Variable shunt reactor

oil-filled

Overview
High-voltage shunt reactor designed to neutralize the capacitive effect of extra-high-voltage (EHV) long-distance transmission lines. It absorbs excess reactive power, suppresses harmonic currents and improves overall power transmission efficiency and quality.

Key features

• Low loss: radial iron-disc core with high fill factor and uniform magnetic flux distribution for minimal no-load losses and negligible leakage flux.
• Low noise: iron discs separated by non-magnetic spacers and vacuum-impregnated with epoxy resin to reduce vibration and ensure ultra-low operational noise.
• High reliability: engineered for safe, stable long-term operation in high-voltage transmission environments.
• Functions: compensates capacitive effect of long lines, absorbs reactive power, improves transmission efficiency, and suppresses harmonic currents to enhance power quality.

Technical specifications (summary)

• Voltage level: up to 750 kV
• Cooling medium: mineral oil or ester oil
• Voltage regulation: fixed or adjustable

Technical specifications

• Application: compensation of capacitive effect on EHV long-distance transmission lines
• Core/construction: radial iron-disc core with high fill factor and uniform magnetic flux
• Core separation: special non-magnetic spacers between iron discs
• Impregnation: vacuum-impregnated assembly with epoxy resin for vibration damping and noise reduction
• Performance advantages: low no-load loss, negligible leakage flux, ultra-low vibration and noise, high operational reliability
• Functions: reactive power absorption, harmonic suppression, power quality improvement
• Available voltage rating: up to 750 kV
• Cooling options: mineral oil or ester oil
• Voltage regulation modes: fixed or adjustable