Control Transformer

A control transformer is generally used in an electronic circuit that requires constant voltage or constant current with a low power or volt-amp rating. Various filtering devices, such as capacitors, are used to minimize the variations in the output. This results in a more constant voltage or current.
Control Transformers are designed for industrial applications where electromagnetic devices such as relays and solenoids are used, the control transformer maximizes inrush capability and output voltage regulation when electromagnetic devices are initially energized.
Control transformers incorporate high-quality insulating materials. This insulation is used electrically insulate turn to turn windings, layer to layer windings, primary to secondary windings and ground. Control transformers are vacuum impregnated with VT polyester resin and oven-cured, which seals the surface and eliminates moisture. Filling the entire unit provides a strong mechanical bond and offers protection from the environment.

• Rating : Upto 500 KVA - 3 Phase, 4- wire




• Input Voltage : As per customer requirement




• Output Voltage : As per customer requirement




• Frequency : 47 - 53 Hz.




• Winding Copper wound




• Tapping : +/- 2.5 % or 5 % at primary & Secondary (customer requirement )




• Temp. rise : 45 / 50 Degree cel.




• Type of Cooling : Oil cooled / Air cooled




• Duty Cycle : 100 % Continuous




• Wave form distortion : Nil




• No Load : 1 % of rated VA




• Load losses at full load : 3 % of rated VA




• Mounting : Floor or Free on wheel.

FEATURES

• Simple & easy to handle




• Rugged mechanical construction




• Coils made from 99.9% copper.




• C.R.G.O. / C.R.N.G.O. silicon steel laminations




• Excellent voltage regulations & efficiency




• No waveform distortion




• Excellent short time overload capacity.




• Operating temperature - 45° C.




• High short time surge current capacity




• Suitable for indoor use.

APPLICATION

Industrial purpose for control circuits.
Instrumentation supply
Etc..