Transformer schematic

electrofelon

electrofelon

Senior Member
Location
Cherry Valley NY, Seattle, WA
Occupation
Electrician
Hey guys, this is for an "industrial control transformer". What are terminals 7 and 8? When I energized the windings, I get about 15 volts between 2 and 7. Is there another small winding in there to give you 12ish volts in case you need it? Is that "a thing" on some control transformers? I don't do much control work, but I don't recall seeing such a thing before and I can't find any mention of it in the instructions or schematics, just the picture in the attached diagram.
 

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1 & 7, and 6 & 8, (and 1 & 7 sec) are for if there are internal fuses; otherwise, they're dummies.
 
Last edited:
LarryFine said:
1 & 7, and 6 & 8, (and 1 & 7 sec) are for if there are internal fuses; otherwise, they're dummies.
Click to expand...
Oh for fuse clips, ok it's suddenly making a lot more sense 😂. The voltage I was reading was just phantom voltage. Took me a little while to figure out it didn't have taps also. At first it looks like it with those different voltages and the "extra" terminals.
 
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