(1) Measurement of DC magnetizing characteristics
In the "Differential Protection" software module, set the braking current Ir as DC current, change the Ir value successively, and at each magnetizing current, add or subtract the operating current Id to measure the operating current IDZ, and plot the braking characteristic curve.
(2) Measurement of ratio braking characteristics
In the "Differential Protection" software module, set the braking current Ir as the fundamental current, change the Ir value successively, and at each braking current, add or subtract the operating current Id to measure the operating current IDZ, and plot the braking characteristic curve.
(3) Measurement of second harmonic braking characteristics
In the "Differential Protection" software module, set the braking current Ir as the second harmonic current, change the Ir value successively, and at each braking current, add or subtract the operating current Id to measure the operating current IDZ, and plot the second harmonic braking characteristic curve.
(4) Measurement of high-order harmonic braking characteristics
In the "Harmonic Test" software module, set the braking current Ir as the superimposed current of various harmonics, change the value of a certain harmonic of Ir successively, and measure the operating current IDZ.
