INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Jobs

Isolation transformer

Isolation transformer

(OP)
Hello Group,

We have isolation transformers installed in our OR, ICU, and recovery area. Lately, we started facing problems like flickering in our equipment, power tripping of the eqiupment, or equipment hanging. The most affected equipment are patient monitors( we have all GE maequette monitors). We checked main power supply and almost all individual equipment. The failure happens very seldom, so we cannot simulate or expect at any particular moment.

We checked main power supply, grounding, and even performed a load test in our generator(the emergency supply) power. When I checked the supply output from isolation transformer, the voltage between L1-L2: approximatly 115V, L1-Ground: 62V, and L2-Ground: 60V. Almost, all the isolation transformer are giving the same measurements. I would like to know if these readings are normal with isolation transformer. Is it differ from normal power outlet which provides Hot(live) to Gnd 120 and Nutral-GND 0V.

I seek all your views, helps, and suggestions.  Thank you all

Muthu

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources


Close Box

Join Eng-Tips® Today!

Join your peers on the Internet's largest technical engineering professional community.
It's easy to join and it's free.

Here's Why Members Love Eng-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close