Capacitor switching can cause significant transients at both the switched capacitor and remote locations.
Reactors > Series Reactors
Inrush Current Limiting Reactor
The most common transients are:
- Overvoltage on the switched capacitor during energization
- Voltage magnification at lower-voltage capacitors
- Transformer phase-to-phase over voltages at line termination
- Inrush current from another capacitor during back-to-back switching
- Current outrush from a capacitor into a nearby fault
- Dynamic overvoltage when switching a capacitor and transformer simultaneously
Capacitor inrush/outrush reactors are used to reduce the severity of some of the transients listed above in order to minimize dielectric stresses on breakers, capacitors, transformers, surge arresters, and associated station electrical equipment. High-frequency-transient interference in nearby control and communication equipment is also reduced.
Capacitor inrush/outrush reactors are used to reduce the severity of some of the transients listed above in order to minimize dielectric stresses on breakers, capacitors, transformers, surge arresters, and associated station electrical equipment. High-frequency-transient interference in nearby control and communication equipment is also reduced.
