[John_in_SF]

I'm trying to set up 3 electric heaters in a system plugged into 240V/3phase arranged in a delta. Each heater draws 30A. A diagram of what I want to build can be seen at:

https://drive.google.com/file/d/0B1ph7lVxtvhaTV93NXhiRldINlk/view?usp=sharing

Will the amp draw on each leg be 60A? I think it will be but want to check. Thanks!

 

[Meadow]

Ibtl

 

[hardworkingstiff]

No, it won't be 60 amps, I believe it will be more like 52 amps (but I could easily be wrong about the 52 amps).

 

[MTW]

Ibtl

 

[Meadow]

multiply by the square root of 3 if all heaters are even.

 

[John_in_SF]

Many thanks!

And apologies if I've broken a forum rule.

 

[Meadow]

Many thanks!

And apologies if I've broken a forum rule.

Its ok, this is the place for DIY questions. I can help you over there if need be:

http://www.diychatroom.com/

 

[hardworkingstiff]

For some reading up, http://solarprofessional.com/articl...ng-3-phase-line-currents?v=disable_pagination

It gives the formulas on how to do the calculations.

 

[Meadow]

Ok Ill add the spread sheet:

http://forums.mikeholt.com/showthread.php?t=167171&page=4&p=1624520#post1624520


http://forums.mikeholt.com/showthread.php?t=133354&p=1278936#post1278936

 

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