This option allows neutralizing the residual magnetization of the power transformer core after the winding resistance test. The principle of the option is to apply a constant current of alternate polarities to the transformer winding, as per the IEEE 0062 1995 standard.
Constant current, voltage limited generator
Maximum test current: 7 A DC
Maximum test voltage: 70 V DC
Output current stability: better than 0.5% of the rated value
Automatic current direction reversal