Tank-type switching device
US9182447B2 · kind B2 · utility
0Cited by
2References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 9, 2011 |
| Grant date | Nov 10, 2015 |
| Priority date | — |
| Expiry date | Mar 17, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02B13/065
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A discharge location determination unit includes: discharge detection circuits connected to metal electrodes, respectively, and to which a signal due to discharge is input; and a calculation circuit to which signals output from the discharge detection circuits are input, wherein, if the intensity difference or intensity ratio between the two output signals is within a predetermined value, the calculation circuit determines that the discharge location is inside a tank, otherwise the calculation circuit determines that the discharge location is outside the tank.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.