Development of a New Detection Method of Partial Discharge for EHV Long-Distance Cable Active Line

Katsuta, G.; Toya, A.; Endoh, Takeshi; Suzuki, Hiroshi; Sekii, Y.

doi:10.1541/ieejpes1990.111.11_1223

Cited by 3 publications

(1 citation statement)

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“…The principle of method 1 is introduced in [4]. Method one and method two have a minimum measurable PD level about 50 pic0 Coulomb (pC) in this substation.…”

Section: Pd Measurement For Cablesmentioning

confidence: 99%

A portable partial discharge measuring system for insulation condition monitoring

Gardiner¹,

Mathieson²,

Yue³

Proceedings of 1998 International Symposium on Electrical Insulating Materials. 1998 Asian International Conference on Dielectr

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A portable partial discharge (PD) measuring system, which uses novel PD sensors and a handhold digital storage oscilloscope (DSO), has been developed and used for on-line assessment and monitoring of the insulation condition of large machines and other apparatus. The PD sensors use high voltage high frequency current transformers (HVHFCT). These are small and non-intrusive and thus can be installed at several positions in a machine terminal withom opening the machine. The DSO is available off-the-shelf at low cost. It can be carried to different plants and connected to both PD sensors in a machine, and controlled via a laptop personal computer (LPC), for PD measurement, processing, and communication for remote insulation assessment and condition monitoring.This effective, convenient, and widely applicable technique has also been used to assess the insulation of cables and busbars. The simplicity of the portable PD measuring system is shown in this paper. Means of using the techniques for insulation assessment of large machines, high voltage cables, and busbars will also be introduced.

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“…The principle of method 1 is introduced in [4]. Method one and method two have a minimum measurable PD level about 50 pic0 Coulomb (pC) in this substation.…”

Section: Pd Measurement For Cablesmentioning

confidence: 99%