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PIC simulation of Vacuum Arc

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

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PIC simulation of Vacuum Arc

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  1. PIC simulation of Vacuum Arc Mrunal Parekh VJTI-SIEMENS high voltage laboratory-Mumbai Electrical Research & Development Association

  2. How it Look like

  3. Schematic of vacuum Discharge

  4. Motivation • Vacuum arc physics – The crux for vacuum interrupter development • Mathematical approach for visualization of vacuum discharge process

  5. 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

  6. PIC Model • Tried three scenarios with different voltages: 1kV, 2kV, 4kV, 10kV • 2mm AK gap • 10mm AK gap • 20mm AK gap • with secondary electron and copper ion (Cu+1) emission from anode

  7. Case (a) 2 mm AK gap 1kV 2kV 10kV 4kV

  8. Case (a) 2 mm AK gap with 1kV

  9. Case (c) 20mm AK gap 1kV 2kV 10kV 4kV

  10. Case (c) 20mm AK gap with 1kV

  11. 10mm 1 kV 20mm 1 kV

  12. 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

  13. Thank you..

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