Electrical load protection device
US4584623A · kind A · utility
39Cited by
6References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 7, 1983 |
| Grant date | Apr 22, 1986 |
| Priority date | — |
| Expiry date | Nov 7, 2003 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02H3/207
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Electronic circuitry senses over-voltage and under-voltage within narrow threshold limits, and voltage interruption, in the energization circuit of a sensitive load, such as a refrigeration compressor motor load, to protect against overheating damage and burn-out. Setting to a nominal operating line voltage is provided for to obviate readjustment to the threshold voltages of a window comparator utilized to sense over-voltage and under-voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.