Shunt Reactor
Shunt reactors and series reactors are used widely in AC networks to limit overvoltage or shortcut current in power transmission. With a growing number of high-voltage overhead lines in a fast-changing energy environment, both shunt and series reactors play a key role in stabilizing network systems and increasing grid efficiency.
Shunt reactors are able to compensate for this capacitive load providing a solution to:
- Increase network stability
- Maintain an acceptable voltage level and within the limits compatible with network insulation
- Limit transient over voltages induced by switching operations
- Decrease line losses by capacitive current reduction
Key Product Advantages
1. Precise Reactive Power Compensation
- Stabilizes system voltage under light-load or no-load conditions
- Prevents voltage rise in long transmission lines and cable systems
2. Superior Thermal Performance
- Oil-immersed design provides excellent heat dissipation
- Supports continuous operation under high ambient temperatures
- Extends service life with optimized thermal aging performance
3. High Reliability & Long Service Life
- Robust insulation system with mineral oil + high-grade cellulose insulation
- Designed for >25 years service life with minimal degradation
4. Low Loss & Energy Efficiency
- Optimized magnetic circuit reduces core loss and stray losses
- Improves overall grid efficiency
- Lower lifecycle operational costs
5. Low Noise Design
- Advanced core clamping structure and magnetic shielding
- Suitable for urban substations and sensitive environments
6. Easy Maintenance
- Hermetically sealed or conservator-type options
- Equipped with oil level indicator, temperature sensors, Buchholz relay (optional)
- Reduced maintenance frequency
- ANSI and IEC standards
- Applications: utilities, renewables, urban distribution systems, wind farms and industrial
At Varelen, we design and manufacture high-performance shunt reactors engineered for reliability, efficiency, and long service life—even in the most demanding environments.
