As above.
This is my guess but need some expert input.
Violet+grey on the primary. Black+yellow the secondary.
Thanks
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1\$\begingroup\$ Violet to grey makes the primary (brown/blue), black to yellow makes the secondary (red/orange). However winding both in series makes little sense. You'd get the same output voltage ratio with lower copper resistance loses by connecting both sides parallel. \$\endgroup\$– Kyle BCommented Nov 2, 2022 at 4:43
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\$\begingroup\$ @KyleB my V+/V- supply uses center-tap for ground. \$\endgroup\$– mrjayviperCommented Nov 2, 2022 at 4:45
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\$\begingroup\$ @KyleB But how does that affect VA? \$\endgroup\$– Harper - Reinstate MonicaCommented Nov 2, 2022 at 6:20
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1 Answer
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The primary
If you have a 120V supply, then it is Hot to brown/gray. Neutral to violet/blue.
If you have a 220-240V supply, then you splice violet and gray only to each other. And then, hot to brown and neutral to blue, as usual.
The secondary
You haven't said anything about what you want. I'm going to give you North American style "twice the secondary voltage with a center-tap", as might be used with a half-wave rectifier. So in that case you tie together black & yellow to be your center point. Red is now your pole L1, and orange is your pole L2. It's AC so it is not the case that red is + and orange is -. It is half the time.
answered Nov 2, 2022 at 6:21