Forum Discussion
Jim
Jan 05, 2018Explorer
Here's that schematic of a home built ATS (Automatic Transfer Switch). It can be either a single DPDT, or two SPDT relays with the coils (and only the coils) wired in parallel. They can be 30 amp too if you tend to be frugal with electrical usage. The grounds are just all connected together. I'd recommend using the best high quality parts when connecting things together. As it's wired, the genset has to come up to speed and properly present it's voltage to the relay before it operates. So no delay needed for most applications.
When operating, it's important to note that this is a 'dumb' ATS, not like today's smart devices that sense when the AC voltage passes through ground before it switches so there's never a spark or problems downstream with any live electronic devices like TVs or computers. Just like the old days where you had to shut most stuff down before starting the genset.
And finally, I'm aware the word 'continuous' is spelled wrong on the drawing.
When operating, it's important to note that this is a 'dumb' ATS, not like today's smart devices that sense when the AC voltage passes through ground before it switches so there's never a spark or problems downstream with any live electronic devices like TVs or computers. Just like the old days where you had to shut most stuff down before starting the genset.
And finally, I'm aware the word 'continuous' is spelled wrong on the drawing.
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