Lightning and surge arrester test apparatus and method
US6124714A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 9, 1998 |
| Grant date | Sep 26, 2000 |
| Priority date | — |
| Expiry date | Mar 9, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R31/52
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A lightning arrester tester includes two tubular poles respectively carrying probe terminals, one probe terminal being connected in series through a high-voltage rectifier and high-resistance circuit disposed within the pole to one terminal of a DC microammeter mounted on the outside of the one pole, the other probe terminal being connected through a high-resistance circuit housed within the second pole to the other meter terminal. A diode is connected in parallel with the meter to protect the meter from high leakage currents. In use, the probe terminals are respectively connected to a high-voltage power transmission or distribution line and one terminal of an arrester, the other terminal of which is grounded or, alternatively, to ground and to one terminal of an arrester, the other terminal of which is connected to a high-voltage power transmission or distribution line. The meter displays DC leakage current through the arrester.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.