Previous in Forum: Motor Over Load Issue   Next in Forum: Max Allowed ZS for Schneider mccbs
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
14 comments
Rate Comments: Nested
Kaylen
Member

Join Date: Aug 2011
Posts: 5

electricalexpert65

08/18/2011 10:58 AM

Please have a look at the attached single line diagram and give your comments.

The gensets and transformers are within 15m of the genbus panel.

All the earths will be bonded. Only one (Set at priority 1) genset will be earthed at the star point and the neutral & earth bars will be bonded at the genbus panel.

Myconcern is the prospective earth fault at the step up transformer, would it help if we installed a "Restrictive earth fault CT" on each transformer star point which will in turn shunt the transformer LV ACB's.

Any other protection options?....
Register to Reply
Interested in this topic? By joining CR4 you can "subscribe" to
this discussion and receive notification when new comments are added.
electricalexpert65
Guru

Join Date: Oct 2009
Posts: 2061
Good Answers: 169
#1

Re: electricalexpert65

08/18/2011 11:06 AM

First of all, thanks for choosing me to answer your query, though, I must admit that there are better experts available in this forum to clarify your doubt. But, the drawing is not very clear. Can you send me your mail ID thro this forum's mailbox so that I can sen you my mail ID; then you can send me a mail attaching a larger drawing.

The question is interesting. I would like to have a look at it.
Register to Reply
Kaylen
Member

Join Date: Aug 2011
Posts: 5
#6
In reply to #1

Re: electricalexpert65

08/19/2011 5:29 AM

CR4 Admin - email address removed

From the CR4 Rules: Do not post phone numbers or email addresses. The CR4 Admin will delete all phone numbers and email addresses posted in threads or comments. You can share this information via the CR4 private messaging system.
Register to Reply Off Topic (Score 5)
wareagle
Guru
United States - Member - New Member

Join Date: Jun 2008
Location: Alabama
Posts: 1604
Good Answers: 63
#2

Re: electricalexpert65

08/18/2011 6:24 PM

Kaylen

This is the first time we have had a question named after one of the daily posters.

I want you to know that I am very hurt that you did not ask me as well as

PW Slack, JR, Lyn, Tornado, TonyS, redfred, Del the cat and all the other posters

who contribute so much to this forum. We feel slighted and left out of an opportunity

to help you with this problem. So we are abstaining from answering this question.

Take that.
Register to Reply
V.I.Abraham
Guru
Safety - ESD - New Member India - Member - New Member Engineering Fields - Energy Engineering - New Member

Join Date: May 2007
Location: Pune , India
Posts: 875
Good Answers: 42
#3
In reply to #2

Re: electricalexpert65

08/19/2011 12:17 AM

Hi wareagle and our regular friends,

It appears that the PO is a newcomer to this site and this is his first posting . So he thought it worth asking his question to an expert thinking that his question probably will be considered as special one and get an expert reply. So do not get hurt and pardon him and consider as a usual one and reply. Regards
Register to Reply
Kaylen
Member

Join Date: Aug 2011
Posts: 5
#4
In reply to #2

Re: electricalexpert65

08/19/2011 1:38 AM

lol, my sincere apologies wareagle. as VI Abraham mentioned, i am new. reading the previous threads i saw responces from electricalexp. i didnt mean to offend anyone. so please answer :)
Register to Reply
TonyS
Guru
United Kingdom - Member - New Member

Join Date: Aug 2010
Location: Resting under the Major Oak
Posts: 4347
Good Answers: 181
#7
In reply to #2

Re: electricalexpert65

08/19/2011 5:38 AM

I'm going to sulk in the corner

__________________
 The reports of my death are greatly exaggerated.
Register to Reply
Codemaster
Guru

Join Date: Jul 2005
Location: Stoke-on-Trent, UK
Posts: 4496
Good Answers: 137
#9
In reply to #7

Re: electricalexpert65

08/19/2011 7:16 AM

So am I, I didn't even get a mention in wareagle's post!

Seriously, though, I assume he was having a bit of a laugh.

Codey

__________________
 Give masochists a fair crack of the whip
Register to Reply
Lspraba
Commentator

Join Date: Sep 2008
Location: India
Posts: 91
Good Answers: 6
#5

Re: electricalexpert65

08/19/2011 3:30 AM

Good strategy to attract people towards your question.

I feel there are about 50 experts in electrical field who can answer any question. You may get many useful opinions from different views if most of them answer the question.
Register to Reply Off Topic (Score 5)
Kaylen
Member

Join Date: Aug 2011
Posts: 5
#8

Re: electricalexpert65

08/19/2011 6:03 AM

no answers as yet guys? shall i repost to all?
Register to Reply
TonyS
Guru
United Kingdom - Member - New Member

Join Date: Aug 2010
Location: Resting under the Major Oak
Posts: 4347
Good Answers: 181
#10
In reply to #8

Re: electricalexpert65

08/19/2011 7:46 AM

Re-post and you'll get shot down for a duplicate post, a NoNo on CR4

__________________
 The reports of my death are greatly exaggerated.
Register to Reply
electricalexpert65
Guru

Join Date: Oct 2009
Posts: 2061
Good Answers: 169
#12
In reply to #8

Re: electricalexpert65

08/20/2011 8:24 PM

We would definitely lie to answer your query. But, for that the drawing has to be readable. Pl. do as I said in my previous post. I shall look into.
Register to Reply
wareagle
Guru
United States - Member - New Member

Join Date: Jun 2008
Location: Alabama
Posts: 1604
Good Answers: 63
#11

Re: electricalexpert65

08/20/2011 12:14 PM

Kaylen

I was just joking. We need to keep it on the lite side on occasion. EE65 is an excellent person to ask for a response to your question. Nothing serious was intended in my post. I think I saw that this was your first post. Welcome and keep coming back.
Register to Reply
V.I.Abraham
Guru
Safety - ESD - New Member India - Member - New Member Engineering Fields - Energy Engineering - New Member

Join Date: May 2007
Location: Pune , India
Posts: 875
Good Answers: 42
#13
In reply to #11

Re: electricalexpert65

08/22/2011 1:23 AM

Dear Wareagle ,

Thanks for your reaction . Knowing you for so many years I expected it. Now it is for the PO to put up a clear drawing and explain clearly the subject matter so that we can reply further on the subject.

Regards.
Register to Reply
Kaylen
Member

Join Date: Aug 2011
Posts: 5
#14
In reply to #11

Re: electricalexpert65

08/22/2011 2:10 AM

i did get that u where joking :) but i still wanted to apologize.

thanks wareagle!
Register to Reply
Register to Reply
Have a Different Question?
14 comments
Copy to Clipboard

Users who posted comments:

Codemaster (1); electricalexpert65 (2); Kaylen (4); Lspraba (1); TonyS (2); V.I.Abraham (2); wareagle (2)

Previous in Forum: Motor Over Load Issue   Next in Forum: Max Allowed ZS for Schneider mccbs

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 (74 right now)
Show Members
Advertisement