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ELEC4611 - Power System Equipment MID-SESSION EXAM Plus Solutions
NewELEC4611 - Power System Equipment MID-SESSION EXAM Duration: 75 minutes, closed book, answer all questions, use pens only. Q1 Consider a coaxial geometry of dielectric material with inner radius a, outer radius b, and applied voltage V. The electric field in the insulation at a radial distance r is: ln V E r r b a A power cable has a single type of dielectric material where a=25mm, b=45mm. The rated voltage of this cable is 76 kV (rms) phase-to-ground. a. Determin...
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ELEC4611 Power System Equipment MID-SESSION EXAM | University of New South Wales
PopularELEC4611 Power System Equipment MID-SESSION EXAM | University of New South Wales ELEC4611 Power System Equipment MID-SESSION EXAM | University of New South Wales
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ELEC4611 Power System Equipment SAMPLE MID-SESSION EXAM
NewELEC4611 - Power System Equipment SAMPLE MID-SESSION EXAM Duration: 90 minutes, closed book Q1 (a) Consider a coaxial geometry of dielectric material with inner radius a, outer radius b, and applied voltage V. The electric field in the insulation at a radial distance r is: ln V E r r b a V/m A power cable uses a single type of dielectric material where a=15mm, b=25mm. The material relative permittivity is r 2.3 . The rated voltage across the cable insulatio...
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