Auto recovering protection of electromechanical components in a high magnetic field
US10096988B2 · kind B2 · utility
1Cited by
7References
17Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 12, 2012 |
| Grant date | Oct 9, 2018 |
| Priority date | — |
| Expiry date | Jan 29, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02H7/20
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An apparatus (100) protects a device (80) which has a ferrous electromechanical component which saturates in a high magnetic field (40) and draws a dangerously high electric current. A current sensor (110) senses current in excess of safe operating conditions of the protected device (80) in or near the magnetic field (40). A current switch (120) is controlled by the current sensor (110) and interposed between a power supply (90) and the device (80) to interrupt the current flow to the protected device (80) when the current sensor (110) senses current flow above a threshold due to the saturation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.