Interruption capability of a fast vacuum circuit breaker with a short arcing time

Zhang, Bojian; Tan, Yaxiong; Ren, Li; Wang, Jianhua; Geng, Yingsan; Yanabu, S.

doi:10.1109/deiv.2016.7763998

Cited by 9 publications

(3 citation statements)

References 3 publications

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“…External radius = 240 mm, internal radius = 200 mm, height = 378 mm The vacuum interrupter worked with a fast short circuit current prediction algorithm and a phase control system. The moving contact was driven by an ultrafast electromagnetic repulsion mechanism, so the opening time (500 μs) and opening velocity (up to 5 m/s) could be achieved [6,15].…”

Section: Ceramic Envelopementioning

confidence: 99%

“…Conversely, multi-break VCBs, which are several vacuum interrupters connected in series, can eliminate the saturation effect and increase the breaking capacity [10]. Hence, the multi-break VCB has drawn more attention [11][12][13][14][15]. The total interruption time of VCBs with an ultra-fast electromagnetic repulsion mechanism and a fault current detection system can be reduced to 10-20 ms [13].…”

Section: Introductionmentioning

confidence: 99%

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Static Voltage Sharing Design of a Sextuple-Break 363 kV Vacuum Circuit Breaker

Yang

et al. 2019

Energies

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A balanced voltage distribution for each break is required for normal operation of a multi-break vacuum circuit breaker (VCB) This paper presented a novel 363 kV/5000 A/63 kA sextuple-break VCB with a series-parallel structure. To determine the static voltage distribution of each break, a 3D finite element method (FEM) model was established to calculate the voltage distribution and the electric field of each break at the fully open state. Our results showed that the applied voltage was unevenly distributed at each break, and that the first break shared the most voltage, about 86.3%. The maximum electric field of the first break was 18.9 kV/mm, which contributed to the reduction of the breaking capacity. The distributed and stray capacitance parameters of the proposed structure were calculated based on the FEM model. According to the distributed capacitance parameters, the equivalent circuit simulation model of the static voltage distribution of this 363 kV VCB was established in PSCAD. Subsequently, the influence of the grading capacitor on the voltage distribution of each break was investigated, and the best value of the grading capacitors for the 363 kV sextuple-break VCB was confirmed to be 10 nF. Finally, the breaking tests of a single-phase unit was conducted both in a minor loop and a major loop. The 363 kV VCB prototype broke both the 63 kA and the 80 kA short circuit currents successfully, which confirmed the validity of the voltage sharing design.

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Section: Ceramic Envelopementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Static Voltage Sharing Design of a Sextuple-Break 363 kV Vacuum Circuit Breaker

Yang

et al. 2019

Energies

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“…The total interruption time of vacuum circuit breaker (VCB) with ultra‐fast electromagnetic repulsion mechanism and short‐circuit current identification system can be shortened to 10–20 ms [1]. However, the breakdown voltage of VCB is linear to a distance within 10 mm.…”

Section: Introductionmentioning

confidence: 99%

Study on voltage distribution characteristic of a 363 kV fast multi‐break vacuum circuit breaker

Huang

et al. 2019

J. eng.

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A Novel Control Strategy of Phase-Controlled Switching Technology for Vacuum Circuit Breaker

Liu

Wang

et al. 2022

IEEE Access

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The opening and closing of a vacuum circuit breaker in the selected phase of the system voltage and the associated electrical equipment plug in or disconnect the electrical system with minimal impact on itself and the system. To realize this and ensure the control precision and stability of its action process, this study designs the drive motor and controller of a vacuum circuit breaker actuator. Additionally, a new function-switching pseudo-differential control (FPD) strategy is based on the feedback element principle. The control strategy avoids the direct differentiation of the controlled variables and has the ability of a fast dynamic response and anti-interference. At the same time, according to the moving process of the circuit breaker contacts, the control parameters are directly assigned to the system in stages, which reduces the amount of calculation and enhances the response speed of the control system. According to the research on the motor actuator movement process, the motor actuator and its control system of a 40.5 kV vacuum circuit breaker are developed and verified by closing operation in the selected phase, and the experimental results show the effectiveness of the proposed control strategy.

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Interruption capability of a fast vacuum circuit breaker with a short arcing time

Cited by 9 publications

References 3 publications

Static Voltage Sharing Design of a Sextuple-Break 363 kV Vacuum Circuit Breaker

Static Voltage Sharing Design of a Sextuple-Break 363 kV Vacuum Circuit Breaker

Study on voltage distribution characteristic of a 363 kV fast multi‐break vacuum circuit breaker

A Novel Control Strategy of Phase-Controlled Switching Technology for Vacuum Circuit Breaker

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