Connection tester for an electronic trip unit
US6429659B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 9, 2000 |
| Grant date | Aug 6, 2002 |
| Priority date | — |
| Expiry date | Mar 9, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H83/20
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A trip unit connection tester (10) is arranged to test the electrical connections (12) and (14) between a trip unit (16) and actuator (18) mounted within a circuit breaker (20). Tester (10) includes a power source (64) including a positive lead (68), and a negative lead (70). The positive lead (68) is coupled to a two-loop switch (58). The two loop switch (58) toggles between a first loop (98), and a second loop (100). The first loop (98) includes the power source (64), the two-loop switch (58), and the energy storage element (82) wherein the energy storage element (82) stores energy coming from the power source (64). The second loop (100) includes the two-loop switch (58), and the energy storage element (82), connections (12) and (14), and the actuator (18), wherein energy stored within the energy storage element (82) is released to the actuator (18).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.