A 20kW, 200V dc shunt motor has an electrical efficiency of 86% and an armature resistance of 0.25Ω. What is the value of the field current (in

Q: What are the types of dc motor i need in 1 hr 200 words

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Q: A 220V do motor developing 25 hp (18.66 kW) runs at a speed of 1000 rimin. Calculate the torque in…

A: Given: Power Output= 25hp (18.65kW) Speed, N= 1000rpm To Find: Torque=?

Q: 1. A 230 V shunt motor takes a total current of 25 A. If the field winding resistance is 100Ω and…

A: Armature current=Total current-shunt field current. shunt field current=Voltage across…

Q: A 440 V d.c. Armature resistance of shunt motor is 0.25 Ω and field winding resistance is 220 Ω. A…

A: Solution: Given data; V =440 v, Armature resistance Ra=0.25 Ω, shunt resistance Rsh=220 Ω, Load…

Q: Why when I have a small, desired speed of a Dc MOTOR the measured speed has small error while if I…

A: A motor that operates by the Direct current and converts energy from direct current into mechanical…

Q: A series motor runs at 700 rev/min when the voltage is 300 V and the current is 20 A. The armature…

A: Initial speed of motor N1=700 rpm. Initial terminal voltage V1=300 V. Armature current Ia=20 A.…

Q: EA5 kW, 200 V dc shunt motor has armature resistance of 1 ohm and shunt field resistance of 100 ohm.…

A: According to the question we have to find the value of the total copper loss.

Q: A series DC generator has an output voltage of 200 volts, an armature resistance of 0.070 and an…

A: Consider the formula for the EMF is. E=V+IR Here, R is the combined resistance of field winding and…

Q: Two series motors are exactly alike in construction except that the air gap of one is slightly…

A: The solution is given below

Q: Mark the WRONG statement. In induction type kWh meters

A: The induction type energy meter consists of an aluminium disc and it is placed between two…

Q: Calculate the losses in the machine and its efficiency if the power input is 18,000 watts, under…

A: To find the losses in the machine and it's efficiency Given : power input = 18000 watts  And output…

Q: A long shunt compound motor takes a current of 24 A at 400 V supply. The armatur series field and…

A: In this question we will find long shunt compound  motor overall efficiency....

Q: 5. A 20KW dc shunt generator delivering rated output at 1000rpm has a terminal voltage of 500 V. The…

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Q: The counter e.m.f. of a d.c. motor often exceeds the supply voltage aids the applied voltage helps…

A: a..>> The back emf of a dc motor makes the motor to draw as much armature current as it is…

Q: How can i Estimate the maximum torque of the motor three phase

A: We can estimate the maximum torque by the solving the slip at maximum torque whose approximate value…

Q: A 250 V series motor has 0.5 ohms armature resistance and 0.5 ohms field resistance. It consumes 10…

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Q: A 220 V shunt motor takes a total current of 50 A. If the field winding resistance is 80Ω and the…

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Q: Which of the following is used for very heavy loads? 1. Permanent magnet motor 2. AC servomotor 3.…

A: We need to discuss about the these motor based on heavy load.

Q: In a d.c. series motor, the torque developed is 20 Nm at 10 A. If the load current is doubled, the…

A: Given a dc series motor with, Torque developed, τ1=20 Nm. At the current, I1=10 A. When the current…

Q: A 220 V separately excited dc motor takes 20 A and the armature resistance is 1.0 0. If the armature…

A: We need to find out the speed for given motor.

Q: Calculate the shaft power of a series motor which has an overall efficiency of 83.5%. The motor is…

A: The data given in the question are: η=0.835, I=65A, N=550rpm, r=0.2Ω, ϕ=25mWb, Z=1200 The value of…

Q: A 230V shunt generator has a field resistance is 23 ohms and an Armature resistance is 1 ohm. It…

A: Shunt generator diagram

Q: tor has lap-wound arn rotating at 100 slots 2 turms per col. 100rpm. Flux per pole is 100mWb.…

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Q: A100 Volt dc series motors run at 400 rpm when taking a current of 55 Amp. Armature resistance is…

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Q: Problem 3: Design a PWM to control a servo motor based on the data given in Table 2 Angle -60 0 +60…

A: PWM refers to pulse width modulation is a term used to describe an digital signal. An PWM signal can…

Q: A 6-pole. 50-Hz 3-ϕ induction motor is running at 950 rpm and has rotor loss of 5 kW. Its rotor…

A: Thank you Reference,Concept and some relevant examples:

Q: A DC series motor of resistance 1 ohm across terminals runs at 1000 rpm at 250 V taking a current of…

A: Given, a DC series motor having Resistance across terminal, Rt = 1 ohm Speed, N1 = 1000 rpm Terminal…

Q: dc shunt motor

A: Given- DC shunt motor- Current, IL = 30 A Voltage, Vt = 230 V Efficiency= 80 %  Field resistance…

Q: A d.c. series motor drives a load at 30 rev/s and takes a current of 10 A when the supply voltage is…

A: Types of DC Machine Seperetely excited DC Motor Self excited DC motor DC shunt motor DC series…

Q: series motor is

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Q: A 250 V series motor draws a current of 40 A. The armature resistance is 0.15 Q and the field…

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Q: Draw occ at 800 rpm At 1000 rpm And 600 rpm and air gap Field Armature emf V Armature emf V Armature…

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Q: A 240 V DC shunt motor takes 20 A and delivers 28 N.m at 1350 r.p.m, the efficiency is . O 73.63% O…

A: Given: A DC shunt motor having following specifications Rated voltage, V=240 V Current, I=20 A…

Q: Iron loss of DC motor is constant with the load. Select one: O True O False

A: Iron loss depends on voltage.  As voltage is constant iron loss is constant.

Q: It's a Physics question about mechanical engineering. A shunt motor has a speed of 900 rpm when it…

A: Given- Speed (N)-900rpm Voltage (V)=120V Output power Pout=12 HP Losses=1048W 1HP=746W

Q: ) Describe a single wire DC motor with the help of a diagram.

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Q: A 220V long shunt compound motor has an armature resistance of 0.54Ω and a series field resistance…

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Q: The output power of a shunt motor is 7.8 hp. Its armature draws 50 A from 120 V. The armature and…

A: Given: Pout=7.8 HPIL=50AVt=120VRa=0.1ΩRf=100Ω Shaft power will be: Pout=7.8×746Pout=5818.8 W

Q: 9. Which type of motor is most widely used as servomotor today? a) induction motor b) DC brush motor…

A: We need to select correct option for servomotor .

Q: Electric motors works on the principle of O a. Couple O b. Torque c. Capacitor O d. Friction

A: Motor: It is an electromechanical device that converts the electrical energy into the mechanical…

Q: The current drawn by a 120 V dc motor with back emf of 110 V and armature * :resistance of 0.4 ohms…

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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.