Previous in Forum: electricity   Next in Forum: Derating Current
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
2 comments
Rate Comments: Nested
ganeshakce-electrical
Commentator
India - Member - New Member

Join Date: Jun 2008
Location: Tamilnadu,india
Posts: 64

HT voltage

06/11/2008 10:59 PM

we are doing project on "cost analysis between 11KV and 6.6KV for a same capacity cement plant".obiviously 11KV cement plant getting more money.but we can recover that by means of reducing the loss(i^2*R) when compared to 6.6KV.

my doubt is the design people have designed both the 11kv and 6.6kv plant.they have known which is convenient.why they will be seleted 6.6kv once again.is there any specific technical reason .please guide me.

__________________
 Knowledge Sharing
Register to Reply
Interested in this topic? By joining CR4 you can "subscribe" to
this discussion and receive notification when new comments are added.
JRaef
Guru
United States - Member - New Member Engineering Fields - Power Engineering - New Member

Join Date: Sep 2006
Location: California, USA, where the Godless live next door to God.
Posts: 4665
Good Answers: 804
#1

Re: HT voltage

06/12/2008 2:08 AM

Typically, the higher the voltage, the more expensive the equipment investment is. So in the past, even though the 6.6kV meant higher current and more copper than 11kV, the switchgear, circuit breakers, motor winding insulation etc. would be more expensive because of the higher insulation and impulse levels.

But in the current climate of extremely high copper prices, I would venture to guess that the higher voltage may now result in lower capital equipment costs.

__________________
 ** All I every really wanted to be, was... A LUMBERJACK!.**
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
#2

Re: HT voltage

06/12/2008 3:37 AM

What about asking the 'design people'?

__________________
 "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
Register to Reply
Have a Different Question?
2 comments

Previous in Forum: electricity   Next in Forum: Derating Current
You might be interested in: Cement Boards, Plant Growth Chambers, Cement Tiles

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