Optimisation of a sensor for onsite detection of partial discharges in power transformers by the UHF method

Lopez-Roldan, J.; Tang, Tao; Gaskin, M.

doi:10.1109/tdei.2008.4712667

Cited by 74 publications

(37 citation statements)

References 4 publications

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“…The main drawback of PD detection through antennas is the presence of noise sources due to FM, television (TV), Global System for Mobile Communications (GSM), and WiFi emissions, so the antenna response to both PD and noise is an interesting research topic for PD detection [16], [17]. The comparison of several antennas had been presented before [12], but a deeper analytical background for these devices (monopole, zigzag, cone shaped, etc.) was missing in order to model PD and noise detection capability.…”

Section: Introductionmentioning

confidence: 99%

Antenna Parametrization for the Detection of Partial Discharges

Robles

Sanchez-Fernandez

Albarracín‐Sánchez

et al. 2013

IEEE Trans. Instrum. Meas.

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Abstract-Partial discharge (PD) detection is a widely extended technique for electrical insulation diagnosis. Ultrahigh-frequency detection techniques appear as a feasible alternative to traditional methods owing to their inherent advantages such as the capability to detect PDs online and to locate the piece of equipment with insulation problems in substations and cables. In this paper, four antennas are thoroughly studied by means of their theoretical and experimental behavior when measuring electromagnetic pulses radiated by PD activity. The theoretic study of the band of frequencies in which the pulse emits and the measurement of the parameters S 11 are complemented with the frequency response and wavelet transform of a set of 500 time signals acquired by the antennas, and the results are analyzed in detail.

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Section: Introductionmentioning

confidence: 99%

Antenna Parametrization for the Detection of Partial Discharges

Robles

Sanchez-Fernandez

Albarracín‐Sánchez

et al. 2013

IEEE Trans. Instrum. Meas.

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“…It can be observed that the discharge quantity-time curves detected by the two antenna sensors have the same trend of variability, but the discharge quantity magnitude of the proposed UWB printed antenna is about 3.5 times as great as that of the existing straight wire monopole antenna [28]. For example, the magnitudes are 9427 pC and 2849 pC at 40 seconds.…”

Section: On-site Testmentioning

confidence: 85%

An Uwb Printed Antenna for Partial Discharge Uhf Detection in High Voltage Switchgears

Yang¹,

Peng²,

Yang³

et al. 2016

PIER C

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Abstract-As important fundamental equipment, high voltage switchgears are widely used in electric power systems and directly relative to the power reliability and quality. Partial discharge (PD) online monitoring is one of the most effective methods used for insulation testing and diagnosis in high voltage switchgears and power systems. This paper proposes a unique ultra-wide-band (UWB) antenna with high performance for PD ultra-high-frequency (UHF) detection in high voltage switchgears. Actual PD experiments were carried out, and the designed antenna was used for PD measurements. The measured results demonstrate that the proposed antenna has wide work frequency band, good omnidirectional radiation patterns and appreciable gain, which indicate that the proposed antenna is suitable for UHF online monitoring of PDs in high voltage switchgears.

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“…Several antennas for PD detection have recently been reported [1,[3][4][5]. These antennas, however, address multi-narrow-band operation [1,4] or achieve only modest VSWR performance (VSWR < 5) [3], or only work at higher frequency bands (0.75-1.5 GHz) and have no detailed specifications [5].…”

Section: Introductionmentioning

confidence: 99%

“…These antennas, however, address multi-narrow-band operation [1,4] or achieve only modest VSWR performance (VSWR < 5) [3], or only work at higher frequency bands (0.75-1.5 GHz) and have no detailed specifications [5]. Wideband antennas, operating in the lower radio frequency (RF) band, include discone antennas, biconical antennas, log-periodic antennas, and spiral antennas.…”

Section: Introductionmentioning

confidence: 99%

A compact wideband printed antenna for free-space radiometricdetection of partial discharge

Zhang¹,

Lazaridis²,

Abd‐Alhameed³

et al. 2017

Turk J Elec Eng & Comp Sci

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Abstract:A microstrip line-fed wideband printed antenna is presented for radio detection of partial discharge (PD). The novel simple structure antenna has compact size of 24 × 20 × 0.16 cm 3 (0.28 λs× 0.23 λs× 0.002 λs) and is suitable for radiometric PD wireless sensor nodes, where λs is the wavelength of the lowest frequency of the band (i.e. 0.35 GHz).A stepped and beveled radiation patch is used in combination with a slotted ground plane to achieve a wide fractional bandwidth of 119% (0.35 to 1.38 GHz) for a return loss better than 10 dB. Good radiation pattern characteristics are obtained across the frequency band of interest. The match between simulated and experimental results suggests that the design is sound and robust.

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Optimisation of a sensor for onsite detection of partial discharges in power transformers by the UHF method

Cited by 74 publications

References 4 publications

Antenna Parametrization for the Detection of Partial Discharges

Antenna Parametrization for the Detection of Partial Discharges

An Uwb Printed Antenna for Partial Discharge Uhf Detection in High Voltage Switchgears

A compact wideband printed antenna for free-space radiometricdetection of partial discharge

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