A note on the impulse testing of power transformers
作者:
T.F.Monahan,
期刊:
Proceedings of the IEE - Part II: Power Engineering
(IET Available online 1953)
卷期:
Volume 100,
issue 73
页码: 35-37
年代: 1953
DOI:10.1049/pi-2.1953.0006
出版商: IEE
数据来源: IET
摘要:
Difficulties are sometimes encountered in generating the standard 1/50-microsec impulse-voltage wave, free from excessive oscillations, when testing low-voltage windings of large transformers. The paper shows that a circuit using inductance and resistance to control the wavefront can be made to give a better waveshape than a circuit in which the shape of the front is controlled by resistance and capacitance. The improvement is illustrated by waveforms taken during tests on a 33-kV 30-MVA transformer winding. Given suitable circumstances, the suggested method of wave control should overcome some of the difficulties previously encountered.
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