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Archive: Category «Transformers»

Case study: Failure of a transformer & switchgear buses due to a ferroresonance event

First of all, it’s good to know that the possibility of a transformer ferroresonance condition rapidly increases as the transformer is closer to generator zone. This condition may occur when…...

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Aug 23, 2019 | Edvard

Case study of transformer failure due to a ferroresonance occurrence

The case of phase-to-phase fault in a 13.8 kV switchgear caused by heavy rain

In this case study we describe a 13.8 kV switchgear phase-to-phase fault due to by heavy rain evolving into a three-phase fault that was cleared by transformer numerical relays. The…...

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This content is available for Premium members only. Premium membership gives you an access to specialized technical articles and other extra premium content (electrical guides and software). Apply 20% discount code: EEP08PR (Expires on August 30th 2019) Login ♛Register ♛

May 17, 2019 | Edvard

The case of phase-to-phase fault in a 13.8kV switchgear caused by heavy rain