Monday, February 4, 2019

SWITHGEAR AND PROTECTION


SWITCH GEAR EQUIPMENT

The devices used for following activities under normal and abnormal conditions in a system are known as switchgear equipment
-          Switching Devices
o   Circuit Breakers
o   Isolators
o   Earth Switch
o   Fuse Switch
o   MCCB
o   MCB

-          Current Interrupting Devices
o   Circuit Breakers
o   Fuse Switch
o   Fuse
o   MCCB
o   MCB

-          Protective Devices
o   LA
o   Relay Circuits
o   Different Types of Relays

-          Regulating Devices
o   AVR
o   Governor
o   COLT (On load tap changer)

-          Measuring Devices
o   Metering Devices
o   CTs’and V Ts’


ADVANTAGES OF ELECTRICAL ENERGY

-          Easy to control
-          Easy to convert to other forms of energy
-          Converting equipment are commonly available in the market

DISADVANTAGES OF ELECTRICAL ENERGY

-          Risk of fire
-          Electrocutions may be possible









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