Love it, thank you piterpol.
I actually remember reading one similar to this a few years back but it is always good to brush up these skills.
UPDATE: I just had a meeting with the client's P&C engineer, who no doubt had a conversation with the settings engineer. This is what was...
I see, i did not know you could have use a CT where the grounding was away from the bus. You guys have given me lots to think about and a few possible solutions. I thank you for your time and knowledge. I shall update you on the final decision.
Again, thank you so much!
@davidbeach,
oh i misunderstood what you asked. this one is expanded.
http://files.engineering.com/getfile.aspx?folder=38d05404-0b83-40a8-a17b-5387ca216fb4&file=txct.pdf
@Scottf I think since we are not digging up the trench for the TX (originally) the client may not want to go for the...
Hi Scottf,
Yes I have. I was told this has been an option used in the past. I haven't pitched it to the client yet. First I wanted to see if there were any other options as this is a fixed priced project and cost is certainly a constrain.
Do you have any experience with them? Good results?
Hi Davidbeach, thanks for your response.
I've attached a small sketch of the TX in question. The revision clouds are my design. the one coming from the B87/T2 prot would be going to my A87/138B. Maybe i didnt want to completely extend the zone to cover all fo the TX but now that i think about...
Hello all,
new member here. My senior engineer seems unsure as to the answer to my question so i figured i'd try it here.
I have a client that wants to add a low impedance Bus differential relay for an expansion project adding a bus with a 138kV breaker.
The problem comes when trying to...
