3 lights out method synchronizing 2 generators

How to parellel 2 generators using the 3 lights out method.

[generatorjohn]

Instead of using the digital fluke try using an analog Simpson meter between each generator with the circuit breaker opened. What you should see is a rise and fall of the voltmeter needle. 0 volts means generators at synchronization and maximum voltage means generators 180 degrees out of phase. I was taught and shown that method 36 years ago.

[ledzeppelin]

Cool video! What happens if you flip the switch and they are too far out of phase? For example, if you flip the switch when the lights are at their brightest, rather than darkest.

[Hoxworldph]

Do you still have the circuit diagram of this video? thank you