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feroresonance resistor

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vreijb

vreijb

Electrical
Joined
Nov 22, 2006
Messages
38
Location
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
 
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Thank you David.

Bill
--------------------
"Why not the best?"
Jimmy Carter
 
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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.
 
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