The HY5WS-10/30 is a gapless metal-oxide surge arrester designed for 6kV power systems. It consists of series-connected zinc oxide varistors without any spark gaps, enclosed in a silicone rubber insulating housing. The arrester provides effective 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 metal-oxide varistors
Silicone rubber housing with excellent UV resistance and hydrophobicity
No series or parallel spark gaps for fast response
Compact support-type structure for easy installation
Excellent nonlinear volt-ampere characteristics
Reliable sealing against moisture ingress
| Model | HY5WS-10/30 | |
|---|---|---|
| System rated voltage | 6kV (50Hz AC) |  |
| Arrester rated voltage | 10kV | |
| Lightning impulse residual voltage | ≤30kV | |
| Application | For systems with isolated or compensated neutral | |
| Frequency | 50Hz | |
| Standards compliance | IEC 60099-4, GB11032 | |
Applications
Substations and power plants
Medium voltage switchgear
Transformer protection
Distribution panels
Industrial power networks
