2204 using Hammond 290GX PT

[Mehfuzhoss]

Hello El34world,

On the secondary side of the PT there are two black wire (well one is glossy black, one is matt black). my question is, how can i figure out the black wire that has 3.15v? the other black wire will connect to ground. please help. spec sheet is attached.

[SnickSound]

I believe the 3.15V one will be a thicker gauge. Are there differences in wire thickness?

Been a while since I built mine, I'd have to open it up to see

[sluckey]

Hello El34world,

On the secondary side of the PT there are two black wire (well one is glossy black, one is matt black). my question is, how can i figure out the black wire that has 3.15v? the other black wire will connect to ground. please help. spec sheet is attached.

Connect one probe of your ohmmeter to the orange wire. Now touch the other meter probe to a black wire. If you have a very low resistance (close to zero ohms) then you got the right wire. Twist it together with the orange. If no, grab another black wire.

[Mehfuzhoss]

yes different gauges. the shiny black is thicker, must be this one the 3.5v

[sluckey]

Do what I suggested and be sure.

[Mehfuzhoss]

the thicker black wire shows lower resistance. i used that one with orange for heater wire.