a 220v dc shunt motor takes 5a and 40a at no load and full load respectively it has an armature resistance of 0.2 ohm and field resistance of 110 ohm respectively. iron,friction and windages losses are negligible.then using among parameters find following. an emf at no load of dc motor

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Q: 440-V shunt motor has armature resistance of 0.02 ohm and field resistance of 500 ohms. Determine…

A: In this question we will find find back emf....

Q: Fill in the following blanks: 1. In order to have sparkless commutation, the brushes should be…

A: 1.In order to have  sparkless commutation, the brushes should be placed along the MNA axis 2.D.C…

Q: A 10 kW, 250 V Shunt motor has an armature resistance of 0.5 ohm and a field resistance of 200 ohm.…

A: To calculate a)full load speed, b) torque developed at full load speed 1158 rpm

Q: A shunt motor is rotating at 1500 rpm and is powered by a 120V voltage source. The current line…

A: In this question we need to find the following a) the armature current, b) the back emf (E), c) the…

Q: Q1/Prove that the power developed by a three-phase induction motor is maximum when the equivalent…

A: The Thevenin equivalent circuit of a 3 phase induction motor can be represented as, now,…

Q: A 250 V dc shunt motor has an armature resistance of 0.2 Ω and a field resistance of 100 Ω. When the…

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Q: of.fe.ST 1. Laminations of core are generally made of.. 2. In case of the induction motors the…

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Q: A compound DC motor with lap-wound armature is connected to a 132V source. Shunt field resistance is…

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Q: . series motor when loaded to 50 A runs at 1500 r.p.m. on a 220 V supply. The motor resistance is…

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Q: A250 V, dc shunt motor has an armature resistance of 0.5 chmand a field resistance df 250 chm When…

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Q: A four-pole 60-Hz 240-V-rms induction motor operates at 1750 rpm and produces 2 hp of output power.…

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Q: .A 10 kW, 250 V Shunt motor has an armature resistance of 0.5 ohm and a field resistance of 200 ohm.…

A:

Q: Assume that a separately excited shunt de machine has a rated terminal voltage of 230 V and a rated…

A: We got an a separately excited shunt dc machine with, Terminal Voltage (Vt) = 230 V Armature current…

Q: ...... 4. The eddy current loss of ac motor is 100W at SOH2. Its loss at 100HZ will be S B) A…

A: As per Bartleby guidelines we are allowed to solve only one question, please ask the rest again.

Q: A 250V series motor runs at 500 rpm at rated load current of 75 A. The armature circuit has a…

A: It is given that: V=250 VN1=500 rpmIL1=Ia1=75 ARa+Rse=0.2 Ωϕ α Ia

Q: A shunt motor is rotating at 1500 rpm and is powered by a 120V voltage source. The current line…

A: As per the guidelines of Bartleby we suppose to answer first three subpart only for solution of…

Q: 1.why the slip of induction motor is never zero, 2.what happens if the slip of induction motor is…

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Q: A 3-Phase 50 kW, 4-pole, 50 Hz induction motor has a winding (ac) designed for delta connection. The…

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Q: which is the best method for reducing armature reaction O a. Using High reluctance pole time O b.…

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Q: Sketch the torque versus speed characteristic for a series-connected dc motor.

A: The circuit diagram of the DC series motor can be drawn as  Thus for constant power motor : Ns α 1Γ…

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Q: Q5// A: The below curve represents Ta/la characteristic of a dc series motor. Briefly discuss this…

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Q: 1.In order to have sparklesscommutation, the brushes should be placed along................. 2.D.C.…

A: 1. In order to have a sparkles commutation  , the brushes should be placed along MNA(magnetic…

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A: Given- Voltage Vt=240 V. Line current I=15 A. Armature resistance Ra=0.5 Ω. Shunt resistance Rsh=80…

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.