Title :
A novel HV system for multi specimens aging tests under partial discharges and temperature
Author :
Candela, R. ; Romano, P. ; Schifani, R.
Author_Institution :
Dipartimento di Ingegneria Elettrica, Palermo Univ., Italy
Abstract :
In this paper a novel high voltage (HV) system for testing five specimens in parallel under different combinations of voltage and temperature is presented. When partial discharges (PD) are present, the system allows under a computer supervision the cyclic acquisition of PD signals coming out from each specimen by mean of a new partial discharge phase resolved analyser (PDPRA) built in our laboratory. Each specimen is provided by a suitable circuit breaker, ad hoc designed, that disconnects the high voltage (HV) side of the broken-down specimen, without the central HV supply is interested. The specimen temperature regulation (up to 100°C) is performed by a pt100 thermo regulator in a silicon oil bath. Finally, some tests have been performed to check the absence of any mutual PD interference between the specimens
Keywords :
ageing; high-voltage techniques; insulation testing; partial discharge measurement; 100 C; circuit breaker; computer aided instrumentation; dielectric material; electrical insulation; high voltage system; multi-specimen aging test; partial discharge phase resolved analyser; temperature regulation; Aging; Circuit breakers; Laboratories; Partial discharges; Regulators; Signal analysis; Signal resolution; System testing; Temperature; Voltage;
Conference_Titel :
Electrical Insulation and Dielectric Phenomena, 2000 Annual Report Conference on
Conference_Location :
Victoria, BC
Print_ISBN :
0-7803-6413-9
DOI :
10.1109/CEIDP.2000.884062
