The Mathematical Model of Contact Resistance and Injected Current in DRM Tests of SF<sub>6</sub> Circuit Breaker

Liu, Yakui; Zhang, Guogang; Yang, Jun; Zhao, Ke; Gao, Shan

doi:10.1109/tcpmt.2017.2768400

Cited by 9 publications

(8 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The implementation of this technique and its repeatability have been recently focused in many efforts. Reference [38]- [42] indicated that the measured resistance in this test is dependent on the injected DC current and opening velocity. The resistance decreases with an increase in the injectedcurrent and decrease of the velocity.…”

Section: Dynamic Resistance Measurementmentioning

confidence: 93%

Condition Monitoring of High Voltage Circuit Breakers: Past to Future

Razi-Kazemi

Niayesh

2021

IEEE Trans. Power Delivery

View full text Add to dashboard Cite

High voltage circuit breakers (HVCBs) play a critical role on providing the desired reliability, and resiliency in power systems. In order to extend their lifetime and predict the failures, various maintenance policies could be applied on these critical components. Amongst these strategies, condition-based maintenance (CBM) provides a satisfactory agreement with future smart environment. This paper aims to provide an insight into the relevant developments in this subject and to explore the viable visions compatible with future research stream. Accordingly, three directions, i.e. diagnostic signals, intelligent modelling and using monitoring data in asset management have been addressed in this paper. It presents challenges dealing with real-time assessment of the diagnostic signals relating to measurements, and analyses. Subsequently, the issues associated with using artificial intelligent (AI) and Machine learning for providing intelligent algorithms have been discussed. Finally, the connection between the monitoring data and the asset management approach is investigated. The latter is looking for the subjects including remaining lifetime estimation, prioritization, and health index definitions. This paper has attempted to make a bridge from past to future research trends in the failure diagnosis of HVCBs.

show abstract

Section: Dynamic Resistance Measurementmentioning

confidence: 93%

Condition Monitoring of High Voltage Circuit Breakers: Past to Future

Razi-Kazemi

Niayesh

2021

IEEE Trans. Power Delivery

View full text Add to dashboard Cite

show abstract

“…In recent years, several studies have been developed on this theme [4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22]. However, these studies do not present an agreed methodology for measurement and analysis to define reference parameters to correlate the DRM results to the level of contact wear.…”

Section: Introductionmentioning

confidence: 99%

Methodology for Circuit Breaker Contact Diagnosis through Dynamic Resistance Measurements and Fuzzy-Logic-Based Analysis

Souza,

Lira,

Costa

et al. 2024

Energies

View full text Add to dashboard Cite

This paper presents a methodology capable of measuring, processing, and extracting contact resistance parameters that enable the identification of the contact degradation level inside arc extinction chambers in medium- and high-voltage circuit breakers (CB). To determine the contact degradation level, an algorithm was developed to extract the characteristic parameters from the results of dynamic resistance measurement (DRM). To analyze the dataset parameters, this work employs the combination of different statistical tools, such as boxplots and fuzzy logic, enabling the evaluation to be conducted without the subjectivity inherent in human decision. Therefore, a more objective and reliable diagnosis could be achieved. The DRM tests were performed on two types of minimum-oil CB (MOCB), 800 A/15 kV/12.5 kA (CB-A) and 2000 A/72.5 kV/31.5 kA (CB-B and CB-C). For CB-A and CB-B, three contacts were utilized for each CB, with significant contact degradation. For CB-C, a single contact was employed without significant degradation. The DRM curves of the CB-C contact were used as the reference for evaluation of the CB-B contacts. For this purpose, a new DRM system was developed. The proposed methodology can be defined as a complement for other diagnostic techniques, serving as a non-subjective asset management tool, supporting decisions regarding equipment interventions.

show abstract

“…Therefore, for the complete consolidation of the DRM as contact degradation level technique, additional parameters beyond the area under the DRM curve should be addressed. Additional evaluating parameters were studied over the years, such as: the level of mass transferred by the contacts [15]; acoustic vibration [16]; average arcing and MC resistances (MCRs) [17, 18]; time difference between separation of the main and AC [19] and; maximum resistance over the entire curve [20].…”

Section: Introductionmentioning

confidence: 99%

Analysis of alternative parameters of dynamic resistance measurement in high voltage circuit breakers

et al. 2019

View full text Add to dashboard Cite

Throughout its lifetime, high-voltage circuit breaker (HVCB) contacts suffer from inevitable degradation processes, especially during the formation of electric arcs. Highly degraded contacts can reduce the current interruption capacity and increase the chances of operational faults, which might lead to considerable financial losses. Therefore, the use of efficient evaluating techniques is a key factor to achieve systems reliability. The dynamic resistance measurement (DRM) is a technique that can be used to evaluate the degradation level of HVCB' contacts. It stands out from the usual technique, static resistance measurement, by allowing the assessment of both the main contacts and the arcing contacts (ACs). Usually, the mean resistance or the area under the DRM curve is used to estimate the AC degradation. However, DRM is a non-standardised technique and there are no specified parameters to evaluate the real wear conditions. Therefore, an analysis of alternative parameters extractible from the DRM technique is presented in this study, such as amplitude and variance of the DRM curve. The results attest the possible use of more than one parameter for the continuous evaluation of HVCB ACs, characterising the DRM as a more complete and precise diagnosis tool.

show abstract

The Mathematical Model of Contact Resistance and Injected Current in DRM Tests of SF₆ Circuit Breaker

Cited by 9 publications

References 17 publications

Condition Monitoring of High Voltage Circuit Breakers: Past to Future

Condition Monitoring of High Voltage Circuit Breakers: Past to Future

Methodology for Circuit Breaker Contact Diagnosis through Dynamic Resistance Measurements and Fuzzy-Logic-Based Analysis

Analysis of alternative parameters of dynamic resistance measurement in high voltage circuit breakers

Contact Info

Product

Resources

About

The Mathematical Model of Contact Resistance and Injected Current in DRM Tests of SF6 Circuit Breaker

Cited by 9 publications

References 17 publications

Condition Monitoring of High Voltage Circuit Breakers: Past to Future

Condition Monitoring of High Voltage Circuit Breakers: Past to Future

Methodology for Circuit Breaker Contact Diagnosis through Dynamic Resistance Measurements and Fuzzy-Logic-Based Analysis

Analysis of alternative parameters of dynamic resistance measurement in high voltage circuit breakers

Contact Info

Product

Resources

About

The Mathematical Model of Contact Resistance and Injected Current in DRM Tests of SF₆ Circuit Breaker