×
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!
  • Students Click Here

*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.

Students Click Here

Jobs

GE IAC relays.

GE IAC relays.

GE IAC relays.

(OP)
I'm having a hard time grasping the tap settings on these relays. Is there a simple explanation for setting them up properly. I'm not looking at making any changes, just wanting to understand how to select the proper taps.

RE: GE IAC relays.


If you define your question better or post an example of what you do not understand, someone will be glad to assit. Post the relay model, and tap values and relay spec/data.

Also search GE website and find its manual and post a link here too for discussion. Manual would have the explanation of what the tap designations means.

Rafiq Bulsara
http://www.srengineersct.com

RE: GE IAC relays.

Quote:

Is there a simple explanation for setting them up properly?

No, not really.  The tap setting is setting based on the mutually conflicting goals of protection and coordination, taking into account applicable codes, standards, nature of load supplied, and impact of loss of power.  

 

David Castor
www.cvoes.com

RE: GE IAC relays.

(OP)
I have the manual, but the section on burdens for the tripping coil really threw me off. After looking more closely at the manual, I came across the details for calculating the tap setting using the ratio of the ct. That was what I was looking for, I just looked a little too hard. I should have studied a little more before posting such a broad question. I have a copy of the art and science of protective relaying I will read.

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