Trip signal verifying method and apparatus
US6611411B2 · kind B2 · utility
13Cited by
21References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 6, 2001 |
| Grant date | Aug 26, 2003 |
| Priority date | — |
| Expiry date | May 18, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02H3/05
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A verifying trip unit includes a microcontroller providing a plurality of input signals to a logic device for controlling a trip unit actuator. The logic device produces an output signal for controlling a trip unit actuator. In response to the plurality of input signals, the logic device provides an output signal indicative of a function performed on the signals for opening the circuit breaker contacts in an overcurrent condition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.