Transformers in Electrical Engineering Study Material

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Transformers in Electrical Engineering – Study Material

One of the main advantages of AC generation over DC generation is that the alternating voltage can be increased or reduced, as per our requirement, very easily. This job is done by a transformer. When the voltage is increased, it is called a step-up transformer. When the voltage is reduced, it becomes a step-down transformer.

Transformers – Study Material

Synopsis

  • Transformers
  • Classification
  • Ideal Transformer
  • Transformer on Load

Transformers:

  • One of the main advantages of AC generation over DC generation is that the alternating voltage can be increased or reduced, as per our requirement, very easily. This job is done by a transformer. When the voltage is increased, it is called a step-up transformer. When the voltage is reduced, it becomes a step-down transformer.

Classification:

  • Duty they perform
  • Construction
  • Voltage Output
  • Application
  • Cooling
  • Input Supply

Ideal Transformer:

  • It has the following properties.
    1. No winding resistance i.e. purely inductive.
    2. No magnitude leakage flux.
    3. No I2R loss i.e. no copper loss.
    4. No core

Transformer on Load:

  • The flux passing through core is same as that no load i.e. flux is constant at no-load as well as loaded condition. That is why transformer is also called a constant flux apparatus.
  •  The total primary current (I1) will be vector sum of Io and I21.

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TNEB TANGEDCO AE Basic Engineering Study Materials download 

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1 COMMENT

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