Synchronization of on-line PD detection and localization setups using pulse injection
- 13 May 2004
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE)
- Vol. 1 (10817735), 327-330
- https://doi.org/10.1109/icpadm.2003.1218418
Abstract
The development of an on-line PD detection system has its main challenges in the area of sensors and signal processing techniques. If localization is included by means of simultaneous signal detection at both cable ends, the problem arises of synchronizing the measuring systems at both sites accurately. One method, already successfully applied in off-line PD measurements, is the use of GPS. Besides its high costs, this system has one main disadvantage: it requires an external antenna in the line of sight of several satellites. This requirement may be a problem for on-line measurements because of the long measuring time. Another option to perform the synchronization is the injection of high-frequency pulses into one cable end and detecting them at the other end. Taking the propagation time along the cable length into account, this results in accurate synchronization of the measuring sides, without being dependent on any other system. This paper discusses several aspects of the pulse injection technique. The obtained resolution realized during field experiments with the method of pulse injection is within the resolution obtainable by means of GPS (100 ns).Keywords
This publication has 5 references indexed in Scilit:
- Sensors for on-line PD detection in MV power cables and their locations in substationsPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2004
- Propagation characteristics of three-phase belted paper cable for on-line PD detectionPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2003
- Partial discharge diagnostics of long and branched medium-voltage cablesPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2002
- PD detection in power cables using oscillating wave test systemPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2002
- Partial discharge. XXII. High frequency attenuation in shielded solid dielectric power cable and implications thereof for PD locationIEEE Electrical Insulation Magazine, 1996