Currently, I have a Kohler generator that I would like to utilize at a lift station for back up emergency power. It is a 120/240 3 phase 60kw 180 amp generator with a 175 amp breaker. I would like to know if I could safely downsize the breaker to 100 amps at the generator. The reason is cost effectiveness. I have cabling available that would effectively run the 100amp manual transfer without having to run new wiring/sub panel...etc. Cross reference to Kohlers tech support and awaiting their thoughts. But I value the input here.
If I were Kohler support I would be somewhat intregued at your request. If I were to understand your concern correctly I would as what is the issue?
It is somewhat difficult to address your question. Should it be assumed that the generator is way oversized for the load to be served ?
Think of the generator as if it were a utility. A utility has a tremendous capability of delivering power and yet we size a service and conductors to serve the load.
So what if a generator is oversized. I'm sure that so have sized you conductors to serve you load and then protected the conductors with the suggested 100a breaker Other that the generator being needlessly oversized and more expensive that a generator sized to serve you load I do not see an issuer.