- Indicate whether the following statement are true or false * True False In a dc machine for the same value of Z, N, armature, e.m.f. is less with wave winding than with lap winding

Q: A 4-pole, wave-wound, 750 rpm shunt generator has field resistances of 0.4 ohm and 200 ohms,…

A: The solution is given below

Q: An 6 pole, wave connected armature has 580 conductors and its generated e.m.f is 125 V. If the…

A: To solve above problem, one should know the EMF equation of DC generator, which is given by: E…

Q: Numerical Problems 1. A four-pole, lap wound DC machine is having 500 conductors on its armature and…

A: Dear,as per company guidelines we can answer only one question at a time, kindly post other question…

Q: Two dc generators are connected to a common load. Generator 1 has armature emf of 250 V and armature…

A: Given, Two DC generator are connected to a common load, Generator 1 has, EMF, E1=250 V Armature…

Q: The armature reaction of DC machines is less under no load condition. Select one: O True O False

A: Armature reaction is the effect of armature fluxon the main field flux. Armature flux is due to…

Q: Explain the Commutation process in DC machines.

A:

Q: Which of the following is preferred to counter the effect of armature reaction in DC machine? Use of…

A: Given   To counter the effort  of armature reaction we use

Q: Design the Lap winding diagram of DC machine based on the following parameters: • Number of Loops =…

A: In Duplex lap  winding two winding is used and they are connected with brush in parallel. There are…

Q: The 4-pole direct current electric machine works as a generator. In this direct current machine,…

A:

Q: 1.) a)Determine the type of DC Machine that can be utilized in a crane on the basis of the…

A: DC machine: This is a machine that produces DC quantity. This may be a generator or a motor.

Q: 2- A six-pole, DC shunt generator is wave-connected, supplies a load of A 12 kW, 240 V and an…

A:

Q: What are the main three types for connections of self excited DC generator? please give a brief…

A: The three man type of connection of self excited DC generator are :  1) Shunt Genrator : - Only…

Q: shunt generator has an armature resistance of 12 and field resistance of 80N. Field c xty turns and…

A:

Q: Find its armature resistance,

A:

Q: Q. Answer the following for DC Machines: (i) Explain the armature reaction in DC motor. How the flux…

A: NOTE:- According to company policy, only 3 subparts can be answered at a time. So repost the…

Q: The relationship between field current and induced armature voltage is known as open circuit…

A: The open circuit characteristics of DC machine is the graph drawn between INDUCED EMF IN ARMATURE…

Q: Vhich of the following statements is correct: O a. The armature winding is the rotor in DC machines…

A: The explanation is as follows.

Q: The armature of a dc motor has 648 conductors, 65 % of which are directly under the pole where the…

A: Given :No. of conductors, Z=64865 % of conductors are directly under the pole Flux density, ϕ=48,000…

Q: 1. A four-pole, lap wound DC machine is having 500 conductors on its armature and running at 1000…

A: Note: We are authorized to answer one question at a time since you have not mentioned which question…

Q: An 8-pole d.c. shunt generator with 778 wave - connected armature conductors and running at 500…

A:

Q: The introduction of interpoles in between the main pole improves the performance of dc machines,…

A: Given that The introduction of interpoles in between the main pole improves the performance of dc…

Q: a) How laminated core of electrical machines reduces the iron losses?

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

Q: 2-A six-pole, DC shunt generator is wave-connected, supplies a load of A 12 kW, 240 V and an induced…

A: Acoording to the given data : p=6 Pload=12000 W V=240 V Eg1=250 V ϕ2=1.2ϕ1 Number of parallel paths…

Q: A DC machine has 536 conductors connected as a lap winding at its armature. The machine has 6-pole…

A: According to the question we have to find, (a) Machine constant (b) Generated voltage (c) conductor…

Q: 16. A) In DC motor, the force on the current-carrying conductor in a magnetic field depends upon…

A: In this question we will find force on current carrying conductor in magnetic field and speed of DC…

Q: What are the different losses taking place in a DC machine. What techniques are employed to reduce…

A:

Q: 1.- The production of a force in a conductor carrying current that is inside a magnetic field, is…

A: 1.- The production of a force in a conductor carrying current that is inside a magnetic field, is…

Q: An 2 pole, wave connected armature has 590 conductors and its generated e.m.f is 110 V. If the…

A: We know there is direct formula for generated emf , from that formula we will calculate flux per…

Q: ( Write the types and shortly explain the magnetic losses for electrical machines. )

A: In this question we discuss about type of magnetic losses for electrical machines

Q: Explain the Construction and Applications of DC Machines.

A: Construction of a DC machine: The DC machine consists of two main parts: Stator and Rotor 1. Yoke:…

Q: Q2. What is the work principle of generator? and what is the magnitude of electromotive force? Q3.…

A: working principle of generator : Generator usually works on the priciple of faradays laws of…

Q: What are the methods of excitation of the field windings of the DC machines? Draw the corresponding…

A: In the DC machine, there are two types of Excitation- 1). Separately Excitation of DC machine 2).…

Q: True False D.C shunt generators are most suitable for arc winding Answer by true or false * True…

A: Application of DC machine and operation of DC machine.  Each DC machine have two type winding…

Q: An 6 pole, lap connected armature has 500 conductors and its generated e.m.f is 120 V. If the…

A: no. of pole P = 6 Lap connected winding, so no. of parallel path A=P=6  No. of conductor Z=500…

Q: Suppose that we are designing a 1200-rpm dc motor to run from a 240-V source. We have determined…

A: Given Nm=1200 rpm Calculating linear velocity of the conductor Nm=ωm602πωm=Nm602πωm=12002π60ωm=40π

Q: Draw and explain the important parts of DC Generator?

A: Commutator :- A commutator works like a rectifier that changes AC voltage to DC voltage within the…

Q: TRUE OR FALSE) - Energy conversion of DC generator is based on the principle of production of…

A: This question belongs to electrical machine . It is based on the working of dc generator and dc…

Q: When the DC machine is running under saturation condition, then flux per pole decreases due to…

A: Ans. True

Q: What is Commutation in DC Machines?

A: Commutation in DC machine : communication in DC machine is the process of converting alternating…

Q: The armature reaction of DC machines is more during load condition. Select one: True False

A: Armature reaction is the effect of armature flux on field flux.

Q: . what are the features of Lap winding of DC machine?

A: -There are two types of windings in DC machine namely; wave winding and lap winding. - In lap…

Q: DISCUSSION 1- Comment on the curves obtained. 2- What are the types of the losses in the DC…

A: There are many characteristics of DC machine which are useful describing the behaviour of DC…

Q: 4. What for brushes are employed in DC generator? 5. What is the function of armature in a DC 6.…

A: In this question we will write function of brushes etc.. Note;:- as per guidelines , will answer…

Q: Explain differntial compounding of a dc machine.

A: The DC machine that have both the series and the shunt winding is known as the differential compound…

Q: An 8-pole DC machine has a simplex wave-wound armature containing 200 coils of 10 turns each. The…

A: Since you have asked multiple questions in a single request, we will be answering only the first…

Q: Develop a simple Lap Windings for DC MACHINE. Provide a winding table Given: 4 Pole, Pole Pitch=9,…

A: There are various types of winding- Simplex  Duplex Triplex These are categorized in Lap winding…