Yahoo Answers is shutting down on May 4th, 2021 (Eastern Time) and beginning April 20th, 2021 (Eastern Time) the Yahoo Answers website will be in read-only mode. There will be no changes to other Yahoo properties or services, or your Yahoo account. You can find more information about the Yahoo Answers shutdown and how to download your data on this help page.
Trending News
what would cause a main electrical feeder to trip at a substation?
what would cause a main electrical feeder to trip at a substation?
3 Answers
- hairyguyuk2002Lv 76 years ago
Many and various faults such in rural country side overhead high voltage distribution cables that in windy conditions blow into adjacent trees and a high voltage auto - re close circuit breaker trips out for a few seconds, then re sets. Or an underground distribution cable fault caused by accidental damage maybe an excavator or a worker with a pneumatic pick..Or maybe an overload on the low voltage side causes a circuit breaker to trip out. The reliability and heavy engineering construction of modern HV switchgear precludes equipment fault in only the rarest occurrence.
Source(s): Previous experience of managing private HV MOD distribution systems and stand - by generation plant in UK - WhateversLv 76 years ago
Well, the most recent time, it was somebody trying to steal the copper tehre.
