Abstract
A novel test cell is described, which is capable of providing a consistent level of partial discharge (PD) for generating UHF signals in GIS. The cell can be used to determine the sensitivity of UHF PD detection equipment. SF6 gas is not required and the device can operate from a low-current DC supply at less than 1 kV. Its use is demonstrated in the testing of a new method for coupling UHF signals using a sensor designed to fit the test injection loop terminals of current transformers. The experiments demonstrate that contact discharges in the cell generate suitably broadband signals and show that the coupler is capable of achieving a PD detection sensitivity of < 5 pC.
Original language | English |
---|---|
Pages | 407-410 |
Number of pages | 4 |
DOIs | |
Publication status | Published - Apr 2002 |
Event | 2002 IEEE International Symposium on Electrical Insulation - Boston, United States Duration: 7 Apr 2002 → 10 Apr 2002 |
Conference
Conference | 2002 IEEE International Symposium on Electrical Insulation |
---|---|
Country/Territory | United States |
City | Boston |
Period | 7/04/02 → 10/04/02 |
Keywords
- contact discharge
- test cell
- generating signals
- sensitivity verification
- uhfpd detection
- gis
- circuit breakers
- signal generators
- pulse measurements
- partial discharges
- mesh generation
- geographic Information Systems
- fault location
- current transformers
- coupling circuits
- circuit testing