CT Polarity Test

Polarity can be tested using the flick test. Connect an analog ammeter (hand‐held

multi‐meter) to the secondary terminals of the CT, meter positive to X1 and

negative to X2. Using a suitable low‐voltage battery, connect the negative terminal

to H2 of the CT. While watching the analog ammeter, apply a current pulse to the

CT by connecting and disconnecting the battery positive to H1 of the CT. If the

polarity is correct, the meter needle gives a positive flick on closing and a negative

flick on breaking the circuit

See also this thread http://cr4.globalspec.com/thread/33197

- MS