English Oil Cooled Transformers for Motor Starting TMC produces oil cooled motor starting auto-transformers to suit all motor capacities. Motor Starting Transformer Characteristics Motor starting transformers are auto transformers with tappings in the range of 50% to 70% of rated voltage (customer specified). The motor to be started is switched through the auto transformer in such a way as to start the motor at a lower voltage to minimise starting load and the associated supply voltage drop. This method is often referred to as the “Korndorfer Starter” method. Information Required with Enquiry: Voltages (at no-load) Voltage tapping range. Number of phases (normally 3) Operating frequency Motor rating Motor locked-rotor current Motor start duration (seconds) Number of starts per hour Ambient conditions Design standard Enclosure protection rating Temperature sensing equipment Current sensing equipment (CT’s). Standard Cast Resin Transformers General Information EN 50588 Um≤24kV EN 50588 Um=36kV EN 50541 Um≤12/28/75 kV EN 50541 Um=17,5/38/95 kV EN 50541 Um=24/50/125 kV EN 50541 25kV Um=36/70/145 kV EN 50541 Um=36/70/170 kV Standard Transformers Gallery Special Transformers Special Cast Resin Transformers Dry Type Transformers Oil Cooled Transformers Oil Cooled Transformers for Motor Starting Oil Cooled Transformers for Power and Distribution Oil Cooled Transformers for Rectifiers Oil Cooled Transformers for System Earthing Transformer Gallery Reactors Shunt Reactors Current Limiting Reactor Damping Reactors Reactors for Tuning Smoothing Reactors Neutral Earthing Reactors Reactor Gallery Transformers Manufacturing Company España S.A.U. Poligono Bildosola, Parcela B1 48142 Artea (Bizkaia) España Email: ventas@tmc.com.au Tel: +34 94 631 22 80 Fax: +34 94 631 45 24 Transformers Manufacturing Company Pty Ltd 19 Ewing Street Brunswick Melbourne Victoria 3056 Australia. Email: sales@tmc.com.au Tel: +61 3 9356 8700 Fax: +61 3 9356 8701 TMC TRANSFORMERS MANUFACTURING COMPANY © 2014 BY SIROPE