Bushing assembly with circuit interrupters including polyphase operating mechanism
US5600112A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 7, 1995 |
| Grant date | Feb 4, 1997 |
| Priority date | — |
| Expiry date | Jul 7, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H33/027
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A bushing assembly is provided that functions as a circuit interrupter for electrical equipment such as a power transformer or the like. The bushing assembly is mounted so as to extend through the housing of the electrical equipment and incorporates a circuit interrupter having separable interrupter contacts. The bushing assembly includes an insulating bushing and electrical connections for connecting the separable interrupting contacts between a power source connection external to the housing and an input connection internal to the housing that supplies the electrical equipment. The circuit interrupter includes a control arrangement for selectively operating the separable interrupting contacts. In one specific arrangement, the control arrangement is responsive to operate the separable interrupting contacts to interrupt the circuit when the current is above a predetermined level.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.