The peak power of a PMDC motor is 1 W at 12 V. The stall torque at 12 V is 0.2 N-m.
What is the torque constant for this motor?
motor has a stall torque of 0.1 N-m and draws 2 A at 12 V at stall. What is its no-lood speea in RPM when 12 V is applied? lEnter just the nuumeric yalue. Do not include the unit)
For a PMDC motor powered by a 12 V DC source, the no-load speed and stall torque are 3800 RPM and 30 mNm, respectively. If the motor is running at 2500 RPM, find a) Shaft torque (Tshaft), b) Rotor current (Im), c) Back emf (Eb), d) Electrical power consumed, e) Shaft power, and f) Power loss in rotor coil.
A 12-pole, brushless, DC motor has a no-load speed of 5000rpm and a stall torque of 50 in-oz when operating at rated voltage of 60V. Testing shows that no-load speed and stall torque vary linearly with applied voltage. Also, with a constant applied voltage the speed decreases linearly as delivered torque increases. Calculate the following: Torque that the motor delivers at 2000 rpm when operated at rated voltage. T a) b) Fundamental frequency of the applied voltage waveform at this...
A motor generates 600 W of power. The torque necessary is 25.0 N m. Find the angular velocity.
A 227-V three-phase motor runs 1,650 rpm at a load requiring 11 N-m torque. The motor draws 9.5 A of current and the power factor is 0.94, lagging. Determine the power loss (in W) in the motor. (Enter your answer as a number without the units.)
A 208-V three-phase motor runs 1,770 rpm at a load requiring 5 N-m torque. The motor draws 6.5 A of current and the power factor is 0.88, lagging. Determine the power loss (in W) in the motor. (Enter your answer as a number without the units.)
If a manufacturer's specifications for a PM DC motor are as follows, what are the motor's no-load speed, stall current, starting torque, and maximum power for an applied voltage of 10 V? ■ Torque constant 0.12 Nm/A Electrical constant 12 V/1000 RPM Armature resistance-: 1.5 Ω
Question 3: DC motors can be simplistically modeled as shown in Figure 5 MoTor back emf Vi: +1 Resistor Ra Ia Figure 5: Simplified model of DC Motor (a) Write the three characteristic equations that determine the behavior of the DC motor. Denote torque constant and speed constant as Ka, K, respectively. (b) Motor parameters are the quantities that define the behavior of the motor. List the motor parameters from the described model. What are their units? (c) For given...
A DC motor, when supplied from a 211 V power supply is observed to rotate under no-load conditions at 1,700 rpm. A stall test shows that the winding resistance is 1.65 ? The motor is connected to a load whose torque-speed characteristic is given by ? = ?×0.178. Find the speed (in rpm) at which the motor will drive this load. rpm (Give your answer in rpm to 3 s.f.)
A motor provides the torque necessary to keep a gear turning at constant angular velocity, overcoming friction between the gear and the axle. The gear can be modeled as a disk, with mass 2 kg, and radius rg = 0.2 m. The force of friction can be modeled as a single force, acting at the outer edge of the axle, at position ra = 0.02 meters, with force of fk = 10 N. a) What is the magnitude of the...