Title :
Voltage response measurements for power transformer moisture and ageing condition assessment
Author :
Yao, Zheng Tong ; Saha, Tapan Kumar
Author_Institution :
Sch. of Inf. Technol. & Electr. Eng., Queensland Univ., Brisbane, Qld., Australia
Abstract :
A paper moisture conditioning system has been designed and developed to prepare different moisture level samples for voltage response measurement. The moisture conditioning system has good moisture level predetermining ability. The moisture conditioned samples and the artificially aged samples are tested with the voltage response techniques: decay voltage and return voltage measurement (single cycle). The objective was to see if we could use decay voltage measurement and return voltage measurement to separately investigate the moisture and ageing in the oil impregnated paper insulation. Results from these measurements are presented and discussed in the paper.
Keywords :
ageing; condition monitoring; impregnated insulation; insulation testing; moisture measurement; nondestructive testing; paper; power transformer insulation; power transformer testing; transformer oil; voltage measurement; ageing; artificially aged samples; condition monitoring; decay voltage; moisture level predetermining ability; moisture level samples; nondestructive measurement; oil impregnated paper insulation; oil paper insulation; paper moisture conditioning system; return voltage measurement; voltage response measurement; voltage response techniques; Aging; Dielectrics and electrical insulation; Moisture measurement; Oil insulation; Petroleum; Power measurement; Power transformer insulation; Power transformers; Testing; Voltage measurement;
Conference_Titel :
Transmission and Distribution Conference and Exhibition 2002: Asia Pacific. IEEE/PES
Print_ISBN :
0-7803-7525-4
DOI :
10.1109/TDC.2002.1178338
