Interface breakdown-proof locomotive roof composite insulator
US9828005B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 24, 2014 |
| Grant date | Nov 28, 2017 |
| Priority date | — |
| Expiry date | Jun 24, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01B17/14
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An interface breakdown-proof locomotive roof composite insulator. The composite insulator comprises: a support body; and at least five shed groups arranged side by side along the axial direction that are provided around the sidewall of the support body, the at least five shed groups includes: at least four shed groups located on the upper end with each group including a large shed and a small shed; and at least one shed group located on the undermost end with each group including two small sheds. For such a shed structure, it is favorable to tolerate impulse voltage, and it is difficult for the interface to be broken down; the electric field on the interface even does not exceed 3 kV/mm, and even if a gas exists on the interface, it will not break through the interface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.