A 10kW, 200V, DC Shunt motor has 1-ohm armature resistance. Running at 300 rpm, its back emf (Eb) is equal to zero. Select one: O True False
Q: Of a free excited DC motor, Excitation winding internal resistance Rf = 50 N, Supply voltage V = 100…
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Q: 3. Explain how the pulsating mmf of a single-phase induction motor may be considered equivalent to…
A: A single phase induction motor is made up of a single phase winding on the stator and a cage winding…
Q: A 21 kW, 378 V DC long-shunt motor has an armature, series field and shunt field resistances of 0.02…
A: Armature induced voltage = terminal voltage + voltage drop in armature and series field resistance.
Q: A 220-V dc shunt motor runs at 500 rpm, when the armature current is 50 A. Calculate the speed if…
A: Given, Problem regarding to shunt motor. Please find the below attachments for the clear…
Q: 2. A 50-kW, 440-V, 50-Hz, six-pole induction motor has a slip of 6 percent when operating at…
A: Dear,as per company guidelines we can answer only 3 sub-parts at a time, kindly post other sub-parts…
Q: A certain shunt-connected DC motor has RA =1 Q, a total field resistance Rp = 200 Q, and VT = 200 V.…
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Q: (b) A 2 pole 220 v, 100A, and 850 rpm separately excited DC motor has an armature resistance of 0.15…
A: Given: A 2 pole 220 V, 100A, and 850 rpm separately excited DC motor has an armature resistance of…
Q: ourse A series DC motor has a scries-field winding of 25 turns per pole. Its armature resistance in…
A: In this question we need to find a Induced torque when moter operate at given condition.
Q: A separately excited DC motor presents the following plate data. • armature voltage: V • amature…
A: We need to calculate different parameters for machine .
Q: A 180-V, DC motor is connected as a cumulatively-compounded DC motor. Its characteristics are given…
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Q: Q.8 The gross power absorbed by the forward and backward field of a 230V, 4-pole, 50 Hz,…
A: Given: V=230V P=4 f=50Hz Pf=180W Pb=30W N=1425 rpm No load friction loss=50W
Q: A 200-V, 100 A armature full-load line current, 1500 RPM, shunt DC motor is considered in this…
A: The minimum speed will occur, when Radj=50ΩThe maximum speed will occur, when Radj=450ΩFor Minimum…
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 200-V, 100 A armature full-load line current, 1500 RPM, shunt DC motor is considered in this…
A: The range of speed for the following data is calculated as shown below
Q: Q5 : Induction Motors A three-phase, 230 V, 30 hp, 60 Hz, six-pole induction motor is operating with…
A: As per the guidelines of Bartley we supposed to answer first three subpart only
Q: Problem 4. A two-pole induction motor operates with the following parameters: slip = 5%, total…
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Q: electrical machines A 50-kW, 460-V, 50 Hz, two-pole induction motor has a slip of 5% when operating…
A: Note: As per the guide lines of the bartleby we are supposed to solve 3 questions, when they are…
Q: A given DC series motor is operated at full load when connected to a 240 V supply and runs at a…
A: DC series motor At full load:- Input Voltage (Vin) 240V; Full load speed (NFL)=600rpm;…
Q: Of a free excited DC motor, Excitation winding internal resistance R = 50 N, Supply voltage Vr = 100…
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Q: A 220-V-rms (line-to-line), 60-Hz, three-phase induction motor operates at 3500 rpm while delivering…
A: From problem description we have: Vin = 220 V rms Iin = 8 A rms Nfull load = 3500 rpm f = 60Hz Pout…
Q: A 50-hp, 250-V, 1200-rpm DC shunt motor has an armature resistance (including the brushes,…
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Q: A 220 V d.c series motor has armature and field resistances of 0.15 2 and 0.10 respectively. It…
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Q: (c) A 50 HP, 250 V, 1200 r/min, DC shunt motor has an armature resistance of 0.06 Q. Its field…
A: A DC shunt motor The given Armature resistance Ra = 0.06 ohm Field winding resistance Rf +Radj=…
Q: A separately excited DC motor presents the following plate data: • armature voltage: V = 220 V %3D…
A: Note: We are authorized to answer three subparts at a time, since you have not mentioned which part…
Q: A Switched reluctance motor having o stator poles and 4 rotor poles. aligned and unaligned…
A: Solution:- Stator poles = 6 Rotor poles = 4 = Nr Aligned Inductances = 10.7mH Unaligned inductances…
Q: A 3-phase, Y-connected, 40 HP, 415 V, 50 Hz, 4-pole wound rotor induction motor has a stator…
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Q: A 111 kW, 320 V, 50 Hz, 6 poles, 974 rpm, Y-connected squirrel cage induction motor has following…
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Q: A 200-V, 100A armature full-load line current, 1500 RPM, shunt DC motor is considered in this…
A: The range of speed for the following data is determined as shown below
Q: Q/ A separately excited DC motor running at speed = 1100 rpm and has %3D the following…
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Q: Consider a separately-excited DC motor with an armature resistance RA=0.25 2 and terminal voltage VT…
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Q: A 60-Hz wound-rotor induction motor operates at 40 percent slip with added rotor resistance to…
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Q: In a 6-pole, 50 Hz, single-phase induction motor, the gross power absorbed by the forward and…
A: In this question, We need to determine the shaft torque? Shaft torque = power/w
Q: A small permanent magnet DC motor has an armature resistance of 3.5ohm and armature voltage of…
A: Given data: Ra=3.5 ΩV=7 V
Q: A 250V, Y-connected synchronous motor is drawing 70 A at a unity power factor from a 250-V power…
A: We are authorized to answer three subparts at a time, since you have not mentioned which part you…
Q: A 50HZ, 440V, 6pole, delta connected three phase induction motor, running at full load develops a…
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Q: A 240-V, 100 A armature full-load line current, 1500 RPM, cumulatively-compounded DC motor is…
A: The minimum speed will occur when Radj=50Ω The maximum speed will occur when Radj=450ΩField…
Q: A separately excited DC motor presents the following plate data: • armature voltage: V = 220 V UB •…
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Q: A three - phase, 460V, 60HZ, 4 – pole Y- connected induction motor has the following equivalent…
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Q: (c) A 50 HP, 250 V, 1200 r/min, DC shunt motor has an armature resistance of 0.06 2. Its field…
A: In the question A DC shunt motor Armature resistance Ra = 0.06 ohm Field winding resistance Rf…
Q: in the shunt connected DC motor, the equation that calculate field current If is Vf/(Ra+Rf) Va/Ra…
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Q: A 35.2 HP, 250 V, 100 A, 1500 RPM, series DC motor with no armature reaction is considered in this…
A: In the given specification of the dc series motor, it is said that rated current and speed are 100A…
Q: For a 18600W 2400rpm DC motor, the following values are given: Ra = 0.089 Q (value at room…
A: for the DC motor, power rating =18600 W rated speed =2400 rpm armature resistance (Ra) at room…
Q: 1. Calculate the torque in Newton meter developed by a 440V dc motor having an armature resistance…
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Q: A 220-V Y-connected synchronous motor is drawing 50 A at unity power factor from a 220-V power…
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Q: A 180-V, DC motor is connected as a cumulatively-compounded DC motor. Its characteristics are given…
A:
Q: A 240V, dc shunt motor with an armature circuit resistance of 0.10 runs at 850rpm when the armature…
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Q: P6) A 3 phase, 2300V, 60H212-pole, Y-connected synchronous motor has X, = 4.5 ohm and negligible…
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Q: 8. At constant field current the DC shunt motor absorbs 20 A and the developed torque equ 55N.m.…
A: Given data, Initial current of motor if1=20 A. Initial torque τ1=55 Nm. Torque is reduced by 25%.
Q: n the equivalent circuit of DC motor below, Ra=0.022, Vdc=120 V, Vbrush=0 V, and no load speed…
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Q: (c) A 50 HP, 250 V, 1200 r/min, DC shunt motor has an armature resistance of 0.06 Q. Its field…
A: A DC shunt motor Armature resistance Ra = 0.06 ohm Field winding resistance Rf +Radj= 50ohm Sketch…
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- A 230v DC series motor takes 30A when giving its rated output at 1400 rpm. It has a field resistance of 0,4 ohms, Calculate the value of the resistance (Ra) of the armature when Eb = 200V. Select the correct response: 0.2 ohms 0.6 ohms 0.8 ohms 0.4 ohms459. The current drawn by a 460 V dc motor of armature resistance 0.5 ohm and back emf 420 V is -A 240 V, 4 pole wave wound dc shunt motor has 600 conductors on its armature. It has an armature resistance of 0.7 ohm and back emf of 210 V. Calculate its speed if it has a flux per pole of 10 mwb.
- A 22 kW, 230 V Series DC motor runs at 750 rev/min at full load and draws 110 A from the supply. The resistance of the armature is 0.1250 and the series field 0.0250. Calculate the speed when the load is reduced such that the input current reduces to 56 A. Assume that the useful flux per pole at 110 A is 23.9 mWb and the flux for 56 A is be 15.5 mWb.2. A 2-pole, 50 Hz induction motor supplies 15 kW to a load at a speed of 2950 rpm. a. What is the motor's slip? b. What is the induced torque in the motor in N-m under these conditions? c. What will be the operating speed of the motor be if its torque is doubled? d. How much power will be supplied by the motor when the torque is doubled?The dc series motor has a linear torque- speed characteristics. O True O False
- A 250 V series motor has an armature resistance of 0.2 ohm and a series-fieldresistance of 0.18 ohm. If the speed is 6oo RPM when the current is 32 amps.What will be the motor speed when the load is reduced so that the current is18 amps, under which condition the percent flux change is 50 % of the percentcurrent change.A 6-pole, 50-Hz, 3-φ induction motor is running at 950 rpm and has rotor Copper loss of 5 kW. Its rotor input is ......kW. 100 10 95 5.3A 240v DC series motor has an armature current and resistance of 30A and 0.2 ohms respectively. Calculate the value of the series field resistance if the back emf is 220V. Select the correct response: 0.1 ohms 0.8 ohms 0.3 ohms 0.5 ohms
- A 10 kW, 250 V shunt motor has an armature resistance of 0.5 Ω and a field resistance of 200 Ω. At no load and rated voltage, the speed is 1200 rpm and the armature current is 3 A. At full load and rated voltage, the line current is 40 A and because of armature reaction, the flux is 4 % less than its no-load value. What is the full load speed?A 20-hp, 200-V, shunt wound DC motor has an armature resistance of 0.7 Q and a field resistance of 100 Q. The adjustable resistor, Rsdj can be adjusted from 50 2 to 350 2. Figure 1 shows the motor's circuit diagram, and Figure 2 illustrates its magnetisation curve. R. Rali Re EA Figure 1: Equivalents circuit of a dc motor 300 280 260 Speed = 1500 rpm 240 220 200 180 160 140 120 100 so 60 40 20 o 01 02 03 04 05 06 0.7 08 09 1 11 12 1.3 14 1.5 1.6 1.7 1.8 19 2 Figure 2: Magnetization curve of a de motor.A DC motor should be operated in a strong field which is due to the What happens to if suddenly goes a) nothing, it continues rotating b) it over speeds c) it stops rotating current if moter if rotating to zero. as before