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Modeling and evaluation of overvoltage

A case study will be presented demonstrating modeling of overvoltage in a moderately sized system involving medium voltage vacuum breakers, cables and transformers. The focus is on simulating high frequency overvoltage generated by circuit breaker prestrikes and re-ignitions and evaluating the impacts on transformer insulation.
-Results obtained from a customized breaker TRV model which is capable of controlling the capability of switching high frequency current will be presented.
-The
Author(s): Jin Yang - Ener-Phase Solutions
Type: EMTP Virtual User Conference 2020
Downloaded: 0
Date: 2021-06-21
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