Method for determining wear and other characteristics of electrodes in high voltage equipment
US6448758B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 7, 2000 |
| Grant date | Sep 10, 2002 |
| Priority date | — |
| Expiry date | Jan 7, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02H7/055
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A diagnostic method for determining a characteristic of electrode contacts and/or contacted surfaces comprising the steps of: sensing, during a movement that causes an electrode to have a break contact event with a first contacted surface and to have a make contact event with a second contacted surface, an RF signal from at least one electrical discharge event during that movement; and using a parameter of the RF signal to diagnose the characteristic of the electrode contacts and/or contacted surfaces. In a preferred embodiment of the present invention, a step may be included of sensing, simultaneously with the RF signal sensing step, a vibration signal generated by at least one of the break contact event and the make contact event; and using a parameter of the vibration signal to assist in diagnosing the characteristic of the electrode contacts.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.