WELCOME TO PRESENTATION

Hossain Al Kayum

MY presentation Topic are an ideal Transformer and a smart next Generation digital Transformer.

What is a Transformer ???Ans: A Transformer is a static device that

transfer same amount of ac electric power from one electric circuit to another circuit by electromagnetic induction of without change of frequency. There are two kinds of transformers these are-(1)Step Up Transformer :The transformer which converts an electric current of greater strength at a low voltage into an electric current of weaker value at a high voltage is known as step up transformer.

(2)Step down transformer : The transformer which changes the high potential less electric current into low potential much electric current is step down transformer.

Why transformer ?????WHY???

Power transmitted through wires large distances for this reasons we suffer power loss ,due to here we need transformer.

A transformer transmitted both voltage and current .For transmission of electric power over longs distances step up transformer is used . Step down transformer is used for domestic power supply such as radio , television ,tape recorder ,VCR ,VCP , electric watch etc.

RI 2

TRANSFORMER HAS TWO WINDING SIDE: PRIMARY AND SECONDARY WINDINGS

Step Up Transformer

Step Down Transformer

THE OPERATING PRINCIPLE OF A TRANSFORMER

WORKING OF A TRANSFORMER

1. When current in the primary coil changes being alternating in nature, a changing magnetic field is produced

2. This changing magnetic field gets associated with the secondary through the soft iron core

3. Hence magnetic flux linked with the secondary coil changes.

4. Which induces e.m.f. in the secondary.

WHAT IS A SMART TRANSFORMER : A SOLID STATE TRANSFORMER(SST) WITH MANAGERIAL ROLE IN THE ELECTRIC DISTRIBUTION GRID IS GENERALLY CALLED SMART TRANSFORMER.

SOME SMART TRANSFORMER IMAGES

SMART TRANSFORMER FOR DISTRIBUTION SYSTEMSmart transformers work independently to

constantly regulate voltage and maintain contact with the smart grid in order to allow remote administration(if needed),and to provide information and feedback about the power supply and the transformer.

A smart transformer (ST)provides the exact amount of power that is needed , and response instantly to fluctuations within the power grid , acting as a voltage regulator to ensure that the optimized voltage is undisturbed . Smart transformers are programmed to, as a default, provide an voltage optimized power supply that directly addresses their facility’s energy needs.

Smart transformer is better than normal state solid transformer : Because a smart transformer can help large commercial facilities use power more efficiency to save money ,power and go greener and also work independently.

Merits of Smart transformer : Smart transformer receives attention by researchers due to the following advantages:

(1) Smart transformer(ST) controls the bidirectional power transfer between unity grid and microgrid.

(2)ST is able to aggregate information to determine its set point of power exchange.

(3)Sustainable, Reliable, Reduced overall weight and volume.

PROCEDURE OF A TRANSFORMER