Method and system for detecting and isolating stray voltage
US7394259B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Aug 31, 2006 |
| Grant date | Jul 1, 2008 |
| Priority date | — |
| Expiry date | Aug 31, 2026 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01K7/027
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A stray voltage detection and isolation system. The stray voltage detection portion of the system includes a water delivery system electrically isolated from an electrical transmission system of an electric utility. Meters measure an electrical characteristic between a first test-point that is electrically connected to the water delivery system and a plurality of second test-points. The second test-points are at earth grounds at locations electrically connected to the first test-point. The location of a source of stray voltage can be determined by evaluating differences in the measured electrical characteristics. The stray voltage isolation portion of the system electrically isolates a water delivery system. A controller maintains an air gap between a water source and a first storage tank or between the first storage tank and a second storage tank. The second storage tank provides the electrically isolated water.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.