Is there a better method to verify the leads before I begin wiring up?
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Bob Latino wrote:Hi Chuck,
Yes - You can do it that way as you suggest and it won't harm the transformer in any way .. Just be very careful that none of the leads are touching any other leads. Turn the transformer upside down on a table and apply your 117 - 120 VAC to the two BLACK leads.
Two GREEN wires - 6 to 6.8 VAC as measured across the two leads
Two BROWN wires - 6 to 6.8 VAC as measured across the two leads
Two WHITE wires - 4.8 to 5.5 VAC as measured across the two leads
Two RED wires - 700 to 750 VAC as measured across the two leads
GREEN/YELLOW to RED/YELLOW 3 to 4 VAC
BROWN/YELLOW to RED/YELLOW 3 to 4 VAC
RED/BLACK to RED/YELLOW 50 to 60 VAC
Depending on your incoming line voltage and the fact that there would be no load on the power transformer, some of the voltages could be slightly out of range. If one reading is WAY OFF then that could indicate a problem with the PT.