Reactor 1000kvar in Series With Capacitor

Reactor 1000kvar in Series With Capacitor

Reactor 1000kvar

In most electrical systems, power factor correction capacitors are used to compensate reactive power, reduce transmission losses and stabilize voltage.reactor 1000kvar But if the system contains harmonics or has the potential for resonance, installing a reactor (inductor) in series with the capacitor becomes essential to protect the capacitors from damage and ensure the system operates efficiently.

When connected in series with a capacitor bank, the reactance of a reactor is typically 5-7% of its KVAR rating.reactor 1000kvar This value is important because it limits the inrush current that occurs when the capacitor is switched on and prevents harmonic distortion. Reactance also shifts the resonant frequency of the system away from the fundamental multiples, which allows the capacitor to suppress harmonics.

During the design process of the Daya Bay nuclear power plant, Powerside was asked to modify a multiple PowerVar capacitor bank to improve the power factor and reduce harmonics. After performing a harmonic analysis, it was determined that the capacitors were susceptible to harmonic resonance at certain multiples of the fundamental frequency. To prevent this, Powerside installed detuned reactors in series with the capacitor bank to transform it into a shunt filter and avoid amplifying harmonics and causing resonance. The result was a significant improvement in the power factor and reduced harmonics without inciting resonance. Powerside has since been requested to perform this same design on many other sites, including the Hualong 1 reactor.

Tags:smoothing reactor | thyristor controlled reactor | water cooled reactor | water-cooled reactor