Power Generation: Site Design, Installation, and Connection

[Oluwole]

Is there an issue with synchronising 3no. of 150Kva, 0.415KV generators? If there is, kindly advise on the details and how to overcome the concern. Regards

[mikel]

Can be done in theory, depends on how your units are configured to determine is this is easy or will take some additional hardware.

What kind of governors do you have on the units?

Do you want to real power share in droop or isochronus?

What kind of AVR's on the generators?

Do the generators have droop CT's installed?

How do you want to VAR share, droop, cross current or some form of active VAR/PF sharing?

Basler and Woodward (and others) have many excellent references to paralleling, real and reactive power sharing and protection for paralleled units. Maybe you should start there if you are unfamiliar with paralleling generators.

Mike L.

[Oluwole]

Thanks but I am not very exprienced on this. We have recomnded 3 of 150Kva caterpillar (Olympian) generators to be syhchronised for a project.

I was just being informed that this generator cannot be synchronised unless we move to 250Kva and I am trying to find out why. Regards. 

[see-deif]

Oluwole

There could be literally hundreds of reasons, but the primary ones deal with the control system and the generators. This is like asking a priest to explain religion in an email!

Are they the same pitch?

Do the controls have synchronizers? Load/var share controls? Do the AVR's have trim inputs? We need LOTS more info to be of any real assistance. I respect you are new to generators and paralleling, but there are literally weeks of training necessary to do this correctly. You cannot expect us to answer all your questions in one post / thread?  I have been doing this 30 years and I am still learning!

There are good schools available. Check out www.egsa.org. They have classes available. I am sure your local dealer can help, too.

Good luck

Steve