Fault and partial discharge location systems for gas-insulated transmission lines. Final report

Technical Report · Thu Dec 01 04:00:00 EST 1983

OSTI ID:5349544

Boggs, S A; Ford, G L; Fujimoto, N; Stone, G C

Partial discharge and faults in gas-insulated transmission line (GITL) can be difficult to locate. This report describes the development, testing, and application of systems for fault and partial discharge location in GITL. Both systems are based on timing of electromagnetic transients generated by a fault/partial discharge source. Both systems employ microcomputers to facilitate automated data acquisition and analysis. The major problems solved in developing the fault location system were coupling of high frequency signals from and between phases and isolation of high voltage short risetime signals from high speed digital logic. The problems addressed in the partial discharge location project include handling a large number of pulses which may include noise, the large dynamic range of partial discharge induced transients (> 80 dB), and achieving an accurate correlation resolution of 2 ns.

• Research Organization: Ontario Hydro Research Lab., Toronto (Canada)
• OSTI ID: 5349544
• Report Number(s): EPRI-EL-3313; ON: DE84920143
• Country of Publication: United States
• Language: English

Related Subjects

200300* -- Electric Power Engineering-- Power Transmission & Distribution-- (-1989)
24 POWER TRANSMISSION AND DISTRIBUTION
CURRENTS
ELECTRIC CURRENTS
ELECTRIC DISCHARGES
ELECTRICAL FAULTS
FLASHOVER
FLUORIDES
FLUORINE COMPOUNDS
HALIDES
HALOGEN COMPOUNDS
POWER TRANSMISSION LINES
SULFUR COMPOUNDS
SULFUR FLUORIDES