Transformer construction

DIGITAL MULTIMETER

EC6202 ELECTRONIC DEVICES AND CIRCUITS IMPORTANT QUESTIONS FOR NOV/DEC 2015

Here we have  provided EC6202 Electronic devices and circuits  important questions for the upcoming university exam Nov/Dec 2015.students can download and make use of it.

Regulation 2013, EEE  3rd semester EC6202 EDC part-A and important questions, EC6202 syllabus for NOV/DEC 2015 exam are provided below.

EC6202 ELECTRONIC DEVICES AND CIRCUITS Important questions for Nov/Dec 2015

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EC6202 Electronic devices and circuits important questions for Nov/Dec 2015

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Frequency and voltage across various countries

What is the difference between self and mutual induction ?

What is the difference between static and dynamically induced EMF ?

Statically induced EMF:

It is an emf induced without a relative motion between a conductor and magnetic field

Example: EMF induced in transformer

Dynamically induced EMF:

It is an emf induced with a relative motion between a conductor and magnetic field

Example: EMF induced in generator

TYPES OF DC MACHINE

EE6351 ELECTRICAL DRIVES AND CONTROL IMPORTANT QUESTIONS FOR NOV/DEC 2015

Here we have  provided EE6351 Electrical Drives and Control important questions for the upcoming university exam Nov/Dec 2015.students can download and make use of it.
Regulation 2013, MECH  3rd semester EE6351 EDC part-A and important questions, EE6351 syllabus for NOV/DEC 2015 exam are provided below.

EE6351 ELECTRICAL DRIVES AND CONTROL Important questions for Nov/Dec 2015

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EE6351 ELECTRICAL DRIVES AND CONTROL Syllabus

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EE6351           ELECTRICAL DRIVES AND CONTROL

UNIT I INTRODUCTION

Basic Elements – Types of Electric Drives – factors influencing the choice of electrical drives –

heating and cooling curves – Loading conditions and classes of duty – Selection of power rating for drive motors with regard to thermal overloading and Load variation factors

UNIT II DRIVE MOTOR CHARACTERISTICS

Mechanical characteristics – Speed-Torque characteristics of various types of load and drive motors –Braking of Electrical motors – DC motors: Shunt, series and compound - single phase and three phase induction motors

UNIT III STARTING METHODS

Types of D.C Motor starters – Typical control circuits for shunt and series motors – Three phase

squirrel cage and slip ring induction motors.

UNIT IV CONVENTIONAL AND SOLID STATE SPEED CONTROL OF D.C. DRIVES

Speed control of DC series and shunt motors – Armature and field control, Ward-Leonard controlsystem - Using controlled rectifiers and DC choppers –applications.

UNIT V CONVENTIONAL AND SOLID STATE SPEED CONTROL OF A.C. DRIVES

Speed control of three phase induction motor – Voltage control, voltage / frequency control, slip power recovery scheme – Using inverters and AC voltage regulators – applications.

TEXT BOOKS

1. VedamSubrahmaniam, “Electric Drives (concepts and applications)”, Tata McGraw-Hill,2001

2. Nagrath .I.J. & Kothari .D.P, “Electrical Machines”, Tata McGraw-Hill, 1998

REFERENCES

1. Pillai.S.K “A first course on Electric drives”, Wiley Eastern Limited, 1998

2. Singh. M.D., K.B.Khanchandani, “Power Electronics”, Tata McGraw-Hill, 1998

3. Partab. H., “Art and Science and Utilisation of Electrical Energy”, DhanpatRai and Sons,1994

search results for students:

EE6351 Electrical drives and control important questions for Nov/Dec 2015

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EE6351 syllabus

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EE6351 Electrical drives and control notes