Posted 5/16/2008 23:30 (#379647 - in reply to #379644) Subject: RE: Electrical :Grounded 3 phase
Princeton,IN
In order not to confuse yourself, when measuring three phase voltage, always check first phase to phase.
This is going to read 480 three times.
The grounded leg , when checked to ground, will be Zero. It is grounded. There is no difference of potential. (It isn't dead, it is grounded).
Electrical :Grounded 3 phase
