Research Article

Interrupting Short-Circuit Direct Current Using an AC Circuit Breaker in Series with a Reactor

Table 2

DC fault behavior of power converters.

Technology Fault current breaking capability Fault current limitation capability

Diode rectifiers NoNo
Forced commutated “active” rectifiers using IGBTs, IGCTs, etc. with free wheeling diodes NoNo
Thyristor-controlled rectifiers At first AC side current zero No
Isolated DC-DC converters with HF transformer Within one HF half cycle Yes