A 250 V d.c. shunt motor has a shunt field resistance of 200 S2 ohm and an armature resistance of 0.3 ohm For a given load, motor runs at 1500 r.p.m. drawing a current of 22 A from the supply. If a resistance of 150 ohm is added in series with the field winding, find the new armature current and the speed. Assume load torque constant and magnetisation curve to be linear.

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

A: Here  DC shunt motor is given and we have to find developed torque  and useful torque

Q: d.c. series motor has a wave wound armature with 180 conductors. The armature resistance and the…

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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: The armature of a 14 pole DC shunt generator has 60 slots and is lap wound with 13 conductors per…

A: We will find out the armature current then generated emf and then from emf we will find out the flux…

Q: A 240 V shunt motor has an armature current of 15 A when running at 800 rpm against full-load…

A: In this question we need to find a What resistance must be inserted in series with the armature to…

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

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Q: A 24 KW, 140 V, Duplex LAP-wound DC machine has been set to induce rated voltage at a speed of 2200…

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Q: A DC generator has terminal voltage of 250 V and an induced voltage of 262 V when the generator is…

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Q: An 4 pole, wave-wound DC motor has a 200 V supply.  The armature has 1000 conductors and a…

A: An 4 pole, wave-wound DC motor has a 200 V supply. Armature conductor Z=1000 Armuatrur resistance…

Q: The armature of a 8 pole DC motor carries 314 conductors which are lap connected . For an armature…

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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: A 250 V, 8-poles lap wound D.C. shunt motor has an armatre resistance of 0.5 N and shunt field…

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Q: An 8 pole DC shunt generator with 900 wave-connected armature conductors supplies 10ohm  at 500 V…

A: To find the answers, we can use the following formulas and calculations:1.1 The flux per pole:The…

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: 300 V D.C. shunt motor runs at 300 r.p.m. ,takes 10 A and induces the emf of 50V. The armature and…

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Q: A 50 hp, 250 V, 1300 rpm dc shunt motor shown in figure below resistance of 0.05 Q. Its field…

A: P=50 HPVT=250 VNoload speed N=1300 rpmRa=0.05ΩRf+Radj=20ΩTurns per pole=950No load speed with…

Q: An 8 pole, lap-wound DC motor has a 250 V supply. The armature has 600 conductors and a resistance…

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Q: A 4 pole, (01*10)V, DC shunt motor operates on a load current (1*10)A, having wave connected…

A: Given: V= 10 IL= 10 A Z=200 flux per pole = 25 mwb Rsh=1 ohm Ra= 0.15 ohm

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

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Q: d.c. shunt motor

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Q: useful flux

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Q: A 4-pole, 250-V, d.c. shunt motor has a lap-connected armature with 960 conductors. The flux per…

A: Given:

Q: A 45-hp dc compound motor takes 75 A at supply mains. It operates at a speed of 500 rpm. The flux…

A:

Q: The no-load speed of a 240 V Dc shunt motor is 800 r/min and the armature current is 2A. Determine…

A: Given,No load armature current=Iao=2ANo load back emf=Ebo=240-Iao×RaEbo=240-2×0.4=239.2Vand, ϕo∝ no…

Q: A 250 V, 4 pole wave wound shunt motor has 650 conductors on its armature. It has armature and shunt…

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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: A lap-wound, 6-pole dc motor has 180 conductors distributed on the armature’ssurface. If the…

A: 1. Torque Developed by the MachineThe torque T in a DC motor can be calculated using the…

Q: The armature of a 10 pole DC shunt generator has 42 slots and is wave wound with 12 conductors per…

A: We need to Find armature current and generated voltage. Solution is attached below

Q: Suppose that we are designing a 1200-rpm dc motor to run from a 240-V source. We have determined…

A: Given Nm=1200 rpm Calculating linear velocity of the conductor Nm=ωm602πωm=Nm602πωm=12002π60ωm=40π

Q: In a DC shunt generator, the induced EMF is 230 V, the armature resistance is 0.1ohm and the…

A: Given: In dc shunt generator E=230 VRa=0.1 ΩIa=200 A

Q: A 4-pole series motor has 800 lap connected armature conductors. At a certain load, the flux per…

A: Given DC series motor with Number of poles P=4Armature conductors Z=800Flux per pole ϕ=60 mWbTotal…

Motor Load, Torque, and Power Quality Requirement

An electric motor is a gadget that changes electrical energy into mechanical energy over to follow up on a mechanical burden. The weight set on the motor because of this mechanical movement is known as motor load. Appropriately matching the motor burden to the engine is vital to forestall harm to the engine or wasteful and unnecessary expensive activity. Engines perform such undertakings as moving a thing starting with one spot then onto the next, cutting it, changing its shape, etc. The motors might be evaluated as far as a few variables including power yield, voltage, current, and temperature. Harm to an engine might happen when it is worked under over the top engine load contrasted with its appraised limit.