Jul 31, 2016 #1 charz Electrical Jan 11, 2011 95 Would the residually connected CT's work for ground faults if the neutral is ungrounded for Yd11 transformer?
Would the residually connected CT's work for ground faults if the neutral is ungrounded for Yd11 transformer?
Jul 31, 2016 #3 davidbeach Electrical Mar 13, 2003 9,493 Slightly longer answer - the only means of detecting a ground fault on that system will be using voltage. Upvote 0 Downvote
Slightly longer answer - the only means of detecting a ground fault on that system will be using voltage.
Aug 1, 2016 #4 Marmite Electrical Jan 4, 2007 736 Ground faults where? If the source is grounded and it is feeding the Y winding then you could detect a fault on the Y winding with 3 CT's. That would be known as balanced earth fault protection where I am from. More details required. Regards Marmite Upvote 0 Downvote
Ground faults where? If the source is grounded and it is feeding the Y winding then you could detect a fault on the Y winding with 3 CT's. That would be known as balanced earth fault protection where I am from. More details required. Regards Marmite
