The Electrical Contractor Network

ECN Electrical Forum
Discussion Forums for Electricians, Inspectors and Related Professionals

Books, Tools and Test Equipment for Electrical and Construction Trades

Register Now!

Register Now!

We want your input!


2017 NEC and Related
2017 NEC
Now Available!

Recent Posts
Speaking of Plugmold ...
by gfretwell
10/17/16 02:37 PM
Broken battery charger? Check for cobwebs!
by gfretwell
10/17/16 02:30 PM
Son of Sparky
by gfretwell
10/16/16 07:53 PM
230 or 345 kV transmission lines?
by annemarie1
10/12/16 01:23 PM
Is this a fix or just a bandaid?
by gfretwell
10/10/16 06:49 PM
New in the Gallery:
12.5A through 0.75mm˛ flex (just out of curiosity)
Shout Box

Top Posters (30 Days)
gfretwell 11
renosteinke 6
ghost307 5
HotLine1 5
Potseal 4
Who's Online
0 registered (), 297 Guests and 4 Spiders online.
Key: Admin, Global Mod, Mod
Topic Options
Rate This Topic
#204912 - 01/21/12 07:12 AM sizing of Transformer
volt Offline
New Member

Registered: 09/23/09
Posts: 1
Loc: canada
hi , i have a generator that gives me 600v 3ph 120 amps and would like to have 120/208 3ph .
What size of Transformer should i use


Work Gear for Electricians and the Trades

Work Gear for Electricians and the Trades
Work Gear for Electricians and the Trades
Arc Flash Clothing, Gloves, KneePads, Tool Belts, Pouches, Tool Carriers, etc. etc....

#204917 - 01/21/12 09:34 AM Re: sizing of Transformer [Re: volt]
Tom Offline

Registered: 01/01/01
Posts: 1069
Loc: Shinnston, WV USA
600 volts x 120 amps x 1.73 = 124,560 volt amps

Standard transformer sizes are 112 1/2 kva (smaller) or 150 kva (larger)
Few things are harder to put up with than the annoyance of a good example.


ECN Electrical Forums - sponsored by Electrical Contractor Network - Electrical and Code Related Discussion for Electrical Contractors, Electricians, Inspectors, Instructors, Engineers and other related Professionals