The product is special Electric Motor Voltage Regulator/Variable Transformer which is connected in differentforms. lts output voltage
can be regulated smoothly and continuously from zero to the maximum voltage. The provision of an indicating meter is made for all
models. All models find popular application in industries, agriculture and scientific researches, and are particularly suited to serve as
ancillary facilities for such equipment as various machine tools, transistorcurve tracers, projecting TVsets, and instruments in
petroleum industry, etc.