TMC has a long and successful history of production of oil cooled power and distribution transformers. TMC produces oil cooled transformers with capacities up to 30MVA and voltages up to 72kV.
TMC oil cooled rectifier transformers are designed, manufactured and tested in accordance with the latest issue of IEC and Australian standards according to customer specifications.
Rectifier Transformer Characteristics
Transformers for 12 pulse and 24 pulse rectifiers. Star/Delta, interconnected star (zigzag) and polygon connections. Close coupling between secondaries is normal, loose coupling is also available.
For 24 pulse systems, the interphase transformer can be designed and installed in the tank along with the two transformers. Secondary terminations can be arranged to align with rectifier connections. Duty cycle derating is available.
TMC oil cooled transformers can be supplied with fans and pumps to increase the rated capacity (kVA). Forced directed oil circulation and/or forced air cooling of radiators permits a continuous power increase of up to 25% above the rated capacity.
Fans can be used to economically provide extra capacity for overload conditions such as cyclic load peaks and traction loads.
Information Required with Enquiry:
Voltages (at no-load)
Voltage tapping range.
Natural or fan cooling
Number of Phases
Connection Symbol (Vector group)
Rectifier Transformer connection type to AS1955.
Enclosure Protection Rating
Temperature Sensing Equipment
Current Sensing Equipment (CT's).
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TMC has been a leading enterprise in the field of transformer design and manufacture since 1937.
A wholly owned Australian company with its head office in Victoria, TMC excels at providing high quality induction equipment to the electrical power industry, with an emphasis on meeting exacting specifications and standards, while minimising cost.
TMC is fully accredited to the international quality standard ISO9001, and continues to build on a tradition of product excellence and customer focus.
Research and Development
The TMC Research and Development department developed TMC’s own cast resin transformer technology which has gained wide acceptance in the mining and building construction industries.
TMC’s cast resin transformers are exported to the Middle East and Asian markets and TMC casting technology is licensed to companies in Asia.
The TMC Research and Development department routinely studies cast resin electro-mechanical phenomena providing TMC with the best possible understanding of all aspects of cast resin transformer technology
TMC now offers a comprehensive range of technology products and services.