Mastering Electrical Transformer Fundamentals Part 4

Learn from Professionals, Electrical Power Engineering

What you'll learn
Parts of Transformer
Why Oil is used in power transformers
Transformer Polarity
How to perform polarity test of transformer
Main Tank and Conservator Tank
Sealed Tank or hermetically sealed Transformer
Silica Gel and Breather
Function of Radiator
Direction of oil flow in radiator
Radiator Thermographic Image
Types of Radiators
Types of Cooling, Why Two ratings are given at name plate of transformer
Which factor is decisive for max loading capacity of transformer
What factor effect most for transformer aging
Effect of temperature on paper aging
Risks when wet transformer is overheated
What is soak test and why it is done
why humming sound is observed in power transformer, Magnetostriction Effect
When humming sound of transformer is increased
Buchholz Relay
Where Buchholz relay is installed
Buchholz Relay Working Principle
Buchholz Functional Check
NO contacts of Buchholz Relay
Buchholz Bleeding and Test Point
Transportation and protection of Buchholz relay contact
Buchholz internal, view
Directional mark on Buchholz relay
Buchholz gas sampling device
Buchholz Manufacturer Operating Details
Sudden Oil Pressure Relay
Oil and Winding Temperature Indicator
Oil Level Indicator
Pressure Relief Device
Bushing of Transformer and Bushing Test Tap
Moisture is worst enemy of bushing
Periodical Check and maintenance of the bushing of transformer
HV Bushing Inspection glass
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 1:1 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 transformer81 Why at least one delta winding is provided in power transformers83 Interesting Facts about Percentage Impedance of transformer84 Tesla CoilTopics covered in Part 4:85 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 glassTopics covered in Next parts:123 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: Parts of Transformers

Lecture 2 Parts of Transformers

Section 3: Transformer Polarity

Lecture 3 Transformer Polarity

Section 4: How to perform polarity test of transformer

Lecture 4 How to perform polarity test of transformer

Section 5: Main Tank and Conservator Tank

Lecture 5 Main Tank and Conservator Tank

Section 6: Sealed Tank or hermetically sealed Transformer

Lecture 6 Sealed Tank or hermetically sealed Transformer

Section 7: Silica Gel and Breather

Lecture 7 Silica Gel and Breather

Section 8: Function of Radiator

Lecture 8 Function of Radiator

Section 9: Direction of oil flow in radiator

Lecture 9 Direction of oil flow in radiator

Section 10: Radiator Thermographic Image

Lecture 10 Radiator Thermographic Image

Section 11: Types of Radiators

Lecture 11 Types of Radiators

Section 12: Types of Cooling, Why Two ratings are given at name plate of transformer

Lecture 12 Types of Cooling, Why Two ratings are given at name plate of transformer

Section 13: Types of Cooling, Why Two ratings are given at name plate of transformer

Lecture 13 Types of Cooling, Why Two ratings are given at name plate of transformer

Section 14: Which factor is decisive for max loading capacity of transformer

Lecture 14 Which factor is decisive for max loading capacity of transformer

Section 15: What factor effect most for transformer aging

Lecture 15 What factor effect most for transformer aging

Section 16: Effect of temperature on paper aging

Lecture 16 Effect of temperature on paper aging

Section 17: Risks when wet transformer is overheated

Lecture 17 Risks when wet transformer is overheated

Section 18: What is soak test and why it is done

Lecture 18 What is soak test and why it is done

Section 19: why humming sound is observed in power transformer, Magnetostriction Effect

Lecture 19 Why humming sound is observed in power transformer, Magnetostriction Effect

Section 20: When humming sound is observed in power transformer is increased?

Lecture 20 why humming sound is observed in power transformer, Magnetostriction Effect

Section 21: Buchholz Relay

Lecture 21 Buchholz Relay

Section 22: Where buchholz relay is installed

Lecture 22 Where buchholz relay is installed

Section 23: Buchholz Relay Working Principle

Lecture 23 Buchholz Relay Working Principle

Section 24: Buchholz Functional Check

Lecture 24 Buchholz Functional Check

Section 25: NO contacts of Buchholz Relay

Lecture 25 NO contacts of Buchholz Relay

Section 26: Buchholz Bleeding and Test Point

Lecture 26 Buchholz Bleeding and Test Point

Section 27: Transportation and protection of buchholz relay contact

Lecture 27 Transportation and protection of buchholz relay contact

Section 28: Buchholz internal, view

Lecture 28 Buchholz internal, view

Section 29: Directional mark on buchholz relay

Lecture 29 Directional mark on buchholz relay

Section 30: Buchholz gas sampling device

Lecture 30 Buchholz gas sampling device

Section 31: Buchholz Manufacturer Operating Details

Lecture 31 Buchholz Manufacturer Operating Details

Section 32: Sudden Oil Pressure Relay

Lecture 32 Sudden Oil Pressure Relay

Section 33: Oil and Winding Temperature Indicator

Lecture 33 Oil and Winding Temperature Indicator

Section 34: Oil Level Indicator

Lecture 34 Oil Level Indicator

Section 35: Pressure Relief Device

Lecture 35 Pressure Relief Device

Section 36: Bushing of Transformer and Bushing Test Tap

Lecture 36 Bushing of Transformer and Bushing Test Tap

Section 37: Moisture is worst enemy of bushing

Lecture 37 Moisture is worst enemy of bushing

Section 38: Periodical Check and maintenance of the bushing of transformer

Lecture 38 Periodical Check and maintenance of the bushing of transformer

Section 39: HV Bushing Inspection glass

Lecture 39 HV Bushing Inspection glass

Students, Engineers, Technicians