Electrical Earth
Electrical Earth
(OP)
In AC Power Transmission, what is the reason for earthing the Neutral?
For in principle at least, it would be possible to Transmit AC Power with a floating Live and Neutral.
Philiptechie
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RE: Electrical Earth
-Control voltage to earth (Ground voltage reference = 0)
-Proper operation of protective devices
-Voltage stabilization.
-Path for umbalance current.
-Limits the overvoltage stress over insulation (Smaller EFF or COG)
-Reduction of short hazard in the event of accidental contact with live parts.
-Code compliances where applicable.
RE: Electrical Earth
”Those who do not learn from history are destined to repeat it” is not meant as a trite response.
Studying others’ mistakes is an easy way to save money.
RE: Electrical Earth
cuky2000 thank you for your reply.
I had'nt realised there could be several reasons for this.
The intermediate texts in electrical engineering I've looked at don't have the answers.
Do you have any suggested references on the web ?
RE: Electrical Earth
Enclose are few references that could help. I recommend searching in this forum and the Internet for additional info.
If you require further assistance, please fill free to post your questions.
Good luck.
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http://www.usace.army.mil/inet/usace-docs/eng-manuals/em1110-2-3006/c-13.pdf
http://www.ece.uidaho.edu/ee/power/EE525/lectures/L13/lect13.pdf
http://standards.ieee.org/colorbooks/sampler/Greenbook.pdf
http://www.geindustrial.com/products/applications/ngr.pdf?SMSESSION=NO
RE: Electrical Earth
You might refer to IEEE Std C62.92.5-1992 …Application of Neutral Grounding in Electrical Utility Systems, Part V Transmission Systems and Subtransmission Systems. Table of contents at http://standards.ieee.org/reading/ieee/std_public/description/surge/C62.92.5-1992_desc.html
RE: Electrical Earth
Regards,
Lyledunn