How do i find the short circuit current of a single phase transformer?

Answer 1

ohm between the primary and then the secondary. you should read more and 0 ohms. then measure primary to secondary. you should have very high resistance. safety first ! turn all power off and lock out tag out.

Answer 2

'Short-circuit current'?? There is no such specification for a transformer. The maximum secondary current is determined by the quantity of iron in the core, the wire size, insulation used , temperature rise, etc.

Your best bet is to go to the manufacturers website, or call one of their technical support people, and find out what the ratings are.

HTH ☺

Doug

Answer 3

The tranformer equations work like this...

V1 = Primary voltage
I1 = Primary current
N1 = number of turns of wire on the primary coil
V2 = Secondary voltage
I2 = Secondary current
N2 = number of turns of wire on the secondary coil

(V2/V1) = (I1/I2) = (N2/N1)

So the secondary current(I2) is going to be equal to
(N1/N2) * I1, or...
(V1/V2) * I1

This would be the theoretical, but you'd have to take losses into consideration, which can be found on the data sheet of the transformer.