Title :
Partial discharge diagnostic
Author :
Muhr, M. ; Woschitz, R.
Author_Institution :
Inst. & Res. Inst. of High Voltage Eng., Tech. Univ. Graz, Austria
Abstract :
The partial discharge (PD) measurement is a very well known possibility to assess the quality of an insulation system. The aim of the PD-diagnostic is the detection of destruction of electrical insulation as a result of electrical stress especially of PD during operation. Therefore many methods of PD-measurement techniques have been developed in the last years. Additional to the common electrical PD-measurement with power frequency also very low frequency (VLF) and high frequency (HF) methods are applied to detect PD. In this contribution also the results of practical application of PD detection and PD localisation for cables and accessories using test voltages with 50 Hz and 0,1 Hz are represented and discussed
Keywords :
insulation testing; partial discharge measurement; power cable insulation; power cable testing; 0.1 Hz; 50 Hz; HF technique; VLF technique; electrical stress; insulation system diagnosis; partial discharge measurement; power cable; Acoustic testing; Cables; Capacitive sensors; Circuit testing; Dielectrics and electrical insulation; Directional couplers; Electric variables measurement; Frequency; Partial discharges; Voltage;
Conference_Titel :
Properties and Applications of Dielectric Materials, 2000. Proceedings of the 6th International Conference on
Conference_Location :
Xi´an
Print_ISBN :
0-7803-5459-1
DOI :
10.1109/ICPADM.2000.875672
