Detection of partial discharge in power transformers using Rogowski coil and multiresolution analysis

Veloso, Giscard Francimeire Cintra; Silva, L. E. Borges da; Noronha, Ismael; Torres, Germano Lambert; Haddad, Josmar Ricardo; Pereira, Rondineli Rodrigues; Ahn, Se Un

doi:10.1109/cobep.2009.5347646

Cited by 6 publications

(5 citation statements)

References 10 publications

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“…[44], [45], and High Frequency Current Transducer (HFCT) Method [18]. Due to the presence of noise during online PD measurement, the conventional PD detection technique may have low sensitivity than laboratory measurements.…”

Section: Pd Measurement Techniquesmentioning

confidence: 99%

Review on Partial Discharge Diagnostic Techniques for High Voltage Equipment in Power Systems

Hussain

Hassan²,

Mahmood

et al. 2023

IEEE Access

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In modern power systems, condition based monitoring and diagnosis is essential to ensure the effective and reliable operation of different high voltage equipment (HVE). Compared to other monitoring techniques, partial discharges (PD) measurement is considered as a key method for assessing the insulation health condition. The benefits of PD condition monitoring of HVE can be extended by proper detection, identification, and interpretation of PD signal. Among both online and offline PD monitoring techniques, online PD monitoring is a very promising technique that assists in robust monitoring system which reduces the power failure incidents in power system components. Therefore, to understand recent developments and trends in theory and in practice, it is necessary to establish a holistic analysis of current online PD monitoring techniques for HVE in power systems. This paper presents an intensive literature review of current online PD monitoring techniques used for different high voltage electric components in power system. Finally, a smart PD monitoring techniques based on wireless sensor board is proposed. The proposed smart PD monitoring framework may be used to correctly estimate the insulation degradation in HVE and enhance the overall performance of power systems. INDEX TERMSDetection methods, feature extraction, high voltage equipment (HVE), online partial discharges (PD) measurement, PD monitoring, PD classification.

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Section: Pd Measurement Techniquesmentioning

confidence: 99%

Review on Partial Discharge Diagnostic Techniques for High Voltage Equipment in Power Systems

Hussain

Hassan²,

Mahmood

et al. 2023

IEEE Access

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“…The system consists basically of current transducers with adequate pass band, based on the technology of Rogowski coil, a signal conditioning circuit to adjust the signal measured data acquisition circuit, an analog/digital con-version circuit for high speed and resolution, a computer to the digital processing and storage of electrical variables and measures a smart program data consolidation, evaluation and diagnosis of the operating condition of the equipment. A signal processing technique that has brought important results in the detection of partial discharges is a technique called Wavelet Transform, which is used in this development [7]. This type of transform was also implemented in the process of breakdown of fundamental characteristics related to the conditions of the transformer insulation.…”

Section: Presentation Of the Proposed Devicementioning

confidence: 99%

“…Despite the small deformity in the third cycle, it can be said that the noise reduction was successful. In [7,9], a way of calculating the threshold of the noise is presented.…”

Section: Signal Processingmentioning

confidence: 99%

Early Failure Detection in Power Transformers

Silva¹,

Bonaldi²,

Oliveira³

et al. 2013

JPEE

Self Cite

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This paper presents equipment for early detection of failures in the insulation of power transformers, checking existing partial discharges inside. The equipment involves hardware, control and signal acquisition software, and signal analysis software. This equipment has a set of algorithms that were made with intelligent extraction techniques and interpretation of data. The degradation diagnosis of the equipment insulation is based on digital signal processing algorithms for extraction of features and also in artificial intelligence algorithms that allies a mining involving all the data linked to the equipment throughout its operating life can make an assessment of the operating conditions of the equipment and suggest interventions and provide an estimated time so that they have to be made.

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“…All these advantages lead to a spread in utilising this coil especially; modern relays do not require high power current transducers and allow applications of low power current transducers. Partial discharge (PD) detection is also one of the most important applications that Rogowski coil is used [15][16][17][18]. Hence, it is integrated with computational techniques to detect the location of PD in power lines that use covered conductors or cables with the advantages of low cost and ease of installation.…”

Section: Introductionmentioning

confidence: 99%

Power frequency AC voltage measurement based on double wound Rogowski coil

Ibrahim

Abd‐Elhady

2017

High Voltage

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This study presents a technique for power frequency AC voltage measurement. The proposed technique utilises a capacitor having a low capacitance in addition to a double wound Rogowski coil. This technique depends on capacitor current measurement using the double wound Rogowski coil. The voltage across the capacitor that connected in parallel with the system at which AC voltage is intended to be measured is reconstructed. The proposed technique is experimentally evaluated by designing the measurement system and using a digital signal processing board for the reconstruction processes. Moreover, the experimental results based on Rogowski coil measurements are compared with those obtained from reference techniques. Finally, the obtained results validate the efficacy of the proposed technique in power frequency AC voltage measurement.

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Detection of partial discharge in power transformers using Rogowski coil and multiresolution analysis

Cited by 6 publications

References 10 publications

Review on Partial Discharge Diagnostic Techniques for High Voltage Equipment in Power Systems

Review on Partial Discharge Diagnostic Techniques for High Voltage Equipment in Power Systems

Early Failure Detection in Power Transformers

Power frequency AC voltage measurement based on double wound Rogowski coil

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