Previous in Forum: need a help   Next in Forum: Create a Hydro generator
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
3 comments
Rate Comments: Nested
spk4u
Participant

Join Date: Feb 2009
Posts: 3

AC 230 volt and 440v Capacitors - Testing .

02/28/2009 11:47 PM

How can we test if capacitor is working or faulty for single phase 230 volts and three phase 440 volts . ?
Register to Reply
Interested in this topic? By joining CR4 you can "subscribe" to
this discussion and receive notification when new comments are added.

Good Answers:

These comments received enough positive votes to make them "good answers".
2
rakesh_semwal
Guru
India - Member - New Member Engineering Fields - Electromechanical Engineering - New Member

Join Date: Oct 2006
Location: India, 200 Km. North of Delhi.
Posts: 1393
Good Answers: 53
#1

Re: AC 230 volt and 440v Capacitors - Testing .

03/01/2009 12:03 AM

Few basic tests

Check capacitance with farad meter.

Charge capacitor to equivalent rated DC voltage and check how much current its drawing after full charge, It should be near to zero. ask supplier for specs. and compare.

Put capacitor on rated AC volts & frequency and check AC current with current meter it should match to -------Voltage/(2*pie*frequency*Capacitance)

You can also check breakdown voltage with a HVAC tester.

But before doing anything you should gather all the specifications.
Register to Reply Good Answer (Score 2)
No more Good Answers.
Aharon
Active Contributor

Join Date: Jan 2009
Posts: 20
#2

Re: AC 230 volt and 440v Capacitors - Testing .

03/02/2009 9:03 AM

Hi

Here you have 2 links for good information.

http://www.repairfaq.org/sam/captest.htm#ctbcs

http://www.angelfire.com/electronic/funwithtubes/Testing_caps.html

Aharon
Register to Reply
Anonymous Poster
#3

Re: AC 230 volt and 440v Capacitors - Testing .

03/02/2009 4:39 PM

Capacitors are measured in Micro farads. You can use some volt meters that have the capabilities. Fluc and radio-shack both sell meters with the capabilities. The fluc is expensive, the radio shack meter will cost less than $90.00 US
Register to Reply
Register to Reply
Have a Different Question?
3 comments

Good Answers:

These comments received enough positive votes to make them "good answers".
Copy to Clipboard

Users who posted comments:

Aharon (1); Anonymous Poster (1); rakesh_semwal (1)

Previous in Forum: need a help   Next in Forum: Create a Hydro generator

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 (77 right now)
Show Members
Advertisement