Title :
On-line diagnostic tests on APT-450 potential transformers
Author :
Berler, Z. ; Golovkov, M. ; Golubev, A. ; Letitskaya, L. ; Rashkes, V. ; Svy, P. ; Sicola, A.J. ; Kane, C.
Abstract :
After the “infant mortality” period, high-voltage potential transformers usually have an extended service life. Due to aging of the insulation, their failures can cause serious system operating problems. Periodic on-line monitoring of the transformer ratio and partial discharge activity could be a good solution in forecasting and preventing such failures
Keywords :
ageing; charge measurement; computerised monitoring; insulation testing; partial discharges; potential transformers; power transformer insulation; power transformer testing; 115 kV; APT-450 potential transformers; extended service life; failures forecasting; failures prevention; high-voltage potential transformers; insulation ageing; on-line diagnostic tests; partial discharge activity; periodic on-line monitoring; system operating problems; transformer ratio;
Conference_Titel :
Electrical Insulation Conference, 1997, and Electrical Manufacturing & Coil Winding Conference. Proceedings
Conference_Location :
Rosemont, IL
Print_ISBN :
0-7803-3959-2
DOI :
10.1109/EEIC.1997.651241
