Phase converter feeding the panel that feeds it

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jap

Senior Member
Occupation
Electrician
120/240 1ph feeds a 3 phase 200 amp main breaker panel with feed thru lugs.
A and b phase of the feed thru lugs feed the line side of a 1ph to 3ph phase converter.
The 3rd "Generated Phase" goes back up through the flex and is landed on the 3rd phase of the Main making it a 3ph panel with distribution.

All Loads out of the panel will be strictly 3 phase delta.

Something about this just doesn't seem right..... or is it?
 

ggunn

PE (Electrical), NABCEP certified
Location
Austin, TX, USA
Occupation
Electrical Engineer - Photovoltaic Systems
120/240 1ph feeds a 3 phase 200 amp main breaker panel with feed thru lugs.
A and b phase of the feed thru lugs feed the line side of a 1ph to 3ph phase converter.
The 3rd "Generated Phase" goes back up through the flex and is landed on the 3rd phase of the Main making it a 3ph panel with distribution.

All Loads out of the panel will be strictly 3 phase delta.

Something about this just doesn't seem right..... or is it?
How can the phase relationship between L1 and L2 of a 240/120V single phase service be correct for the A and B phases of a 240V three phase service? Educate me, please.
 

jap

Senior Member
Occupation
Electrician
I don't get relationally involved with phases, but that's the way roto phase converters work.......L1 and L2 to the A and B lugs on the disconnect or panel and also down to the phase converter, made leg comes back up and lands on C.

Wish I knew how to post a pic.

JAP>
 
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