Connecting 115V primary on a Toroidal power transformer

Kermit2

Joined Feb 5, 2010
4,159
The in line thermal fuse is IN the winding. If the wires overheat it opens. Bypass it and there is NO thermal protection for the transformer windings.

It is different from a normal fusible link type in line fuse which opens at a specific current level.
 

Kermit2

Joined Feb 5, 2010
4,159
You have been warned by other VERY experienced technical experts that the red orange pair may be a secondary winding.
I will now add my "voice" to that chorus.
I recommend and strongly urge you to follow R!f@@ suggestions and power just the one winding with the black/white pair and check the voltage output on the red/orange pair.
 

Thread Starter

ProWannaBe

Joined Feb 13, 2017
21
The in line thermal fuse is IN the winding. If the wires overheat it opens. Bypass it and there is NO thermal protection for the transformer windings.

It is different from a normal fusible link type in line fuse which opens at a specific current level.
Yes i caught that later on today as i thought about it! And I appreciate all of the information from everyone! I cannot understand why the thermal overload would be in the neutral wire though if the white is a neutral wire? I guess i will have to wait until i get the coil and do some resistance testing because i do know one way or the other it is intended to work either with a 115v primary or a 230v primary depending on how the user wires the primary windings! I have been up all night with a bad back and headache, and my mind was and is still foggy right now and i sincerely apologize as i know you all are trying to help!!!

Still cannot sleep and it is 2:10est. I guess when i get so exhausted my body cannot stand it anymore, i will get some much needed sleep!!!

As said i realized what you all were trying to tell me after i was out on the rd getting my taxes done today and thinking about that coil! And i will listen to your advice as i know you all are right and trying to help!!! Thank you!!!
 

Thread Starter

ProWannaBe

Joined Feb 13, 2017
21
@Kermit2 I do not think OP wants to listen to advice.
That's why I said "OK..if you say so."
Same as i just said to Kermit2!
In fact here it is:
Yes i caught that later on today as i thought about it! And I appreciate all of the information from everyone! I cannot understand why the thermal overload would be in the neutral wire though if the white is a neutral wire? I guess i will have to wait until i get the coil and do some resistance testing because i do know one way or the other it is intended to work either with a 115v primary or a 230v primary depending on how the user wires the primary windings! I have been up all night with a bad back and headache, and my mind was and is still foggy right now and i sincerely apologize as i know you all are trying to help!!!

Still cannot sleep and it is 2:10est. I guess when i get so exhausted my body cannot stand it anymore, i will get some much needed sleep!!!

As said i realized what you all were trying to tell me after i was out on the rd getting my taxes done today and thinking about that coil! And i will listen to your advice as i know you all are right and trying to help!!! Thank you!!!
 

R!f@@

Joined Apr 2, 2009
10,004
I am telling you all this bacause I kinda do this for living.
I collect powerful Tx from every where.
Then I figure out the primary winding by DMM and auto transformer.

Sometimes I scare the guy next to me out of his pants trying to power huge Tx. If the resistance is too low it is hard to figure out the windings of an unknown Tx.
In your case it is pretty straight forward.
 
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