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Please have work reflect given solutions to receive thumbs up. Thanks! a. Speed at 50 Hz=948.25 rpm b. Tmax at 60Hz = 17
Posted: Sun May 15, 2022 2:29 pm
by answerhappygod
- Please Have Work Reflect Given Solutions To Receive Thumbs Up Thanks A Speed At 50 Hz 948 25 Rpm B Tmax At 60hz 17 1 (148.09 KiB) Viewed 63 times
Please have work reflect given solutions to receive thumbs up. Thanks! a. Speed at 50 Hz=948.25 rpm b. Tmax at 60Hz = 176.1 Nm, Tmax at 50Hz = 174.76 Nm A three-phase, 60 Hz, six-pole, Y-connected, 480-V induction motor has the following parameters: R1 = 0.21, R' = 0.11, Xeq = 502 The load of the motor is a drilling machine. At 1150 rpm, the load torque is 150Nm. The motor is drivent a constant v/f technique. When the frequency of the supply voltage is reduced to 50 Hz, calculate the following: a. Motor speed b. Maximum torque at 60 Hz and 50 Hz c. Motor current at 50 Hz Hint: For a drilling-machine load (an inverse-speed-characteristics load) T1/T2 = n2/n1 = (1-82)/(1-1)