Previous in Forum: 3 Output Battery Based Power Supply   Next in Forum: Functioning of TV Yoke
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
6 comments
Rate Comments: Nested
Anonymous Poster

CT Ratio

02/04/2011 2:39 AM

I have a ct coil. its ratio 300/5. when this ct coil connected to three face energy meter, what is the original reading in meter? pls
Reply
Interested in this topic? By joining CR4 you can "subscribe" to
this discussion and receive notification when new comments are added.
rsreedhar1987
Active Contributor
India - Member - New Member

Join Date: Aug 2010
Location: new delhi India
Posts: 19
#1

Re: CT ratio

02/04/2011 5:14 AM

Ask questions with adquate details

The CT ratio is = 300:5

=60:1

so multiply the reading with 60 times thats all

__________________
 sreedhar.r
Reply
Tornado
Guru
Technical Fields - Technical Writing - New Member Engineering Fields - Piping Design Engineering - New Member

Join Date: May 2009
Location: Richland, WA, USA
Posts: 21017
Good Answers: 795
#2
In reply to #1

Re: CT ratio

02/04/2011 12:09 PM

The typical meter actually "sees" 0-5 amps; what you read depends on whether the scale ratio has been matched to the CT ratio.

__________________
 In vino veritas; in cervisia carmen; in aqua E. coli.
Reply
msamad
Guru

Join Date: Feb 2009
Location: Houston, USA
Posts: 946
Good Answers: 244
#3

Re: CT Ratio

02/04/2011 1:24 PM

This type of question has been discussed many times in this forum. This is one of them:

http://cr4.globalspec.com/thread/36700/M-F-in-Electricity-bill

- MS

__________________
 "All my technical advices in this forum must be consulted with and approved by a local registered professional engineer before implementation" - Mohammed Samad (Linkedin Profile: http://www.linkedin.com/in/msamad)
Reply
Anonymous Poster
#4

Re: CT Ratio

02/04/2011 9:26 PM

Face off
Reply
arvindkumawat
Participant

Join Date: Feb 2011
Location: Nashik, Pune, Mumbai
Posts: 2
#5

Re: CT Ratio

02/05/2011 4:54 AM

CT ration is 300/5A. when u r connecting this CT to Energy meter for measurement purpose, u wil need to calibrate the CT ratio in meter, then only it can show u right readings. in meter, set the CT ratio, it wil auto-calibrate with current from CT
Reply
vijaymail_electrical
Commentator

Join Date: Jan 2011
Location: India
Posts: 98
Good Answers: 2
#6

Re: CT Ratio

02/14/2011 6:00 AM

the way ur question posted "three face energy meter" shows that ur not an electrical engineer to work with energy meter. so stay off from electrical systems bcoz it s very danger to equipments as well as you. sorry if am rude..

__________________
 You don't understand anything until you learn it more than one way.
Reply
Reply to Forum Thread
Have a Different Question?
6 comments
Copy to Clipboard

Users who posted comments:

Anonymous Poster (1); arvindkumawat (1); msamad (1); rsreedhar1987 (1); Tornado (1); vijaymail_electrical (1)

Previous in Forum: 3 Output Battery Based Power Supply   Next in Forum: Functioning of TV Yoke

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 (55 right now)
Show Members
Advertisement