Q6/. The armature torque of a dc motor is a function of its a. Field flux alone • b. Armature current along • c. Speed alone d. Both field flux and armature current

Q: A 220 V, 15 kW, 850 r.p.m. shunt motor draws 72.2 A when operating at rated condition. The…

A: I have written this solution as handwritten solution. Hope you find the perfect solution.

Q: A 500 V D.C. shunt motor having an armature resistance of 1 ohm draws an armature current of 120 A…

A:

Q: A 250 V shunt motor, having an armature resistance of 0.2 ohm draws from the mains a current of 50…

A: Given V=250 V armature resistance =Ra =0.2 Ω at half full load, armature current =Ia1 =50 A Initial…

Q: a dc shunt motor runs at 900 r.p.m from a 460 V supply when taking an armature current of 25 A.…

A: Take the ratio of back emfs to find the speed at terminal voltage of 230 volts. Back emf is directly…

Q: 3. A 4 pole, 250 dc shunt motor has a lap connected armature with 960 conductors. The flux per pole…

A: The solution can be achieved as follows.

Q: A DC motor has stall torque of 2 N-m (Newton*meters) and a no-load speed of 2000 RPM. With a load of…

A: Given thatN1=2000 rpmτ1=2 N.mτ2=0.5 N.m Part (a)  Assume that given motor is series motor . For…

Q: The armature resistance of a shunt motor is 0.09 2. When connected to a 230-V supply a counter-emf…

A: The  solution is given below

Q: In a spinning industry, a 215 V, 4 pole shunt motor runs at a speed of 1300 rpm gives an output of 8…

A: In this question we will find dc shunt motor torque , flux etc...

Q: Consider a shunt DC motor with an armature resistance RA=0.2 ohm and terminal voltage VT = 160 V.…

A: Given Data: VT = 160 V Ra = 0.2 ohm Ia = 60 A N = 1517 rpm Ploss = 848 Watt

DC Series Motors

A DC motor is a type of electric motor which converts electric energy into mechanical energy. The forces that are produced by the magnetic field are what those common types of motors rely upon. Either electro-mechanical or electronic, all types of DC motors have some internal mechanism to change the current direction in part of the DC motors. As the DC motors could be powered from existing DC lighting power distribution systems, these motors were the first form of motors widely used. By changing the strength of the current in its field winding or by using a variable supply voltage, the speed of the DC motors can be controlled over a wide range.