1) A transformer is a static electrical device that transfers energy from one circuit to another through common magnetic fields without changing frequency. It works by using Faraday's laws of induction to induce voltage in a secondary coil when voltage is applied to a primary coil. 2) Transformers use the principle of mutual inductance between two coils separated by an iron core to increase or decrease voltage levels. An alternating current in the primary coil creates a changing magnetic field that induces voltage in the secondary coil. 3) Transformers have various applications including power generation, transmission, and distribution as well as applications in electronics like mobile phone chargers and induction motors. They allow efficient transmission of electrical power over long distances and adaptation of voltages for end

1. Sumeet Wadibhasme

2. What is TRANSFORMER ? C-CUBE

Group of Engineers
 Transformer is a STATIC electric device, which
transforms electrical energy from one electrical
circuit to another electrical circuit by means of
common magnetic field without changing frequency.
 Transformer is the most efficient
electrical device made, it can raise
or lower the voltage.

3. How transformer works? C-CUBE

Group of Engineers
 The transformer works on the two main basic
principle of electricity .
 FARADAY’s 1st law : Whenever flux linking with the
conductor changes emf is induced
in the conductor.
 FARADAY’s 2nd law: The magnitude of the emf induced is
directly proportional to the rate of
change of flux.
Togetherly we call is as “MUTUAL INDUCTANCE”

5. 1. The changing current
in the primary coil, is
usually achieved by applying
an alternating voltage,
resulting in an alternating
current (AC)
AC input
3. The field from the primary coil is
intensified and concentrated (also
referred to as increasing the “flux
linkage”) through the
secondary coil by an iron core
AC output
4.The changing flux through the
secondary coil, induces a
potential difference across the
secondary coil
2. As the alternating current changes
magnitude and direction, a magnetic
field is produced, which changes in a
corresponding manner
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6. What is transformation ratio?

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 As per FARADAY’s 2nd law
emf= n
푑∅
푑푡
Hence more the no. of turns in the winding more will be the emf induced.

7. TYPES OF TRANSFORMER
• 1-PHASE
• 3-PHASE
• DISTRIBUTION
TRANSFORMER
• POWER
TRANSFORMER
• CORE TYPE
• SHELL TYPE
• STEPUP
• STEPDOWN
• ISOLATION
APPLICATION CONSTRUCTION
SERVICE No. of PHASES
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8. CLASSIFICATION ON BASIS OF APPLICATION
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Stepup & stepdown tranformers. Isolation transformer

9. CLASSIFICATION ON BASIS OF SERVICE
POWER TRANSFORMER
DISTRIBUTION TRANSFORMER
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10. CLASSIFICATION ON BASIS OF SUPPLY C-CUBE
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11. APPLICATION OF TRANSFORMER C-CUBE
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 Transformer is used in POWER GENERATION and
TRANSMISSION.

12.  POWER TRANSFORMER is used in generation

plants and substaions.

13. 
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 Transformer used in CRO and all CRT based devices.

14. 
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 Transformer used in SMPS in cars and computers.

15.  TRANSFORMER used in power supplies.
 STEP DOWN transformer is used to lower the 230V -
3 V in mobile and laptop chargers.
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16.  Even transformer principle is used in working of

INDUCTION motor.
ROTATING MAGNETIC FIELD
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17. REFERENCES

 www.slideshare.net/kilobytesumeet/
 www.en.wikipedia.com

18. THANK YOU! C-CUBE
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