Another high-leg delta problem

G

ggunn

PE (Electrical), NABCEP certified
Location
Austin, TX, USA
Occupation
Consulting Electrical Engineer - Photovoltaic Systems
Birken Vogt said:
My shop is fed by open delta and I have large load banks in said shop. 25+50 KVA transformers. Only problem is the main panel is Zinsco braided bus and I don't want to mess with it. But it already has a 70 amp 3 phase circuit that I could connect a load bank to.

Wayne, if you want to explain in very small words how I would go about finding the phantom pot, I would love to do this test. If I can find the time.
Click to expand...
Could you maybe find it by putting a large three phase load on the service, turning everything else off, and measuring the voltage drop?
 
W

wwhitney

Senior Member
Location
Berkeley, CA
Occupation
Retired
ggunn said:
Could you maybe find it by putting a large three phase load on the service, turning everything else off, and measuring the voltage drop?
Click to expand...
Per the middle case in posts 45 and 49, if I did my math right, that wouldn't work very well.

Cheers, Wayne
 
kwired

kwired

Electron manager
Location
NE Nebraska
synchro said:
There's not a key on a standard keyboard character for it, but I'm sure Wayne meant that < would represent the angle, ( ∠ using the 2220 Unicode symbol) and the number following it would be in degrees.
Click to expand...
Just teasing, but he's smart enough to understand what is up in that calculation but can't figure out how to use the character map on his computer? :)
 
You must log in or register to reply here.
Top