Question

Q.3 A solid dielectric specimen of relative permittivity of 3.0 shown in the following figure has an intern subjected to a voltage of 80 kV (rms). If the void is filled with air and the breakdown strength of air can be taken as 30 kV (peak)/cm, find the voltage at which an internal discharge can occur. (15 pts) al void of thickness 1 mm. The specimen is 10 mm thick and is 1mm 10 mm (rms) (15 pts) Q.3 A solid dielectric specimen of relative permittivity of 3.0 shown in the following figure has an internal void of thickness 1 mm. The specimen is 10 mm thick and is subjected to a voltage of 80 kV (rms). If the void is filled with air and the breakdown strength of air can be taken as 30 kV (peak)/cm, find the voltage at which an internal discharge can occur. 80kV (rms) 1mm 10 mm

Answer 1

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1 29 when the Volt 2KV