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What? How come?

Techman
Member Posts: 2,144
Working on a regular AC system (RTU , new to me) my cohort said "we have 216v ,L1 to L2 .BUT, BUT we have 123v to ground L 1 & 123 V to ground L2! What What? How How come???
0
Comments
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3ø Wye System
With a tad of imbalance (should be 213V L-L if all is well.)0 -
electrician time
How is it wired in breaker box? Do you have 220 there?0 -
What?
Our measurements were at the AC unit disconnect. Do not know what is at the CB panel.0 -
I thought you were posting another quiz
In a three phase wye system, line to line voltage is equal to the √3 times the line to neutral voltage.
123V line to neutral times 1.732 = 213 V line to line.
Slight variations can be caused by nonlinear loading or the use of a DVM which does not measure true RMS AC.0 -
Voltages.
Truth be told , I'm asking for a fellow wallie ! He didn't want to ask! Shame on him!!!!Your welome!
SWEI- Thanks! I know about that stuff ,but I don't know about that stuff . Know what I mean?0
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