Circuit interrupter with ground fault current transformer
US10637227B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 28, 2017 |
| Grant date | Apr 28, 2020 |
| Priority date | — |
| Expiry date | Sep 29, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02H3/334
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A circuit interrupter including a first set of separable contacts, a second set of separable contacts, a first operating mechanism structured to open the first set of separable contacts, a second operating mechanism structured to open and close the second set of separable contacts, and an electronic trip unit including a routine structured to detect a fault condition and a type of the fault condition, to control the second operating mechanism to open the second set of separable contacts in response to detecting a first type of fault condition, and to control the second operating mechanism to close the second set of separable contacts a predetermined amount of time after controlling the second operating mechanism to open the second set of separable contacts.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.