While discussing armature testing: Technician A says to test for shorts, place the ohmmeter leads on a commutator segment and armature shaft. Technician B says that continuity should exist between the commutator and the armature shaft. Who is correct?

Q: Explain the working of Moving iron Attraction type of Instrument with a neat diagram Explain the…

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Q: For this Assessment, design an armature winding with the following information: 1. your choice of…

A: For the design we assuming following parameters 1) winding : Lap 2) simplex 3) Number of slots : 20…

Q: If generator armature current is 2A, the motor armature current is 3A, Voltage is 240 V , motor…

A: In this question, motor and generator armature current and resistance is given we have to find out…

Q: a) List the difference between destructive and non destructive testing b) Give five examples of…

A: Electrical machines can be DC  or  AC machines. Transformers are electrical machines that transfer…

Q: Q1) A shunt generator generated in the armature 243.6V and the resistance of the shunt field and…

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Q: What best describes commutation?

A: option:-b

Q: The core loss is the combined hysteresis and eddy current losses in the armature and field iron True…

A: There are two type of losses present in the machine copper loss core loss

Q: With example and figure explain hysteresis, dead zone?

A: 1) Hysteresis 2) Dead zone

Q: write about Automatic Washing Machine of closed loop control system It includes The introduction

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Q: Elimination of armature reaction requires a series field winding True False

A: Answer is True    Interpoles are similar to the main field poles and located on the yoke between the…

Q: Compare between armature resistance and synchronous resistance.

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Q: Q2/Clearly identify which of the following items are rotating and which of them are stationary. (1)…

A: (1) Commutator segments is a rotating part. Commutator convertes  alternating emf to DC . Commutator…

Q: If generator armature current is 2A, the motor armature current is 3A, Voltage is 240V,motor…

A: Generator current Ig = 2A Motor current Im = 3A Voltage V=240V Motor Armature resistance Ra= 4 ohm…

Q: 22   The DC voltage is generated in the Armature winding of DC Generator. Select one: True False

A: DC generator is an electrical machine which will generate DC power. This DC power can be used by all…

Q: / choose the correct answer The back emf in a dc motor is ___________________?. 1-opposes the…

A: Acccording to lenz's law effect oppose its cause.

Q: 4. Why is less overshoot desired for practical systems?

A: Overshoot: It is the manifestation of a function or signal that exceeds its target.

Q: Write a note on split rings in machines with the help of diagram.

A: The description and relevant diagram of split ring is shown below.

Q: What is the use of auxiliary contact in the magnetic controller?

A: The auxiliary contact is often used for the transmission circuit One contactor can have many…

Q: What is control system?

A: A control system is a kind of system which is use to obtain the desired responses by controlling the…

Q: Why is less overshoot desired for practical systems?

A: For the practical system, we want less disturbance in our system. As overshoot is output exceeding…

Q: What is meant by Armature reaction? Explain and Draw?

A: There are two types of winding in an electrical motor or generator, one is the stator winding and…

Q: 4 A 100KW, belt driven shunt generator running at 300rpm on 220V bus bars continue to run as a motor…

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Q: A 6 pole dc armature has Simplex lap connected 720 conductors, 3 turns per coil and 4 coil sides per…

A: Given: A 6 pole dc armature has simplex lap connected 720 conductors, 3 turns per coil and 4…

Q: 1- Why the counter emf cancels part of the armature voltage?

A: One individual question is to be answered. 1. The counter emf cancels part of the armature voltage…

Q: a) Explain electric drive. Draw the block diagram and explain the roles of its components.

A: Electric drive : An electric drive is a circuit which is used for controlling purpose it is used to…

Q: dentify and describe the basic functional elements that could be used in closed loop control for the…

A: Closed-loop Control system -  A closed-loop control system, also termed a feedback control system,…

Q: 4. What is the purpose of the magnetic contactor?

A: MAGNETIC CONTACTOR: Magnetic contractors are same as electrical relays which are used in Induction…

Q: If there are four parallel paths in the armature winding, then it is a .winding with .poles In the…

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Q: List the probable causes if the armature dos notable release after the magnetic starter is de -…

A: Upon de-energizing the magnetic starter, the armature should release.

Q: How dose dc motor used for elevator work ?

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Q: List the difference between open loop and closed loop control system with suitable example.

A: Difference between open loop and closed loop control system :

Q: Report : 1- Draw the open (no-load) characteristics from the above tables. 2- Derive the equation…

A: Here, we have given a circuit, for which we have to draw the open circuit characteristics when…

Q: 7. In a 10 pole, lap wound dc armature, the number of active armature conductor per pole is 50. The…

A: Given data for lap wound dc armature  No of pole = P = 10  No of active conductor per pole = 50

Q: Armature voltage  can be varied by varying the resistance of armature  resistance which is connected…

A: Armature resistance is connected in series with armature circuit.

Q: Select the DC generator used for arc welding. With an elegant drawing explaining its operation.

A: “Since you have posted a question with multiple sub-parts, we will solve the first three sub-parts…

Q: With proper schematic diagram explain how armature resistance can be determined using open circuit…

A: To understand this theory, we will refer the concept regarding alternator.

Q: Q1. Which of the following is not true of a DC machine commutator? (a) Its made of copper (b) Its…

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Q: Resistance of armature winding. (1) Kilo Ohm |(1.46) Ohm |(1.3) Ohm Resistance of shunt field…

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

Q: What is the frequency of the alternating voltage generated in the armature conductors of a) 6 pole,…

A: frequency of induced emf = No. of poles×speed120. a) given no .of poles = 6 and speed = 900 rpm…

Q: ☺ Determine the induced Valtage, which induçed in the armature of a do generutor running at 1750 rpm…

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Q: closed loop control system

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Q: If the armature of an eight-pole machine were wound with a simplex wave winding, how many parallel…

A: The armature winding of electrical machines are of two types as listed below : Lap winding Wave…

Q: What is meant by armature reaction ?

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Q: How should the armature be laminated for the purpose ? (DC GENERATOR QUESTION)

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Q: Q1) A shunt generator generated in the armature 243.6V and the resistance of the shunt field and…

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Q: al Describe with the aid a diagram the Hopkinson test for shunt D.C. machines b/ The following…

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Q: What are the steps for making a control project to the end? I want to answer in detail

A: The closing phase of control project involves these several steps. Formally transfer all…

Q: find a real Example of closed loop Control System , and Explain how it work

A: The explanation is as follows.