Transformer neutral

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James123

Member
Location
Austin Texas
Occupation
Electrician
This is for exam prep. I’m having trouble wrapping my head around sizing the neutral for a transformer. Do I use table table 250.102 (c) (1) and base it of size of the phase conductor. Or do I base it of maximum unbalanced load. Thanks in advance.
 

Dennis Alwon

Moderator
Staff member
Location
Chapel Hill, NC
Occupation
Retired Electrical Contractor
We like for you to try and answer first. Look at table 250.102(c) and what does it say it is used for.... go from there

Bad clue.. ignore it
 
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