Expertise in Power Transformers Theory, Performance, Types, Design, Applications, Protection, Testing and Diagnostics
What you'll learn
Understand the operation of transformers in electric networks
Identify the difference between ideal and real transformers
Learn how to obtain the approximate and exact equivalent circuits of transformers
Realize the phasor diagram of ideal and practical transformers
Realize the different types of transformer losses
Understand the efficiency and voltage regulation concepts for assessing the transformer performance
Learn how to perform open and short circuit tests to obtain transformer parameters
Realize the construction, types, and connections of three phase transformers
Learn how to get the per phase model of three phase transformers
Learn how to get the per unit transformer parameters
Case study on the effect of capacitor banks on transformer performance
Complete and simple explanation on transformer vector grroup
Learn how to obtain winding connections of any transformer vector group
Realize the different parts of power transformers
Learn about the core manufacturing
Core type vs. Shell type transformers
Learn about the winding manufacturing
Identify Helical, Crossover, Disc, and Sandwich windings
Relaize the importance of transformer tank and conservator tank
Relaize the importance of transformer oil
Identify the function of Breather unit, Buchholz relay, Surge arrester, and Rod gap in power transformers
Realize the importance of transformer terminals and bushings
Learn about transformer cooling
Learn how to practically calculate the transformer temperature rise
Study the effect of harmonics on transformer operation
Learn about the harmonics mitigation and K-factor transformers
Complete study on transformer inrush current
Study the effect of overfluxing and saturation on transformer operation
Learn about the reasons of humming noise coming from transformer
Learn how to provide the earting of transformer
Identify the transformers arrangements in the electric power system
Power transformers Vs. Distribution Transformers
Learn abut different types of transformers in electric network and their applications
Complete study on current transformers and voltage transformers
Complete study on auto transformers
Learn about shifting, earthing, and booster transformers
Learn about tertiary and high voltagetesting transformers
Complete course on transformer protection
Complete course on transformer testing and commissioning
Complete MATLAB Simulations on electrical transformers
Requirements
Electrical engineering fundamentals
Passion to learn about electrical power transformers from scratch
Description
Hi and welcome everyone to our course "Electrical Power Transformer Engineering- The Complete Guide"In this course, you are going to learn everything about electrical power transformers starting from the operation, theory, and design of three phase transformers moving to realizing the different types of transformers and their applications in the electric network, ending with a complete study on transformer protection, testing, and commissioning.Thus, this course is designed to take you from zero to hero concerning electric power transformer engineering field.The course is structured as follows:Firstly, a complete overview on the transformer theory and operation is illustrated through the following topics:Transformer theory of operation Ideal vs. Real transformersTransformer equivalent circuit (Exact and approximate)Phasor diagram of ideal and real transformersThen, the next topic will be about the assessment of transformer performance through the following topics:Transformer losses Hysteresis losses vs. Eddy current lossesTransformer efficiency Transformer regulationHow to perform open and short circuit tests to obtain transformer parametersThen, a complete study on three phase transformers is introduced since 99% of power transformers are actually three phase transformers. Thus, three phase transformers are explained in depth through the following topics:Construction, types, and connections of three phase transformersHow to get the per phase model of three phase transformers ?Per unit analysis in three phase transformersHow to get the per unit transformer parametersTransformer vector groupHow to obtain winding connections of any transformer vector group with examples ?Then, you are going to learn about the manufacturing and construction of power transformers explaining all the transformer parts. The following topics will be covered:Transformer core manufacturingCore type vs. Shell type transformersTransformer winding manufacturingHelical, Crossover, Disc, and Sandwich windingsTransformer main and conservator tankImportance of transformer oilBreather unit, Buchholz relay, Surge arrester, and Rod gap in power transformersTransformer terminals and bushingsTransformer cooling methodsThen, the next topic will be about the different factors that affect the transformer operation. These factors are discussed through the following points:Temperature rise and thermal ratingRelation between temperature rise and transformer loadingEffect of harmonics on transformersHarmonics mitigation and K-factor transformersInrush current in transformerOver fluxing and its effect on transformersReasons for humming noise coming from transformerEarthing of transformersThe next topic is about a complete study on different types of transformers and their applications in power systems. The following types of transformers are discussed in details:Power transformersDistribution transformersCurrent Transformers (CT)Voltage Transformers (VT or PT)Auto TransformersEarthing (grounding )transformerPhase shifting transformer (PST)Booster transformerThree winding transformer (tertiary winding)High voltage testing transformer (HVT)Then, we are going to a complete study on transformer protection where we are going to know identify the different transformer faults and provide a suitable protection device to this type of fault. The following outlines are discussed in depth:Types of transformer faultsProtection functions in transformerCore-balance leakage protectionCombined Leakage and phase fault ProtectionDifferential protection of transformersCT connections in transformer differential protectionHow to calculate CT ratios for differential protectionHarmonic restraint relayOver fluxing protection (Volt/Hertz relay)Restricted earth fault protectionOil and winding temperature trip relaysPressure relief device (PRD)Then, The next topic is about transformer testing, commissioning, and diagnostics where we are going to perform routine, type, and special test on power transformers to ensure the healthiness of the transformer before its energization on the site. The following tests are performed and explained:Insulation resistance (IR test)Tan Delta test (Dielectric loss test)Partial discharge (PD test)Hi-Pot test (Applied voltage test)Induced voltage testImpulse voltage testOil breakdown voltage (BDV) testDissolved gas analysis (DGA) TestTransformer turns ratio (TTR) testWinding resistance testMagnetizing current testPercentage impedance testVector group testFinally, Complete MATLAB Simulations on electrical transformers are done such as:MATLAB Simulation of 1-ph and 3-ph transformersPractical transformer Vs. Ideal transformer in MATLAB/SimulinkEfficiency, Losses and Voltage regulation calculations in MATLAB/SimulinkNo load and short circuit test of 1-ph and 3-ph transformers in MATLAB/SimulinkSo, if you are Looking for a COMPREHENSIVE course about Electric Power Transformer Engineering ? If your answer is YES, then you're definitely in the right place.
Overview
Section 1: Transformer Theory
Lecture 1 What is transformer ?
Lecture 2 How does transformer work?
Lecture 3 E-Book of the course
Lecture 4 Voltage Relations of Transformer
Lecture 5 Ideal transformer
Lecture 6 Real transformer
Lecture 7 Transformer exact equivalent circuit
Lecture 8 Transformer approximate equivalent circuit
Lecture 9 Phasor diagram of ideal transformer
Lecture 10 Phasor diagram of real transformer
Lecture 11 Phasor diagram of approximate equivalent circuit
Lecture 12 Solved example 1
Lecture 13 Solved example 2
Lecture 14 Solved example 3
Section 2: Transformer Performance
Lecture 15 Why is transformer power-efficient device ?
Lecture 16 Transformer losses
Lecture 17 Eddy current losses
Lecture 18 Hysteresis losses
Lecture 19 Transformer efficiency
Lecture 20 Condition for maximum efficiency
Lecture 21 Transformer voltage regulation
Lecture 22 Open circuit test on transformer
Lecture 23 Short circuit test on transformer
Lecture 24 Solved example 1
Lecture 25 Solved example 2
Section 3: Three Phase Transformers
Lecture 26 Construction and types
Lecture 27 Three phase transformer connections
Lecture 28 Per phase model
Lecture 29 Per unit system in transformers
Lecture 30 Solved example 1
Lecture 31 Transformer per unit parameters
Lecture 32 Another formula for transformer regulation
Lecture 33 Solved example 2- part 1
Lecture 34 Solved example 2- part 2
Lecture 35 Case study - Effect of capacitor banks on transformer performance
Lecture 36 Transformer vector group
Lecture 37 How to obtain winding connections of any transformer vector group
Lecture 38 Phasor and winding diagram of Yy0 and Yy6 connections
Lecture 39 Phasor and winding diagram of Yd1 and Dy1 connections
Lecture 40 Phasor and winding diagram of Yd11 and Dy11 connections
Lecture 41 Phasor and winding diagram of Yd5 and Dy5 connections
Section 4: Transformer Construction and Manufacturing
Lecture 42 Parts of power transformer
Lecture 43 Transformer core manufacturing
Lecture 44 Core type transformer
Lecture 45 Shell type transformer
Lecture 46 Stepped core construction
Lecture 47 Transformer winding manufacturing
Lecture 48 Helical winding
Lecture 49 Crossover winding
Lecture 50 Disc winding
Lecture 51 Sandwich winding
Lecture 52 Transformer insulation
Lecture 53 Insulation classes
Lecture 54 Transformer tank
Lecture 55 Transformer Oil
Lecture 56 Conservator tank
Lecture 57 Breather unit
Lecture 58 Buchholz relay
Lecture 59 Explosion vent
Lecture 60 Terminals and Bushings
Lecture 61 Surge arrester
Lecture 62 Rod gap
Lecture 63 Cooling methods for dry-type transformers
Lecture 64 Cooling methods for oil-immersed transformers
Section 5: Factors Affecting Transformer Operation
Lecture 65 Temperature rise and thermal rating
Lecture 66 Temperature rise calculation
Lecture 67 Relation between temperature rise and transformer loading
Lecture 68 Example - Temperature rise calculation
Lecture 69 Harmonics definition and causes
Lecture 70 Effect of harmonics on transformer
Lecture 71 Harmonics mitigation and K-factor transformers
Lecture 72 Inrush current in transformer
Lecture 73 Over fluxing
Lecture 74 Effects of transformer saturation on transformer performance
Lecture 75 Noise in transformers
Lecture 76 Transformer earthing
Section 6: Power and Distribution Transformers
Lecture 77 Transformers Classification
Lecture 78 Transformers arrangements in the electric power system
Lecture 79 Power transformers
Lecture 80 Distribution transformers
Lecture 81 Oil, Dry, and SF6 transformers
Lecture 82 Power transformers Vs. Distribution Transformers
Section 7: Current Transformers
Lecture 83 What is Current Transformer ?
Lecture 84 Equivalent Circuit & Burden of CT
Lecture 85 Types of current transformers
Lecture 86 Saturation of Current Transformer
Lecture 87 Knee Point Voltage of the CT
Lecture 88 Example: Determining the maximum burden of the CT
Lecture 89 Using CT in Electrical Networks: General Application Rule
Lecture 90 Specifications and Definitions of CT Parameters
Lecture 91 Current Transformers Used For Measuring
Lecture 92 Current Transformers Used For Protection
Lecture 93 Example of Current Transformer Rating Plate
Section 8: Voltage Transformers
Lecture 94 What is Voltage Transformer ?
Lecture 95 General Application Rule of VT
Lecture 96 Specifications and Definitions of Voltage Transformer Parameters
Lecture 97 Voltage Transformers Used For Measuring
Lecture 98 Voltage Transformers Used For Protection
Lecture 99 Key Differences between CT &VT
Section 9: Auto Transformers
Lecture 100 What is Auto transformer ?
Lecture 101 Power rating advantage of auto transformer
Lecture 102 Current and voltage relations in auto transformer
Lecture 103 Copper Savings in auto transformer
Lecture 104 Advantages of auto transformer
Lecture 105 Disadvantages of auto transformer
Lecture 106 Applications and use of autotransformers in power system
Section 10: Operation of Special Types of Transformers
Lecture 107 Earthing transformer
Lecture 108 Applications of grounding transformer
Lecture 109 Phase shifting transformer
Lecture 110 Booster transformer
Lecture 111 Three winding transformer
Lecture 112 Voltage stabilization by tertiary winding
Lecture 113 HV testing transformer
Lecture 114 HV testing transformer vs. Power transformer
Section 11: Transformer Protection
Lecture 115 Why do we need transformer protection ?
Lecture 116 Types of transformer faults
Lecture 117 Protection functions in transformer
Lecture 118 Core-balance leakage protection
Lecture 119 Combined Leakage and phase fault Protection
Lecture 120 Differential protection of transformers
Lecture 121 CT connections in transformer differential protection
Lecture 122 Problems and solutions with transformer differential protection
Lecture 123 Percentage (Biased) Differential relay
Lecture 124 Characteristics of biased relay
Lecture 125 Example 1 - How to calculate CT ratios for differential protection
Lecture 126 Example 2 - How to set differential relay settings ?
Lecture 127 Harmonic restraint relay
Lecture 128 Over fluxing protection (Volt/Hertz relay)
Lecture 129 Example 3 - V/F relay setting adjustment
Lecture 130 Over current & Unrestricted earth fault relay
Lecture 131 Restricted earth fault protection
Lecture 132 Difference between REF and differential protection
Lecture 133 Oil temperature trip relay
Lecture 134 Winding temperature trip relay
Lecture 135 Pressure relief device (PRD)
Section 12: Transformer Testing - Tests on transformer insulation
Lecture 136 Insulation resistance (IR test)
Lecture 137 Remarks on Megger test
Lecture 138 What is Tan Delta test ?
Lecture 139 Delta 4000 working principle
Lecture 140 Dielectric loss test procedure
Lecture 141 Partial discharge (PD test)
Lecture 142 Hi-Pot test
Lecture 143 Induced voltage test
Lecture 144 Impulse voltage test
Lecture 145 Surge generator for impulse test
Section 13: Transformer Testing - Tests on transformer oil
Lecture 146 Transformer oil sampling
Lecture 147 Oil breakdown voltage (BDV) test
Lecture 148 Dissolved gas analysis (DGA) Test
Lecture 149 Roger's ratio method of DGA
Section 14: Transformer Testing - Tests for transformer parameters
Lecture 150 Transformer turns ratio (TTR) test
Lecture 151 Transformer turns ratio test using TTR testing kit
Lecture 152 Winding resistance test
Lecture 153 Winding resistance test using winding resistance testing kit
Lecture 154 Magnetizing current test
Lecture 155 Percentage impedance test
Lecture 156 Vector group test
Section 15: MATLAB/Simulink Projects on Single-phase transformers
Lecture 157 Simulation of 1-ph transformers
Lecture 158 Open circuit test of 1-ph transformer in MATLAB/Simulink
Lecture 159 Short circuit test of 1-ph transformer in MATLAB/Simulink
Lecture 160 Efficiency, Losses and Voltage regulation in MATLAB/Simulink
Section 16: MATLAB/Simulink Projects on Three-phase transformers
Lecture 161 Design of 3-ph transformer in MATLAB/Simulink
Lecture 162 Practical transformer Vs. Ideal transformer MATLAB/Simulink
Lecture 163 No load test of 3-ph transformer MATLAB/Simulink
Lecture 164 Short circuit test of 3-ph transformer MATLAB/Simulink
Section 17: Course Exam
Electrical engineering students having passion to learn about electrical transformers from scratch,Engineers and Professionals who work in the Transformer supplier/vendor side,Technicians, Electricians, and Supervisors who want to design, maintain, commission or do anything with transformers
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