Electrical Distribution system-Substation, Switch yard equipments and function in Tamil

In this video following topics are explained in Tamil....
1.110/11KV Switch yard equipments and their function with sequence
Isolator
Lightning arrester
potential Transformer
Current transformer
SF6 Breaker
Power Transformer
2.Main substation equipments and their function with sequence
HT busbar panel
VCB-vacuum circuit breaker
APFC-Automatic power factor controller
C&R Control panel
RTCC Remote Tap changer panel
3.Distribution substation equipments and their function
11KV/415V Distribution Transformer
MDB- Main distribution board/ACB-Air circuit breaker
PCC Power control center/MCCB Molded case circuit breaker
PDB Power Distribution board
RPDB Raw power distribution board/ MCB, ELCB
4.Lighting Distribution
MLDB Main Lighting distribution
SLDB Sub lighting distribution board
LDB Lighting distribution
5.Process equipment panel board
motors,starters,VFD
Heaters,RTD,Thermocouple,Temperature controller
instrumentation- PLC,CNC,Sensors,Transducers
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