Register to reply

TT earthing systems & protection against over voltage

by frambo5
Tags: earthing, protection, systems, voltage
Share this thread:
frambo5
#1
Nov22-11, 12:03 PM
P: 1
in a TT earthing system the earth fault loop impedence is high why ? do u need an RCD as well employed with a TT earthing system so as to cut the disconection time down?

In protection against overvoltage & undervoltage where is the contractor coil situated in the transformer or in the consumer unit (if thats how protection is provided)? ( i feel kinda retarded asking this question)
Phys.Org News Partner Engineering news on Phys.org
Eye implant could lead to better glaucoma treatment
Electricity helping the blind navigate
Lawsuits challenge US drone, model aircraft rules (Update)

Register to reply

Related Discussions
Earthing & Lightening Protection for a Home on a Mountain Top Electrical Engineering 9
How Transmission Lines Transposition could affect Protection systems? Electrical Engineering 5
High Impedance Earthing - unearthed (IT) systems Engineering, Comp Sci, & Technology Homework 0
High Impedance Earthing - IT/Floating earth systems Electrical Engineering 0