What is Ferro resonant voltage stabilizer?
A. Commonly known as CVTs (constant voltage transformers), these devices depend on a technology that is radically different from either tap switched or servo electronic stabilizers. To keep the explanation simple, these devices use a loosely coupled saturated secondary winding resonated by large capacitor. They are extremely rugged. Other than the capacitors, which may need replacing from time to time, there are no electronic or mechanical parts to fail. They also have an inherent ability to suppress normal-mode and inverse mode noise. Because of the saturation of the transformers, impulses cannot penetrate the secondary winding. Due to its inherent filtering ability, literally, any amount of distortion can be supplied to the CVT and its resultant output waveform would exhibit no more than 3 to 5% waveform distortion. Because of its inherent current limiting ability, it is able to withstand overloads and short circuits on its output without any short-term damage. Due to this effect, fe
