Parallel MOV surge arrester
US5519564A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 8, 1994 |
| Grant date | May 21, 1996 |
| Priority date | — |
| Expiry date | Jul 8, 2014 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01C7/12
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The invention is a MOV based surge arrester that uses MOVs manufactured from a recently patented process. These new technology MOVs are significantly more uniform in their composition, resulting in more uniform performance. The uniform performance characteristics allow MOVs to be utilized parallel more successfully, eliminating many of the previous problems encountered. Instead of attaching wires to each MOV, the MOVs are packaged by placing them between a pair of contact plates, preferably manufactured from aluminum. The pair of plates are connected together and tensioned using non-conductive nuts and bolts. This packaging significantly increases the surface area between the contact plates and the MOVs. Wiring is minimized. Also, the use of the metal plates increases the ability of a surge suppresser to remove the heat generated in severe over-voltage situations. Additional plates can be utilized to increase surge arrestor surge current capability.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.