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So I have this theoretical gen-set consisting of a petrol engine directly coupled to a synchronous generator. There are no electrical protections on the gen-set.
I connect the generator to the "grid" (my home DB) through a switch. The engine is not running and ignition is off. I flip the switch with the engine switched off. By my understanding, the generator will go into motoring mode, act like a starter motor, and start turning the engine until it is running at grid frequency, and in-phase - thus synchronised. I now switch on the ignition of my engine and introduce fuel, and as the engine torque output increases, the generator goes into generating mode and I am now putting power into the "grid", without any complex synchronizing controls.
As long as I do not put more power into the generator than it's rated power, and as long as I stay connected to the grid, the set should not over-speed and produce slip.
Does this make sense?
I connect the generator to the "grid" (my home DB) through a switch. The engine is not running and ignition is off. I flip the switch with the engine switched off. By my understanding, the generator will go into motoring mode, act like a starter motor, and start turning the engine until it is running at grid frequency, and in-phase - thus synchronised. I now switch on the ignition of my engine and introduce fuel, and as the engine torque output increases, the generator goes into generating mode and I am now putting power into the "grid", without any complex synchronizing controls.
As long as I do not put more power into the generator than it's rated power, and as long as I stay connected to the grid, the set should not over-speed and produce slip.
Does this make sense?