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glen.engineering
Participant

Join Date: Aug 2010
Posts: 3

480V to 415V

08/15/2010 7:31 PM

480v to 415 volts

i have a problem incoming supply 480/277v

from 800Amp breaker

i have a three bank transformer to connect 167KVA single phase each

how to connect to get 415 to splitter panel 600 Amps

what cable to use how to connect
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rasam.syamsudin
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Join Date: Dec 2009
Location: Jakarta 12130 Indonesia
Posts: 76
Good Answers: 1
#1

Re: 480V to 415V

08/15/2010 8:44 PM

It is difficult to response your posting due to unclear information that we have.

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glen.engineering
Participant

Join Date: Aug 2010
Posts: 3
#3
In reply to #1

Re: 480V to 415V

08/17/2010 10:14 PM

i have 277 volts per phase from a 480v / 277 v panel

i have to pass it through 167kva single phase i have 3 transformer for 208v so that two phase will be 415v
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Anonymous Poster
#2

Re: 480V to 415V

08/16/2010 2:56 AM

Consult an appropriately-qualified and experienced Electrical Engineer locally.
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glen.engineering
Participant

Join Date: Aug 2010
Posts: 3
#4

Re: 480V to 415V

08/29/2010 11:11 PM

GOT TRUE IT WAS A DELTA STAR CONNECTION
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TonyS
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United Kingdom - Member - New Member

Join Date: Aug 2010
Location: Resting under the Major Oak
Posts: 4347
Good Answers: 181
#5
In reply to #4

Re: 480V to 415V

08/30/2010 2:57 AM

Primary

Transformer 1 L1 red L2 yellow

Transformer 2 L1 yellow L2 blue

Transformer 3 L1 blue L2 red

Secondary

Transformer 1 L1 red L2 neutral

Transformer 2 L1 yellow L2 neutral

Transformer 3 L1 blue L2 neutral

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Users who posted comments:

Anonymous Poster (1); glen.engineering (2); rasam.syamsudin (1); TonyS (1)

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