Mastering Electrical Transformer Fundamentals

Learn Theory and Practical Knowledge from Professionals

What you'll learn
Transformer Basic Principle
Transformer contstruction
Transformer Design
Transformer Parts
Transformer Definition and Uses
Can transformer increase of decrease power?
why high voltages are used to transmit power?
do transformer work on dc, if not what are HVDC transformer used in dc transmission?
What was decisive weapon in winning war from dc system and prevailing of ac system?
Why DC system is coming back?
Generation, transmission, distribution network diagram
Why rating of transformer is given in KVA not kW?
Transformer Symbol
Transformer Basic Diagram
what are primary and secondary windings?
What changes are to be made if the primary and secondary winding?
What us Ferromagnetism, how core act when coil is energized?
Electric field, Magnetic field, Electromagnetic field
Transformer Basic Operating Principle
Self Inductance
Mutual Inductance
Mutual induction n distance of coupling
Coupling Coefficient
Coupling Factor Between Coils
Mutual Inductance Calculation Example No1
How transformer works, how secondary current is reflected to primary on load?
Do Transformer Change frequency?
Leakage flux and reactance of transformer
Transformer Equivalent Circuit Explained
Calculating Voltage at primary and secondary sides considering reactances an
Understanding voltage drop in transformer due to leakage reactance in the lig
Magnetic fringing Effect
Reduction in hotspot temperature by reducing fringing effect in transformer
How to minimize flux leakage
EMF Equation of transformer
Can 50,60Hz transformers be used interchangeably?
Power in single n three phase transformer
Ideal Transformer
Real Transformer
Reflected Load in a Transformer
Types of Transformer
Power and Distribution Transformers
Classification of Transformer as per Cooling System
Oil Filled, Dry Type Transformer, Self and forced cooling
Why Radiators are used in transformer
Instrument Transformer
Voltage Transformer or Potential Transformer
Zig Zag Transformer
Step Up and Step Down Transformer
Isolation Transformer for Safety and reduce voltage spikes
Single Phase and Three Phase Transformer
Power Vs Auto Transformer
Theoretical Vs Practical Transformer
Winding arrangement in transformer, concentric, sandwich or pancake
Core Type and Shell Type Transformers
Type of wire used in transformer
Core Stepping or Cruciform
Feature most important for transformer design
Transformer Voltage Regulation
Transformer Efficiency and all day efficiency
Do high voltage regulation transformer are better
Relationship between Voltage regulation n Z of transformer
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?
Interesting Facts about Percentage Impedance of transformer
Tesla Coil
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 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
Creepage Distance, Clearance Distance and arcing horn
HV bushing maintenance
Rupture Disc
Sudden Oil Pressure Relay
Tap Changers Types and requirements
Make before break patent of onload tap changer by Dr Janson 1927
Tap Changer Winding Arrangements
Off load tap changer
On Load Tap Changer
On Load Tap changer Working
OLTC Sequence of operation in detail
OLTC General Arrangements
What is the basic difference between Transition Resistance and Reactor type
What are the advantages of vacuum type OLTC
What preventive maintenance, measures can be used for improvement in life Pe
Tie In Resistor in Tap Changer
Tap Changer Design Methodologies
Tap Changer Animation
Air Bleeding in Transformer
Test Performed On Transformer
Transformer Turn Ratio Test
Purpose Transformer Open circuit and short circuit test
Transformer Open Circuit Test
Short Circuit Test of Transformer
Impedance Test of Transformer
C and DF or Tan Delta Test of transformer
How to Predict the Result of Tan Delta Testing
Sweep Frequency Response Analysis Test
DC winding Resistance Test
Transformer Demagnetization after Winding Resistance Test
Going Through Transformer FAT Report
Transformer Name Plate
Transformer General Arrangement Drawing
Vector Group and Clock Method
How to draw winding connection if you know vector group
Testing Vector Group By Voltage Method
Transformer Troubleshooting
Preventive Maintenance of transformer
How Transformers are transported
Corona Rings at transformer bushing
Transformer Fire Protection System

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.

1 Transformer Definition and Uses

2 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 back

8 Generation, transmission, distribution network diagram

9 Why rating of transformer is given in KVA not kW?

10 Transformer Symbol

11 Transformer Basic Diagram

12 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 energized

15 Electric field, Magnetic field, Electromagnetic field

16 Transformer Basic Operating Principle

17 Self Inductance

18 Mutual Inductance

19 Mutual induction n distance of coupling

20 Coupling Coefficient

21 Coupling Factor Between Coils

22 Mutual Inductance Calculation Example No1

23 How transformer works, how secondary current is reflected to primary on load?

24 Do Transformer Change frequency

25 Leakage flux and reactance of transformer

26 Transformer Equivalent Circuit Explained

27 Calculating Voltage at primary and secondary sides considering reactance and resistances

28 Understanding voltage drop in transformer due to leakage reactance.

29 Magnetic fringing Effect

30 Reduction in hotspot temperature by reducing fringing effect in transformer

31 How to minimize flux leakage

32 EMF Equation of transformer

33 Can 50,60Hz transformers be used interchangeably

34 Power in single n three phase transformer

35 Ideal Transformer

36 Real Transformer

37 Reflected Load in a Transformer

38 Types of Transformer

39 Power and Distribution Transformers

40 Classification of Transformer as per Cooling System

41 Oil Filled, Dry Type Transformer, Self and forced cooling

42 Why Radiators are used in transformer

43 Instrument Transformer

44 Current Transformer

45 Voltage Transformer or Potential Transformer

46 Zig Zag Transformer

47 Step Up and Step Down Transformer

48 Isolation Transformer for Safety and reduce voltage spikes

49 Single Phase and Three Phase Transformer

50 Power Vs Auto Transformer

51 Theoretical Vs Practical Transformer

52 Winding arrangement in transformer, concentric, sandwich or pancake

53 Core Type and Shell Type Transformers

54 Type of wire used in transformer

55 Core Stepping or Cruciform

56 Feature most important for transformer design

57 Transformer Voltage Regulation

58 Transformer Efficiency and all day efficiency

59 Do high voltage regulation transformer are better

60 Relationship between Voltage regulation n Z of transformer

61 Losses in Transformers

62 Eddy Current Loss

63 Transformer Core Requirements

64 Transformer without core laminations

65 Air Gap Cored Transformer

66 Hysteresis Losses

67 Copper Losses

68 Losses Due to Magnetic leakage, Stray Losses

69 Measures to reduce losses in transformer

70 Which Losses in Transformer are fixed and variable

71 Transformer core Loss Vs Frequency, Flux Density

72 Transformer Core Saturation

73 Over Excitation Protection of Transformer

74 Power transformer design to withstand how much over flux

75 Effect of Over Fluxing in Transformers

76 Transformer Body Earthing

77 Transformer Core and Clamp Grounding

78 Should Transformer Core and Clamp need to be grounded

79 One Vs Several Transformer and Parallels operation of transformer

80 Do Power Transformer be converted to auto transformer

81 Why at least one delta winding is provided in power transformers

83 Interesting Facts about Percentage Impedance of transformer

84 Tesla Coil

85 Parts of Transformer

86 Why Oil is used in power transformers

87 Transformer Polarity

88 How to perform polarity test of transformer

89 Main Tank and Conservator Tank

90 Sealed Tank or hermetically sealed Transformer

91 Silica Gel and Breather

92 Function of Radiator

93 Direction of oil flow in radiator

94 Radiator Thermographic Image

95 Types of Radiators

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

97 Which factor is decisive for max loading capacity of transformer

98 What factor effect most for transformer aging

99 Effect of temperature on paper aging

100 Risks when wet transformer is overheated

101 What is soak test and why it is done

102 Why humming sound is observed in power transformer, Magnetostriction Effect

103 When humming sound of transformer is increased

104 Buchholz Relay

105 Where buchholz relay is installed

106 Buchholz Relay Working Principle

107 Buchholz Functional Check

108 NO contacts of Buchholz Relay

109 Buchholz Bleeding and Test Point

110 Transportation and protection of buchholz relay contact

111 Buchholz internal, view

112 Directional mark on buchholz relay

113 Buchholz gas sampling device

114 Buchholz Manufacturer Operating Details

115 Sudden Oil Pressure Relay

116 Oil and Winding Temperature Indicator

117 Oil Level Indicator

118 Pressure Relief Device

119 Bushing of Transformer and Bushing Test Tap

120 Moisture is worst enemy of bushing

121 Periodical Check and maintenance of the bushing of transformer

122 HV Bushing Inspection glass

123 Creepage Distance, Clearance Distance and arcing horn

124 HV bushing maintenance

125 Rupture Disc

126 Sudden Oil Pressure Relay

127 Tap Changers Types and requirements

128 Make before break patent of onload tap changer by Dr Janson 1927

129 Tap Changer Winding Arrangements

130 Off load tap changer

131 On Load Tap Changer

132 On Load Tap changer Working

133 OLTC Sequence of operation in detail

134 OLTC General Arrangements

135 What is the basic difference between Transition Resistance and Reactor type

136 What are the advantages of vacuum type OLTC

137 What preventive maintenance, measures can be used for improvement in life

138 Tie In Resistor in Tap Changer

139 Tap Changer Design Methodologies

140 Tap Changer Animation

141 Air Bleeding in Transformer

142 Test Performed On Transformer

144 Transformer Turn Ratio Test

145 Purpose Transformer Open circuit and short circuit test

146 Transformer Open Circuit Test

147 Short Circuit Test of Transformer

148 Impedance Test of Transformer

149 C and DF or Tan Delta Test of transformer

150 How to Predict the Result of Tan Delta Testing

151 Sweep Frequency Response Analysis Test

152 DC winding Resistance Test

153 Transformer Demagnetization after Winding Resistance Test

154 Going Through Transformer FAT Report

155 Transformer Name Plate

156 Transformer General Arrangement Drawing

157 Vector Group and Clock Method

158 How to draw winding connection if you know vector group

159 Testing Vector Group By Voltage Method

160 Transformer Troubleshooting

161 Preventive Maintenance of transformer

162 How Transformers are transported

163 Corona Rings at transformer bushing

164 Transformer Fire Protection System

Regards

Elite Engineering

Who this course is for
Students, Engineers, Technicians