Burst protector for high-voltage device
US9899134B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 24, 2014 |
| Grant date | Feb 20, 2018 |
| Priority date | — |
| Expiry date | Jul 2, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H33/555
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The invention relates to a bursting device (1) for a high-voltage device (2). The bursting device (1) is suitable in particular for on-load tap changers or high-voltage transformers filled with a filling medium such as gas or oil. The bursting device (1) according to the invention has a bursting cork (3) with support blocks (7) arranged on the inner surface (3B). A shear pin (8) is in arranged in each receiving block (7), said shear pin being divided into a first portion (8A) and a second portion (8B). The first portion (8A) of the shear pin (8) protrudes into the receiving block (7). The second portion (8B) of the shear pin (8) is arranged below the circumferential edge (9) of an opening (5) of the high-voltage device (2).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.