Disconnect switch with early break feature
US7324314B2 · kind B2 · utility
1Cited by
7References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 27, 2004 |
| Grant date | Jan 29, 2008 |
| Priority date | — |
| Expiry date | Apr 2, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02H7/1227
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A disconnect switch that provides a simple and economical means for preventing the possibility of stray/surge current from damaging the solid state components of an inverter drive is provided. The disconnect switch includes early break auxiliary contact(s) that open before the standard power contacts when the switch is turned off by an operator and close after the standard power contacts when the switch is turned on by an operator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.