| 摘要 |
PURPOSE:To supply power from a bypass power source only to loads, which has become overload, and continue the power supply from USP to other loads. CONSTITUTION:The currents flowing to each load 16a, 16b,... are detected with a.c. machines 31a, 31b,..., and then these currents are given to an overcurrent detector 32. The detector 32 judges whether the input current is above the set value or more. The results of judgment are given from the detector 32 to the off command transmitter 33 and a gage signal generator 34. Hereby, power is supplied to the load 16a by turning off the second switch 17a and turning on a semiconductor switch 19a. |
