Critical resistance of a self-excited generator is closely related to the speed of the machine True O False

Q: 8. What conditions must be fulfilled for the self-excitation of a d.c. shunt generator? The…

A: According to question we have to write the conditions must be fulfilled for the self- excitation of…

Q: 8. What conditions must be fulfilled for the self-excitation of a d.c. shunt generator ? The…

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Q: By increasing the flux of main pole of a dc motor, the speed will be reduced true O False

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Q: The open circuit characteristic (0.C.C.) of a separately excited generator, at 600 rpm is: Field…

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Q: 3. Sketch the load characteristic of a d.c. generator with (i) shunt (ii) series excitation. Give…

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Q: - What are the differences between the components of a dc generator and a de motor? : Hou to solve…

A: As per Bartleby guidelines we are allowed to solve only one question, please ask the rest again.

Q: Find the torque developed in an induction machine rotating at 1450rpm if the power developed is 4kw.…

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Q: A 4-pole d.c. generator is delivering 20 A to a load of 10 Q. If the armature resistance is 0.5 N…

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Q: c) The O.C.C. of a DC shunt generator running at 300 rpm is as follows. 4 6. 7 Ir (A) Eo (V) 2 92…

A: It is given that: N=300rpm OCC Table:

Q: A DC generator with 8 pole, duplex lap winding excited with a flux of 3mWb/ pole. The number of…

A: Given: A DC generator with number of pole, P=8. Multiplexity of lap winding, m = 2 (duplex winding).…

Q: Q2: The O.C.C. of a d.c. generator driven at 800 revimin is as follows : EMF (V) | 220 Field current…

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Q: If we need to use a DC generator witha very good voltage regulation we choose: * DC Generators…

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Q: 4. The sole purpose of a commutator in a d.c. Generator is to (a) increase output voltage (b) reduce…

A: (4) Commutator is used in DC machines. It is used for providing a path for entering and outing of…

Q: DC compound machine; Explain how it works as a generator.

A: We have to explain the working of dc  compound generator as draw below

Q: 6.15 A DC shunt generator is rated 20 kW, 220 V, and 1800 rpm. It has armature and field winding…

A: A DC shunt generator is a self-excited generator, the armature winding is arranged in parallel with…

Q: 8) A 230 V fed single quadrant chopper has a 40% duty cycle. A separately excited DC motor is…

A: It is given that: Vs=230 VD=0.4km=0.5 VradsRa=2 ΩN=1400 rpm

Q: Q10. The e.m.f. generated in a D.C. generator is directly proportional to (a) Flux/pole (b) Speed of…

A: Emf equation of DC Generator: Eb = PΦNZ / 60A

Q: In a DC generator, the iron losses at 1000 rpm are 10 kW at a given field current. At a speed of 750…

A: In this question , dc generator is given with iron losses at different speed ...We have to find out…

Q: Which of the following will not prevent a self-excited shunt generator from building up to its full…

A: Self excited shunt generator does not build a load voltage in case the field is open. Why because…

Q: The series field winding of DC Machine has many turns of thick wire Select one: True False

A: The shunt field winding has high resistance(R is high) and series field winding has low resistance(R…

Q: Q14. A synchronous generator is operating in symmetry condition. Will an e.m.f. be induced in the…

A: As the flux that links with the conductor definitely changes with the time, thus there is an induced…

Q: The simple two-pole generator in the figure has the following information: JOLE the stator diameter…

A: The peak voltage in any phase of 3-phase  the stator diameter d=40 cm=0.4 m length of coil  l=40…

Q: In a DC machine, the reversal of current from one direction to opposite direction is done by O…

A: In DC machine there is a mechanical converter which is used to change the direction of current.

Q: A 10 KW full load output power of shunt generator having an armature circuit resistance of 0.75 Q…

A: given shunt generator

Q: Q6) select the right choice for the following sentences: 1. The critical resistance of the d.c.…

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Q: The shunt DC generator gives almost O Constant current O None of these O Constant voltage O Constant…

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Q: 4. The sole purpose of a commutator in a d.c. Generator is to (a) increase output voltage (b) reduce…

A: DC machines (Generator/ Motor) are the important parts of electrical drives. These machines are used…

Q: electrical machines A 480-V three-phase two pole 60-Hz induction motor running at a slip of 0.025.…

A: (a) Consider the formula for the speed of the magnetic field. Ns=120fp

Q: Torque developed by electrical motor acts in the opposite direction with direction of rotation of…

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Q: The induced torque in induction machines depends on Select one: Oa. The slip O b. The mechanical…

A: In this question we will write about induction torque..

Q: 1) answer the questions below. a) Does the slip increase as the load increases? What is the reason…

A: Dear student as per our guidelines we are supposed to solve only one question in which it should…

Q: During an experiment to determine the excitation curve for a separately-excited DC shunt generator…

A: It is given that: If=148mANo load terminal voltage,Vt=77.2VN=1828rpm

Q: Critical resistance of a self-excited generator is closely related to the speed of the machine O…

A: The detailed answer is solved below according to the given parameters and instructions in the…

Q: A self excited DC generator has no residual flux, comment how it can be excited

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Q: In DC Generator, of the machine produces flux in the airgap. Select one: O a. Armature O b. Field…

A: DC generator converts the mechanical energy into the DC electrical energy

Q: Damping in the generator should be considered in dynamic stability studies. Select one: O True O…

A: given statement is TRUE.

Q: How would you reverse the polarity of a self-excited DC generator

A: In this question we will write How would you reverse the polarity of a self-excited DC…

Q: The induced torque in induction machines depends on Select one: Oa The slip Ob. The mechanical speed…

A: The explanation is as follows.

Q: 7x10 x 1020 x 1500 E, = 178.5 V %3D 60 Example 26.9. An 8-pole d.c. generator has 500 armature…

A: The solution  is given below

Q: 015/ExPlain in bries The constreeetion of a Dc machine.

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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: Q.1(a) Describe the operating principle of the Van de Graaff generator and state a typical…

A: Since we only answer one question at a time. we’ll answer the first question only.Please resubmit…

Q: in series connected DC motor, the equation of electromagnetic torque is O Te = Laf * If * la O Te =…

A: Types of DC Motor DC series motor DC Shunt Motor Sepereted excited Motor Compound Motor…

Q: In a DC machine, the reversal of current from one direction to opposite direction is done by O…

A: Choose the correct option In DC machine,  the reversal of current from one direction to opposite…

Q: True or False: In a DC Machines, variable losses should be equal to constant losses to attain…

A: Note that there are various losses that occurs in an electrical generator or the motor. The losses…

Q: Q3 For the control system shown in figure. |TL(s) R(s) 1 C(s) 6. 0.15s + 0.9s a) Determine (i) M,…

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Q: Explain the effect of the capacitor on the operation of the asynchronous machine as a generator.

A: An induction generator can’t work in isolation because it continuously requires reactive power from…

Q: Shunt generator running at 2000 rpm, if flux is reduced by half, then what is the new speed O 1000…

A: The solution can be achieved as follows.