Previous in Forum: TPN or 4-Pole   Next in Forum: Voltage Drop Calculations for Three Phase 415V , 50 HZSystem
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
4 comments
Rate Comments: Nested
Mr. EHM
Participant

Join Date: Feb 2008
Location: El Paso, Texas, U.S.A.
Posts: 4

basic impulse level & ring wave test

02/25/2008 10:05 AM

I would like to know what kind of tester is needed to do these electrical test.

I will really appreciate your help.

We are looking for any information to be sure before buying a tester.

Thks
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".
Bluestone
Guru

Join Date: Nov 2006
Location: OH USA
Posts: 549
Good Answers: 27
#1

Re: basic impulse level & ring wave test

02/25/2008 10:51 AM

Basic Impulse Level (BIL) or more correctly, Basic Impulse Insulation Level requires an impulse generator; the size and characteristics of which depends upon the type of product you plan to test.

Impulse generators range from single stage to large multiple stage generators. Multiple stage generators include a number of capacitors that are charged in parallel through resistance and discharged in series through spark gaps (Marx generator). External resistance and reactance are used to obtain the desired waveshape. The standard impulse wave for BIL is defined as 1.2/50 (1.2 microseconds virtual front time to crest x 50 microseconds time to half-crest on the tail).
Register to Reply
Mr. EHM
Participant

Join Date: Feb 2008
Location: El Paso, Texas, U.S.A.
Posts: 4
#2
In reply to #1

Re: basic impulse level & ring wave test/10KV min. for autotransformer, ballast

02/25/2008 1:25 PM
Register to Reply
2
Bluestone
Guru

Join Date: Nov 2006
Location: OH USA
Posts: 549
Good Answers: 27
#3
In reply to #2

Re: basic impulse level & ring wave test/10KV min. for autotransformer, ballast

02/26/2008 9:45 AM

In that case you need only a small single stage impulse voltage generator.

There are several manufacturers of these kinds of generators. Megger offers several including a small 15 kV suitcase model. You might also look at HaefelyEMC and Hipotronics (both of which are part of Hubbell's Test Equipment Business.

It probably makes sense to use a self-contained model because it would include the output voltage measuring circuit.

Good luck.
Register to Reply Good Answer (Score 2)
No more Good Answers.
Anonymous Poster
#4

Re: basic impulse level & ring wave test

03/07/2008 3:10 PM

did you manage to find the correct tester for your issue? Hope you got the correct piece of equipment for the electrical testing
Register to Reply
Register to Reply
Have a Different Question?
4 comments

Good Answers:

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

Users who posted comments:

Anonymous Poster (1); Bluestone (2); Mr. EHM (1)

Previous in Forum: TPN or 4-Pole   Next in Forum: Voltage Drop Calculations for Three Phase 415V , 50 HZSystem
You might be interested in: Metal Ring Seals, V-ring Seals, Ring Gages

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 (76 right now)
Show Members
Advertisement