Constant Voltage Transformer It's basic principle is a power transform by ferro-resonant. Features: ● Function: There are primary coil and secondary coil on one core only, but separated by a shunt, so their voltage ratio don't agree the corresponding of their coil turns ratio, then the secondary output voltage keeps constant and don't various as input voltage. ● Construction: The magnetic flux density of CVT core , there are two or three different regions saturated and unsaturated. ● Only two reliable parts: one transformer and one set of condenser, it have long life for use. ● Suppression to disturbance: There are high suppression or attenuation to surge pulse or other disturbance in line power. ● Filtering for 3rd, 5th harmonic, especially effective for 3rd harmonic up to 90%. ● Wide constant voltage range: input voltage various ±30%, output only±3.5~±2%. ● Due to these good features, CVT has wide be used in various area, as power transformer in instrument, especially where has high contamination in main power. ● Capacity: single phase 0.1KVA~15KVA three phase 3KVA~45KVA