An Analysis of VEPCO'S 34.5 KV Distribution Feeder Faults as Related to Through Fault Failures of Substation Transformers
- 1 September 1978
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Power Apparatus and Systems
- Vol. PAS-97 (5) , 1876-1884
- https://doi.org/10.1109/tpas.1978.354683
Abstract
A study of Vepco's 34.5 kV distribution feeder faults was conducted by installing fault recording equipment in some of their substations. The data was analyzed on a statistical basis and provided information relating to the magnitude, frequency, duration and types of faults seen by the substation transformers. Consideration of the high number of substation transformer failures, the cumulative aging effects of short circuits and their operating experience with instantaneous reclosing brought about changes in Vepco's standard reclosing practices. These changes should reduce the number of short circuits on these transformers and thereby decrease the probability of failure.Keywords
This publication has 4 references indexed in Scilit:
- A proposed functional life test model for power transformersIEEE Transactions on Power Apparatus and Systems, 1977
- The combined effects of thermal aging and short-circuit stresses on transformer lifeIEEE Transactions on Power Apparatus and Systems, 1976
- Mechanical strength of power transformers in serviceProceedings of the IEE - Part A: Power Engineering, 1957
- Mechanical Forces in Interleaved Rectangular Pancake Transformer Coils [includes discussion]Transactions of the American Institute of Electrical Engineers. Part III: Power Apparatus and Systems, 1954