The synchronous motor is operating at 90 of its output, Electrical Engineering

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The synchronous motor is operating at 90 of its output

Two induction motors and a synchronous motor are fed from thesame 3-phase, 480V bus. The following data pertains to the 3motors:
• Induction motor #1: 480V, 120hp output, PF= 0.78 lag,and efficiency = 82%
• Induction motor #2: 480V, 100hp output, PF= 0.80 lag,and efficiency = 80%
• synchronous motor: 480V, 260hp output, initial PF= 1.0,efficiency = 92%
The synchronous motor is operating at 90% of its output rating.What must the power factor of the synchronous motor be adjusted toso that the overall power factor of the system is 0.97 lagging?

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Electrical Engineering: The synchronous motor is operating at 90 of its output

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Electrical Engineering: The synchronous motor is operating at 90 of its output

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Electrical Engineering: The synchronous motor is operating at 90 of its output

Reference No:- TGS0623063

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