Basic Electrical Engineering: Inductance and Capacitance You are an electrician working in an industrial plant. You discover the problem with a certain machine is a defective capacitor. The capacitor is connected to a 240-V AC circuit. The information on the capacitor reveals that it has a capacitance value of 10 µF and a voltage rating of 240 V AC. The only 10-µF capacitor in the storeroom is marked with a voltage rating 350 VDC. Can this capacitor be used to replace the defective capacitor? Explain your answer.

Basic Electrical Engineering: Inductance and Capacitance You are an electrician working in an industrial plant. You discover the problem with a certain machine is a defective capacitor. The capacitor is connected to a 240-V AC circuit. The information on the capacitor reveals that it has a capacitance value of 10 µF and a voltage rating of 240 V AC. The only 10-µF capacitor in the storeroom is marked with a voltage rating 350 VDC. Can this capacitor be used to replace the defective capacitor? Explain your answer.

Delmar's Standard Textbook Of Electricity

7th Edition

ISBN:9781337900348

Author:Stephen L. Herman

Publisher:Stephen L. Herman

Chapter19: Capacitors

Section: Chapter Questions

Problem 2PA: You are an electrician working in an industrial plant. You discover that the problem with a certain...

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You are an electrician working in an industrial plant. You discover that the problem with a certain machine is a defective capacitor. The capacitor is connected to a 240-volt AC circuit. The information on the capacitor reveals that it has a capacitance value of 10 mF and a voltage rating of 240 VAC. The only 10-mF AC capacitor in the storeroom is marked with a voltage rating of 350 WVDC. Can this capacitor be used to replace the defective capacitor? Explain your answer.
An AC circuit contains a 24 resistor, a 15.9-mH inductor, and a 13.3F capacitor connected in parallel. The circuit is connected to a 240-V, 400-Hz power supply. Find the following values. XL=XC=IR=AIL=AIC=AP=WVARsL=VARsC=IT=AVA=PF=%=
Three capacitors having capacitance values of 20F,40F, and 50F are connected in parallel to a 60 - Hz power line. An ammeter indicates a circuit current of 8.6 amperes. How much current is flowing through the 40F capacitor?
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A 15-F AC capacitor is connected in series with a 50 resistor. The capacitor has a voltage rating of 600 WVDC. The capacitor and resistor are connected to a 480-V, 60-Hz circuit. Is the voltage rating of the capacitor sufficient for this connection?
Basic Electrical Engineering: Inductance and Capacitance You find that a 25-µF capacitor connected to a 480 V AC is defective. The storeroom has no capacitors with a 480 V AC rating. However, you find two capacitors rated at 50 µF and 370 V AC. Can these capacitors be connected in such a manner that they can replace the defective capacitor? If yes, explain how they are connected and why the capacitors will not be damaged by the lower voltage rating. If no, explain why they cannot be used without damage to the capacitor.
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A circuit consisting of a resistor in series with a capacitor takes 100 watts at a power factor of 0.5 form a 100 V, 60 Hz supply. Find the current, resistance, the impedance and the capacitance.
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