Continuously Variable Voltage Auto-transformers

We are leading manufacturer supplier and exporter of Continuously Variable Voltage Auto-Transformers in Kolkata West Bengal India. These are the most effective devices for stepless breakless & continuous control of AC voltage & therefore for various parameters dependent on AC voltage. The basic Dimmerstat is meant for operation from a nominal input voltage of 240V 1ph AC & can give output voltage anywhere between 0 to 240V or 0 to 270V AC by simple transformer action. Three such Dimmerstats connected electrically in star and mechanically in tandem become suitable for operation from a nominal input voltage of 415V 3Ph AC and can give output anywhere between 0 to 415V or 0 to 470V.


Features:

a c Simple rugged construction.
a c Coils made from high grade CRGO Silicon Steel & 99.9% pure copper.
a c Output voltage variation is smooth continuous break less & linearly proportional to angular rotation.
a c High efficiency.
a c Negligible waveform & power factor distortion.
a c Excellent short time overload capacity.
a c Remote operation possible by motorization.
a c Wide range of current ratings.
a c High quality carbon brush used for current collection.