Electrical tester
US9923377B2 · kind B2 · utility
1Cited by
3References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 9, 2013 |
| Grant date | Mar 20, 2018 |
| Priority date | — |
| Expiry date | Aug 9, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02H7/18
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electrical equipment cabinet has a standby battery to supply current when a mains connection is not available. In normal operation the battery is maintained charged by the mains supply. In order to test the condition of the battery, a measuring system is arranged to operation in co-operation with a test of a residual current detection device, which temporarily disconnects the mains supply, thus measuring the condition of the battery, when under load.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.