QuickField Sample ACElec2 Cylindrical capacitor

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ACElec2: Cylindrical capacitor • This is an example of calculation with QuickField FEA Software. • http://quickfield.com/advanced/acelec... • This is an example of the cylindrical capacitor simulation, performed with QuickField software. • Problem Type: • Axisymmetric problem of AC conduction. • Geometry: • Cylindrical capacitor • Capacitor consists of ceramic tube with silver electrodes mounted at the surface. • Given: • Relative permittivity of air ε = 1. • Relative permittivity of ceramic ε = 6. • Conductivity of ceramic g = 10-8 S/m; • Voltage U = 10 V. • Frequency f = 1000 Hz. • Problem: • Determine capacitance and dissipation factor of the capacitor. • Solution: • The value of dissipation factor can be calculated as • The value of dissipation factor can be calculated as tg(δ) = PA/PR. Capacitance can be calculated as C = q/U, where U is potential difference between electrodes and q - is a charge on electrodes. • Results: • Field distribution in cylindrical capacitor: • • Download Download simulation files http://quickfield.com/examples/acelec...

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