Ferroresonance Causing Sustained High Voltage at A De-energized 138 kV Bus: A Case Study

Published: May 1, 2019
Abstract
Ferroresonance causes overvoltage and excessive current flow on potential transformers (PT), which can cause substantial damage to PTs and interrupt power system normal operation. In this paper, a sustained overvoltage event on a de-energized 138 kV bus after circuit breakers were opened to clear a phase to ground fault at a Canadian transmission utility power grid is investigated. The PSCAD simulation model is created and validated using field...
Paper Details
Title
Ferroresonance Causing Sustained High Voltage at A De-energized 138 kV Bus: A Case Study
Published Date
May 1, 2019
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