| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a breaker actuation prevention system which can supply a plurality of power tools with power at the same time from the same power system thereby driving it, and also to eliminate the use of a specified plug socket which has a mechanism where priority is determined in advance, and besides to prevent the errors in processing and the accuracy in processing of a work accompanying the break of a power breaker. <P>SOLUTION: This system includes a first current detector 21 which detects all the currents I1 which flow to an air compressor 1 and an electric apparatus 4 connected to the same power system 60b. A control circuit 13 for the air compressor 1 is constituted to stop the supply of the current I2 flowing to the air compressor 1 or to drop the current value so that all the currents I1 may not get over the break current value (for example, 20A) of a breaker 64 on the basis of the output of the first current detector 21, in case that the air compressor 1 and other electric apparatus 4 have operated at the same time. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
