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Ferroresonance results in major damage to multiple facilities electrical service gear

Incident Investigation

Ferroresonance results in major damage to multiple facilities electrical service gear

January 1, 2021

Electrical

Reference Number:

II-1126869-2021 (#20405)



Location: Chilliwack

Regulated industry sector: Electrical - Low voltage electrical system (30V to 750V)

Incident overview:

A massive ferroresonant voltage surge occurred from a high voltage short circuit causing extensive damage to various electrical equipment at multiple facilities fed from the utility high voltage service system. 

 

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