Compact high-voltage vacuum circuit breaker, a feasibility study

Schellekens, H.; Gaudart, G.

doi:10.1109/tdei.2007.369521

Cited by 28 publications

(6 citation statements)

References 4 publications

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“…In many previous researches on VI, multi-layer structures of internal shield have been recommended for improving the internal breakdown level of VI especially in high voltage ranges [8,9]. Two types of multi-layer shield structures were designed for 170kV VI.…”

Section: Shield Design For High Voltagementioning

confidence: 99%

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The experimental research of 170kV VCB using single-break vacuum interrupter

Ryu

Kim

Choi

et al. 2012

2012 25th International Symposium on Discharges and Electrical Insulation in Vacuum (ISDEIV)

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A newly developed coil-type electrode structure for high voltage vacuum interrupter (VI) of 170kV voltage level is presented in this paper. To evaluate the design results of electrode structure, magnetic field distributions on the center plane of gap between electrodes and on the surface of contact electrodes are measured, and the vacuum arc behaviors during the current interruption in the vacuum chamber are observed. The multi-shield structure is suggested as the internal floating shield. The experimental results of the sample electrode and internal shield structure are compared with FE analysis results. The current interrupting tests are performed to evaluate the current breaking performance of 170kV VI according to IEC 62271-100.

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Section: Shield Design For High Voltagementioning

confidence: 99%

“…Multi shield structure of inner floating shield makes increasing the internal breakdown voltage of high voltage VI with long length possible [8,9].…”

Section: Introductionmentioning

confidence: 99%

The experimental research of 170kV VCB using single-break vacuum interrupter

Ryu

Kim

Choi

et al. 2012

2012 25th International Symposium on Discharges and Electrical Insulation in Vacuum (ISDEIV)

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“…Based on the variation law of excitation parameters under different working conditions, a transformer fault identification criterion based on parameter identification is developed. The basic principle of excitation parameter identification is introduced through the analysis of the electromagnetic relationship between the primary and secondary sides of the transformer, laying the foundation for the research of transformer monitoring schemes based on intelligent identification of excitation parameters [1] .…”

Section: Introductionmentioning

confidence: 99%

Research on transformer parameter identification method

Ren,

Li,

Hao

et al. 2024

Eighth International Conference on Energy System, Electricity, and Power (ESEP 2023)

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Transformers are the core components of power transmission, and their operating status directly affects the safety and stability of the power system. Once a power transformer malfunctions, it can lead to equipment damage or even power outage accidents, resulting in adverse social impacts and significant losses. The rapid development of smart grids and the rapid advancement of science and technology have put forward higher requirements for monitoring the status of substation equipment. Therefore, it is necessary to conduct online monitoring of the operating conditions of transformers and identify their excitation parameters through effective means to reflect internal abnormalities and faults, in order to avoid the occurrence of malignant accidents.

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“…The collected fault feature information and instantaneous waveform are sent to the monitoring center, and cloud computing, data analysis, alarm display notification, fault statistical retrieval, and query reports are carried out through system software, guiding maintenance personnel to quickly and accurately find the fault point, To provide a powerful means to improve work efficiency and reduce the labor intensity of maintenance personnel. At the same time, fault information can be sent to the mobile phones of the heads of various power supply production departments and line maintenance personnel through SMS, which can effectively improve the automation and modernization level of distribution line fault detection and provide scientific and effective basis for line safety in a timely manner [1] . communication between the collector and the server is ensured through TCP/IP three time handshake, and the collector and server are kept alive through heartbeat packets.…”

Section: Introductionmentioning

confidence: 99%