Feb 12, 2009 #1 vreijb Electrical Nov 22, 2006 38 0 0 CA What would be the size of the ferro resonance resistor for PT 100VA, with 4200/69/69 V. The plant is 7.2KV with high resistance grounding any assisstance is aprrecviated
What would be the size of the ferro resonance resistor for PT 100VA, with 4200/69/69 V. The plant is 7.2KV with high resistance grounding any assisstance is aprrecviated
Feb 17, 2009 #21 waross Electrical Jan 7, 2006 26,725 2 38 CA Thank you David. Bill -------------------- "Why not the best?" Jimmy Carter Upvote 0 Downvote
Feb 18, 2009 Thread starter #22 vreijb Electrical Nov 22, 2006 38 0 0 CA what about overvoltage factors 1.5 for 8H, 1.9 for 30min, and 1.2 cont. doesn't mean anything knowing we will trip in case of earth fault. Upvote 0 Downvote
what about overvoltage factors 1.5 for 8H, 1.9 for 30min, and 1.2 cont. doesn't mean anything knowing we will trip in case of earth fault.