(*) The automatic transfer switch (ATS) is an electrical device installed closer to your electrical distribution panel. It connects to the circuits in your electrical panel that you wish to power during an electrical outage. This allows you to power the circuits by connecting the generator to the transfer switch, instead of having to run extension cords to various households.
Connecting a generator to a House Panel
An electric generator is the main equipment for many people's emergency preparedness plans. But how to connect it to the house panel, when the grid is down, is a big question mark. Let’s consider a power outage that lasts for many days. Maintaining submersible pump operating to keep the basement dry is certainly a mandatory requirement. It cannot be done by using an UPS. Maintaining the AC power to freezers, preventing food deterioration, is an important matter as well. If you have found a portable generator, but you are not able to connect it to your house, you will face serious problems especially if you do not have a technical background and the knowledge about electric matter and electrical national codes. Connecting a generator to a house panel is a serious business. Do-it-yourself practice may cause back-feed, which occurs when power goes back down the utility lines. Back-feed can not only damage the generator, but has the potential READ MORE...............
[A] Block diagram without a generator  Mains supply / Mains breaker box  House connection  Your House
[B] Block diagram with a generator  Mains supply / Mains breaker box  House connection  Your House  Standby generator  EVOLVE panel