PT / CT

[mike0w]

I am fairly new to this and I am trying to take in everything and learn as much as possible, but have become confused on a couple things I currently just started working with primary switchgear at medium to high voltages and am trying to understand this whole pt/ct thing does anyone have any good links to websites explaning these, and how they work with control circuits for the operation of breakers? Thanks for the help.

 

[Ed MacLaren]

Re: PT / CT

Here is a link to a fairly basic article on the subject.
Protective Relaying

If you want a more in-depth, quite technical, article, try this one.
Switchgear

Ed

 

[templdl]

Re: PT / CT

Thanks for the references Ed. It was a good review for me.
Dave

 

[mike0w]

Re: PT / CT

Thanks for the information it is exactly what I was looking for.

 

[mike0w]

Re: PT / CT

quick question I was reading from the pdf file linked in your post and wondered where is the rest of this book? The other chapters? Are they available for download or is there somewhere I can purchase this book? Thanks Again.

 

[mike0w]

Re: PT / CT

One more thing dose anyone know how to read the EC&M article with the illustrations shown??

 

[Ed MacLaren]

Re: PT / CT

Mike, I think a subscription is required to get the illustrations.

Ed

 

[steve66]

Re: PT / CT

delete the "chapter4" from the end of the URL and you will find more links to the switchgear book.

web page