| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a highly reliable power supply system in which installation cost can be reduced. <P>SOLUTION: In the power supply system where a first converter 6 connected with a commercial power supply 4 and a second converter 10 connected with an AC generator 8 are connected in parallel to the DC side of an inverter 28 for specific load and an inverter 30 for general load, the specific load 20 and the general load 22 connected to the AC side of each inverter 28 and 30 are supplied with power from the commercial power supply 4 and the AC generator 8. When power supply from any one of the commercial power supply 4 or the AC generator 8 is stopped, power from an accumulation means 46 is supplied to the specific load 20 through the inverter 28 for specific load. When the voltage detected by a voltage detection means 48 lowers to a first set level, a control means 50 stops operation of the inverter 30 for general load to interrupt power supply to the general load 22, and the specific load 20 is supplied with power from the other of the commercial power supply 4 and the AC generator 8. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
