부분방전 모니터링에 의한 온라인 절연 진단 = On-line Insulation Diagnostic by PD Monitoring

다국어 초록 (Multilingual Abstract)

- The paper considers the relation between on-line monitoring and diagnostics on the one hand and high-voltage (HV) withstand and partial discharge (PD) on-site testing on the other. HV testing supplies the basic data (fingerprints) for diagnostics. In case of warnings by on-line diagnostic systems, off-line withstand and PD testing delivers the best possible information about defects and enables the classification of the risk. Because alternating voltage (AC) is the most important test voltage, the AC generation on site is considered. Frequency tuned resonant (ACRF) test systems are best adapted to on-site conditions. They can be simply combined with PD measuring equipment. The available ACRF test systems and their application to electric power equipment -from cable systems to power transformers - is described.

참고문헌 (Reference)

1 "Techniques for high-voltage testing" 1995

2 "Insulation coordination. Part 1: Definitions, principles and rules" 1993

3 "High voltage test techniques; Part 3, Definitions and requirements for on-site tests" 0000

4 "High voltage test techniques - Part 1: General definitions and test requirements" 1989

5 "HV switchgear and controlgear. Part 203: Gas insulated, metal-enclosed switchgear for rated voltages above 52 kV" 2003

6 J. R. Weidner, "Diagnostic Testing of stator coils of large rotating machines by ACRF test systems" 191-196, 2004

7 F. Schreiter, "Combined diagnostic and withstand tests to upgrade the operational voltage of 10 kV XLPE cables" 2003

8 "Cables with extruded insulation and their accessories for rated voltages 30 to 150 kV respectively 150 up to 500 kV" 2002