Wiring 6 transformers 11v primarys to 220vac
#1
12-02-13, 02:57 PM
Join Date: Dec 2013
Location: usa
Posts: 5
Upvotes: 0
Received 0 Upvotes
on
0 Posts
#2
12-02-13, 04:12 PM
If the green wire is really a neutral not a ground and is gray or white, yes but you have 240v if this is U.S. and the result will be 120 on each primary. You must use either a 2-pole breaker or two handle tied single pole breaker if this is hard wired. If it is plug in you must run a 120/240 feed from a 2-pole breaker to an appropriate 4-wire receptacle.
#3
12-02-13, 05:26 PM
Join Date: Dec 2013
Location: usa
Posts: 5
Upvotes: 0
Received 0 Upvotes
on
0 Posts
Thanks for the reply. currently i have a 3 wire 12/2 cable. two 12awg hot wires with ground. i need to upgrade to a 12/3 with ground. I was hoping this would work. This is the only way i knew to do it....
#4
12-02-13, 05:32 PM
Group Moderator
No.... currently you have a two wire cable with ground. In that application you cannot use the bare ground wire as a neutral.
When you upgrade to a three wire cable. You'll have half the transformers on red and white and the other half of the transformers on black and white. The bare wire will be a true ground for them.
When you upgrade to a three wire cable. You'll have half the transformers on red and white and the other half of the transformers on black and white. The bare wire will be a true ground for them.
#5
12-02-13, 05:47 PM
Join Date: Dec 2013
Location: usa
Posts: 5
Upvotes: 0
Received 0 Upvotes
on
0 Posts
this isnt hard wired to the breaker box. its a 12/2 with ground SOOW cable into a 220v receptacle
#6
12-02-13, 05:58 PM
its a 12/2 with ground SOOW cable into a 220v receptacle
*Technically no ground, just conductors. one of which is green insulated in equipment cords such as SOOW. Feeder cable such as NM-b does have a ground but it is not counted.
#7
12-02-13, 06:04 PM
Join Date: Dec 2013
Location: usa
Posts: 5
Upvotes: 0
Received 0 Upvotes
on
0 Posts
#9
12-02-13, 06:34 PM
Join Date: Dec 2013
Location: usa
Posts: 5
Upvotes: 0
Received 0 Upvotes
on
0 Posts
this is going to be a 200 amp power supply for a solid state ampifier for ham radio. I am a ham operator.
