Armature windings in ac generators are same as those used in DC machines Select one: O True O False
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: 1. The armature of D.C. generator is laminated to (a) Reduce the bulk (b) Provide the bulk (c)…
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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: 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: The concepts a 3 phase squirrel-cage induction motors (SCIM). 3 phase motors are widely used in the…
A: Types of Motor AC Motor Synchronous Motor Induction motor Squirrel cage Induction motor Wound…
Q: Armature windings in ac generators are same as those used in DC machines Select one: True False
A: The given Statment is true or false. Armature windings in ac generators are same as those used…
Q: The DC shunt generator with the terminal voltage 375 V, armature drop 9 V and the each brush drop 2…
A: As per the guidelines of Bartleby we supposed to answer first question only since both question are…
Q: A 44 kW, 125 V DC long-shunt generator has an armature, series field and shunt field resistances of…
A: In this question we will find armature induced voltage....
Q: a) What are the different between DC motor and DC generator? Show power flow diagram as evidence to…
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Q: The dc shunt generator given its rated voltage when the field resistance is higher than critical. O…
A: We know that the critical field resistance is the highest allowable shunt field winding resistance…
Q: he magnetization curve of a DC machine is linear. True or False
A: The explanation is as follws.
Q: A shunt generator delivers 1000 W at 125 V to a load. If the armature resistance is 0.05 Ω, and the…
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Q: ate the main parts of a 4 pole DC Generator in the illustration below.
A: Basic concepts og DC generator DC Generator is a electrical device that converts mechanical…
Q: A certain four pole simplex lap wound dc generator has a 768 armature conductors and revolves at…
A: Generated EMF =Flux×speed×Number of aremature conductors60×polesParallel paths. Where speed is in…
Q: In a DC machine, _provides the magnetic path as well as the mechanical support to the whole machine.…
A: we will consider function of each option to answer the given question .
Q: True
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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: State whether the following statement is true or false: In the case of a three phase induction motor…
A: In this question, Choose the correct option, check the given Statment is true or false.…
Q: The 50kW, 500V short compound DC generator has an armature resistance of 0.06 Ohms, a series field…
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Q: 4. A 20-kW, 250-V dc series generator has armature and series field winding resistances of 0.095 Q…
A: Given 20kW 250V Armature resistance = 0.095 Ohms Series field winding resistance=0.16 Ohms
Q: A flat-compound DC generator is used when an essentially unvarying voltage is required True False
A: In this question we will write about flat compound generator...
Q: For a 4-pole armature winding, the span between phases is equal to 90°. Select one: O True O False
A: The correct answer is FALSE
Q: __ is used to convert AC to unidirectional current in DC machine.(estimated time 1 minute) a.…
A: A commutator in a DC Machine has substitute groups of Copper and mica. Presently when the armature…
Q: The number of parallel paths and the number of series conductors required for a given kW rating of…
A: In this question , we will write about the number of parallel paths in dc machine depends hoon which…
Q: Determine the voltage regulation of a 2,000-V, 1-phase alternator giving a current of 100 A at 0.8…
A: For a 1-phase alternator,The full load voltage, VFL = 2000VCurrent, I=100APower factor,…
Q: Problem-3 A 220V dc machine supplies 20A at 200 V as a generator. The armature resistance is 0.2. If…
A: Given- Terminal voltage- V=220 V, Armature resistance- R=0.2 Ω. Armature current-Ia=20 A, Flux-…
Q: The DC shunt generator with the terminal voltage 325 V, armature drop 9 V and the each brush drop 4…
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Q: The field current of an DC machine is supplied from an external DC source is called as, Separately…
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Q: A lap-connected dc generator with 480 conductors has armature resistance of 0.06 0. If the…
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Q: The DC shunt generator with the terminal voltage 300 V, armature drop 8 V and the each brush drop 4…
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Q: By increasing the flux of main pole of a dc motor, the speed will be reduced true False
A: Considering the Formula of EMF for DC machine, E=PϕZN60AE∝Nϕor,ϕ∝1N Here, flux ϕ is inversely…
Q: A self excited DC generator has no residual flux, comment how it can be excited
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Q: In DC Shunt generator, the armature winding and field winding are connected in series Select one: O…
A: 1) In DC shunt generator the armature winding and field winding are connected in parallel while in…
Q: A dc shunt generator has a shunt field winding resistance of 100 ohms. It supplies a load of 5 kW at…
A: Given : In the given circuit the they have mentioned a DC shunt generator circuit. They want to…
Q: a four pole dc generator has an armature winding containing a total of 648 conductors connected in 3…
A: Concept: 1 maxwell= 10-8 weber Eg=P∅NZ60A V P: number of polesN: speed in rpm∅: flux per pole in…
Q: - A Dc shunt generator produces 445 A at 250 V, the resistance of shunt field circuit and armature…
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Q: A 30 kW, 300V d.c. shunt generator has armature and field resistances of 0.05 0 and 100 0…
A: It is given that: V=300 VP=30 KWRa=0.05 ΩRsh=100 Ω
Q: The field system is the rotating part of the DC Generator Select one: True False
A: In DC machine rectification of power (i.e. from AC to DC or viceversa ) is done by the commutator.…
Q: The open-circuit characteristic of a DC generator is also called as characteristics. O internal O…
A: The open characteristic equation of a dc generator is between no load emf and field current is…
Q: A Short shunt compound generator delivers a load current of 47 A at 244 V, and has the armature,…
A: Find the generated voltage of the short compound generator. Short shunt compound generator, shunt…
Q: A 20-kW, 250-V short shunt cumulatively compounded dc generator has the :following characteristics…
A: Given dataRa=0.05Ω, Rf=1000Ω,Rsr=0.025ΩPo=20 kW, V=250V
Q: A short, combined DC generator rotating at 1000 rpm, feeding a 45 kW load at 240 V supplies a…
A: Back EMF= Terminal voltage + voltage drop in series and armature resistance. power developed=Back…
Q: (c) Electric machines can be classified into two categories, state both categories. (d) Describe…
A: “Since you have asked multiple questions, we will solve the first question for you. If youwant any…
Q: In a DC machine, provides the magnetic path as well as the mechanical support to the whole machines.…
A: In a DC machine Yoke provides the magnetic path as well as the mechanical support to the whole…
Q: Critical resistance of a self-excited generator is closely related to the speed of the machine True…
A: True Critical resistance is related to speed.
Q: A three-phase induction motor with the specification in Table Q4(a) is used to drive a conveyor belt…
A: In this question, We need to sketch an equivalent circuit of the induction motor. Stator speed,…
Q: The current generated by the waterwheel generator changes direction as the wheel rotates, that is,…
A: Electrical machines can be either generator or motors. They can be either Ac machines or DC…
Q: With the aid of suitable, neat diagrams describe three methods of starting three-phase induction…
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Q: The DC shunt generator with the terminal voltage 375 V, armature drop 6 V and the each brush drop 4…
A: In this question , we will find generated emf in dc machine.
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- 111/ The armature reaction of the DC generator reduces the generated EMF. Select one: True FalseArmature windings in ac generators are same as those used in DC machines Select one: True False. When a self-excited compound DC generator supplies load, the terminal voltage is not the same as the generated emE Why? a) voltage drop across the armature resistance will reduce the voltage available at the load terminals b) where there is a series field, voltage drop across the series field resistance will reduce the voltage available at the load terminals c) both "a" and "b" d) neither "a" nor "b"
- A long shunt compound dc generator delivers a load current of 69 A at 396 V and has armature, series field and shunt field resistances of 0.096 Ω, 0.014 Ω, and 259 Ω, respectively. Calculate the armature current in ampere.Q2)A. Explain compound DC generator, also describe its types and terminal characteristics of compound DC generator. proper explanation and diagramThe armature reaction of the DC generator increases the generated EMF. Select one: True False
- Compare and contrast a cumulative compound DC generator and a differential compound DC generator in terms of performance. Note: Explain in no more than 70 wordsDevelop a simple Lap Windings for DC MACHINE. Provide a winding table Given: 4 Pole, Pole Pitch=9, progressive WindingsA short shunt compound DC generator supplies a load current of 10A at a voltage of 10 volts. If the resistance of armature, shunt field and series field windings are 0.001 ohm, 1 ohm 0.00 ohm respectively. a) Draw the the figure. And find the generated voltage.
- A long shunt compound DC generator delivers a load current of 150A at 230V and has armature, series field and shunt field resistances of 0.032, 0.015 and 92Ωrespectively. Calculate (i) induced emf (ii) total power generated and (iii) distribution of this power (iv) voltage regulation2. Draw and explain the important parts of DC Generator? Neatly pleaseA short shunt compound DC generator delivers a load current of 30 A at 220 V and has armature, series field and shunt field resistances of 0.05, 0.3 and 200Ω respectively. Calculate the induced emf, the armature current and the voltage regulation. Allow 1 V per brush for contact dro