Computer-controlled switching device
US4368394A · kind A · utility
Inventor
Key dates
| Filing date | May 14, 1981 |
| Grant date | Jan 11, 1983 |
| Priority date | — |
| Expiry date | May 14, 2001 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K5/00
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.