Capacitive Current Interruption by HV Air-Break Disconnectors With High-Velocity Opening Auxiliary Contacts

Chai, Y Yajing; Wouters, P.A.A.F.; Smeets, R.P.P.

doi:10.1109/tpwrd.2011.2155683

Cited by 12 publications

(2 citation statements)

References 7 publications

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“…The VFTO generated due to the disconnector switch operations in GIS and the associated VFTC could have a rise time ranging from 4 to 7 ns [14]. Compared with the VFTO, in addition to the characteristics described in the literature [15][16][17], the VFTC in the GIS bus will be directly transmitted to the input of the unit through the Rogowski coil of the electronic current transformer, causing sufficiently severe harm to the sampling unit and other equipment and disrupting its stable operation.…”

Section: Simulation Models Of Gis Disconnector Switching Circuit and ...mentioning

confidence: 99%

A Study to Resist Conduced Interference from GIS Bus-Charging Currents Switching for Electronic Current Transformer

et al. 2021

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In this paper, we study the conducted interference to an electronic current transformer introduced in the process of bus-charging currents which are caused by switching a gas insulated switchgear (GIS) disconnector. To cope with these issues, the EMTP-ATP and Matlab/Simulink software are used to carry out equivalent modeling simulations and experimental research, respectively. More specifically, the very fast transient current generated by disconnector switching (DS) is used as the input source of the equivalent simulation model of the Rogowski coil, and the characteristics of conducted interference waveforms of the Rogowski coil, the active integrator and filter outputs under single and multiple breakdowns are analyzed step by step. Moreover, several anti-interference methods are proposed to improve the resistance to the high-voltage and high-frequency conducted interference for the Rogowski coil, such as reducing the Rogowski cut-off frequency, increasing the transient voltage suppressor (TVS), active filter, and Cy capacitor. Besides, the study also reveals that the residual charge of the integral capacitor will discharge with a time constant τ = 1 s after arc quenching with the first-order discharge circuit, which is composed of the feedback resistance and the integral capacitor C. Lastly, the experimental results demonstrate the correctness of the modeling method proposed in this paper and the effectiveness of anti-interference measures.

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Section: Simulation Models Of Gis Disconnector Switching Circuit and ...mentioning

confidence: 99%

A Study to Resist Conduced Interference from GIS Bus-Charging Currents Switching for Electronic Current Transformer

et al. 2021

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“…Xie et al [7] analyzed and summarized the response law of displacement, strain and acceleration of porcelain bottle on the dynamic and static side of the disconnector under earthquake action. Through a series of laboratory tests, Y. Chai et al [8][9][10] studied the current breaking characteristics of the disconnector, and enhanced the current breaking ability of the high-voltage disconnecting switch.…”

Section: Introductionmentioning

confidence: 99%

Optimal Design of High-Voltage Disconnecting Switch Drive System Based on ADAMS and Particle Swarm Optimization Algorithm

et al. 2021

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This paper focuses on the analysis of the stability of the GW17 high-voltage disconnecting switch drive system. Firstly, the optimization model of the disconnector is established, and the simulation analysis is carried out by ADAMS (Automatic Dynamic Analysis of Mechanical Systems) and the simulation results are verified by experiments. Afterwards, ADAMS optimization design and particle swarm optimization algorithm (PSO) are used to optimize the drive system of the disconnector, and the results are verified on the experimental platform. After optimization, the space rod is reduced by 15 mm, the minimum corner angle of the lower conductive rod is reduced by 71.0%, the minimum folding arm angle is reduced by 88.7% and the maximum force of the ball pair is reduced by 35.7%, which realizes the lightweight of the rod, reduces the wear of the ball pair, and improves the stability of the equipment operation.

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Special Switching Situations

Smeets

Sluis

Kapetanovic

et al. 2014

Switching in Electrical Transmission and Distribution Systems

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Capacitive Current Interruption by HV Air-Break Disconnectors With High-Velocity Opening Auxiliary Contacts

Cited by 12 publications

References 7 publications

A Study to Resist Conduced Interference from GIS Bus-Charging Currents Switching for Electronic Current Transformer

A Study to Resist Conduced Interference from GIS Bus-Charging Currents Switching for Electronic Current Transformer

Optimal Design of High-Voltage Disconnecting Switch Drive System Based on ADAMS and Particle Swarm Optimization Algorithm

Special Switching Situations

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