Rules and Guidelines
Want to participate in the discussions? Please read our Community Rules and Guidelines. Need some help? Visit Support and Answers.

  • State Not Answered
  • Locked Locked
  • Replies 11 replies
  • Subscribers 40 subscribers
  • Views 3229 views
  • Users 0 members are here
Options
You may also be interested in
This discussion is locked.
You cannot post a reply to this discussion. If you have a question start a new discussion

High earth loop impeance at Transformer

MS01

Hi There, 

We have just installed a new 800kVA transformer on site with a impedance of 4.75%. However when it comes to taking the EL reading at source we are getting 0.12-0.14ohms compared to what we expect of 0.01-0.02 ohms. 

Other than checking the cable connections, changing the meter or having faulting TX can anyone give me some ideas why this may be. Has anyone come across this before?

Parents
  • 0

    This is a private Transformer which sits on a PWN. As part of the commissioning process as the TX has just been installed they have tested it and the results are high. But i agree i believe this to be a meter issue. 

Reply
  • 0

    This is a private Transformer which sits on a PWN. As part of the commissioning process as the TX has just been installed they have tested it and the results are high. But i agree i believe this to be a meter issue. 

Children
No Data

Join us to get the best from IET EngX.

Joining EngX lets you personalise your experience so you stay up to date on the topics that interest you, plus you’ll be able to make connections who are looking to collaborate, exchange ideas and more.

Join us Not now

Community Rules & Guidelines