#TYPES_OF_TRANSFORMER #COMPARISON_CORE_SHELL_TYPE_TRANSFORMER #CLASSIFICATION_OF_TRANSFORMER #COMPARISON BETWEEN CORE AND SHELL TYPE TRANSFORMER #CORE TYPE TRANSFORMER #SHELL TYPE TRANSFORMER #BASIC ELECTRICAL ENGINEERING #SINGLE PHASE TRANSFORMER #Topic - ELECTRICAL TRANSFORMER ~ Link of all sessions are. DAY 1 (Need/Definition) https://youtu.be/BvaykFJ_NoE DAY 2 (Working principle and Construction) https://youtu.be/06rgxocihaM DAY 3 (EMF equation and Turns Ratio) https://youtu.be/g7e5xBPmv3Y DAY 4 (Classification of Transformer) https://youtu.be/6NP5L4MlvY4

1. TYPES OF TRANSFORMER
COMPARISON CORE & SHELL
ELECTRICAL
TRANSFORMER
Prof.Prasant Tiwari

2. ELECTRICAL TRANSFORMER
Transformer Syllabus
 Definition/Need of transformer
 Principle of Operation
 Construction
 EMF Equation
 Transformation Ratio
 Classification of Transformer
 Comparison between core & shell type transformer
 Equivalent Circuit
 Losses in a Transformer
 Efficiency

3. CLASSIFICATION OF TRANSFORMER
Berry Type

4. CLASSIFICATION OF TRANSFORMER

5. CORE TYPE TRANSFORMER
Single Phase Core Type
Single Phase core Type
Three Phase Core Type
 Only Two Limbs, Widths of Limbs
are equal.
 One Window.
 Low voltage winding near to core to
reduce amount of insulation.
 ½ LV and 1/2 HV windings are
wound on both limbs.
 Core is surrounded by windings
Three Phase Core Type
 Three Limbs, Widths of all Limbs
are equal.
 Two Window.
 Low voltage winding near to core to
reduce amount of insulation.
 Core is surrounded by Winding

6. SHELL TYPE TRANSFORMER
 Three Limbs in 1-phase shell type
transformer, Widths of central Limbs
double to side limbs.
 Winding is wound on central limb
 Two Window in 1- phase and 6 window in 3-
phase.
 Low voltage winding near to core to reduce
amount of insulation.
 Windings is surrounded by Core
Single Phase Shell Type
Single Phase Shell Type
Three Phase Shell Type

7. CORE AND SHELL TYPE OF TRANSFORMER
Single Phase Single Phase

8. COMPARISION BETWEEN CORE & SHELL TYPE OF TRANSFORMER
1. Winding Surrounds the core.
2. Core is sandwiched between
winding
3. Width of all limbs are equal
4. Equal flux setup in all limbs.
5. Window- 1 in single phase
transformer
2 in three phase
transformer
6. Cylindrical Winding is used
7. Easy to repair
8. Construction is easy.
1. Core Surrounds the windings
2. Winding is sandwiched between the Core
3. Width of Central limb is double to side
limbs.
4. Double flux setup in central limb to side
limbs
5. Window- 2 in single phase transformer
6 in three phase transformer
6. Sandwich type winding used.
7. Difficult to repair
8. Construction is difficult.
9. Rate of heat dissipation is low
Single Phase Core Type Single Phase Shell Type