The load current is inversely proportional to the power factor, if power is constant
Lower the power factor, higher is the load current.
kVA rating of the equipment is inversely proportional to power factor.
The smaller the power factor, the larger is the kVA rating.
Therefore, at low power factor, the kVA rating of the equipment has to be made more, making the equipment larger and expensive.
To transmit or distribute a fixed amount of power at constant voltage, the conductor will have to carry more current at low power factor. This necessitates large conductor size.
The large current at low lagging power factor causes greater voltage drops in alternators, transformers, transmission lines and distributors. This results in the decreased voltage available at the supply end.
Rank - Windfarm name - Capacity
1 - Muppandal windfarm - 1500 MW
2 - Jaisalmer Wind Park - 1064 MW
3 - Brahmanvel Wind Farm Dhule - 964 MW
4 - Damanjodi Wind Farm - 99 MW
5 - Tuppadahalli Wind Farm - 56.1 MW
Buchholz relay is gas operated relay.
It will operate when internal fault occurs in transformer.
It is placed between tank to main conservator.
It has two contacts trip and alarm.
Use of Buchholz relay in distribution transformer is not economical.