On-site condition assessment of HV cable terminations in service

Denissov, D.; Köhler, Wolfgang R.; Tenbohlen, Stefan; Grund, R.; Klein, Thomas; Kontaktsysteme, Pfisterer

doi:10.1049/cp.2009.1056

Cited by 2 publications

(1 citation statement)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For example, a 500 kV cable joint failure caused a serious power blackout in central area of Shanghai China on 5 June 2013. Partial discharges (PD) is a predecessor to breakdown of polymer insulation, thus PD measurement is an effective method to evaluate the insulation of power cable, and many kinds of sensors and methods have been developed [2][3][4][5][6][7][8][9]. Generally, there are mainly two ways for detecting PD pulses travelling along the cable: using high frequency current transformers or using capacitive couplers.…”

Section: Introductionmentioning

confidence: 99%

Numerical sensor design for partial discharge detection on power cable joint

Guo

Chen

et al. 2015

IEEE Trans. Dielect. Electr. Insul.

View full text Add to dashboard Cite

Partial discharges (PD) detection is an effective method to evaluate the insulation condition of power cable joint. However, optimization of the partial discharge sensor was hard to be achieved because of the complex nature of cable joint. In this paper, the waveform and frequency characteristics of the partial discharge pulse in power cable were studied with experiment firstly. Then, the partial discharge pulses were numerical modeled to be used as excitation in cable joint simulation model. Furthermore, an electromagnetic simulation method of PD propagation in cable joint with considering the frequency dependent dielectric parameter was proposed. Afterwards, the quantitative relation between the sensor sensitivity and the sensor structure was discussed based on the developed pulse model and cable joint model. Calculations and measurements indicated the numerical sensor design can be achieved with the proposed pulse numerical model and cable joint simulation method.Index Terms -Numerical design, partial discharge, power cable joint, simulation, pulse waveform, bandwidth.Much more attention has been paid in the pulse propagation in the power cable, and many algorithms about high frequency loss Manuscript

show abstract