A specimen is tested for insulation resistance by the loss of charge method by discharging a capacitor C=17 nF through it. The specimen capacitance is 3.4 nF. It is observed that after charging the voltage falls from 260 V to 170 V in one minute. If the voltmeter used has a resistance of 10 G2, and if the voltmeter was connected for only the last 10 seconds of the minute, answer the following: Determine the insulator resistance. Oa. 9.83 GO Ob. 7.83 GO Oc. 8.83 GO Od. 6.83 GO If only conduction losses occur, find the operating frequency to obtain a complex relative permittivity of e*=4.1-J0.0002 Oa. 120.63 Hz Ob. 124.63 Hz Oc. 122.63 Hz Od. 118.63 Hz الهندسة الكهربائية EE Committee
A specimen is tested for insulation resistance by the loss of charge method by discharging a capacitor C=17 nF through it. The specimen capacitance is 3.4 nF. It is observed that after charging the voltage falls from 260 V to 170 V in one minute. If the voltmeter used has a resistance of 10 G2, and if the voltmeter was connected for only the last 10 seconds of the minute, answer the following: Determine the insulator resistance. Oa. 9.83 GO Ob. 7.83 GO Oc. 8.83 GO Od. 6.83 GO If only conduction losses occur, find the operating frequency to obtain a complex relative permittivity of e*=4.1-J0.0002 Oa. 120.63 Hz Ob. 124.63 Hz Oc. 122.63 Hz Od. 118.63 Hz الهندسة الكهربائية EE Committee
Delmar's Standard Textbook Of Electricity
7th Edition
ISBN:9781337900348
Author:Stephen L. Herman
Publisher:Stephen L. Herman
Chapter20: Capacitance In Ac Circuits
Section: Chapter Questions
Problem 2PA: You are working in an industrial plant. You have been instructed to double the capacitance connected...
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