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Transformers Magazine, Vol. 5 No. 4, 2018.

Original scientific paper

Restoring efficiency, removing sound

Holger Herterich ; Siemens
Franz Klammler ; Siemens
Peter Hamberger ; Siemens
Gerald Leber ; Siemens

Full text: english pdf 1.652 Kb

page 92-98

downloads: 328

cite

Abstract

Increased renewable power generation, HVDC interconnections and geomagnetic effects all bias the AC grid with small direct currents which leads to two negative effects on transformers (theory of half-cycle saturation) increased noise and increased no-load losses. A unique solution is the DC compensation system, which is an add-on to a transformer which eliminates the DC effects. Furthermore, there are dedicated steps available, from pure detection of the problem, preparation of the transformer and measurement, all the way up to a full compensation system.

Keywords

DC bias; half-cycle saturation; geomagnetically induced currents; renewable grid effects

Hrčak ID:

214882

URI

https://hrcak.srce.hr/214882

Publication date:

9.10.2018.

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