High Voltage TechniqueThe puncture strength of the insulator in a coaxial cylindrical electrode system with outer cylinder radius r2=10 cm varies from inner cylinder radius r1 [cm] to Ed=30+10/r1 [kV/cm].a) Determine the limits of the values that r1 can take in order to apply 80 kV to the system.b) Calculate the maximum field strength of the most suitable system for U=80 kV.c) For r1'=0.5 cm, r1"=3.5 cm and r1"'=8.5 cm, evaluate the system in terms of discharge events at U=80 kV.ANSWERS:a) 0.63 cm<r1<6.93 cmb) Emax=21.75 kV/cm

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College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

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High Voltage Technique

The puncture strength of the insulator in a coaxial cylindrical electrode system with outer cylinder radius r₂=10 cm varies from inner cylinder radius r₁ [cm] to E_d=30+10/r₁ [kV/cm].

a) Determine the limits of the values that r₁ can take in order to apply 80 kV to the system.
b) Calculate the maximum field strength of the most suitable system for U=80 kV.
c) For r₁'=0.5 cm, r₁"=3.5 cm and r₁"'=8.5 cm, evaluate the system in terms of discharge events at U=80 kV.

ANSWERS:

a) 0.63 cm<r₁<6.93 cm

b) E_max=21.75 kV/cm

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