Electrical and Instrumentation Engineering: Unit I: Transformer

Classification of Transformer

Home | Department: ECE Department | Ist Year | Subject: Electrical and Instrumentation Engineering |

Transformers are classified on the basis of: (i) Based on Duty they Perform, (ii) Based on Construction, (iii) Based on Voltage Output, (iv) Based on Applications, (v) Based on Cooling, (vi) Input Supply

CLASSIFICATION OF TRANSFORMERS

Transformers are classified on the basis of:

(i) Based on Duty they Perform:

i. Power Transformer - for transmission and distribution purposes.

ii. Current Transformer - instrument transformer. (To measure current value).

iii. Potential Transformer - instrument transformer. (To measure voltage value).

(ii) Based on Construction:

i. Core Type Transformer.

ii. Shell Type Transformer.

iii. Berry Type Transformer.

(iii) Based on Voltage Output:

i. Step Down Transformer (Higher level to lower level).

ii. Set Up Transformer (Lower level to higher level).

iii. Auto Transformer (Can be varied from "0" to rated value).

(iv) Based on Applications:

i. Welding Transformer.

ii. Furnace Transformer.

(v) Based on Cooling:

i. Duty Type Transformer (Air Natural/Air Blast).

ii. Oil Immersed.

(a) Self cooled

(b) Forced air cooled

(d) Forced oil cooled.

(vi) Input Supply:

i. Single Phase Transformer.

ii. Three Phase Transformer.

(a) Star-Star

(b) Star-Delta

(d) Delta-Star

(e) Open-Delta

(f) Scott-Connection.

Electrical and Instrumentation Engineering: Unit I: Transformer : Tag: : - Classification of Transformer

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Electrical and Instrumentation Engineering: Unit I: Transformer

Introduction of Transformer

Working Principle of Transformer

Classification of Transformer

Construction of Transformer - Components, Working Principle

Elementary Theory of an Ideal Transformer

EMF Equation of a Transformer - Derivation

Transformation Ratio - Solved Example Problems

Accounting for Finite Permeability and Core Loss - Transformer On Load and No Load with Solved Example Problems

Per Unit Representation of Transformer - Equivalent Circuit

Shifting Impedance in a Transformer - Equivalent Circuit, Solved Example Problems

Equivalent Circuit of a Transformer

Transformer Testing - with Solved Example Problems

Voltage Regulation of Transformer

Transformer Efficiency

Three Phase Transformer - Working Principle, Construction, Connection Types, Phasor diagram, Advantages, Disadvantages, Applications, Solved Example Problems

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