1. A 240 V, 50 Hz, single-phasc capacitor start a.c. motor is loaded such that the slip is 6 %. The motor constants referred to the stator are : Stator resistance 2-2 2; Rotor resistance 3-8 2 3.02; Rotor reactance = 86 N ; Iron and friction loss = 50 W Draw the equivalent circuit and from it find the output power and efficiency at the given loading. Stator reactance 2.12 Magnetising reactance = [1090 W; 74-6 %]

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1. A 240 V, 50 Hz, single-phase capacitor start a.c. motor is loaded such that the slip is 6 %. The motor
constants referred to the stator are :
Stator resistance 2-2 2; Rotor resistance 3-8 2
3.02; Rotor reactance
86 2; Iron and friction loss = 50 W
Draw the equivalent circuit and from it find the output power and efficiency at the given loading.
Stator reactance
2.12
Magnetising reactance =
[1090 W; 74-6 %]
Transcribed Image Text:1. A 240 V, 50 Hz, single-phase capacitor start a.c. motor is loaded such that the slip is 6 %. The motor constants referred to the stator are : Stator resistance 2-2 2; Rotor resistance 3-8 2 3.02; Rotor reactance 86 2; Iron and friction loss = 50 W Draw the equivalent circuit and from it find the output power and efficiency at the given loading. Stator reactance 2.12 Magnetising reactance = [1090 W; 74-6 %]
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