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# Solution: Determine the value of the starting capacitance

#### Problem Statement: Electrical Engineering Professional Subjects

Electric Circuits: AC Circuits Problem Solving

A 1-hp, 220 V, 60 Hz capacitor-start motor has main and auxiliary winding impedance at starting of 3.5 + j2.5 ohms and 8.6 + j2.5 ohms, respectively. Determine the value of the starting capacitance that will place the main and auxiliary winding currents 90ยฐ apart at starting.

A.ย  186.75 ฮผF

B.ย  174.35 ฮผF

C.ย  182.43 ฮผF

D.ย  170.67 ฮผF

The value of the starting capacitance of the winding is equal to 182.43 ฮผF.

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