Questions: 1 - why does the speed fall slightly when the d.c. shunt motor is loaded? 2- What is the effect of armature reaction in on the speed of the motor? 3- Discuss the behavior of the efficiency output power curve? 4 - Enumerate different losses which take place in a loaded shunt motor ؟

Q: Field winding resistance of DC shunt motor compared to its armature resistance is Equal Samller…

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Q: Armature resistance of a 230V shunt motor is 0.6 0 and no load current is 2.5A. When the rotor is…

A: Given data, Terminal voltage V = 230 V. Armature resistance Ra=0.6 Ω. Armature current ia=60 A.

Q: A 230-V shunt motor draws 5 A at a no-load speed of 2400 rpm. The shunt- field resistance is 115 0,…

A: In the DC shunt motor,  230V,  At no load draw current 5A,  No load speed No= 2400 rpm Field…

Q: load, ascertain whether it is running at lagging power factor or a leading power factor without the…

A: An AC motor is an electrical machine which takes AC electrical input energy and produces mechanical…

Q: 2. A 100hp, 500V, 4-pole, shunt motor has a wave connected armature winding with 492 conductors. The…

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Q: What type of speed control method provides above the normal speed of the DC series motor? O a.…

A: Find method for above speed

Q: Q5/   A 4 pole, 225V , DC shunt motor develops an output power of 10 kW . If Ra = 0.06 ohms , and…

A: Q5/       A 4 pole, 225V , DC shunt motor develops an output power of 10 kW . If Ra = 0.06 ohms ,…

Q: On the nameplate of a serial excitation DC motor, 11 kW, 240 V, 50 A, 1350 rpm values ​​are written.…

A: First we will obtain the various parameters at rated conditions, then we will obtain other…

Q: What are the advantages of shunt de motor?

A: A DC shunt motor is the motor which is self excited in nature and the field connection is in…

Q: 1. The synchronous motor is not inherently self-st 2. As the load is applied to a synchronous motor,…

A: Synchronous motor is a motor that runs at a constant speed. the rotor and stator are in synchronism.

Q: In D.C series motor, is the relation between load speed proportional and at which load position the…

A: No, in DC series motor, the relation between the speed and load(or can say torque) is not…

Q: b) Draw the speed control block diagram of the DC motor, which can be controlled with armature…

A: Ac speed control motors- Constructio motor- the construction of the single phase and three-phase…

Q: a) Why do we use asynchronous word for asynchronous (induction) motors?

A: As per the honour code I will only attempt Q1. Kindly repost the other questions again. THANK YOU!!…

Q: "Explain why speed of a DC motor get affected on load, if its series field winding is connected…

A: DC motor emf equation is given as, E=NPϕZ60AN=EA60PϕZk=PZ60ASo, N=EKϕ The torque equation of the DC…

Q: Select which of the following winding of Synchronous motor requires AC power supply. O a.…

A: Choose the correct option The winding of synchronous motor require ac power supply ?

Q: A 230 volts motor has an armature circuit resistance of 0.6 ohm. If the full load armature current…

A: We have an motor with, rated Voltage for motor (V) = 230 V Armature Resistance (Ra) = 0.6 Ω Full…

Q: For the armature controlled DC motor shown, find the transfer function. Assume the following…

A: Solution

Q: Q11-250 V d.c. Shunt motor has an armature current of 20A when running at 1000 r.p.m at full load.…

A: In this question dc shunt motor is given....We have to find out series resistance added in armature…

Q: 1.) A certain 5.5 kW, 125-V DC long shunt compound generator was operated as a shunt generator motor…

A: Given: Armature resistance, Ra=0.2 ΩSeries field resistance, Rse=.25 ΩShunt field resistance, Rsh=25…

Q: Calculate the speed when loaded

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Q: Having salient poles on stator and rotor a switched reluctance motor is called.. machine O Smooth…

A: In this question , we will write having silent poles on stator and rotor, a switched reluctance…

Q: the Pield control used in Series DC motor ?

A: In a DC series motor, the field winding and the armature windings are in series. It has low field…

Q: üla ir Cll A Classroor docs.google.com A 250 V, DC shunt motor has shunt field resistance of 250 ohm…

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Q: 1. Write the comparison between DC shunt motor and DC Shunt generator.

A: ll answer the first question since the exact one is not specified please submit a new question one…

Q: The field winding resistance of DC shunt motor compared to its armature resistance is     Very high…

A: In this answer we will try to find about different windings in the DC machine as shown below and…

Q: ONE SENTENCE ONLY. how do we maximize the value of the armature current in a shunt dc motor in the…

A: Circuit for DC shunt motor, From emf equation of DC shunt motor, the armature current equation will…

Q: Explain the different losses involved with DC shunt motors

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Q: Explain the speed control of DC shunt motor

A: According to the question, Explain the speed control of DC shunt motor.

Q: 2. A SEDC motor has an armature resistance of 1.15 ohm and an armature voltage constant kv=0.78…

A: Given Armature resistance Ra =1.15 ohm Armature voltage constant KV =0.78 V/rad/s Rms voltage source…

Q: (100 V DC shunt motor has a starting current value for the armature circuit as last 50 A while the…

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Q: Follow the instructions given in the question and then sketch the speed current characteristic for a…

A: We have to sketch the speed current characteristic for a common DC motor and describe the motor…

Q: The armature resistance of 250 V DC shunt motor is 0.5 ohm. Its armature current is 20 A when…

A: Given data, Vdc=250 VRa=0.5 ΩIa1=20 AN1=1200 rpm

Q: A dc motor will runaway if it runs at over-rated load with armature reaction: Select one: a. none of…

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Q: What is a series motor characteristic? For what application it is most suited?

A: we need to explain series motor and its characteristics and its application.

Q: A 230 V DC shunt motor has a full-load efficiency of 89.9%. Rated (full) load is 40 hp. Motor…

A: As per the guidelines of the bar

Q: A 20 h.p., 250 V shunt motor has an armature circuit resistance (including brushes nd interpoles) of…

A: Back emf = terminal voltage-voltage drop in armature resistance. Take the ratio of back emfs to find…

Speed control of motor

Speed control by DC motor-speed controller is required to realize variable speed drive. Whenever a motor drives a particular load, it is called drive, and variable speed drive refers to a load requiring variable speed. All this is obtained by a DC motor speed controller.