Neutral Currents and open lines
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Last updated 6:36 PM on 3/21/26
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5 Terms
1
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Open in a WYE, NO Neutral
IL = (86.6%) of previous current before the break
PT = (50%) of previous power before the break
2
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Open in Line WYE with NEUTRAL
IN = Same as any of the two lines
PT = (66.7%) of previous power before the break
3
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Delta Open Line ( Fuse )
IL = (86.6%) of previous
PT = (50%) of previous
4
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Delta open Load ( Resistors)
IL = (57.7%) of previous
PT = (66.7%) of previous
5
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Delta Connection
Before a Break IL = IP*root 3
After a Break IL Becomes IP for two of the phases because there is no other path for current or power in an open load.
