CONTINUOUSLY VARIABLE AUTO TRANSFORMERS

Single Phase Portable variacs are meant for laboratories, housed in sheet steel cabinet duly powder coated. All connections are brought out and terminated with a 3 pin cable for easy operation. Input 230/240 volts, single phase AC 50 Hz, Output 0-270 volts, continuously variable. Standard Ratings are given below.

Supreme make continuously Variable Voltage Auto Transformer (VARIAC) , having a movable carbon tip fixed to a brush-arm sliding on a silver plated commutator. Rotation of the brush-arm by either manual or motor drive delivers an output voltage from zero to or above line voltage conforming to IS:5142:1969.

SALIENT FEATURES :
Rugged Construction l Excellent Regulation l High Efficiency l No wave form distortion l Silver Plated Commutator l Low Operating Torque l Smooth & Linear Output l Low Magnetizing Current l Negligible Maintenance & trouble-free long life.

Supreme variacs has been carefully designed. No special care has to be taken to maintain variac Auto transformers in normal environment. The only components needing inspection and maintenance are the carbon tips and the commutator. Timely replacement of carbon tips and cleaning of the commutator surface of foreign particles and accumulated dust will ensure a considerably long maintenance-free and on uninterrupted life of the unit. Normally, variacs up to 28 AMPS are offered in air cooled or oil cooled construction and 40 AMPS and above are offered in oil cooled construction. In very special cases, 40 AMPS and above can also be offered in air cooled construction.