| 主权项 |
1. A method for detecting disconnection of a three-phase cable, the method comprising:
operating, by a processor, a plurality of switching elements included within switching units each corresponding to respective phases of three-phase circuits configuring an output stage to switch the plurality of switching elements based on a predetermined criteria; operating, by the processor, the switching units to apply a current generated in an input stage to the switching elements determined to be switched on and off based on the switching; detecting, by a sensor, a current flow from the plurality of switching elements based on the applied current; and determining, by the processor, which of the three-phase circuits at the output stage is an open phase based on the detection result. |
