Detecting characteristics of various type antennas on partial discharge electromagnetic wave radiating through insulating spacer in gas insulated switchgear

Kaneko, Shuhei; Okabe, Shigemitsu; Yoshimura, Manabu; Muto, Hirotaka; Nishida, C.; Kamei, Mitsuhito

doi:10.1109/tdei.2009.5293961

Cited by 57 publications

(30 citation statements)

References 9 publications

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“…For instance, in one study it was compared with four other antennas, the horn, biconical log-periodic, loop and modified dipole antennas [24]. As a result, the modified dipole had the highest sensitivity because this was designed not only to receive the EM-waves, but also to detect the potential difference between the flanges of the GIS enclosure by electrically connecting the antenna poles to the GIS metal structure [24]. In another study it was shown that by modifying a dipole antenna the power gain decreases from 19dB to 9dB [25] between 100MHz -3.1GHz.…”

Section: Dipole Antennamentioning

confidence: 99%

Two planar antennas for detection of partial discharge in gas-insulated switchgear (GIS)

Lozano-Claros

Čustović

Elton

2015

2015 IEEE International Conference on Communication, Networks and Satellite (COMNESTAT)

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The detection of partial discharge in GIS plays a pivotal role in preventing and mitigating severe operational failure and damage in insulation elements. Partial discharge progressively degrades the insulating medium and, as a result electrical breakdown can occur in GIS. Despite various techniques used for PD detection, the RF analysis is extensively used because it is highly reliable, has good sensitivity and the largest bandwidth.The objective of this study is to examine two applicable planar antennas for detecting the RF energy of partial discharge in GIS infrastructure. Namely, a planar complex spiral antenna and a fractal tree log-periodic dipole antenna which are located on the GIS junction of segments.

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Section: Dipole Antennamentioning

confidence: 99%

Two planar antennas for detection of partial discharge in gas-insulated switchgear (GIS)

Lozano-Claros

Čustović

Elton

2015

2015 IEEE International Conference on Communication, Networks and Satellite (COMNESTAT)

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“…FDTD simulation has also been applied to study the propagation characteristics of electromagnetic wave caused by PD power cables [19] and GIS [20] [21]. There are other computational methods that can be used to analyze PD characteristics and electromagnetic waves for examples, finite element method (FEM) [22] and finite integration technique (FIT) [23] that have been demonstrated to investigate electromagnetic wave propagation through insulating spacer in GIS.…”

Section: Introductionmentioning

confidence: 99%

Characterizing the Sensitivity of UHF Partial Discharge Sensors Using FDTD Modeling

et al. 2013

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Ultra high frequency (UHF) partial discharge sensors are widely used for condition monitoring and defect location in the insulation systems of high voltage equipment. Designing sensors for specific applications often requires an iterative process of manufacture, test, and mechanical modifications. This paper demonstrates the use of finite-difference time-domain (FDTD) simulation as a tool to predict the frequency response of a UHF sensor design. Using this approach, the design process can be simplified and parametric studies can be conducted in order to assess the influence of component dimensions and material properties on the sensor response. The modeling approach is validated using a broadband UHF sensor calibration system, which uses the step response of the sensor to determine its frequency-domain transfer function. The use of a transient excitation source is particularly suitable for modeling using FDTD, which is able to simulate the step response output voltage of the sensor, from which the frequency response is obtained using the same post-processing applied to the physical measurement. Comparisons between simulation and measurement are made for three different sensors, demonstrating sensitivity agreement to within about 10%. Some examples of simple parametric studies carried out using the FDTD model are also presented.

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“…Partial discharge (PD) detection is the most effective method to monitor and diagnose the insulation condition of high voltage apparatus [1][2][3][4][5][6][7][8]. PD detection method is of importance among the various diagnostic techniques, since it is non-destructive, non-intrusive and can qualitatively describe the integrity of insulation system.One of the promising PD diagnostic techniques is the ultrahigh frequency (UHF) electromagnetic wave detection method that has been widely used for measuring insulation performance in gas-insulated switchgear (GIS) due to its advantageous characteristics, such as high sensitivity, wide detection range and less external disturbances [9][10][11][12][13][14][15][16][17][18][19].…”

Section: Introductionmentioning

confidence: 99%

“…Sensors strongly influence the sensitivity of PD measurement system. Some experiments on detecting characteristics of various types antenna have already been conducted [10]. Loop sensor is one of PD detectors to measure UHF signal emitted from partial discharge source.…”

Section: Introductionmentioning

confidence: 99%

Characteristics of External Loop Sensor Located Near Bushing on Partial Discharge Induced Electromagnetic Wave Measurement

Sriyono¹,

Kim

Khayam

et al. 2013

ijeei

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For transmitting a huge electrical energy, high voltage transmission systems are commonly operated. Due to high reliability and less space required, gas insulated substation (GIS) are widely used. In a defect experienced GIS, partial discharge (PD) usually takes place. Partial discharge (PD) monitoring technique using UHF method becomes more popular because of its higher signal to noise (S/N) ratio. Amongst novel sensors, loop sensor could be a candidate for PD detector to measure UHF signal emitted from PD source. This paper presents the experiment results on characteristics of loop sensors. The characteristics of three loop sensors with varying diameter were examined using a spectrum analyzer and a network analyzer to obtain frequency characteristic and optimum operating frequency (S11) parameter, respectively. Then, PD experiment was conducted on 66kV GIS model having floating electrode and free metallic particles as its PD source. The loop sensors were placed far external to GIS bushing to measure leaked PD signal from it. The influences of the sensor diameter and the sensor distance from GIS bushing on PD detection sensitivity were also examined. Based on IEC-60270 standard measurement, the highest sensitivity of 30 pC was obtained from this investigation. The result suggests that higher sensitivity could be achieved with proper shielding and suitable filter design against external noise.

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Detecting characteristics of various type antennas on partial discharge electromagnetic wave radiating through insulating spacer in gas insulated switchgear

Cited by 57 publications

References 9 publications

Two planar antennas for detection of partial discharge in gas-insulated switchgear (GIS)

Two planar antennas for detection of partial discharge in gas-insulated switchgear (GIS)

Characterizing the Sensitivity of UHF Partial Discharge Sensors Using FDTD Modeling

Characteristics of External Loop Sensor Located Near Bushing on Partial Discharge Induced Electromagnetic Wave Measurement

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