Title :
Effects of harmonics on converter transformer load losses
Author :
Ram, Bendapudi S. ; Forrest, J.A.C. ; Swift, Glenn W.
Author_Institution :
Manitoba HVDC Res. Centre, Winnipeg, Man., Canada
fDate :
7/1/1988 12:00:00 AM
Abstract :
Losses were measured during short-circuit tests on a 262.5 MVA, three-phase, five limb converter transformer at various frequencies from 50 Hz to 1 KHz. Using these and the calculated values of the harmonic currents produced by the AC/DC converter, load losses were determined. Variations of these losses with the converter firing angle, with the transformer reactance and with the load were studied. A simple method of loss calculation which has the potential for application at the design stage was developed
Keywords :
harmonics; losses; power convertors; power transformers; short-circuit currents; 262.5 MVA; 3-phase convertor transformer; 50 Hz to 1 kHz; AC/DC converter; converter firing angle; converter transformer load losses; harmonic currents; short-circuit tests; transformer reactance; Circuit testing; Current measurement; Frequency conversion; Frequency measurement; IEC standards; Loss measurement; Oil insulation; Production facilities; Temperature; Valves;
Journal_Title :
Power Delivery, IEEE Transactions on
