| 摘要 |
PROBLEM TO BE SOLVED: To reset a lock series to return it to the movement of a multiple series while a single series is being operated with proper movement by comparing the control angel of a 12-phase controller with that of the 12-phase controller during a proper operation, and outputting a signal indicating that both of them meet each other if so. SOLUTION: A A-series return discriminating circuit 52 outputs a A-series reset command (n) when an accordance confirming signal (m) is received from both of two 12-phase controller (A). A flip-flop circuit 54, when it receives a reset command (n), opens the gate of a transmitting circuit 27 to release the output lock of an ignition pulse. The selection circuit 55 of a B-series polar common control circuit 5 and the selection circuit 56 of a B-series 12-phase control circuit 6, when they receive the reset command (n), perform normal comparative selection output. As a result, the output of the lock series can be returned after meeting the output of the series during normal operation and reset to duplex series operation again. It is thus possible to prevent a significant effect from being given to an electric power system. |
