대한전기학회논문지:전기물성ㆍ응용부문C (The Transactions of the Korean Institute of Electrical Engineers C)

대한전기학회 (The Korean Institute of Electrical Engineers)
권호 표지

고압전동기 고정자 권선에서 부분방전 펄스의 전송

Propagation of Partial Discharge Pulse in High Voltage Motor Stator Windings

  • 발행 : 2003.11.01
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초록

This paper is to investigate how partial discharge pulse signal can flow in 6.6㎸ motor stator windings. Pulse propagation is experimentally analyzed in stator windings using a variety of frequency-domain techniques. The experiments were performed on two stator windings in the laboratory. Spectrum analyzer(9KHz to 3㎓) with tracking generator(100kHz to 3㎓) was used. Sweep time of the tracking generator was looms. The frequency spectrum of the response signal was detected by active FET probe(1㎓). The active FET probe has a flat amplitude response up to 1㎓ without high frequency attenuation. The stator winding acts as a low-pass filter below 600KHz, the high-frequency components being highly declined. The resonance peaks show about 1.1MHz and 2MHz in low frequency of No. 1 and No. 2 stator windings, respectively. This low-frequency range indicates that attenuation is low. The peaks of partial discharge magnitude show about 900MHz, 1.6MHz in No. 1 stator winding and about 800KHz, 1.4MHz in No. 2 stator winding.

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참고문헌

  1. G. Stone, 'Importance of Bandwidth in PD Measurement in Operating Motors and Generators', IEEE Trans. on Dielectrics and Electr. Insul., Vol. 7, No. 1, pp. 6-11, 2000 https://doi.org/10.1109/94.839335
  2. J. Kemp, H. Zhu, H. G. Sedding, J W. Wood and W. K. Hogg, 'Towards a new partial discharge calibration strategy based on the transfer function of machine stator windings', IEE Proc.-Sci. Meas. Technol., Vol. 143, No. 1, pp. 57-62, 1996 https://doi.org/10.1049/ip-smt:19960021
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  5. IEEE Std 1434-2000, IEEE Trial-Use Guide to the Measurement of Partial Discharges in Rotating Machinery
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