The document is a certificate certifying that Ranjan Kumar, a student with ID 14EAIEE079, submitted a satisfactory seminar report on the advanced technology of power transformer protection to earn a Bachelor of Technology degree in electrical engineering from Arya Institute of Engineering and Technology in Jaipur, India. The report was approved for submission under the guidance of Subhash Saini and oversight of Numa M. Thapliyal and Deepak Sharma of the electrical engineering department.

1. CERTIFICATE
This is to certify that the Seminar report for ADVANCE
TECHNOLOGY OF POWER TRANSFORMER
PROTECTION is submitted by RANJAN KUMAR
(14EAIEE079) for the award of degree of Bachelor of Technology
in ARYA INSTITUTE OF ENGINEERING AND
TECHNOLOGY, JAIPUR (Electrical engineering) has been found
satisfactory and is approved for submission.
Mr. SUBHASH SAINI Ms. NUMA M. THAPLIYAL
(SEMINAR GUIDE) (SEMINAR INCHARGE)
AssistantProfessor Assistant Professor
Dept. Of ElectricalEngineering Dept. Of ElectricalEngineering
Mr. DEEPAK SHARMA
(Head of Dept.)
Associate Professor
Dept. Of ElectricalEngineering
DEPARTMENT OF ELECTRICAL ENGINEERING
ARYA INSTITUTE OF ENGINEERING & TECHNOLOGY
SP-40, RIICO INDUSTRIAL AREA, JAIPUR (RAJASTHAN) – 302028

2. ACKNOWLEDGEMENT
I would like to thank Arya institute of engineering and technology for giving me the
opportunity to use their resources & work in a challenging environment. First and foremost,
I take this opportunity to express my deepest sense of gratitude to my guide Mr. Subhash
Saini, Assistant Professor, Arya institute of engineering and technology, Jaipur for his able
guidance during my dissertation. This dissertation would not have been possible without his
help and the valuable time that he has given me amidst of his busy schedule. I would like to
express my deepest sense of gratitude toward Mr. Deepak Sharma, Professor and Head of
department, Ms. Numa M. Thapliyal, Seminar Incharge, Arya Institute of Engineering and
Technology, Jaipur who has been a constant source of inspiration for me throughout in this
report. I would like to thank the faculties and laboratory staff members for their extended
support in completion of my work. I would also like to extend my gratitude to my parents
and friends who have always encouraged and supported me in doing my work.
RANJAN KUMAR
ELECTRICALENGINEERING
14EAIEE079
B. TECH 4th
YR. VIII SEM

3. ABSTRACT
A power transformer is a static electrical device used in electric power systems to transfer
power between circuits through the use of electromagnetic induction. Transformers are
devices that transfer energy from one circuit to another by means of a common magnetic
field. When an alternating current flows in a conductor, a magnetic field exists around the
conductor. If another conductor is placed in the field created by the first conductor such that
the flux lines link the second conductor, then a voltage is induced into the second conductor.
The use of a magnetic field from one coil to induce a voltage into a second coil is the
principle on which transformer theory and application is based. Transformers range in size
from thumbnail-sized used in microphones to units weighing hundreds of tons
interconnecting the power grid. A wide range of transformer designs are used in electronic
and electric power applications. Transformers are essential for the transmission, distribution
and utilization of electrical energy. The system includes facilities for discrimination between
internal fault current and magnetizing inrush current, differential protection, over current
protection, over voltage protection and under voltage protection. In this report, software and
hardware of micro controller based system have been explained and designed. The design
implementation and testing of the system are also presented. Generation of electrical power
in low voltage level is very much cost effective. Theoretically, this low voltage level power
can be transmitted to the receiving end. This low voltage power if transmitted results in
greater line current which indeed causes more line losses. But if the voltage level of a power
is increased, the current of the power is reduced which causes reduction in ohmic or I2R
losses in the system, reduction in cross sectional area of the conductor i.e. reduction in capital
cost of the system and it also improves the voltage regulation of the system. Because of
these, low level power must be stepped up for efficient electrical power transmission. In the
power transformer many types of faults occurring therefore for prevent to these faults we are
using advance technology of power transformer protection like protection of transformer using
microcontroller based relay, protection of transformer using GSM modem, oil level monitor
device and differential protection scheme.