How to calculate that clean water supply in one Day from 150 KLD STP?

When we use PT in HT Panel why the ratio is 11Kv/√3/110v/√3 please explain briefly with suitable formula?

If the load is 10Kw and power factor has to improve from 0.5 to 0.8,how can we select the capacitor rating accordingly.Illustrate by showing formula?

If the capacity of water Tank is 50000 Liters situated at 20 meters height from ground level,What would be the size of pipe and how much USGPH water will be supplied and what will be the motor or pump rating used for this work?Illustrate by showing formula?

In Transformer testing at Shop test we normally test for vector group, open ckt.,short ckt. but what are the other test performed for transformer once it reaches at site.For e.g:if the transformer is dry having rating 1000KVA?

In 1000KVA Transformer why does we connect HT with delta connection and LT with star connection.Illustrate by showing formula?

Tata Motors,

What is the Good Earth resistance value of G.I & Cu. Chemical Earthing & Normal Pipe Earthing?

ABC, Reliance Life Sciences, TCS,