3. A transformer is an electrical
device that transfers electrical
energy between two or
more circuits through electrom
agnetic induction
4.
5. Current in the primary will
pass through the laminated
core and secondary winding.
Faraday’s second law of
electromagnetic induction
6.
7. Why the core is laminated?
Why the efficiency is not 100%?
8. DUE TO VARYING MAGNETIC FIELD IN THE
LAMINATED CORE THERE WILL BE GENERATED
A CURRENT KNOWN AS EDDY CURRENT.
GENERATION OF EDDY CURRENT WILL CREATE
HEAT,DUE TO WHICH THERE MIGHT BE SOME
LOSS IN INSULATION OF THE WINDING OR
CAN BE SHORT CIRCUITED.
THAT’S WHY THE CORE IS LAMINATED,TO
AVOID SHORT CIRCUIT.
9. 1.HEAT LOSS
CURRENT+RESITANCE(OF PRIMARY AND
SECONDARY COIL).
2.EDDY CURRENT + RESISTANCE OF IRON
CORE
10.
11. THE SINUSOIDAL MOTION OF THE INPUT
CURRENT MAKES THE MOTION OF DOMAINS
ONCE N POSITIVE DIRECTION AND THEN IN
NEGATIVE DIRECTION.
THERE WILL BE CREATED SOME HEAT LOSS
DUE TO IT.
12.
13.
14. WE SEE HERE THE DIFFERENT LOSSES AND
WHY THE EFFICIENCY OF TRANSFORMER IS
NOT 100%.
THE WORKING OF TRANSFORMER.
REFERENCES- GOOGLE PICS.
