Single Phase Digital Variac

Single Phase Digital Variac is basically a variable voltage transformer (auto-transformer) which offers digital accuracy, improved safety and most importantly ease of use. They are normally used to verify Line Regulation of Transformer, Power Supply, UPS etc., which demands monitoring of Input Voltage and Input Current of Unit under Test. In case of traditional manual variacs, user monitors these two parameters with two extra Digital Meters or sometimes with Multimeter, which is expensive. In addition, time is wasted in making connections to external meters. Confusion in wiring may cause damage in meters which is further costly.