What Is CNC Machining? How does it work?

Q: 4-pole, wave-wound armature has 72 slots with two coil-sides per slot, each coil has four turns. If…

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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: Draw the DC Machine and label its parts Example. Armature Winding Stator Pole Shoe/ Face Field…

A: DC Machine An electrical device that transforms electrical energy into mechanical energy is a DC…

Q: A common dc machine has a total core loss of 6000 W when operating at rated speed and excitation. A…

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Q: ← Introduction to Control... The maximum a transformer temperature rise of is 50°C. It attains a…

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Q: Principles of Machine Shop Practice

A: Electrical machines can be either generator or motors. They can be either Ac machines or DC…

Q: h a labelled diagram of any DC machine  Discuss it part

A: A self-excited DC shunt motor, also known as a shunt wound DC motor, is a form of self-excited DC…

Q: A thicker wire is used in the DC series field winding than DC shunt field winding in DC machines. *…

A: current carrying capacity of wire is directly proportional to area of wire. i.e. thicker the wire ,…

Q: Mechanical losses represent: A. Windage losses B. None of the other choices are correct O C. Losses…

A: In this answer let us try to understand what are mechanical losses as explained below.

Q: The advantage of . .is that it protects the entire machine from dust and *.dirt. It also provides ..…

A: Each machine contains two separate terminals one is the stator part and the other is the rotor part.…

Q: the armature mmf can be -2 reduced by reluctance of the magnetic the circuit in the region of the…

A: The explanation is as follows.

Q: The armature of a 4-pole dc machine rotates at 840 rpm. The armature length and diameter are 40 cm…

A: Given data for a dc machine P=4 N=840 rpm l=40 cm d=30 cm ϕp=65mWb n=5 Average e.m.f. induced in the…

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

A: The opposing variable emf to the emf driving the motor is modeled as the reverse emf. The back emf…

Q: b) A newly built institution has bought a D.C. shunt generator to supply a library in order for…

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Q: The brushes of DC machines are usually made of and are in the shape of rectangular block. Select…

A: Brushes of dc machine are made of corbon graphite .and these are in rectangular shape.

Q: Following data are obtained by slip test on a salient pole machine: Idmax = 10 A 'dmin = 6.5 A…

A: Given- Slip test on a salient pole machine- Idmax=10 AIdmin=6.5 AVdmax=30 VVdmin=25 V To Find- The…

Q: What are the different losses which occur in a DC machine. * Your answer

A: In this answer let's discuss about the different losses that can occur in a dc machine.

Q: A dc machine has hysteresis loss of 300 W and an eddy current loss of 200 W when running at 1200…

A: Hysteresis loss Wh=300 W eddy current loss We=200 W The speed is N=1200 rpm Total core loss…

Q: Q9 / What are the function of brushes , pole and commutator in DC machine

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Q: 5. In relation to a compound d.c machine, choose the right statement from the following.     (A) The…

A: The objective is to find the correct statements.

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

A: First calculate resistance of each path and then find total armature resistance.  For wave wound no…

Q: A 220 V dc machine has an armature resistance of 1ohm if the full load current is 20 A, the…

A: Armature induced EMF=Terminal voltage ± drop in armature resistance drop in armature…

Q: Get the electromechanical analog model (torque-voltage or torque-current) of the system. With all…

A: Step 1:Γ=kΘ+BΘ'+JΘ''is equation of Rotational mechanical system. Where Tau = Torque,J =Moment of…

Q: In d.c. generators armature reaction is produced by --

A: (6) When the armature of a DC machine carries a current i.e. load current in armature winding…

Q: Draw the DC Machine and label its parts

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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: What are the rotating parts on d.c machine. commutator segments O brushes O inter-pole O pole shoe

A: In dc machine from the above option only commutator segments is moving. so option A is correct.

Q: What is armature winding? What is its history of discovery? give some examples and uses of it.

A: Generally, all electrical machines are majorly classified as follows. 1. DC machines (either DC…

Q: The resistance of the field winding(copper wire) of a DC machine is 0.25 ohm at 25°C. When operating…

A: In this question we need to find a resistance of the field winding at full load.

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

A: Given data, Voltage V=300 V Armature resistance Ra=0.25 Ω For generator:- Armature current Ia=100 A…

Q: A DC shunt machine while running as generator develops a voltage of 250 V at 1000 r.p.m. on no-load.…

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Q: In DC machines, are made from laminated steel or low carbon steel and used to reduce the armature…

A: Armature reaction is the shift (rotation) of the neutral plane of the dc machine stator magnetic…

Single Phase Transformer

A single-phase transformer is a type of power transformer. It is an electrical device that accepts converts the single phase alternating power into single phase alternating power. In this power conversion the voltage is stepped up or down. If the voltage is stepped up, the current will be stepped down and if the voltage is stepped down, the current will be stepped up.