Mastering Electrical Transformer Fundamentals Part 3

Learn from Professionals, Electrical Power Engineering

What you'll learn
Losses in Transformers
Eddy Current Loss
Transformer Core Requirements
Transformer without core laminations
Air Gap Cored Transformer
Hysteresis Losses
Copper Losses
Losses Due to Magnetic leakage, Stray Losses
Measures to reduce losses in transformer
Which Losses in Transformer are fixed and variable
Transformer core Loss Vs Frequency, Flux Density
Transformer Core Saturation
Over Excitation Protection of Transformer
Power transformer design to withstand how much over flux
Effect of Over Fluxing in Transformers
Transformer Body Earthing
Transformer Core and Clamp Grounding
Should Transformer Core and Clamp need to be grounded
One Vs Several Transformer and Parrallel operation of transformer
Do Power Transformer be converted to auto transformer
Why at least one delta winding is provided in power transformers
How Rated Current of Transformer are calculated
Interesting Facts about Percentage Impedance of transformer
Tesla Coil
Parts of Transformer
Requirements
Eager to learn
Description
Dear Hi,A  transformer is a static machine used for transforming power from one circuit to another without changing the frequency. As there is no rotating or moving parts, a transformer is classified as a static device. Transformer operates on an AC supply. Transformers operate based on the principle of mutual induction.Power transformers are called heart of power system, they are essential part and required for transmission and distribution of power supply.I have prepared this course considering theoretical and practical aspects, you will certainly feel the difference when experience professional is delivering the knowledge. This course consist of 164 Video Lectures and total duration of 11 Hours. This is the most comprehensive training online for transformers.Find below details of topics covered in this training.Topics covered in Part 11 Transformer Definition and Uses2 Can transformer increase of decrease power?3 Do transformer have any rotating part?4 why high voltages are used to transmit power?5 do transformer work on dc, if not what are HVDC transformer used in dc transmission?6 What was decisive weapon in winning war from dc system and prevailing of ac system?7 DC system is coming back8 Generation, transmission, distribution network diagram9 Why rating of transformer is given in KVA not kW?10 Transformer Symbol11 Transformer Basic Diagram12 what are primary and secondary windings?13 What changes are to be made if the primary and secondary winding?14 Ferromagnetism, how core act when coil is energized15 Electric field, Magnetic field, Electromagnetic field16 Transformer Basic Operating Principle17 Self Inductance18 Mutual Inductance19 Mutual induction n distance of coupling20 Coupling Coefficient21 Coupling Factor Between Coils22 Mutual Inductance Calculation Example No123 How transformer works, how secondary current is reflected to primary on load?24 Do Transformer Change frequency25 Leakage flux and reactance of transformer26 Transformer Equivalent Circuit Explained27 Calculating Voltage  at primary and secondary sides considering reactance and resistances28 Understanding voltage drop in transformer due to leakage reactance.29 Magnetic fringing Effect30 Reduction in hotspot temperature by reducing fringing effect in transformerTopics covered in Part 2:31 How to minimize flux leakage32 EMF Equation of transformer33 Can 50,60Hz transformers be used interchangeably34 Power in single n three phase transformer35 Ideal Transformer36 Real Transformer37 Reflected Load in a Transformer38 Types of Transformer39 Power and Distribution Transformers40 Classification of Transformer as per Cooling System41 Oil Filled, Dry Type Transformer, Self and forced cooling42 Why Radiators are used in transformer43 Instrument Transformer44 Current Transformer45 Voltage Transformer or Potential Transformer46 Zig Zag Transformer47 Step Up and Step Down Transformer48 Isolation Transformer for Safety and reduce voltage spikes49 Single Phase and Three Phase Transformer50 Power Vs Auto Transformer51 Theoretical Vs Practical Transformer52 Winding arrangement in transformer, concentric, sandwich or pancake53 Core Type and Shell Type Transformers54 Type of wire used in transformer55 Core Stepping or Cruciform56 Feature most important for transformer design57 Transformer Voltage Regulation58 Transformer Efficiency and all day efficiency59 Do high voltage regulation transformer are better60 Relationship between Voltage regulation n Z of transformerTopics covered in Part 3:61 Losses in Transformers62 Eddy Current Loss63 Transformer Core Requirements64 Transformer without core laminations65 Air Gap Cored Transformer66 Hysteresis Losses67 Copper Losses68 Losses Due to Magnetic leakage, Stray Losses69 Measures to reduce losses in transformer70 Which Losses in Transformer are fixed and variable71 Transformer core Loss Vs Frequency, Flux Density72 Transformer Core Saturation73 Over Excitation Protection of Transformer74 Power transformer design to withstand how much over flux75 Effect of Over Fluxing in Transformers76 Transformer Body Earthing77 Transformer Core and Clamp Grounding78 Should Transformer Core and Clamp need to be grounded79 One Vs Several Transformer and Parallels operation of transformer80 Do Power Transformer be converted to auto transformerTopics Covered in next parts:81 Why at least one delta winding is provided in power transformers83 Interesting Facts about Percentage Impedance of transformer84 Tesla Coil85 Parts of Transformer86 Why Oil is used in power transformers87 Transformer Polarity88 How to perform polarity test of transformer89 Main Tank and Conservator Tank90 Sealed Tank or hermetically sealed Transformer91 Silica Gel and Breather92 Function of Radiator93 Direction of oil flow in radiator94 Radiator Thermographic Image95 Types of Radiators96 Types of Cooling, Why Two ratings are given at name plate of transformer97 Which factor is decisive for max loading capacity of transformer98 What factor effect most for transformer aging99 Effect of temperature on paper aging100 Risks when wet transformer is overheated101 What is soak test and why it is done102 Why humming sound is observed in power transformer, Magnetostriction Effect103 When humming sound of transformer is increased104 Buchholz Relay105 Where buchholz relay is installed106 Buchholz Relay Working Principle107 Buchholz Functional Check108 NO contacts of Buchholz Relay109 Buchholz Bleeding and Test Point110 Transportation and protection of buchholz relay contact111 Buchholz internal, view112 Directional mark on buchholz relay113 Buchholz gas sampling device114 Buchholz Manufacturer Operating Details115 Sudden Oil Pressure Relay116 Oil and Winding Temperature Indicator117 Oil Level Indicator118 Pressure Relief Device119 Bushing of Transformer and Bushing Test Tap120 Moisture is worst enemy of bushing121 Periodical Check and maintenance of the bushing of transformer122 HV Bushing Inspection glass123 Creepage Distance, Clearance Distance and arcing horn124 HV bushing maintenance125 Rupture Disc126 Sudden Oil Pressure Relay127 Tap Changers Types and requirements128 Make before break patent of onload tap changer by Dr Janson 1927129 Tap Changer Winding Arrangements130 Off load tap changer131 On Load Tap Changer132 On Load Tap changer Working133 OLTC Sequence of operation in detail134 OLTC General Arrangements135 What is the basic difference between Transition Resistance and Reactor type136 What are the advantages of vacuum type OLTC137 What preventive maintenance, measures can be used for improvement in life138 Tie In Resistor in Tap Changer139 Tap Changer Design Methodologies140 Tap Changer Animation141 Air Bleeding in Transformer142 Test Performed On Transformer144 Transformer Turn Ratio Test145 Purpose Transformer Open circuit and short circuit test146 Transformer Open Circuit Test147 Short Circuit Test of Transformer148 Impedance Test of Transformer149 C and DF or Tan Delta Test of transformer150 How to Predict the Result of Tan Delta Testing151 Sweep Frequency Response Analysis Test152 DC winding Resistance Test153 Transformer Demagnetization after Winding Resistance Test154 Going Through Transformer FAT Report155 Transformer Name Plate156 Transformer General Arrangement Drawing157 Vector Group and Clock Method158 How to draw winding connection if you know vector group159 Testing Vector Group By Voltage Method160 Transformer Troubleshooting161 Preventive Maintenance of transformer162 How Transformers are transported163 Corona Rings at transformer bushing164 Transformer Fire Protection SystemRegardsElite Engineering

Overview

Section 1: Introduction

Lecture 1 Introduction

Section 2: Eddy Current Loss

Lecture 2 Eddy Current Loss

Section 3: Transformer Core Requirements

Lecture 3 Transformer Core Requirements

Section 4: Transformer without core laminations

Lecture 4 Transformer without core laminations

Section 5: Air Gap Cored Transformer

Lecture 5 Air Gap Cored Transformer

Section 6: Hysteresis Losses

Lecture 6 Hysteresis Losses

Section 7: Copper Losses

Lecture 7 Copper Losses

Section 8: Losses Due to Magnetic leakage, Stray Losses

Lecture 8 Losses Due to Magnetic leakage, Stray Losses

Section 9: Measures to reduce losses in transformer

Lecture 9 Measures to reduce losses in transformer

Section 10: Which Losses in Transformer are fixed and variable

Lecture 10 Which Losses in Transformer are fixed and variable

Section 11: Transformer core Loss Vs Frequency, Flux Density

Lecture 11 Transformer core Loss Vs Frequency, Flux Density

Section 12: Transformer Core Saturation

Lecture 12 Transformer Core Saturation

Section 13: Over Excitation Protection of Transformer

Lecture 13 Over Excitation Protection of Transformer

Section 14: Power transformer design to withstand how much over flux

Lecture 14 Power transformer design to withstand how much over flux

Section 15: Effect of Over Fluxing in Transformers

Lecture 15 Effect of Over Fluxing in Transformers

Section 16: Transformer Body Earthing

Lecture 16 Transformer Body Earthing

Section 17: Transformer Core and Clamp Grounding

Lecture 17 Transformer Core and Clamp Grounding

Section 18: Should Transformer Core and Clamp need to be grounded

Lecture 18 Should Transformer Core and Clamp need to be grounded

Section 19: One Vs Several Transformer and Parallels operation of transformer

Lecture 19 One Vs Several Transformer and Parallels operation of transformer

Section 20: Do Power Transformer be converted to auto transformer

Lecture 20 Do Power Transformer be converted to auto transformer

Section 21: Why at least one delta winding is provided in power transformers

Lecture 21 Why at least one delta winding is provided in power transformers

Section 22: How Rated Current of Transformer are calculated

Lecture 22 How Rated Current of Transformer are calculated

Section 23: Interesting Facts about Percentage Impedance of transformer

Lecture 23 Interesting Facts about Percentage Impedance of transformer

Section 24: Tesla Coil

Lecture 24 Tesla Coil

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