3.15* | (HY)YH5WD-3.8/9.5 | 3.8 | 2 | 5.7 | 50 | 9.5 | 7.6 | 10.7 | 400 | 65 |
| 3.15* | (HY)YH5WD-4/9.5 | 4 | 3.15 | 5.7 | 50 | 9.5 | 7.6 | 10.7 | 400 | 65 |
| 6.3* | (HY)YH5WD-7.6/18.7 | 7.6 | 4 | 11.2 | 50 | 18.7 | 15 | 21 | 400 | 65 |
| 6.3* | (HY)YH5WD-8/18.7 | 8 | 6.3 | 11.2 | 50 | 18.7 | 15 | 21 | 400 | 65 |
| 10.5* | (HY)YH5WD-12.7/31 | 12.7 | 6.6 | 18.6 | 50 | 31 | 25 | 34.7 | 400 | 65 |
| 10.5* | (HY)YH5WD-13.5/31 | 13.5 | 10.5 | 18.6 | 50 | 31 | 25 | 34.7 | 400 | 65 |
| 13.8* | (HY)YH5WD-17.5/40 | 17.5 | 13.8 | 24.4 | 50 | 40 | 32 | 44.8 | 400 | 65 |
| 15.75* | (HY)YH5WD-20/45 | 20 | 15.75 | 28 | 50 | 45 | 36 | 50.4 | 400 | 65 |
| 18.0* | (HY)YH5WD-23/51 | 23 | 18 | 31.9 | 50 | 51 | 40.8 | 57.2 | 400 | 65 |
| 20.0* | (HY)YH5WD-25/56.2 | 25 | 20 | 35.4 | 50 | 56.2 | 45 | 62.9 | 400 | 65 |
| 3.15* | (HY)YH2.5WD-3.8/9.5 | 3.8 | 2 | 5.7 | 50 | 9.5 | 7.6 | 10.7 | 200 | 65 |
| 3.15* | (HY)YH2.5WD-4/9.5 | 4 | 3.5 | 5.7 | 50 | 9.5 | 7.6 | 10.7 | 200 | 65 |
| 6.3* | (HY)YH2.5WD-7.6/18 | 7.6 | 4 | 11.2 | 50 | 18.7 | 15 | 21 | 200 | 65 |
| 6.3* | (HY)YH2.5WD-8/18.7 | 8 | 6.3 | 11.2 | 50 | 18.7 | 15 | 21 | 200 | 65 |
| 10.5* | (HY)YH2.5WD-12.7/31 | 12.7 | 6.6 | 18.6 | 50 | 31 | 25 | 34.7 | 200 | 65 |
| 10.5* | (HY)YH2.5WD-13.5/31 | 13.5 | 10.5 | 18.6 | 50 | 31 | 25 | 34.7 | 200 | 65 |
| Series gap surge arrester | ||||||||||
| System nominal voltage (kV) | Arrester Type | Rated voltage (kV) | Power frequency discharge voltage (kV) ≮ | 1.2/50 impulse discharge voltage (kV) peak value ≯ | Maximum conducting current (μA) | Peak residual voltage (kV)≯ | 2000 μs square wave current capacity (A) | 4/10 high current impulse withstand (kV) | ||
| 8/20 lightning impulse current | 30/60 operation impulse current | 1/4 steep impulse current | ||||||||
| 3.15* | (HY)YH5CD-3.8/8.6 | 3.8 | 7.5 | 8.6 | 20 | 8.6 | 6.9 | 9.8 | 400 | 65 |
| 6.3* | (HY)YH5CD-7.6/17 | 7.6 | 15 | 17 | 20 | 17 | 13.8 | 19.6 | 400 | 65 |
| 10.5* | (HY)YH5CD12.7/28 | 12.7 | 25 | 28 | 20 | 28 | 22.5 | 32 | 400 | 65 |
| 3.15* | (HY)YH2.5CD-3.8/8.6 | 3.8 | 7.5 | 8.6 | 20 | 8.6 | 6.9 | 9.8 | 200 | 65 |
| 6.3* | (HY)YH2.5CD-7.6/17 | 7.6 | 15 | 17 | 20 | 17 | 13.8 | 19.6 | 200 | 65 |
| 10.5* | (HY)YH2.5CD-12.7/28 | 12.7 | 25 | 28 | 20 | 28 | 22.5 | 32 | 200 | 65 |
Contact Us:
Email: info@abimat-electric.com
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