36kV oil-immersed voltage regulator: 33-34.5kV, normal current depends on capacity; lightning impulse 200kV, short-time fault current 14.2kA per IEC 60076-5, making capability per transformer standards. For overhead radial/open-ring feeder regulation.
This oil‑immersed voltage regulator adopts ONAN cooling, on‑load tap‑changer with battery backup, Auto‑Local‑Manual operation mode and comprehensive alarm signal outputs. It complies with IEC 60076‑1/5/7/10/21, IEC 60137 and other standards, suitable for C5 high atmospheric corrosivity environment.
Pole - Mounted Single - phase Step Voltage RegulatorVoltage stabilization and compensation overhead voltage regulator 6kV 6.35kV 11kV 15kV 22kV 33kV single phase – IEEE C57.12 for Power Industry
32-step fully automated maintenance-free voltage regulator for 11kV to 33kV, ensuring precise voltage control with long-term reliability.
ONAN oil natural air natural cooling. Top‑oil temperature rise ≤50 K, average winding temperature rise ≤55 K under rated MCR condition. Insulation class is Class‑A.
Main auxiliary supply 230V AC; 2×12V‑60AH battery‑bank with inverter for 30‑minute backup. Upon mains failure, tap‑changer automatically returns to zero‑position; auto switch‑over between main and backup power is provided.
Supports Auto‑Local‑Manual selector, manual crank operation. Signals include tap‑position, tap‑change‑in‑progress, incomplete tap‑change, out‑step, supply‑failure, counter and multiple temperature / pressure / Buchholz alarm & trip signals.
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