Current limiting circuit breaker stationary contact assembly with integral magnetic activating means
US4630014A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 1, 1985 |
| Grant date | Dec 16, 1986 |
| Priority date | — |
| Expiry date | Apr 1, 2005 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H73/045
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A stationary contact assembly is provided for a current limiting circuit breaker. The contact assembly includes a curved input arm which has a contact fastened thereon and a generally straight output arm which also has a contact fastened thereon and which has an opening for receiving the contact end of the input arm. The contacts are encapsulated in an insulating material which separates the contact arms from each other. A magnetic element is also embedded in the encapsulation material between the input and output contact arms. As current flows through the contact arms, a field is developed about the magnetic element which draws in an armature which reduces the opening force of the contacts.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.