Line voltage monitor
US3987393A · kind A · utility
7Cited by
1References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 29, 1974 |
| Grant date | Oct 19, 1976 |
| Priority date | — |
| Expiry date | Nov 29, 1994 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02H3/44
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A line voltage monitor for monitoring the voltage applied to electrical equipment and for providing an indication or protective disablement of the equipment in the event excessive variations occur in the line voltage. The line voltage monitor includes a steady state voltage sensing means and a transient voltage sensing means for detecting both types of voltage variations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.