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REO is an original manufacturer of high quality power equipment, including electronic controllers, components and electrical regulators.

Motorised transformers

REO type DRRTMoK 3 phase motorised variable transformer
REO type DRRTMoK 3 phase motorised variable transformer

Both variable transformers and potentiometers can be motorised. Normally the reversible motor is powered from the mains supply and the setting time selected, from a few seconds up to several minutes duration, to suit the application requirements. It is also possible to have a DC motor, which can give a faster response time but then a separate DC power supply is required.

Cam operated micro-switches are used as end limits but it is possible to have more micro-switches fitted to the drive shaft for other functions, such as zero or maximum indication signals. REO micro-switch cams have a precision adjustment gear to provide exact, screw-driver, setting for the extra control outputs.

REO provide a range of electronic regulator modules to complement the servo-controlled transformers. These range in degree of sophistication but all include multi-purpose set point input, an effective value comparator, motor raise/lower outputs and sensitivity adjustment.