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General Consideration for the Partial Discharge Detection Sensitivity

  • S. Matsumoto
  • T. Umemura
  • H. Okubo
  • M. F. Fréchette
  • C. Hudon

Abstract

PD detection sensitivity is quite an important factor for the PD detection system. In this paper, to compare with the PD detection sensitivity, experiments are carried out using three kinds of insulation defects. Magnitude of detected PD charges is different case by case, however, estimated net charge of PD for the same background electric field is nearly the same.

Equivalent circuit for PD sensitivity is also discussed. The ratio of net charge divided by apparent charge is about 15 for free particle in actual 300kV GIB.

Keywords

Partial discharge (PD) SF6 gas insulation PD measurement 

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References

  1. [l]
    Y.Hasegawa,K.Izumi,A.Kobayashi,S.Wakabayashi,H.Murase,M.Akazaki,S.Menju: Investigation on Phenomena Caused by Abnormalities in Actual GIS; 93 SM 391-3 PWRDGoogle Scholar
  2. [2]
    S.Okabe, T.Kawashima, Y.Shimoda, S.Matsumoto et al :Decay characteristics of the residual voltage caused by a metallic particles in GIS; Proceedings of the Eleventh Annual Conference of Power & Energy Society. IEE of Japan, Vol.B, Aug.2-4, 2000Google Scholar
  3. [3]
    E.Gulski et al: Knowledge-based Rules for PD Diagnosis of HV Components in Service; CIGRE TF 15.11.33.03.02 (2001)Google Scholar

Copyright information

© Springer Science+Business Media New York 2001

Authors and Affiliations

  • S. Matsumoto
    • 1
  • T. Umemura
    • 1
  • H. Okubo
    • 2
  • M. F. Fréchette
    • 3
  • C. Hudon
    • 3
  1. 1.Toshiba CorporationJapan
  2. 2.Nagoya UniversityJapan
  3. 3.Hydro QuébecCanada

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