Types of Transformers | Study Guides, Projects, Research Applied Chemistry

Table of Contents

1 Introduction.................................................................................................................................................3

1.1 Working Principle................................................................................................................................ 3

1.1.1 Mutual Inductance........................................................................................................................ 3

1.1.2 Ideal Transformer..........................................................................................................................3

1.1.3 Real Transformer.......................................................................................................................... 3

1.2 Main Types...........................................................................................................................................3

1.2.1 Step-up Transformer..................................................................................................................... 3

1.2.2 Step-down Transformer................................................................................................................ 3

1.3 Transformer Ratios.............................................................................................................................. 3

1.3.1 Turn Ratio..................................................................................................................................... 3

1.3.2 Voltage Ratio................................................................................................................................. 3

1.3.3 Power Ratio...................................................................................................................................3

1.4 Uses and Applications......................................................................................................................3

2 History of Transformer............................................................................................................................... 3

2.1 A.C or D.C........................................................................................................................................... 3

2.2 Need of Transformer............................................................................................................................ 3

2.3 Invention of Transformer..................................................................................................................... 3

2.4 First Commercial Use.......................................................................................................................... 3

2.5 Transformer Development Timeline [13]...............................................................................................3

1830s..................................................................................................................................................... 3

1836..................................................................................................................................................... 3

1876..................................................................................................................................................... 3

1878 -1883............................................................................................................................................. 3

1881..................................................................................................................................................... 3

1880-1882.............................................................................................................................................. 3

1882 -..................................................................................................................................................... 3

1884..................................................................................................................................................... 3

1885..................................................................................................................................................... 3

1886..................................................................................................................................................... 3

Later 1880s............................................................................................................................................ 3

1889..................................................................................................................................................... 3

1891..................................................................................................................................................... 3

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1 Introduction.................................................................................................................................................
- 1.1 Working Principle................................................................................................................................
  - 1.1.1 Mutual Inductance........................................................................................................................
  - 1.1.2 Ideal Transformer..........................................................................................................................
  - 1.1.3 Real Transformer..........................................................................................................................
- 1.2 Main Types...........................................................................................................................................
  - 1.2.1 Step-up Transformer.....................................................................................................................
  - 1.2.2 Step-down Transformer................................................................................................................
- 1.3 Transformer Ratios..............................................................................................................................
  - 1.3.1 Turn Ratio.....................................................................................................................................
  - 1.3.2 Voltage Ratio.................................................................................................................................
  - 1.3.3 Power Ratio...................................................................................................................................
  - 1.4 Uses and Applications......................................................................................................................
2 History of Transformer...............................................................................................................................
- 2.1 A.C or D.C...........................................................................................................................................
- 2.2 Need of Transformer............................................................................................................................
- 2.3 Invention of Transformer.....................................................................................................................
- 2.4 First Commercial Use..........................................................................................................................
- 2.5 Transformer Development Timeline [13] ...............................................................................................
  - 1830s.....................................................................................................................................................
  - 1836.....................................................................................................................................................
  - 1876.....................................................................................................................................................
  - 1878 -1883.............................................................................................................................................
  - 1881.....................................................................................................................................................
  - 1880-1882..............................................................................................................................................
  - 1882 -.....................................................................................................................................................
  - 1884.....................................................................................................................................................
  - 1884.....................................................................................................................................................
  - 1885.....................................................................................................................................................
  - 1885.....................................................................................................................................................
  - 1886.....................................................................................................................................................
  - Later 1880s............................................................................................................................................
  - 1889.....................................................................................................................................................
  - 1891..................................................................................................................................................... - 1891..................................................................................................................................................... - 1880s - Today.........................................................................................................................................
3 Working of Transformer.............................................................................................................................. - 3.1 Construction......................................................................................................................................... - 3.1.1 Core Construction......................................................................................................................... - 3.1.2 Winding Arrangements................................................................................................................. - 3.2 Working................................................................................................................................................
4 Types of Transformer.................................................................................................................................. - 4.1 On the Basis of Construction............................................................................................................... - 4.1.1 Core Type Transformer................................................................................................................. - 4.1.2 Shell Type Transformer................................................................................................................
- 4.2 On the Basis Their Purpose.................................................................................................................. - 4.2.1 Step up Transformer...................................................................................................................... - 4.2.2 Step down Transformer.................................................................................................................
  - On the Basis of Type of Supply.................................................................................................................
References:.....................................................................................................................................................

Hysteresis losses due to nonlinear application of the voltage applied in the transformer core, and
Eddy current losses due to joule heating in the core that are proportional to the square of the transformer's applied voltage.

1.2 Main Types

Mainly transformers are of two types based on their ability to increase or decrease the voltage.

1.2.1 Step-up Transformer

On a step-up transformer there are more turns on the secondary coil than the primary coil. The induced voltage across the secondary coil is greater than the applied voltage across the primary coil or in other words the voltage has been “stepped-up”.

1.2.2 Step-down Transformer

A step down transformer has less turns on the secondary coil that the primary coil. The induced voltage across the secondary coil is less the applied voltage across the primary coil or in other words the voltage is “stepped-down”. [6]

[7]

1.3 Transformer Ratios

1.3.1 Turn Ratio

Ratio of the number of turns in the secondary winding to the number of turns in the primary winding of a transformer. [8]

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Table of Contents

1.3.1 Turn Ratio