The HY5WS-10/30 is a gapless metal-oxide surge arrester designed for 10kV power distribution systems. It features high-quality zinc oxide varistors with excellent nonlinear characteristics, enclosed in a silicone rubber composite housing. This distribution-class arrester provides reliable protection for electrical equipment against lightning overvoltages and switching surges.
Model Designation
HY: Composite housing zinc oxide arrester
5: Nominal discharge current 5kA
W: Gapless type (no spark gaps)
S: Distribution class for overhead lines
10: Arrester rated voltage 10kV
30: Maximum residual voltage 30kV
Gapless design with series-connected zinc oxide varistors
Silicone rubber housing with excellent UV resistance
Fast response time with low residual voltage
Compact and lightweight for easy installation
Reliable sealing against moisture ingress
| Model | HY5WS-10/30 | |
|---|---|---|
| System nominal voltage | 6kV |  |
| Arrester rated voltage | 10kV | |
| Continuous operating voltage | 8.0kV | |
| DC reference voltage (U1mA) | ≥15.0kV | |
| Lightning impulse residual voltage | ≤30kV | |
| 2ms square wave withstand capacity | 150A | |
| 4/10μs high current impulse withstand | 65kA | |
| Standards compliance | GB11032, IEC 60099-4 | |
Applications
10kV distribution transformers
Overhead transmission lines
Pole-mounted switchgear
Distribution substations
Industrial power systems
Cable termination boxes
