Transcript SEMINAR REPORT ON GAS INSULATED TRANSFORMER

SEMINAR REPORT ON
“GAS INSULATED
TRANSFORMER”
www.fakengineer.com
SF6 GAS INSULATED
TRANSFORMER
EMPLOYS SF6 GAS
INSTEAD OF THE
CONVENTIONAL OIL
BOTH AS AN
INSULATING AND
COOLING AGENT.
CONTENTS
SF6---AN OVERVIEW
APPLICATIONS OF A GAS INSULATED
TRANSFORMER
FEATURES OF A GAS INSULATED
TRANSFORMER
LAYOUT
COOLING APPARATUS OF A GAS
INSULATED TRANSFORMER
IMPORTANT ACCESSORIES
CONCLUSION
SF6 – AN OVERVIEW
 SF6 is Sulphur hexafluoride formed by chemical
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reaction of molten sulphur and fluorine.
It is colourless, odourless, nonflammable, noncorrosive and chemically stable.
High dielectric strength.
Quenches arc effectively and has excellent cooling
properties.
Good thermal conductivity and excellent thermal
stability.
It’s not poisonous and eco-friendly.
APPLICATIONS OF SF6 GAS
INSULATED TRANSFORMER
 Hospitals, underground shopping
centers, substations where a high level of
fire safety is required.
 Water treatment plants and hydroelectric
power plants where waterways must be
kept unpolluted.
 Thermal power plants, chemical plants,
public works facilities etc where high
reliability is required.
FEATURES OF A GAS
INSULATED TRANSFORMER
Highly flame resistant and non
explosive.
High resistance to moisture.
Reduced installation space.
High reliability.
Causes no pollution.
Explosion proof tank.
Easy inspection and maintenance work.
LAYOUT OF A GAS
INSULATED TRANSFORMER
THE ACTUAL LAYOUT
COOLING APPATARTUS
 Employs a cooling
medium in liquid phase
such as a Refrigerant
R113 otherwise known as
Trifluorotrichloroethane
or C2F3Cl3.
 SF6 gas is obviously used
as the second cooling
medium.
IMPORTANT ACCESSORIES
DIAL THERMOMETER
PRESSURE GAUGE
TEMPERATURE COMPENSATING
PRESSURE SWITCH
CONCLUSION
 Incessant research and continuous developments
have made construction of large capacity gas
insulated transformer possible.
 With the eco-friendly aspects of SF6 gas and
considering the huge advantages of the gas, long
strides can be made in this regard to further utilize
it and increase the efficiency of the transformer
and making the power system more reliable and
safer.
Thank you for a very patient
hearing.