Title :
Condition monitoring of 132 kV bushings
Author_Institution :
Electr. Council Res. Centre, Capenhurst, UK
Abstract :
Interest in diagnostic monitoring of HV plant has increased dramatically as a result of the ever increasing proportion of plant reaching its design life and beyond. This paper provides results of three different sets of diagnostic tests carried out on six 132 kV cable sealing ends and twelve 132 kV oil circuit breaker (OCB) bushings. The techniques include HV DC overvoltage test, HV AC partial discharge (PD) test, HV AC and mV AC capacitance and loss angle measurements, mV DC insulation resistance (IR) test, dissolved gas analysis (DGA) and moisture measurements
Keywords :
bushings; capacitance measurement; high-voltage techniques; insulation testing; loss-angle measurement; moisture measurement; overvoltage; partial discharges; power cables; 132 kV; HV AC partial discharge; HV DC overvoltage test; bushings; cable sealing ends; diagnostic monitoring; diagnostic tests; dissolved gas analysis; loss angle measurements; mV AC capacitance; mV DC insulation resistance test; moisture measurements; oil circuit breaker bushing;
Conference_Titel :
Dielectric Materials, Measurements and Applications, 1988., Fifth International Conference on
Conference_Location :
Canterbury
Print_ISBN :
0-85296-359-9
