Surge arrester is the basis of insulation coordination of all kinds of electrical equipment (transformer, reactor, capacitor, generator, engine, PT, CT, circuit breaker, contactor, etc.) in power system. Metal oxide arrester is the most advanced product of conventional surge arrester in the world. The core working element of this product is fired with zinc oxide based polymetallic oxide powder. It has excellent nonlinear shape and volt ampere characteristics, corresponding fast steep wave and large flow capacity.
HY5WS series surge arrester is mainly used in power distribution equipment.
| Model Number | HY5WS-3.8/15 | HY5WS-5/15 | HY5WS-7.6/30 | HY5WS-10/30 | |
| Rated Voltage（KV） | 3.8 | 5 | 7.6 | 10 | |
| Nominal Voltage(KV) | 3 | 3 | 6 | 6 | |
| Continuous Operating Voltage(KV) | 2 | 4 | 4 | 4 | |
| DC (U1mA) Reference Voltage
Not Less Than (KV) |
7.5 | 7.5 | 15 | 15 | |
|
Maximum Residual Voltage Peak (KV)
|
Steep Waves
Shock Current |
17.3 | 17.3 | 34.6 | 34.6 |
| Lightning Strikes The Current | 15 | 15 | 30 | 30 | |
| Operating Shock Current | 12.8 | 12.8 | 25.6 | 25.6 | |
| 2000μs Square Wave
Flow Capacity (A) |
75 | 75 | 75 | 75 | |
| 4/10μs Peak Impulse Current (KA) | 40 | 40 | 40 | 40 | |
| Maximum Leakage Current
At 0.75 DC Reference Voltage (μA) |
50 | 50 | 50 | 50 | |
Technical parameter
Note: For transformers with a rated capacity of 500kVA and below, the load loss values above the slash line in the table apply to the Dyn11 connection group, and the load loss values below the slash line apply to the Yyn0 connection group; The weight and length, width and height data in the table are for reference only.