A Presentation on “Types of Transformers” Presented by: Malik Ajmal

2. A Presentation on “Types of Transformers” Presented by: Malik Ajmal BS(IT)-07-12 Presented to: Dr.Tariq Bhatti sb.

3. Transformer • A transformer is a device that transfers electrical energy from one circuit to another through inductively coupled electrical conductors.

4. Types of Transformers: • A wide variety of transformer designs are used for different applications. • Some important types are given as: • Auto-transformer • Poly-phase transormer • Leakage transformer • Resonant transformer • Instrument transformers

5. AUTO-TRANSFORMERS • An autotransformer with a sliding brush contact • An autotransformer has only a single winding with two end terminals, plus a third at an intermediate tap point.

6. POLY-PHASE TRANSFORMER • For three-phase supplies, • A bank of three individual single-phase transformers can be used, • OR all three phases can be made as a single three-phase transformer.

7. LEAKAGE TRANSFORMERS • A leakage transformer,also called a stray-field transformer, • has a higher leakage inductance than other transformers.

8. RESONANT TRANSFORMERS • A resonant transformer is a kind of the leakage transformer. • It uses the leakage inductance of its secondary windings in combination with external capacitors, • To create one or more resonant circuits.

9. INSTRUMENT TRANSFORMERS • Current transformers, designed to be looped around conductor. • A current transformer is a measurement device • provide a current in its secondary coil proportional to the current flowing in its primary.

10. THANKS!!!