Hi Scot and Mike,
Yes It is terribly worded - an AHJ could easily read it and come away
with the impression that only the TL and TriPower required the neutral
only for instrumentation and voltage and phase detection - implying the
rest used the neutral for current.
And your right what do the
Mike,
Thanks for posting the note, but I find the wording to be less than fully
clear. According to this note, the "The transformer-less series of inverters
named Sunny Boy TL-US-12, Sunny Boy TL-US-22 and Sunny Tripower
12/15/20/24000TL-US-10 have a neutral connection that is required at
insta
If you only want to change over, why not use a contactor with three poles,
a NO and NC contact? that will switch instantly. Use Utility to power the
coil, it will switch to utility when the power is restored.
On Tue, Nov 26, 2019 at 2:57 AM Jerry Shafer
wrote:
> There is the SMA Automatic transf
Hi Bill,
We just did something like this with a hydro plant and backup solar site.
We ended up using a Kohler RDT transfer switch with the accessory board.
With the accessory board, its possible to adjust down to about ~1 second
transfer, and without the accessory board, its ~3 second transfer. T
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