If you are installing a permanent standby generator system, consult an expert. Potential problems in addition to the need for a transfer switch include:
- Ground Fault Interrupters (GFI’s) are installed on most portable generators.
- Some generators are rated to only supply 240 volt or 120 volt loads and not both at the same time (120 / 240 rating-center tapped).
Care also needs to be taken in sizing generators. Normally, generators must be oversized to handle the in-rush of a starting motor. A generator would also need to be oversized if there is going to be a lot of electronic load on it. A special concern with electronic loads is the operation of the generator as it runs out of fuel. The internal voltage regulation may not be able to protect electronic equipment connected to the generator.