Previous in Forum: High Voltage Transmission Lines   Next in Forum: Fuses and Potential Transformers
Close

Comments Format:






Change Mode
Close

Subscribe to Discussion:

CR4 allows you to "subscribe" to a discussion
so that you can be notified of new comments to
the discussion via email.

Close

Rating Vote:







Add Vote
8 comments
Rate Comments: Nested
JOPENZ107
Active Contributor

Join Date: Jan 2008
Posts: 14

Protection and Control-Power Distribution

06/08/2009 5:47 AM

How do I work out over current protection for 11KV feeders and transformer ;giving the fault level?
Register to Reply
Interested in this topic? By joining CR4 you can "subscribe" to
this discussion and receive notification when new comments are added.
PWSlack
Guru
United Kingdom - Member - Indeterminate Engineering Fields - Control Engineering - New Member

Join Date: Jan 2007
Location: In the bothy, 7 chains down the line from Dodman's Lane level crossing, in the nation formerly known as Great Britain. Kettle's on.
Posts: 32175
Good Answers: 839
#1

Re: Protection and Control-Power Distribution

06/08/2009 6:08 AM

Sub-contract the job out to someone who knows about this stuff.

One only gets one chance with 11kV - one chance to get it right, that is...

__________________
 "Did you get my e-mail?" - "The biggest problem in communication is the illusion that it has taken place" - George Bernard Shaw, 1856
Register to Reply
JOPENZ107
Active Contributor

Join Date: Jan 2008
Posts: 14
#2
In reply to #1

Re: Protection and Control-Power Distribution

06/08/2009 6:16 AM

Sure if I have that sort of job I know what to do but this is just for my personal knowledge.
Register to Reply
PWSlack
Guru
United Kingdom - Member - Indeterminate Engineering Fields - Control Engineering - New Member

Join Date: Jan 2007
Location: In the bothy, 7 chains down the line from Dodman's Lane level crossing, in the nation formerly known as Great Britain. Kettle's on.
Posts: 32175
Good Answers: 839
#3
In reply to #2

Re: Protection and Control-Power Distribution

06/08/2009 6:35 AM

Open a dialogue with the person doing the job!

__________________
 "Did you get my e-mail?" - "The biggest problem in communication is the illusion that it has taken place" - George Bernard Shaw, 1856
Register to Reply
JOPENZ107
Active Contributor

Join Date: Jan 2008
Posts: 14
#4
In reply to #3

Re: Protection and Control-Power Distribution

06/08/2009 6:51 AM

I thought the explanation in my previous email was clear enough.This job doesnt exist,this question is just for my personal knowledge
Register to Reply
PWSlack
Guru
United Kingdom - Member - Indeterminate Engineering Fields - Control Engineering - New Member

Join Date: Jan 2007
Location: In the bothy, 7 chains down the line from Dodman's Lane level crossing, in the nation formerly known as Great Britain. Kettle's on.
Posts: 32175
Good Answers: 839
#5
In reply to #4

Re: Protection and Control-Power Distribution

06/08/2009 7:57 AM

Open a dialogue with someone who does similar jobs!

__________________
 "Did you get my e-mail?" - "The biggest problem in communication is the illusion that it has taken place" - George Bernard Shaw, 1856
Register to Reply
jack of all trades
Guru
New Zealand - Member - Kiwi Popular Science - Weaponology - New Member Engineering Fields - Power Engineering - New Member Engineering Fields - Electrical Engineering - New Member

Join Date: Sep 2006
Location: Auckland, New Zealand
Posts: 8777
Good Answers: 376
#8
In reply to #5

Re: Protection and Control-Power Distribution

06/08/2009 4:19 PM

I thought that was what he/she was trying to do.

__________________
 jack of all trades
Register to Reply Off Topic (Score 5)
elect-ok
Power-User

Join Date: Sep 2008
Location: Jakarta, Indonesia
Posts: 104
#6
In reply to #4

Re: Protection and Control-Power Distribution

06/08/2009 8:35 AM

so, what is your job honestly ?

teacher ? mathematician? mechanics ?
Register to Reply
jack of all trades
Guru
New Zealand - Member - Kiwi Popular Science - Weaponology - New Member Engineering Fields - Power Engineering - New Member Engineering Fields - Electrical Engineering - New Member

Join Date: Sep 2006
Location: Auckland, New Zealand
Posts: 8777
Good Answers: 376
#7

Re: Protection and Control-Power Distribution

06/08/2009 4:17 PM

Have a look at previous threads on CR4 (fault level calculation, current protection and CT's) for an answer.

To start you off, this guide is quite good (but you need to register on the site)

http://login.ecmweb.com/wall.aspx?ERIGHTS_TARGET=http%3A%2F%2Fecmweb.com%2Fmag%2Felectric_shortcircuit_calculation_methods%2F

Also try a google or Wikipedia search (there is heaps of information and guides there to satisfy your curiosity).

__________________
 jack of all trades
Register to Reply
Register to Reply
Have a Different Question?
8 comments
Copy to Clipboard

Users who posted comments:

elect-ok (1); jack of all trades (2); JOPENZ107 (2); PWSlack (3)

Previous in Forum: High Voltage Transmission Lines   Next in Forum: Fuses and Potential Transformers
You might be interested in: Stock and Strip Feeders, Solids Feeders, Parts Feeders

Advertisement

Got Something to Say?
Ask a Question
Start a Discussion

Search this Forum
Electrical Engineering:
Go

CR4 Sections
Aerospace
BioMech & BioMed
Chemical & Material Science
Civil Engineering
Communications & Electronics
Education and Engineering Careers
Electrical Engineering
General Discussion
Instrumentation
Manufacturing
Mechanical Engineering
New Technologies & Research
Software & Programming
Sustainable Engineering
Transportation

Site Directories
Forum Directory
Blog Directory
User Group Directory
RSS Feeds

CR4 Rules of Conduct
CR4 FAQ
Site Glossary

Who's Online (62 right now)
Show Members
Advertisement