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BALAJI INSTITUTE OF TECHNOLOGY & SCIENCE Laknepally, Narsampet, Warangal - 506 331
DEPARTMENT OF ELECTRICAL AND ELECTRONICS ENGINEERING LECTURE SCHEDULE
NAME OF FACULTY : M.SREELEKHA SUB: AC MACHINES-I
AY : 2017 - 2018 DEEE IV Sem
Lecture Number
Topic Covered Date
NAME OF THE TOPIC
UNIT-I (SINGLE PHASE TRANSFORMERS) 1
Introduction
2
Working Principle of a transformer
3
HV and LV Windings
4
Transformer on DC Supply
5
Transformer Classification
6
Construction of Transformer
7
Types of Transformers- based on construction
8
Comparision between Core type and shell type Transformers
9
Ideal Transformer
10
EMF Equation of a Transformer
11
Voltage and Current transformation Ratios
12
Transformer on NO-Load
13,14,15 Transformer ON-Load Practical Transformer Analysis 16 17,18
Practical Transformer on load considering winding resistance and leakage reactance
19
Equivalent circuit of a Transformer
20
Voltage Regulation of a Transformer
21
Losses in a Transformer
22
Efficiency of a Transformer
22,23 24 25,26
Open Circuit and Short Circuit Tests Necessity of Transformer rating is in KVA Difference between Ideal and Practical Transformer
27
All-Day Efficiency
28
Difference between distribution and Power Transformer
29,30
Polarity test on Transformer
31,32
Sumpner's Test
33,34
Paralle Operation of Transformers
35
Numerical Problems UNIT-II (THREE PHASE TRANSFORMERS)
36
Introduction
36
3-Phase Transformers Vs three 1-Phase transformer bank
37
3-Phase Transformer Connections
37
Voltage and Current Relationships for 3-Phase Transformer Connections
38
Open-Delta Connections
38
Parallel Operation of 3-Phase Transformers
39
Special Transformers
40
Auto-Transformers
41
Scott- Connection
42
Cooling of Transformers
43
Transformer Tank and accessories
44
Tap Changers
45
Humming of Transformers UNIT-III (ALTERNATORS)
46 47,48
Introduction Construction details of Alternators
49
Stator and Rotor
50
Types of Rotors
51
Exciters
52
Working Principle of an Alternator
53
Parts of Alternator with Material used
54
Frequency of Induced EMF
55
Synchronous Speed
56
Advantages of stationary Armature or Advantages of rotating Field system
57 58 59 60 61 62 63 64 65 66 67, 68
Armature Windings Classification of Armature windings Single phase and Poly phase windings Single layer and Double layer windings Lap,Wave and Concentric (or)Spiral winding Full pitch and Short Pitch Coils Concentrated and Distributed Winding Winding Factors EMF Equation of an Alternator Alternator on Load (Voltage Variations on Load) Synchronous Reactance and Synchronous Impedance Factors that cause a change of Alternator Terminal Voltage on Load Vector Diagrams of a loaded Alternator Voltage Regulation by Synchronous Impedance Method No-Load induced emf for different power Factors Numerical Problems UNIT-IV (PARALLEL OPERATION OF ALTERNATORS) Synchronising of Alternators
Necessity of Parallel operation(or)Advantages of Parallel Operation 69,70 Conditions for Synchronisation
71 72 73,74 75
Synchronising of Alternators 1-Phase Alternators by Lamp Method 3- Phase Alternators Load sharing between two Alternators
Sign of Faculty
Sign of HoD
DEPARTMENT OF ELECTRICAL AND ELECTRONICS ENGINEERING LECTURE SCHEDULE
NAME OF FACULTY : M.SREELEKHA SUB: AC MACHINES-I
AY : 2017 - 2018 DEEE IV Sem
Lecture Number
Topic Covered Date
NAME OF THE TOPIC
UNIT-I (SINGLE PHASE TRANSFORMERS) 1
Introduction
2
Working Principle of a transformer
3
HV and LV Windings
4
Transformer on DC Supply
5
Transformer Classification
6
Construction of Transformer
7
Types of Transformers- based on construction
8
Comparision between Core type and shell type Transformers
9
Ideal Transformer
10
EMF Equation of a Transformer
11
Voltage and Current transformation Ratios
12
Transformer on NO-Load
13,14,15 Transformer ON-Load Practical Transformer Analysis 16 17,18
Practical Transformer on load considering winding resistance and leakage reactance
19
Equivalent circuit of a Transformer
20
Voltage Regulation of a Transformer
21
Losses in a Transformer
22
Efficiency of a Transformer
22,23 24 25,26
Open Circuit and Short Circuit Tests Necessity of Transformer rating is in KVA Difference between Ideal and Practical Transformer
27
All-Day Efficiency
28
Difference between distribution and Power Transformer
29,30
Polarity test on Transformer
31,32
Sumpner's Test
33,34
Paralle Operation of Transformers
35
Numerical Problems UNIT-II (THREE PHASE TRANSFORMERS)
36
Introduction
36
3-Phase Transformers Vs three 1-Phase transformer bank
37
3-Phase Transformer Connections
37
Voltage and Current Relationships for 3-Phase Transformer Connections
38
Open-Delta Connections
38
Parallel Operation of 3-Phase Transformers
39
Special Transformers
40
Auto-Transformers
41
Scott- Connection
42
Cooling of Transformers
43
Transformer Tank and accessories
44
Tap Changers
45
Humming of Transformers UNIT-III (ALTERNATORS)
46 47,48
Introduction Construction details of Alternators
49
Stator and Rotor
50
Types of Rotors
51
Exciters
52
Working Principle of an Alternator
53
Parts of Alternator with Material used
54
Frequency of Induced EMF
55
Synchronous Speed
56
Advantages of stationary Armature or Advantages of rotating Field system
57 58 59 60 61 62 63 64 65 66 67, 68
Armature Windings Classification of Armature windings Single phase and Poly phase windings Single layer and Double layer windings Lap,Wave and Concentric (or)Spiral winding Full pitch and Short Pitch Coils Concentrated and Distributed Winding Winding Factors EMF Equation of an Alternator Alternator on Load (Voltage Variations on Load) Synchronous Reactance and Synchronous Impedance Factors that cause a change of Alternator Terminal Voltage on Load Vector Diagrams of a loaded Alternator Voltage Regulation by Synchronous Impedance Method No-Load induced emf for different power Factors Numerical Problems UNIT-IV (PARALLEL OPERATION OF ALTERNATORS) Synchronising of Alternators
Necessity of Parallel operation(or)Advantages of Parallel Operation 69,70 Conditions for Synchronisation
71 72 73,74 75
Synchronising of Alternators 1-Phase Alternators by Lamp Method 3- Phase Alternators Load sharing between two Alternators
Sign of Faculty
Sign of HoD
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