Polymeric Arresters
765 kV
Our polymer-housed arresters divert surge currents safely to ground, safeguarding transformers, switchgear, and other critical assets from costly damage and downtime.
Characteristics
- Engineered MOV stack geometry ensures uniform heat dissipation.
- Wide-temperature sealing system (−40 °C to +60 °C).
- Low-resistive-current MOV blocks cut continuous leakage and watts-loss.
- Pressure-relief venting safely manages internal fault energy at end-of-life, eliminating shrapnel risk.
- Complies to IEC 60099-4, IEEE C62.11.
Technical
- Rated voltage (Ur): up to 765 kV system, configured per project specification.
- Continuous operating voltage (Uc): selected to match system temporary overvoltage (TOV) profile.
- Nominal discharge current (In): 20 kA, 8/20 µs — IEC station-class and IEEE heavy-duty distribution duty.
- Short circuit currents up to 63 kA.
- Available structures: Cage, Tube and Filament.
