Question

Assume that a motor has known friction and windage losses described by the equation $T_{\mathrm{FW}}=b \omega$. Sketch the $T-\omega$ characteristic of the motor if the load torque $T_L$ is constant, and the $T_L-\omega$ characteristic if the motor torque is constant. Assume that $T_{\mathrm{FW}}$ at full speed is equal to 30 percent of the load torque.

Name: Problem 19, Chapter 15: Principles and Applications of Electrical Engineering
Uploaded: 2021-11-20T12:43:24-08:00
Duration: 2 min 49 s
Channel: Narayan Hari
Description: Assume that a motor has known friction and windage losses described by the equation TFW=b ω. Sketch the T-ωcharacteristic of the motor if the load torque TL is constant, and the TL-ωcharacteristic if the motor torque is constant. Assume that TFW at full speed is equal to 30 percent of the load torque.

   Assume that a motor has known friction and windage losses described by the equation $T_{\mathrm{FW}}=b \omega$. Sketch the $T-\omega$ characteristic of the motor if the load torque $T_L$ is constant, and the $T_L-\omega$ characteristic if the motor torque is constant. Assume that $T_{\mathrm{FW}}$ at full speed is equal to 30 percent of the load torque.

Principles and Applications of Electrical Engineering

Giorgio Rizzoni,… 7th Edition

Chapter 15, Problem 19

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Assume that a motor has known friction and windage losses described by the equation $T_{\mathrm{FW}}=b \omega$. Sketch the $T-\omega$ characteristic of the motor if the load torque $T_L$ is constant, and the $T_L-\omega$ characteristic if the motor torque is constant. Assume that $T_{\mathrm{FW}}$ at full speed is equal to 30 percent of the load torque.