Interruption characteristics of vacuum circuit breaker and the application to DCCB

Tokoyoda, Sho; Inagaki, Takashi; Page, Frederick; Sato, Motohiro; Kamei, Kenji; Miyashita, Mitsuru; Ito, Hiroki

doi:10.1049/cp.2017.0029

Cited by 16 publications

(10 citation statements)

References 0 publications

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“…Both DCCB types require a mechanical switch. Vacuum interrupters (VIs) are an option as mechanical switch because the moving parts are relatively light and the di/dt interruption capability at current zero is superior compared to gas circuit breakers [3].…”

Section: Introductionmentioning

confidence: 99%

System Design of Fast Actuator for Vacuum Interrupter in DC Applications

Augustin

Garcia

Magnusson

et al. 2018

2018 28th International Symposium on Discharges and Electrical Insulation in Vacuum (ISDEIV)

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One of the major challenges of DC circuit breakers is the required fast mechanical actuator. In this paper, a Thomson coil actuator system for a vacuum interrupter is designed. Active damping is used to decelerate the moving contacts. Challenges are discussed, especially concerning the power supply needed for the Thomson coil actuator. The design philosophy is explained and FEM simulation results are presented. The results indicate that a wide range of combinations of drive circuit capacitance and voltage fulfill the requirements for armature acceleration. However, active damping requires a very careful selection of drive circuit voltage and timing of applied damping.

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Section: Introductionmentioning

confidence: 99%

System Design of Fast Actuator for Vacuum Interrupter in DC Applications

Augustin

Garcia

Magnusson

et al. 2018

2018 28th International Symposium on Discharges and Electrical Insulation in Vacuum (ISDEIV)

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“…As an example, to ensure high availability in multi-terminal HVDC systems (MTDC), DC circuit breakers (CBs) will be necessary: DC faults can be isolated by DCCBs to avoid the shutdown of the whole DC grid, enhancing the reliability of power supply. HVDC-CBs are currently at a research stage, with a multitude of topologies proposed [24][25][26][27][28]. Such breakers should provide a breaking time of less than 2ms and a conduction loss of less than 0.1% [29].…”

Section: Hvdc Breaker Designmentioning

confidence: 99%

“…Compactness of design is also highly desirable. Purely mechanical CBs for DC protection have been suggested [27,28], but are generally considered too Typically they have a normal conduction branch, an interrupting branch and an energy dissipation branch. The mechanism used to achieve DC current interruption differs drastically between CB designs.…”

Section: Hvdc Breaker Designmentioning

confidence: 99%

Virtual Reality Interface for HVDC Substation and DC Breaker Design and Maintenance

Marsh

Barnes²,

Crowther³

et al. 2019

15th IET International Conference on AC and DC Power Transmission (ACDC 2019)

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“…Moreover, the LC circuit can be bulky and its circuit parameters are dictated by the di/dt and du/dt limitations of the mechanical switches at current zero. The di/dt capability at current zero is higher in vacuum interrupters (VIs) than in SF6 interrupters [11] and hence VIs are preferable. VIs are rated for medium voltage and thus, depending on the DC grid voltage, several VIs have to be connected in series.…”

Section: Introductionmentioning

confidence: 99%