8. A dc series motor develops a torque of 20 Nm at 3 A of load current. If the current is increased to 6A, the torque developed will be (a) 10 Nm (b) 20 Nm (c) 80 Nm (d) 40 Nm

Q: 6. Calculate the torque produced by a DC motor with a CEMF of 95 V, an armature current of 75 A, and…

A:

Q: A 230V dc series motor has an armature resistance of 0.5 and 0.3 oh respectively. The motor draws a…

A: Case 1: Without diverter: The motor can be represented as below Here           Vin=Motor voltage…

Q: C.ttlAsiacell موعد التسليم ۱6 حزیران ۱۲:۲۰ م A universal series motor has a resistance of 30 and an…

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Q: Derive the speed torque characteristics of induction motor from its equivalent circuit and also…

A: We have given the following problem

Q: The rotor resistance per phase of a 4-pole, 50 Hz, 3-phase induction motor are 0.024 and 0.1. ohm…

A: Given induction motor with  Rotor resistance R2=0.024 ΩRotor reactance X2=0.12 Ωpoles p=4frequency…

Q: A 400-V shunt motor has armature resistance of 0.9 ohms and field resistance of 200 ohms. Determine…

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Q: 5- 10 Hp, 220 V shunt DC motor takes a line current of 4 A when running light. Calculate the…

A: To calculate the efficiency as a DC motor at half load and full load

Q: A 4-pole induction motor drives a load at 2500 rpm. This is to be accomplished by using an…

A:

Q: A 40Hp, 230V, 8 pole, 25HZ induction motor is running at 355 rpm at rate load. If the motor has the…

A: Given : Q=40Hp=29.828 kWV=230 VP=8f=25 HzN=355 rpmη=84.2%stator loss=1000 W Step 1: Calculate slip…

Q: A permanent-magnet dc motor has RA=0.5 Ω. With no load, it operates at 1070 rpm and draws 0.5 A from…

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Q: A 240v DC series motor has an armature current and resistance of 30A and 0,2 ohms respectively.…

A: A DC motor is used to convert direct current electrical energy into mechanical energy. A DC series…

Q: The dc series motor has a linear torque- speed characteristics. O True O False

A: The dc series motor has a inverse torque-speed characteristics.

Q: A 220V shunt motor develops a torque of 13 armature current of 25A. The torque develo armature…

A:

Q: A separately excited dc motor has the following nameplate data: 100 hp, 440 V, 2000 rpm. (a)…

A: power output in motor =2π×speed in rpm×torque60 from this we will calculate torque. given power…

Q: (2) ¿ubäi A 220OV shunt motor develops a torque of 108 N.m at an armature current of 20 A. The…

A: It is given torque of dc shunt motor is 108 N-m when armature current is 20 A. Therefore, T1=108 Nm…

Q: A de electrical shunt motor rated 50 kW connected to a 250 V supply is loaded as to draw 200 A when…

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Q: t motor operating at full load with an efficiency of 85 % running peed of 1000 rpm. Rated output…

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Q: A 220V shunt motor develops a torque of 135N.m at an armature current of 25A. The torque developed…

A: torque in shunt machine is directly proportional to product of flux and armature current. we will…

Q: A 220V. dc series motor is running at a speed of 800 rpm and draws 100 A. Calculate at what speed…

A: Supply voltage, V = 220 V Initial speed of the motor, N1 = 800 r.p.m Armature current at speed N1,…

Q: Pls explain the following. 1. What is Torque in DC motor and its types

A: Simple problem on electrical machines. Look below for the solution once:-

Q: A separately excited dc motor has the following nameplate data: 100 hp, 440 V, 2000 rpm. (a)…

A: According to question: The rated torque is calculated as ∵T=60P2πN⇒T=60×100×7462π×2000⇒T=356.2N-m

Q: A 230v DC series motor takes 30A when giving its rated output at 1400 rpm. It has a field resistance…

A:

Q: A 415V squirrel cage induction motor develops a torque of 40Nm. The torque developed by the motor if…

A:

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 dc series motor drives a load a 30rev/s and takes a current of 10A when the supply voltage is…

A:

Q: 1. When running at its operating speed, a 210-V dc motor with an armature whose resistance is 2.00 N…

A: Given:  A series DC motor whose terminal voltage    VT = 210 volts  Armature resistance, Ra = 2 ohm…

Q: a 220-v dc motor is running at a full load speed of 800 rpm and draws 100 A. calculate at what speed…

A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…

Q: A 230V DC series motor operates at its full load current and speed of 22A and 750 revolutions per…

A: Types of DC Motor Seperetely excited motor Series Motor Shunt Motor Compound Motor Differential…

Q: The power input to a 500V, 50Hz, 6 pole, 3 squirrel cage induction motor running at 975 RPM is…

A:

Q: A dc motor develops of torque of 100 Nm at 1000 rpm. If the motor now runs at 1200 rpm, the torque…

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Q: 200 +21. If maximum torque of an induction motor is kg-m at a slip of 12%, the torque at 6% slip…

A: Given: The torque is 200 kg-m The maximum torque slip is sm=12% The objective is to determine torque…

Q: A four-pole induction motor drives a load at 2500 rpm. This is to be accomplished by using an…

A: Given data: P=4nm=2500 rpms=4% The expression for the slip is given as,…

Q: A (220 V) series de motor runs at (400 rpm) and its useful torque is (100 Nm). If its efficiency at…

A:

Q: A 460V series motor runs at 500rpm taking a current of 40A. Calculate the speed and percentage…

A:

Q: A 415V squirrel cage induction: motor develops a torque of 40Nm. The torque developed by the motor…

A:

Q: 3- A series-resistance of series motor is 1 ohm. In driving a certain load at 1200 rpm, the current…

A:

Q: On no-load, a shunt motor takes 5 A at 250 V, the resistances of the field and armature circuits are…

A: The solution can be achieved as follows.

Q: develops a torque of 108 N.m at an armature current of 2

A: We know that torque  α (Armature current ) (field current)⇒T α IaIfIf → constant in case of shunt…

Q: A• universal series motor has a resistance of 30 and an inductance of X Henry. when connected to a…

A: Given, R=30ohms, V=250v, N=2000rpm, frequency f=50Hz

Q: A dc series motor takes 18 A from a 220 V main and runs at a speed of 750 rpm. When this motor is…

A:

Q: The armature current of a series motor is 60 A when on full load. If the load is adjusted so that…

A:

Q: A series-wound motor is connected to a d.c. supply and develops full-load torque when the current is…

A: Here we are given a series wound rotor , We know that for a DC motor Toque is given by T =  Φ.I In…

Q: A DC motor with a shunt field winding has the following characteristics: Vr = 96.0 V R, = 1.50 2 K=…

A: Given: A DC motor with shunt field winding have VT=96 VRA=1.50 ΩK=0.352 mT=18 Nm

Q: A 100V shunt motor is developing 6Hp while operating at an overall efficiency of 86%. The armature…

A:

Q: 5- In a 3-phase induction motor, if the supply voltage and frequency afe reduced by the ratio, then…

A: The speed depends on the supply frequency that is : Synchronous speed (N)=120fP

Q: The armature current of a series motor is 60 A when on full-load. If the load is adjusted to that…

A:

Q: A 430 V shunt motor has an armature resistance of 0.6 Ω and a field resistance of 250Ω. Determine…

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Q: A series motor develops 164 lb-ft torque when the current is 94A. If the load increases the current…

A: Given,T=164 lb-ftIa=94 ALoad increases the current 50%Flux increase of 20%T'=?

Q: The developed torque of the dc motor at standstill is: Select one: Lower compared with AC motor O…

A: we need to know developed torque at DC motor compared to the AC motor at standstill

Three Phase Induction Motor

The induction motor is an electric motor that runs on AC (alternating current) and it is of two type single phase motor that work on single-phase power supply and three-phase motor that work on three-phase power supply.