Regulating transformers are supplied by ISMET with a rated output of up to 120 kVA. Whether single-phase or three-phase, in toroidal or column design, with separate or autotransformer winding – ISMET offers the complete spectrum of regulating transformers. Depending on the local circumstances, the regulating transformers are equipped with manual or motorised operation and in an open design or in a housing with protection rating of up to IP54. Motorised versions can be equipped with an AC drive or DC drive. Different regulating times are possible.
The three-phase variable toroidal transformer DRU-M with autotransformer winding is delivered complete with actuator and a 10 V interface regulating unit. The variable toroidal transformer for a current of 25 A regulates a voltage range of 0 to 400 V in a regulating time of 27 seconds. It is delivered complete with actuator (230 V / 50 Hz) and limit switches for minimum and maximum positions.