The following videos from BTCInstrumentation demonstrate this succinctly. [1] Synchronizing AC generators -- Part 1 (introduction and sync lamps) [2] Synchron

The following videos from BTCInstrumentation demonstrate this succinctly. [1] Synchronizing AC generators -- Part 1 (introduction and sync lamps) [2] Synchronizing AC generators -- Part 2 (strobe light view) [3] Synchronizing AC generators -- Part 3 (sync and unsync) [4] Synchronizing AC generators -- Part 4 (phase deviation) The first video explains all the concepts and shows a sync, but the later videos bring additional conditions and detail. [1] https://www.youtube.com/watch?v=RGPCIypib5Q https://www.youtube.com/watch?v=RGPCIypib5Q [2] https://www.youtube.com/watch?v=sFohkp2aaU4 https://www.youtube.com/watch?v=sFohkp2aaU4 [3] https://www.youtube.com/watch?v=GRk_qJxaxh8 https://www.youtube.com/watch?v=GRk_qJxaxh8 [4] https://www.youtube.com/watch?v=RT1ySBc-Bls https://www.youtube.com/watch?v=RT1ySBc-Bls