Forums
New posts
Search forums
What's new
New posts
New media
New media comments
Latest activity
Media
New media
New comments
Search media
Members
Current visitors
Log in
Register
What's new
Search
Search
Search titles only
By:
New posts
Search forums
Menu
Log in
Register
Install the app
Install
Main Forums
Electrician Talk Forum
testing motors help
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Reply to thread
Help Support Talk Electrician Forum:
This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.
Message
<blockquote data-quote="Mr Sworld" data-source="post: 39820" data-attributes="member: 184"><p>Yes. Just test between the combinations of U1, V1 and W1 to make sure there isn't a open circuit.</p><p></p><p>As most three phase motors are squirrel cage types the biggest fault is 'single phasing' (you've lost one phase somewhere).</p><p></p><p>If you megger it don't expect huge readings! If you get below 2 M ohms then it probably needs checking by a specialist firm as the lacquer on the windings will of started to crack and flake.</p></blockquote><p></p>
[QUOTE="Mr Sworld, post: 39820, member: 184"] Yes. Just test between the combinations of U1, V1 and W1 to make sure there isn't a open circuit. As most three phase motors are squirrel cage types the biggest fault is 'single phasing' (you've lost one phase somewhere). If you megger it don't expect huge readings! If you get below 2 M ohms then it probably needs checking by a specialist firm as the lacquer on the windings will of started to crack and flake. [/QUOTE]
Insert quotes…
Verification
Post reply
Main Forums
Electrician Talk Forum
testing motors help
Top