Faculty of GATE/ESE (Electrical Engineering) , Expertise in Electrical Core | Jony Ive Award Winner 2018 | Use code “PAWANCLIVE” to join

Pawan Chandani

In this course I have discussed electrical machine overview, construction of DC machine, different part of DC Machine like Yoke, field pole and winding, Interpole, compensating winding, brushes, armature core and winding, working principle of DC generator and working principle of DC motor, torque in rotating machine, working of commutator and delayed commutation.

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Hindi

(Hindi) Part 1-DC Machine: Electrical Engineering

Transformers

Electric Machines

Electrical Engineering

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In this lesson I have discussed overview of electrical machine, winding of electrical machine -there are two type of winding in electrical machine one is field winding and another is armature winding, field winding is used to create working class in DC machine and armature winding is used to carry high current and we use electrical machine for electromechanical energy conversion.

Overview of Electrical Machine (in Hindi)

In this lesson I have discussed construction of DC machine and in construction I discuss the Yoke part in detail.

Construction of DC Machine and Yoke (in Hindi)

In this lesson I have discussed field pole and field winding in DC machine.

Field Pole and Field Winding in DC Machine (in Hindi)

In this lesson I have discussed interpole and compensating winding in DC machine.

Interpol and Compensating Winding in DC Machine (in Hindi)

In this lesson I have discussed purpose of brushes in DC machine and explanation of armature Core and armature winding in DC Machine.

Brushes, Armature Core and Winding in DC Machine (in Hindi)

In this lesson I have discussed basic principle of DC generator and DC motor.

Working of DC Generator and Motor

In this lecture I have discussed production of torque in rotating machine and torque should be unidirectional in DC machines for that armature MMF and field MF should be stationary or we can say that the relative speed between both of them should be zero so that we get an unidirectional torque in DC machine for that we use a commutator that will make armature MMF stationary so that we get a unidirectional torque in DC machine.

Production of Torque in Rotating Machine

In this lesson I have discussed construction and working of commutator in DC machine

Working and Construction of Commutator

In this lesson I have discussed commutation process in DC machine

Commutation (Part 1)

In this lesson I have discussed commutation process in DC machine and also verify lenz law that says that effect always opposes the cause.

Commutation (Part 2)

In this lesson I have discussed commutation process and also discuss desirable condition of computation when a coil is being short circuited then emf induced in that coil should be zero that is the desirable condition of computation.

Commutation (Part 3)

In this lesson I have discussed complete theory of commutation and also discuss how EMF is induced in the coil in DC machine and what is the nature of that induced EMF in the coil and also discussed what is the nature of induced EMF across the brushes so at brushes we get nature of induced EMF in DC so and in the coil we get the nature of induced EMF in AC so commutator work as a rectifier for a DC generator.

Commutation (Part 4)

In this lesson I've discussed how commutator makes the armature MMF stationary.

Commutation (Part 5)

In this lesson I have discussed the concept of GNA and MNA that means geometric neutral axis and magnetic neutral axis.

Commutation (Part 6)

In this lesson I have discussed the complete commutation process in DC machine and we also see what is the meaning of commutation that means current reversal is called as commutation and time required to reverse the current is called commutation interval and also see two more terms one is under commutation and another is over commutation.

Commutation (Part 7)

In this lesson I've discussed delayed or under commutation process in detail.

Commutation (Part 8)

In this lesson I've discussed summary of DC Machine.

Summary of this Course

#Gate Ranker # Mtech from JEC Jabalpur. use code " MACHINE20" to attend my Classes. I don't teach "I simply explain the topic."

Ravendra Yadav

In this course we will be discussing about the properties of transformer core, laminations of core, magnetostriction and core type and shell type transformer.

(Hindi) Transformer for IES : Part - 2

This is the Crash course on transformer for RVUNL JE EXAM so all the topics of transformers will be covered in short not in detail.

Crash Course on Transformers for RVUNL JE EXAM (29/07/2019)

In this course, we will be discussing the basic laws which are required to understand the transformer and without the knowledge of basic laws, it is very difficult for us to proceed further. So in this course, we will cover all the basics related to transformers.

(Hindi) Part 1: Transformers for IES

This is the second part of the practice session on transformers in which we will be discussing previous year questions asked in UPSC IES exam.

(Hindi) Part 2: Practice Session on Transformers - ESE

This course is very important for ESE aspirants.

(Hindi) Torque developed and Commutation in DC Motor

In this course we will be discussing about each and every topic of DC machines in brief which will prove very helpful for the students for last minute preperation or for revision point of view.

Lessons

17 lessons • 2h 43m

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Overview of Electrical Machine (in Hindi)

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Construction of DC Machine and Yoke (in Hindi)

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Field Pole and Field Winding in DC Machine (in Hindi)

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Interpol and Compensating Winding in DC Machine (in Hindi)

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Brushes, Armature Core and Winding in DC Machine (in Hindi)

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Working of DC Generator and Motor

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Production of Torque in Rotating Machine

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Working and Construction of Commutator

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Commutation (Part 1)

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Commutation (Part 2)

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