pic simulation of vacuum arc
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PIC simulation of Vacuum Arc. Mrunal Parekh VJTI-SIEMENS high voltage laboratory-Mumbai Electrical Research & Development Association . How it Look like. S chematic of vacuum Discharge . Motivation. Vacuum arc physics – The crux for vacuum interrupter development - PowerPoint PPT PresentationTRANSCRIPT
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PIC simulation of Vacuum Arc
Mrunal ParekhVJTI-SIEMENS high voltage laboratory-Mumbai
Electrical Research & Development Association
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How it Look like
![Page 3: PIC simulation of Vacuum Arc](https://reader036.vdocuments.us/reader036/viewer/2022062520/568165c3550346895dd8ce25/html5/thumbnails/3.jpg)
Schematic of vacuum Discharge
![Page 4: PIC simulation of Vacuum Arc](https://reader036.vdocuments.us/reader036/viewer/2022062520/568165c3550346895dd8ce25/html5/thumbnails/4.jpg)
Motivation
• Vacuum arc physics – The crux for vacuum interrupter development
• Mathematical approach for visualization of vacuum discharge process
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Electrodynamic Model • Idea is to identify current density and heat flux in vacuum switch
• Considered Short circuit current of 40kA and 11kV system voltage as input parameter
•Solved Maxwell’s equation along with constitutive relations
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PIC Model • Tried three scenarios with different voltages: 1kV, 2kV, 4kV, 10kV
a) 2mm AK gapb) 10mm AK gapc) 20mm AK gap
with secondary electron and copper ion (Cu+1) emission from anode
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Case (a) 2 mm AK gap
1kV 2kV
4kV 10kV
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Case (a) 2 mm AK gap with 1kV
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Case (c) 20mm AK gap
1kV 2kV
4kV 10kV
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Case (c) 20mm AK gap with 1kV
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10mm 1 kV
20mm 1 kV
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conclusion • This Hypothetical study can help in setting the basis for studying breakdown phenomena in vacuum circuit breaker
• Approach can give visualization of vacuum breakdown process and partial statistics
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Thank you..