17. A single-phase, 120 V, 60 Hz, four-pole, split-phase induction motor gave the following blocked rotor test data: VIP 32 4 80 Auxiliary winding 40 4 128 Main winding a) Determine the standstill impedances of the main and anuxiliary windings. b) Determine the values of the resistances to be added in series with the auxiliary winding to obtain maximum starting torque.
17. A single-phase, 120 V, 60 Hz, four-pole, split-phase induction motor gave the following blocked rotor test data: VIP 32 4 80 Auxiliary winding 40 4 128 Main winding a) Determine the standstill impedances of the main and anuxiliary windings. b) Determine the values of the resistances to be added in series with the auxiliary winding to obtain maximum starting torque.
Introductory Circuit Analysis (13th Edition)
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Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
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![17. A single-phase, 120 V, 60 Hz, four-pole, split-phase induction motor gave the following blocked
rotor test data:
V IP
32 4 80
Auxiliary winding 40 4 128
Main winding
a) Determine the standstill impedances of the main and auxiliary windings.
b) Determine the values of the resistances to be added in series with the anuxiliary winding to obtain
maximum starting torque.
c) Compare the starting torques and starting currents with and without the added resistance in the
axiliary winding circuit if the motor is connected to a 120 V, 60 Hz supply.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F3657ab80-abc7-4b10-9cc5-ee0f3c818dba%2Ff107596a-6d4b-4d85-a812-e3b6540a6ad3%2Fbirsacq_processed.jpeg&w=3840&q=75)
Transcribed Image Text:17. A single-phase, 120 V, 60 Hz, four-pole, split-phase induction motor gave the following blocked
rotor test data:
V IP
32 4 80
Auxiliary winding 40 4 128
Main winding
a) Determine the standstill impedances of the main and auxiliary windings.
b) Determine the values of the resistances to be added in series with the anuxiliary winding to obtain
maximum starting torque.
c) Compare the starting torques and starting currents with and without the added resistance in the
axiliary winding circuit if the motor is connected to a 120 V, 60 Hz supply.
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