A control transformer, (also known as an industrial control transformer, or a control power transformer, or even a machine tool transformer), is essentially an isolation transformer that provides excellent voltage regulation. A control transformer is very often designed to produce a high level of secondary voltage stability during brief periods of overload condition,

Control transformers are generally used in an electronic circuit that requires constant voltage or constant current with a low power or volt-amp rating.Control transformers incorporate high-quality insulating materials. This insulation is used to electrically insulate turn to turn windings, layer to layer windings, primary to secondary windings and ground.

General purpose transformers can be located close to the load. No vaults are required for installation and no long, expensive feeder lines are needed. Common applications include inductive and resistive loads such as motors, lighting and heating.

Advantages Of Control Transformer

• helpful for defending workers who operate the machines in a very hazardous environment.
• available voltage must be changed to accommodate the voltage required by the load
• General purpose transformers can be located close to the load.