| 摘要 |
PCT No. PCT/AT80/00030 Sec. 371 Date May 14, 1981 Sec. 102(e) Date May 14, 1981 PCT Filed Sep. 26, 1980 PCT Pub. No. WO81/01092 PCT Pub. Date Apr. 16, 1981.A computer-controlled switching device allows the control of such devices as contactors-breakers, protection switches of motors and the like. The computer is connected through an analog-digital converter to at least one current consumption monitoring detector and gives switching orders. The switching device is comprised of a unit module incorporating the detector(s) reacting to the magnetic field generated by the conductor(s) supplying the device to be controlled, the analog-digital converter(s), the computer comprised of a microprocessor, adjusting elements connected to the computer for introducing comparison values and other characteristic values, a cut-off element controlled by the output of the computer, with the relative connection terminals and, optionally, a power-supply unit. The module and its housing have passages for leads to the device to be monitored and detectors are mounted in their proximity. |
