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A 230 V, 20 hp, 60Hz, six-pole, induction motor is driving a constant torque load at rated frequency, rated voltage and
Posted: Fri Jan 21, 2022 8:40 am
by answerhappygod
- A 230 V 20 Hp 60hz Six Pole Induction Motor Is Driving A Constant Torque Load At Rated Frequency Rated Voltage And 1 (36.75 KiB) Viewed 37 times
A 230 V, 20 hp, 60Hz, six-pole, induction motor is driving a constant torque load at rated frequency, rated voltage and rated power has a speed of 1175 rpm and an efficiency of 92.1%. Determine: (i) The new operating speed if a system disturbance causes a 10% drop in voltage and 6% drop in frequency (15 marks) (ii) The new shaft horsepower, assuming all loses (windage, friction and stray power) are constant (5 marks)