A current transformer with extremely low leakage inductance is used to reduce the effective impedance of series capacitor system. The leakage inductance of the transformer is reduced to 2 nH by employing a special arrangement of windings. It is demonstrated that a current of 40 kA, the rise ...
After switching device 68 turns off, an RL circuit is formed with diode D2, resistor Rout and inductance Ls, with a positive voltage Vs on the transformer secondary side since the body diode 67 of device 66 (FIG. 2) conducts. The current through the leakage inductance falls to zero at ...