Voltage
Current and voltage
Watt
KVA
To avoid the growing of plants and for insulation
To support the poles
To support the transformers
To avoid slippery
One
Two
Three
Four
Change AC supply into DC supply
Change DC supply into AC supply
High voltage supply step down into low voltage supply
Low voltage is stepped up into high voltage
Air blast circuit breaker
SF6 circuit breaker
Minimum oil circuit breaker
Bulk oil circuit breaker