ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
ShoutChat
Recent Posts
Increasing demand factors in residential
by tortuga - 03/28/24 05:57 PM
Portable generator question
by Steve Miller - 03/19/24 08:50 PM
Do we need grounding?
by NORCAL - 03/19/24 05:11 PM
240V only in a home and NEC?
by dsk - 03/19/24 06:33 AM
Cordless Tools: The Obvious Question
by renosteinke - 03/14/24 08:05 PM
New in the Gallery:
This is a new one
This is a new one
by timmp, September 24
Few pics I found
Few pics I found
by timmp, August 15
Who's Online Now
0 members (), 265 guests, and 15 robots.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate Thread
#90979 12/20/04 09:53 AM
Joined: Mar 2003
Posts: 849
Y
Member
4160 primary delta
480 volt secondary wye
Dual rated 1500/1935
Whats the best this transformor can be expected to put out .
I know 1935x1000=1935000 divided by 7196.8 (1.73x4160)=268.9 amps on pri.
1935000 divided by divided by 830.4 (1.73x480) = 2330
450.3a for fusing pri. and secondary
Supervised location
But what percentage of transformer full load current can one trully expect a transformer to perform at and be reliable???
reason I;m asking, its designed to feed a 5000 amp buss with a load I calulatate at min 3500 amps .Just interested in transformer info not a bunch of unrelated

DETAILS.

Stay up to Code with the Latest NEC:


>> 2023 NEC & Related Reference & Exam Prep
2023 NEC & Related Reference & Study Guides

Pass Your Exam the FIRST TIME with the Latest NEC & Exam Prep

>> 2020 NEC & Related Reference & Study Guides
 

#90980 12/20/04 04:20 PM
Joined: Mar 2003
Posts: 849
Y
Member
Found my own answer:
Transformers can preform at 100% no problem . Thats it, Talked to Sq.D. & several design eng.
1500 without fan kits
1935 with fan kits to disabate the heat


Link Copied to Clipboard
Powered by UBB.threads™ PHP Forum Software 7.7.5