Convertor Transformers for HVDC Systems


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Convertor Transformers for HVDC Systems
1010603 Convertor Transformers for HVDC SystemsI.C. TayalC.M. SharmaS.C. BhageriaThe transformers used in HVDC systems usually named as the convertor transformers have different design requirements, due to superimposed DC voltages and currents. Convertor transformers for 12 pulse rectification have three windings, one star connected AC winding and two valve windings–one connected in delta and the other in star. The AC winding is connected to AC system, whereas the valve windings are connected to convertors which, in turn, are connected in series to build up the required level of DC voltage.
Citation
BHEL (Bharat Heavy Electricals Limited): Transformers, Second Edition. Convertor Transformers for HVDC Systems, Chapter (McGraw-Hill Professional, 2003), AccessEngineering Export