i.   When the machine is tested for its magnetization property check, the following observations are noted Draw the magnetization curve and explain the errors (if any). Why it does not start from zero and why the speed of 1000 is necessary?

Q: A 6-pole, 24 KW, 120 V, DC machine has a triplex LAP-wound armature which has 72 coils with 10 turns…

A: Given A 6-pole, 24 KW, 120 V, DC machine has a triplex LAP-wound armature which has 72 coils with 10…

Q: 2. DC Motor has 100 mWeb/pole of flux, 120 no. of conductors, 4 field poles, and it has wave winding…

A: Given a DC motor has, Flux per pole, φ=100 mWbpole Total number of conductors, Z=120 Total number of…

Q: Q4. An 8-pole DC generator has 400 armature conductors and a useful flux of 0.05 Wb. What will be t…

A: Given data, Number of pole P =4 Number of conductor Z=400 Flux per pole ϕ=0.05 Wb Speed N=1500 rpm…

Q: A four-pole, lap-would DC machine has 462 conductors in the armature. The average flux per pole is…

A: Number of poles P=4, Number of conductors Z=462, Speed N=1000 rpm, Average flux per pole ϕ=0.02 Wb,

Q: Problem 11 A loaded shunt-wound D.C. motor operates with magnetic flux of O-0.20Wb and has an…

A:

Q: DC series motor

A: For the DC series motor, Ise=Ia =Ia   Flux, conductor, poles, armature resistance values given in…

Q: types of power losses of DC motor

A:

Q: Question 4 For an armature voltage of 100V, and an armature current of 10A, a separately excited dc…

A:

Q: The intermediate between mechanical energy and electrical energy in electrical machines is... a) A…

A:

Q: If the armature current in a dc machine is 400A, what should be the current in each winding if the…

A: Given Armature current = 400 Amp, No.of Poles = 10 To calculate current in each path

Q: A 4 pole armature of a DC machine has 175 conductors and a flux per pole of 0.1 wb. Find the EMF…

A: Given a DC machine having, Number of poles, P = 4 Number of conductors, Z = 175 The flux per pole,…

Q: olb ir CI AT Classroom a docs.google.com A 300 V DC shunt motor runs at 2400 r.p.m when taking an…

A: The armature current is constant so back EMF will be constant in both cases. The speed after flux…

Q: Explain the working principle of permanent magnetic D.C. motors (Electrical energy into mechanical…

A: Step-1->Working Principle of DC Motor-:Fleming's Left-Hand Rule, which states that when a…

Q: A DC machine has total armature ampere conductors of 4500 and total flux in the machine is 0.14 wb.…

A: Given information is shown below:

Q: Evaluate the emf generated in a 6-pole, lap wound DC machine having flux/pole equal to 0.3 wb…

A: Evaluate the emf generated in a 6-pole, lap wound dc machine with the following parameters: Flux per…

Q: The current in a conductor on the armature of a dc motor is 300A. The flux under the poles is…

A:

Q: Calculate the torque in newton-metre developed by a 440 V dc motor having an amature resistance of…

A: GivenTerminal voltage V=440 vArmature resistance ra=0.25 ΩSpeed N=750 rpmArmature current Ia=60 A

Q: 1.) a)Determine the type of DC Machine that can be utilized in traction purposes and locomotives on…

A:

Q: What should be the number of revolutions of a dc machine to be able to have a generated em of 200V?…

A: In this question We need to determine the speed of the DC shunt motor.  We know E= PΦZN/(60A)

Q: Torque on a Current Loop: Motors and Meters• Describe how motors and meters work in terms of torque…

A: (a)     The motor contains the windings which is a loop of wire. The loop is placed between the…

Q: What should be the number of revolutions of a dc machine to be able to have a generated em of 200V?…

A: Given data- DC machine- Generated emf E=200 V, Number of poles P=4, Total active conductors Z=746,…

Q: 1. Compare the reaction of Dc motor and dc generator. Also explain rule by which DC generator/motor…

A: The effect of the armature flux on the main field flux is known as armature reaction. It causes very…

Q: The current in a conductor on the armature of a dc motor is 300A. The flux under the poles is…

A:

Q: Explain how the magnetization curve is measured for a dc machine.

A: The magnetization curve is the curve which gives the relation between open circuit armature terminal…

Q: Hysteresis loss in a dc machine is on frequency of a) independent, dependent, magnetic reversal b)…

A: The solution is provided in the following section:

Q: If the armature current in a dc machine is 400A, what should be the current in each winding if the…

A: Note In Lap winding,  Number of pole (P) = Number of Parallel path (A) In Wave winding, Number of…

Q: his according to the average magnetic flux below the poles what is the value of its density?

A:

Q: Types of DC Generators 1. The armature of a separately-excited DC generator has 0.06 effective…

A:

Q: A 20 kW shunt machine having an Armature circuit Resistance of 0.5 N and a filed resistance of 1200,…

A: Draw the circuit diagram for the DC shunt generator.

Q: The electromagnetic torque in non sallent pole machines depends on, Oa peak value of stator and…

A: b) number of poles, machine dimensions at the air gap, or peak value of stator and rotor MMF. The…

Q: 3. Which of the following statements IS NOT CORRECT ? * for two motors with equal output power,…

A: Motor: It is an electromechanical device. this takes the electrical input and converts this power…

Q: The armature of a d.c. The machine has a resistance of 0.25 ohm and is connected to a 300V supply.…

A:

Q: A 1.5 hp Permanent magnet motor generates a voltage of 90 V when the motor runs at 2900 r/mine and…

A: The electrical energy employed as a DC motor's input source, direct current, is transformed into…

Q: A 4-pole lap connected DC motor draws an armature current of 100 Amperes at 220 Volts. The motor has…

A:

Q: A 4 pole lap wound dc machine has 728 active conductors running at 1800 rpm. The flux per pole is…

A:

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.