Hi,
I got a call for a Company , who is in mining work and needs a jr. electrical engineer. Could you please advise me, what is special about mining as compared to Normal commerical power distribution.
Thanks
Hi
I asked this question earlier but in others thread.
I recently got a demo CD from ETAP and there was this three winding transformer in which both secondary and tertiary had flows in opposite directions. and In primary ths power was being fed back to utility. May be I cannot perceieve but...
Hi Everybody,
I was working on pulling 600 MCM teck90 armoured cable from basement of a building to 10 th floor through electrical rooms on each floor. The current is 2000 Amp, that means 3 cables/ phase. As I wantd some specs, I spoke to NEXANS and ALCAN.
The ALCAN gus told me that you...
Could any body plz advise protection approach for dealing with utility,
some literature available on web in regard to co-gen applications.
I beleive there are some experts here on this. Any piece of word would be appreciated.
Thanks
Hi
I am doing a load survey for an office building for emergnency generator. The building is stuffed with computers and lot of unbalance as I can see when we measure current, here is an example:
Ia- 27.7 AMP
Ib- 9.25Amp
Ic- 15.25 Amp
120/208 V
I should go for load =Sqrt(3)* 208*27.7 cos(phi)...
Hi Everybody,
Today I happened to have a word with a utility director and he gave me the value of 3 phase fault of 1000 A on 8.3 Kv line and 700 A ground fault. It surprised me, after finishing my engineering degree and since I have stepped in this engineering field( 1 yr exp.) and from what I...
Hi Everybody,
You guys have answered my erlier question in a generator thread. Actually I work in a consulting engg. firm. My perception of working in a consulting firm was an illusion I think now a most of the work is done by the manufacturer. The engineer's work is to connect the strings only...
Hi Everybody,
I was wondering, if you could comment on a suggestion made by my senior engineer. If we have an emergency diesel generator, and it is star connected but not sure if it is 3 oh 4 wire or only 3ph 3 wire, and it is connected to an ASCO power transfer switch. Now, through this switch...
Hi Everybody,
I would appreciate, if you could help getting the concept of lighting control using "Building Automation System". I just need a brief idea, I beleive than I will be able to understand.
I am an engineering in training and have been asked to suggest a retrofit for an existing...
Hi
we have an old UPS system which is being upgraded andis being supplied from APC. Plz advise, if new UPS unit should be grounded and if yes is it fine to connect it to any nearest ground wire which may be even connected to any panel.
Thanks
Hi,
Plz advise a rough guess, any possible number which could probably match the exact figure. What will be the value of ground fault current on a 44 KV line where the substation transformer is star grounded. I know this might be a stupid question but I need a rough idea.
Thanks
Hi Everybody,
Could anybody advise me any practical article or source of information available on web which contains some pictures or any one of you drop few words about grounding of a 167 KAV pad mounted distribution transformer. I am not sure how to start. It is an instruction to contractor. I...
Hi
I am an engg. trainee trying to write a protection philosophy for a distributed generation projetc and came across an article by beckwith electric
on "Use of Import Underpower as a means of protecting Against parallel operation in DG Interconnection Applications ". The article talks about...
Hi Everybody,
Most of you people here are either senior electrical consultants and electrical engineers and are involved in hiring new graduates. I just need a word of advise from you as this thing is very crucial for my future. I did my masters from a canadian university in power and just got...
