# ELECTRICAL & MECHANICAL TECHNOLOGY

 Course Code : 13A99301 Author : uLektz University : Jawaharlal Nehru Technological University, Anantapur (JNTUA) Regulation : 2013 Categories : Civil Format : ePUB3 (DRM Protected) Type : eBook

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Description :ELECTRICAL & MECHANICAL TECHNOLOGY of 13A99301 covers the latest syllabus prescribed by Jawaharlal Nehru Technological University, Anantapur (JNTUA) for regulation 2013. Author: uLektz, Published by uLektz Learning Solutions Private Limited.

Note : No printed book. Only ebook. Access eBook using uLektz apps for Android, iOS and Windows Desktop PC.

##### Topics
###### UNIT I :DC MACHINES

1.1 D.C.GENERATOR: Principles of Operation - Constructional Details-Expression for Generated Emf - Types of Generators-Losses in D.C.Generator

1.2 Characteristics of D.C.Generators - Applications of D.C.Generators

1.3 D.C. MOTOR: Principles of Operation - Constructional Details-Back EMF - Types of Motors-Armature Torque of a D.C. Motor

1.4 Characteristics of D.C.Motors Applications of D.C.Motors - 3Point Starter-Speed Control of Shunt Motors

###### UNIT II :TRANSFORMERS

2.1 Principles of Operation- Constructional Details - Types of Transformers - Emf Equation of a Transformer - Voltage Transformation Ratio

2.2 Equivalent Circuit - Equivalent Resistance - Equivalent Reactance - Losses in the Transformer - Copper Loss, Iron Loss - Transformer Tests

2.3 Open Circuit, Short Circuit Test - Efficiency of a Transformer - Regulation of Transformer

###### UNIT III : 3PHASE AC MACHINES

3.1 INDUCTION MACHINES: Introduction to 3-Phase Induction Motor - Principle of Operation - Constructional Details-Slip

3.2 Frequency of Rotor Current - Expression for Torque - Torque-Slip Characteristics - Applications of 3 Phase Induction Motors.

3.3 ALTERNATORS: Principle of Operation - Constructional Details - EMF Equation-Voltage Regulation by Synchronous Impedance Method

###### UNIT IV :IC ENGINES

4.1 Classification Of Ic Engines. Description And Working Of i.c. Engines - Stroke And 2 Stroke Engines – Comparison

4.2 Reciprocating Air Compressors - Description And Working Of Single Stage And Multistage Reciprocating Air Compressors - Inter Cooling

###### UNIT V :REFRIGERATION SYSTEM

5.1 Block diagram of a vapor compression refrigeration system - Names of common refrigerants.

5.2 Basic principles of air-conditioning - Room and General air conditioning systems.

5.3 Ducting – Different types of ventilation system.

###### UNIT VI :MECHANICAL MACHINES

6.1 Transmission of power, Belt, Rope, Chain and gear drive-simple problems

6.2 Earth moving machinery and Mechanical handling equipment

6.3 Bull dozers – power showels

6.4 Excavators - concrete mixer - Belt and bucket conveyers