Re-energization of an upstream circuit breaker fails to ground.

Incident Investigation

Re-energization of an upstream circuit breaker fails to ground.

September 30, 2018

Electrical

Reference Number:

II-751517-2018 (#8849)



Location: Saanich

Regulated industry sector: Electrical - High voltage electrical system (greater than 750V)
 

Impact

Injury
 

Injuries: 0

Injury description: NA

Injury rating: NA

Incident rating: Moderate
 

Incident overview

During a site re-energization of an upstream circuit breaker, the main 25KV to 600V 3 phase 1000KVA transformer failed to ground.

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