Current limiter unit for molded case circuit breakers
US5428195A · kind A · utility
14Cited by
14References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 31, 1994 |
| Grant date | Jun 27, 1995 |
| Priority date | — |
| Expiry date | Jan 31, 2014 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H2033/163
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A self-contained current limiter unit allows lower short-circuit-rated circuit breakers to be utilized within industrial applications. The unit is electrically-connected in series with the circuit breakers and the protected load to limit the short circuit current to a fixed predetermined value while the circuit breaker trip unit responds to interrupt the circuit current. A single unit can be arranged in electrical series connection with a plurality of lower short-circuit-rated circuit breakers to allow a substantial savings in component and equipment costs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.