Electrical & Instrumentation

This is what qualified electrical engineers get paid to do...

So either you are an unqualified electrical engineer or you are saying you don't want to pay for the service, you want someone to do it for free. Good luck with that.

There are many threads available related to this topic in CR4. You can search and look into them. Here are some of them that I can remember:

http://cr4.globalspec.com/thread/54230

http://cr4.globalspec.com/thread/53560

- MS

Search for available resource in this forum i bet you will get it.

It is not just calculation for reactive power

1 Configuration of system

2 desired power factor calculation you can see schenider or GE ABB lit

3 proper selection according to temp harmonics protection -----

you can also use some power system sw to simulate the condition

Call a capacitor bank manufacturer/supplier to visit your site and study the set up.If necessary ask him to connect a digital power analyser which can record variation of I,V,pf,VAr,W.VA harmonics etc during the day and record these parameters and he will recommend a capacitor bank,filter,surge protector etc to you. Installing for individual motors may not be economical.

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Yep. Get suppliers to do the work on the prospect of sales. Nothing wrong with that!