Transformer wiring which is AC what is DC?

Question

I have a transformer the top of it has a red wire and brown wire and the bottom has a orange and a black wire. This converts 110 AC to 24 DC and there is no wiring instructions for it. Just wondering if any one knows

Answer 1

A transformer won't change a/c to d/c.
You must have a rectifier,a capacitor and voltage regulator.
Plug it in carefully and check the output with a meter.
You will see that the out put is 24vac.
Take care!

Answer 2

Okay...lets start with basics...

A transformer only works with AC, and changes some AC voltage to some other AC voltage.

Yours has a label which says it has DC output. So there must be a rectifier inside which takes the secondary voltage and rectifies it into DC voltage.

Spread out the transformer wires so that none touch each other during the following discussion.

To see what is what, take an Ohm Meter set to maybe the 1000 Ohms Scale, and measure between any two leads.
Make a table of the resistances you get as you move around checking the different leads. Remember to check the resistance of a pair of wires first one way, then the other (means switch the connection of the red and black ohm meter leads). When making these tests notice there is a big difference between Zero ohms and Nothing. Nothing means very high resistance. On zero (or very low ohms) the needle will swing way over to zero or close to it.

When you find the pair of leads that has a low resistance and the resistance is the same regardless of the connection of the ohm meter red and black leads, that pair of leads goes to your AC connection.

Another pair of leads will show high resistance in one direction and low resistance in the other direction (direction means the connection of your red and black ohm meter test leads). That pair of wires is the DC side of your transformer.

Change the Meter setting switch to read DC Volts and set it for a scale which is close to your DC Transformer Output. Check to make sure that the Red Meter Test Lead is in the Positive Meter Jack, and that the Black Meter Test Lead is in the "Common" or "Negative" Meter Jack. Now carefully probe the output wires of the transformer with your Volt meter. When the needle on the meter swings Up Scale, the transformer wire you are touching with the Red Meter Test Probe is "Positive", and the transformer wire you are touching with the black meter probe lead is "Negative."

Write that down and even make some labels to go onto the wires.

Un-plug everything.

Answer 3

smart dud is mostly right. It's a converter not a transformer IF it has a positive and negative output. If it is labeled ac to ac, neither wire is positive. In my experience the white wire could be either. Check it with a voltmeter.

Answer 4

Are you aware how dangerous it can be to screw around with that stuff at your level of knowledge? I don't want to be insulting here but there have been many cases of electrocution because someone thought they knew what they were doing. If you can't even figure out which wire is which just leave your fingers off of it.

Answer 5

Transforrmers do not covert AC into DC