CT Earthing


What is the best location for Earthing CT neutral? Protection panel or close to the CT itself?

Reply: @davidbeach

Our standard is the first point where the CT circuit hits a set of terminal blocks in the control enclosure. Obviously a stand alone breaker is treated somewhat differently.

Snippet source: https://www.eng-tips.com/viewthread.cfm?qid=472285

We ground the CT at the protection panel.