The HY5WR-10/27 is a gapless metal-oxide surge arrester specifically designed for protection of shunt capacitor banks in 10kV power systems. Featuring zinc oxide varistors enclosed in a silicone rubber housing, it provides reliable protection against switching overvoltages and lightning surges during capacitor bank operations.
Model Designation
HY: Composite housing zinc oxide arrester
5: Nominal discharge current 5kA
W: Gapless type
R: Capacitor bank protection (D: DC application (HVDC and traction systems))
10: Rated voltage 10kV
27: Maximum residual voltage 27kV
Gapless design for fast response
Silicone rubber housing with UV resistance
High energy absorption for switching surges
Compact and lightweight construction
Reliable moisture sealing
| Model | HY5WR-10/27 | |
|---|---|---|
| Rated voltage | 10kV |  |
| DC reference voltage | ≥14.4kV | |
| Lightning residual voltage | ≤27kV | |
| 2ms square wave withstand | 400A | |
| Standards | GB11032, IEC 60099-4 | |
Applications
Shunt capacitor bank protection
Switching surge suppression
Reactive power compensation equipment
Power factor correction systems
