emergency power generator

For a highly critical life-support application like this, you will need to consult some specialists. It would take many pages to spell all of this out, which is not readily suited for semi-informal forums such as here. Much of the answer will also depend on local code requirements.

Hire a qualified electrical contractor. If it's not done right and people die, you can sue him.

The emergency diesel generator kva can be calculated by getting the total hospital load which include all hospital ectronic and electrical equipment of which the A/Cs and electric motors are inclusive.

When u get your total load in kw,using kw=√3vicosφ,if by calculation,find your i(current) value,where v is your voltage and √3 is determining factor for a three phase network supply system and cosφ is your power factor.Use kva=√3vi to calculate your emergency diesel generator apparent power rating(KVA) required for the hospital.Further step up this kva value by a 25% margin to take care of unneccessary overloading in the hospital.

Makesure u buy a good emergency diesel generator from well known names like caterpillar,cummins,mitsubishi etc.Also ensure that in the installation,u follow appropriate regulations or local regulations to ensure safety.

If u are not qualified enough to handle the project,get qualified or professional personnel to handle it while u learn from them.

Patrick Whowha

I would contact the generator supplier...they will be able to help with sizing by a site survey and probably current electric bills.