111. A capacitor bushing forms arm ab of a Schering bridge and a standard capacitor of 500 pF capa citance
111. A capacitor bushing forms arm ab of a Schering bridge and a standard capacitor of 500 pF capa citance
Delmar's Standard Textbook Of Electricity
7th Edition
ISBN:9781337900348
Author:Stephen L. Herman
Publisher:Stephen L. Herman
Chapter21: Resistive-capacitive Series Circuits
Section: Chapter Questions
Problem 6RQ: A 15-F AC capacitor is connected in series with a 50 resistor. The capacitor has a voltage rating...
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111. A capacitor bushing forms arm ab of a Schering bridge and a standard capacitor of 500 pF capa citance and negligible loss, forms arm ad. Arm bo consists of a non-inductive resistance of 300 S2. When the bridge is balanced arm cd has a resis- tance of 72.6 12 in parallel with a capacitance of 0.148 uF. The supply frequency is 50 Hz. Calculate the capacitance and dielectric loss angle of capacitor. Derive the equations for balance and draw the phasor diagram under conditions of balance. [Ans. 121 pF; 0.00338 rad] 16.
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