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Homepage>BS Standards>29 ELECTRICAL ENGINEERING>29.180 Transformers. Reactors>BS EN 60146-1-3:1993 Semiconductor convertors. General requirements and line commutated convertors Transformers and reactors
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immediate downloadReleased: 1993-05-15
BS EN 60146-1-3:1993 Semiconductor convertors. General requirements and line commutated convertors Transformers and reactors

BS EN 60146-1-3:1993

Semiconductor convertors. General requirements and line commutated convertors Transformers and reactors

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Standard number:BS EN 60146-1-3:1993
Pages:16
Released:1993-05-15
ISBN:0 580 22131 8
Status:Standard
DESCRIPTION

BS EN 60146-1-3:1993


This standard BS EN 60146-1-3:1993 Semiconductor convertors. General requirements and line commutated convertors is classified in these ICS categories:
  • 29.180 Transformers. Reactors

This Part 1-3 of the International Standard relates, in general, to those characteristics wherein convertor transformers differ from ordinary power transformers. In all other respects, the rules specified in IEC 76 shall apply to convertor transformers also, as far as they are not in contradiction with this standard.

It should be borne in mind that a rectifier transformer operates with non-sinusoidal current waveshape. In single-way connection, the current in each cell winding contains a d.c. component which calls for special attention in design and testing. In some cases, a special design is necessary when external short-circuits and cell failures would cause abnormal stress.

For certain types of transformers, the waveshape of the normal operating voltage is non-sinusoidal. The core loss of such equipment is to be determined by applying a sinusoidal voltage having the same half-cycle arithmetic mean value and the same fundamental frequency as the voltage applied in service.


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