Protection Scheme of a 3-Phase Induction Motor

Topics: Transformer, Circuit breaker, Relay Pages: 17 (5471 words) Published: January 10, 2013
PLC BASED PROTECTION SCHEME OF 3-Φ INDUCTION MOTOR

Authors

Muhammad Tariq 08-EL-85

Supervisor

Engr. Farhana Umer
Lecturer

DEPARTMENT OF ELECTRICAL ENGINEERING
UNIVERSITY COLLEGE OF ENGINEERING & TECHNOLOGY
The Islamia University of Bahawalpur
Year-2012

PLC BASED PROTECTION SCHEME OF 3-Φ INDUCTION MOTOR

By

Muhammad Tariq08-EL-85

THESIS SUBMITTED TO UCE&T, ISLAMIA UNIVERSITY OF PARTIAL FULFILLMENT FOR THE DEGREE OF

BACHELORS IN ELECTRICAL (Power) ENGINEERING

Research Supervisor

Engr. Farhana Umer
Lecturer

DEPARTMENT OF ELECTRICAL ENGINEERING
University College of Engineering and Technology,
The Islamia University of Bahawalpur
YEAR-2012

Table of Contents
Abstract ………..vii
Acknowledgementix
List of Figuresxi
List of Tablesxiii
Abbreviationsxiv
Chapter 1: Introduction1
1.1Characteristics of Protection Schemes……………...…………..3 1.2Components of Protection Schemes…………………...……….4 1.3Current Transformer……………………………………...…….5 1.4Voltage Transformer………………………………………..….12 1.5Relays……………………………………………………….....14 1.6Circuit Breaker………………………………………………...15 1.7Causes of Faults…………………………………………….....19 1.8Probability of Different Faults………………………………...20

Chapter 2: Introduction……………………………………………………........21 2.1 Features of PLC…...........................................................................23 2.2 FATEK's Powerful Communication Features.................................26 2.3 FATEK FBs-PLC Ladder Program Programming Software...........28 2.4 WINPROLADDER.........................................................................29 2.5 Ladder program editing screen.........................................................33

Chapter 3: Introduction........................................................................................34 3.1 Some Common Terms.......................................................................36 3.2 18F452 Microcontrollers..........................................................................................40 3.3 Features of Microcontrollers..............................................................40 3.4 Pin Diagram........................................................................................42 3.5 SPECIAL FUNCTION REGISTERS.........................................................................49 3.6 INTERRUPTS.....................................................................................................................51 3.7 MODES OF OPERATION.............................................................................................52 3.8 ADDRESSING MODES.................................................................................................53 3.9 Absolute Maximum Ratings..............................................................................................54 Chapter 4: Introduction..........................................................................................55 4.1 Rectifier...............................................................................................55 4.2 Peak Loss............................................................................................56 4.3 Rectifier Output Smoothing...............................................................56 4.4 Multiplexer..........................................................................................58 Chapter 5: Introduction..........................................................................................60 5.1 Programmable logic controllers based Relay Design..........................61 5.2 Hardware...
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