Manufacturing a motor for electric scooter What is the level of detail/feature size of manufacturing a motor for electric scooter?
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Manufacturing a motor for electric scooter
What is the level of detail/feature size of manufacturing a motor for electric scooter?
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- At 6V a servo has a stall torque of 2.5 kg-cm. a) What would the stall torque be at 4V? b) What is the allowable stall torque so the servo will not exceed 30% of the stall torque?Question 4 A 55 hp, 440 V, 400 rpm DC shunt motor draws 107 A when operating at rated conditions. The motor has an armature-circuit resistance of 100 m2 and a total field-circuit resistance of 55 2. Draw a schematic of the motor in the space below showing all known quantities (resistances, currents, voltages and load). Show only symbols for unknowns. Determine the following for rated operation What is the motor armature current? (a) 99 A (b) 102 A (c) 107 A (d) 110 A (e) 115 A (i) What is the CEMF developed in the armature? (a) 449.9 V (b) 440.0 V (c) 430.1 V (d) 429.3 V (e) 428.5 V (i) What is the total windings (copper) losses in the motor? (a) 4842.5 W (b) 4500.1 W (c) 3520 0 W (d) 1145 W (e) 980.1 WElectric drive motors are usually running at high speed commonly at 1,800 rpm, 3,600 rpm or more. When you wish to use this electric motors to drive an equipment requiring a 40 rpm speed, which among the mechanical elements (gears, sprockets, pulleys) are ideal to use? Explain
- Torque calculation, DC motor.A 130 kW, 470 V separately excited de motor has the following rated values (nameplate): 1940 rpm (full load), 300 A (full load), 0.0935 N armature resistance. The motor efficiency is 90 %. Armature and field windings have separate power supplies. Assume the magnetic circuit is not saturated and neglect armature reaction. Ignore all mechanical losses in the calculation of torque.Explain briefly the AC, DC and Universal motors.
- Manufacturing a motor for electric scooter. What is the tolerance in manufacturing a motor for electric scooter?(The precision required in motor manufacturing)diagram, given. In a certain motor the armature resistance is 0.1 ohm. When connected to 110 volts, the armature current is 20 amp and its speed is 1,200 rpm. What is its speed when the armature takes 50 amp with the field increased 10 per cent?Motors have many uses. Describe a motor you have experience with. What is it being used for, what power source it uses, and possibly it’s configuration. Explain why you picked this motor and if you have/need to perform(ed) any maintenance on it.
- b) With detailed explanation and examples differentiate betweengenerators and Motors thereby determining their specific principle ofoperation.1. In the lab you will be measuring the quantities: source voltage, field current, armature current, speed, and load torque. Suppose these measurements are 120V, 0.25A, 2.6A, 1675rpm, and 1 Nm respectively, Suppose the connection is switched to series mode while maintaining the same voltage and load torque = 0.028 Nm. Assuming stator flux to be linear function of field current, determine the new speed, armature/filed current, back emf, field loss, armature loss, power efficiency, and starting torque.4. A shunt motor designed to operate at 115 V, has an armature resistance is 0.12 ohms and the motor is taking 60 A in armature current at full load. Determine the value of the external resistance to be inserted in the armature circuit so that the armature current shall not exceed twice its full load value at starting. A. 0.838 ohm C. 0.667 ohm B. 0.919 ohm D. 0.733 ohm