We think you have liked this presentation. If you wish to download it, please recommend it to your friends in any social system. Share buttons are a little bit lower. Thank you!
Presentation is loading. Please wait.
Published byRoderick Keathley
Modified over 2 years ago
© NOTES - Doc. Ing. Pavel Pivoňka, CSc. DC GENERATORS ROTATING MACHINES - SAME CONSTRUCTION AS MOTORS: GENERATORIC RUN = 1 working status of DC machine SUPPLY = EXTERNAL MOVER - mechanical energy GENERATOR - converts mechanical into electrical DC DC GENERATOR = DYNAMO
© NOTES - Doc. Ing. Pavel Pivoňka, CSc. CROSS-SECTION VIEW DC MACHINE
© NOTES - Doc. Ing. Pavel Pivoňka, CSc. PRINCIPLES OF OPERATION
© NOTES - Doc. Ing. Pavel Pivoňka, CSc. GENERATOR ACTION
© NOTES - Doc. Ing. Pavel Pivoňka, CSc. MAGNETIZATION CURVE = k.I f F m = N f.I f ~ ~ SATURATION LINEAR REMANENT MAGNETIZATION
© NOTES - Doc. Ing. Pavel Pivoňka, CSc. COMMUTATION PROCESS SHIFTED NEUTRAL AXIS
© NOTES - Doc. Ing. Pavel Pivoňka, CSc. AUXILIARY COMMUTATION POLES
© NOTES - Doc. Ing. Pavel Pivoňka, CSc. ARMATURE REACTION DEFORMATION due to armature reaction MAIN POLES INTERPOLES
© NOTES - Doc. Ing. Pavel Pivoňka, CSc. BASIC EQUATIONS OF DC GENERATORS BEHAVIOR DEPENDS ON WINDINGS INTERCONNECTION
© NOTES - Doc. Ing. Pavel Pivoňka, CSc. THREE BASIC TYPES OF DC MACHINES SEPARATELY EXCITED SERIES SHUNT (also permanent magnet) COMPOUND MACHINE = combination of shunt and series
© NOTES - Doc. Ing. Pavel Pivoňka, CSc. SEPARATELY EXCITED GENERATOR
© NOTES - Doc. Ing. Pavel Pivoňka, CSc. VOLT-AMPERE (LOAD) CHARACTERISTICS Difference due to ARMATURE REACTION
© NOTES - Doc. Ing. Pavel Pivoňka, CSc. SHUNT GENERATOR
© NOTES - Doc. Ing. Pavel Pivoňka, CSc. EXCITATION OF SHUNT GENERATOR ! POLARITY of the field winding !
© NOTES - Doc. Ing. Pavel Pivoňka, CSc. COMPARISON OF GENERATORS SHUNT:welding machines
© NOTES - Doc. Ing. Pavel Pivoňka, CSc. DC MOTORS ROTATING MACHINES - SAME CONSTRUCTION AS GENERATORS: MOTORIC RUN = 1 working status of DC machine SUPPLY.
Forging new generations of engineers. DC Motors and Generators Instruction Plan.
ET 332a Dc Motors, Generators and Energy Conversion Devices 1Lesson a.pptx.
Chapter 17 DC Motors. Objectives After studying this chapter, you will be able to: Explain the principles upon which DC motors operate Describe the construction.
SEE 3433 ELECTRICAL MACHINES Classification of DC machines DC Generators - Separately excited - Armature reaction.
3. ARMATURE VOLTAGE AND GOVERING EQUATIONS 1). Armature Voltage （电枢中的感应电势） The induced voltage in a conductor is Then the induced voltage across armature.
Lecture 14Electro Mechanical System1 Current flowing in the armature coils creates a powerful magnetomotive force that distorts and weakens the flux.
Copyright 2003 McGraw-Hill Australia Pty Ltd PPTs t/a Electrical Principals for the Electrical Trades 5e by Jenneson Slides prepared by Anne McLean Figure.
DC Motor For students of the second stage in the Department of Electrical Engineering Introduction by Salam Mohammed Atiyah Master of Electrical Engineering.
Chapter 16 DC Generators. Objectives After studying this chapter, you will be able to: Explain the theory of electromagnetic induction Describe the basic.
KL3073 DC Motors. Direct Current (DC) Machines Fundamentals Dc motors are dc machines used as motors the same physical machine can operate as either a.
ELECTRICAL POWER AC MOTOR & DC MOTOR. INTRODUCTION An electrical motor machine that converts electrical energy to mechanical energy in the form of torque.
DC MOTORS Presented By: -Enosh Vishwanathan ( ) -Meet Pachchigar( ) -Raj Kevadiya( ) -Anjali Chavda( )
DC MOTORS. TOPICS TO DISCUSS Introduction to DC MOTORS. Principle. Construction. Working. Types. Speed control. Applications.
Akshay Thakur Electrical-B 3 rd sem.
Dcmotor1 Basics of a Electric Motor. dcmotor2 A Two Pole DC Motor.
ELECTRICAL ENGINEERING: PRINCIPLES AND APPLICATIONS, Third Edition, by Allan R. Hambley, ©2005 Pearson Education, Inc. Chapter 16 DC Machines.
DC GENERATOR Presented by, KAVYASHREE. S. INDEX INTRODUCTION TO DC GENERATOR. WORKING PRINCIPLE OF DC GENERATOR. PARTS OF DC GENERATOR. CLASSIFICATION.
The Electric Motor. Motors A motor is a rotating device which converts electrical energy into mechanical energy. A d.c. motor operates from d.c. only.
Interpoles. One way to reduce the effects of armature reaction is to place small auxiliary poles called "interpoles" between the main field poles. The.
DC Generator The dc machine operating as a generator is driven by a prime mover at a constant speed and the armature terminals are connected to a load.
DC GENERATOR CHAPTER-9. CONTENTS 1. Generator Principle, Construction & working 2. Parts of a Generator 3. EMF Equation of a Generator 4. Losses and Efficiencies.
Chapter 6 DC Machines EET103/4. Introduction An electrical machine is link between an electrical system and a mechanical system. Conversion from mechanical.
Lecture 15Electro Mechanical System1 Assignment 5 Page 95 : Problems 4-13, 4-14, 4-15 and 4.16 Due Date: Tuesday 8 th March, 2011 Quiz No. Next Week Quiz.
Elec467 Power Machines & Transformers Electric Machines by Hubert, Chapter 11 Topic: Characteristics of Shunt, Compound and Series DC motors.
ET 332A DC MOTORS, GENERATORS AND ENERGY CONVERSION DEVICES Lesson 7: Construction of Elementary Dc Generators 1.
Starter Basics P 206. Motor Principles n DC motors interaction of magnetic fields to convert electrical energy to mechanical energy n Current is applied.
ELEC 3105 Basic EM and Power Engineering Rotating DC Motor PART 2 Electrical.
ENERGY CONVERSION ONE (Course 25741) CHAPTER FIVE SYNCHRONOUS GENERATORS.
Instructor: Dr. ABDAL-RAZAK SH. Materials covered from Chapter 2: Direct Current Generators Working principle of a generator Practical DC generators.
DC Machines. Introduction One of energy can be obtained from the other form with the help of converters. Converters that are used to continuously translate.
Fundamentals of DC Electric Machinery History Introduction Principle of Operation of Electric Machinery Principle of Operation of AC Synchronous Machines.
Electrical Machines and Energy Conversion Unit 1 Deck 2 DC Generator Basics.
Department of Electrical and Computer Engineering EE20A - Electromechanical Energy Conversion DC Machine.
SEE 3433 MESIN ELEKTRIK SYNCHRONOUS MACHINES Basic principles.
Lesson 19: Non-Linear Operation of Dc Motors ET 332a Dc Motors, Generators and Energy Conversion Devices 1Lesson a.pptx.
1 DC Machines DC Motor The direct current (dc) machine can be used as a motor or as a generator. DC Machine is most often used for a motor. The.
CHAPTER 2 BASIC THEORIES OF DC MACHINES 1. MODES OF FIELD EXCITATION （励磁方式） For generators : 1). Separately excited （他励） --- The field winding is supplied.
Electrical machine1 J 2006 DC Motors. electrical machine1 J 2006 DC Motor The direct current (dc) machine can be used as a motor or.
DC GENERATORS. DC generators : dc machines used as generator. Five major types of dc generators, classified according to the manner in which their field.
Motors and Generators. Electric Machine: Motor and Generator stator & rotor wiring types: field winding: only provide field armature: the coil carries.
Direct-current motor is a device that transforms the electrical energy into mechanical energy. There are five major types of dc motors in general use:
1 Figure 17.1 A Rotating Electric Machine. 2 Configurations of the three types of electric machines Table 17.1.
Presented By :- GROUP :- 8 YEAR :- 2 nd YEAR – 3 rd SEM SUBJECT :- DC Machine & transformer TOPIC :- Basics of DC Machines.
Basic DC Generator Separately Excited Shunt Generator.
DC Generators (ii) Lecture No 4. Armature Resistance (Ra) The resistance offered by the armature circuit is known as armature resistance (Ra) and includes:
DC Generator Made By : Kaushal V Sangdot( )
DC MACHINES Maxwell’s Cork screw Rule :
Power System Fundamentals EE 317 Lecture 8 25 October 2010.
© 2016 SlidePlayer.com Inc. All rights reserved.