Affiliation:
1. Ningxia Grid Corporation
2. Xi′an Jiaotong University
Abstract
According to IEC60060-1, IEC60060-2 requirements, on-site tests for the high voltage apparatus can not be achieved due to many external factors such as the huge impulse voltage source and external electrical and magnetic fields, weather condition, etc. Therefore, IEC60060-3 points out the impulse waveforms for the high voltage apparatus during on-site tests, one of the impulse waveforms is the oscillating switching impulse, but the oscillating switching impulse source with high amplitude is a bulky test equipment which is not suitable for the on-site test, consequently the demands for portable oscillating switching impulse source is urgent. This paper presents that the high oscillating switching impulse voltage can be generated by a low oscillating switching impulse voltage with the power transformer which is the test object, the simulation and experiment results show this method can be used for the power transformer during oscillating switching impulse on-site test.
Publisher
Trans Tech Publications, Ltd.
Reference6 articles.
1. Thione, L., Spinelli, A., bossi, A., Sesto, E., Sigaudi, G., Babare, A. Switching Impulse Tests of EHV and UHV Transformers. IEEE Transactions on Power apparatus and systems, 1980, 2, 779-789.
2. IEC 60060-3 High Voltage Test Techniques Part 3: Definitions and Requirements for On-site Tests[S], (2005).
3. James H. Harlow. Electric power transformer engineering. Boca Raton, FL: CRC Press, (2004).
4. Renyu Zhang, Changyu Chen and changchang wang. High voltage technology. Beijing : Tsinghua University Press, (2003).
5. Satoshi Matsumoto. Analysis and Evaluation of Waveform Parameters for Oscillating Impulse Voltage. IEEE Transactions on electrical and electronic engineering. 2007, 2, 651–656.