Transformer Basics in Tamil
https://youtu.be/yhdFdpPZtjA

Voltage,current-Electrical units in Tamil
https://youtu.be/0WyMTQH6pz8

In this video following topics are explained in Tamil with simple animation
1.Purpose of OLTC
2.On load tap changer working principle
3.OLTC internal parts
Dova
Diverter switch
Tap selector
Transient resistor
4.Types of OLTC
Compartment type
In tank type
Oil and Vacuum,Transient resistance,Reactor type
5.Construction of OLTC
6.OLTC Name plate details
7.Purpose of Diverter switch
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