Variable Voltage Auto Transformer

Unistat for continuously variable voltage auto-transformer (Variacs) it is most effective device for stepless, breakless & continuous control of AC voltage & thereof for various parameters, depended on AC voltage Unistat. The basic is meant for operation from a nominal input voltage of 240V AC & can give output voltage anywhere between 0 to 240V or 0 to 270V AC by simple transformer action. Three such connected electrically in star and mechanically in tandem, become suitable for operation from a nominal input Unistat Voltage of 415V 3Ph AC and can give output anywhere 0 to 415 V or 0 to 470 V.Resin moulded Unistat is basically a variable Auto - Transformer which is party or fully Molded in reniforced polyester resin. This has adjustable spindles which allows easy assembling of flush, table or Motorized Type in Single or three phase models. These models are designed upto 120% continuous load.