[RE-wrenches] 500V "Crowbar"
Travis Knipple
travis at hudsonsolarsolutions.com
Mon Jun 16 13:41:45 PDT 2025
Hi all,
This is a repeated (rephrased) version of a previous question, but I've hit
upon a new application.
I'm looking to retrofit a system from existing SMA Sunny Boy inverters to
work with an ESS System.
My PV Array (~900' from the inverters) is 600V Voc, and the strings are
combined at the Array, so Imp is 24A, Isc is 32A.
Also, important to note is that 1 of my SB7000 inverters is non functional.
So, my options are:
(A) A 500V "Crowbar" or SRC type circuit to limit my Voc, and allow me to
take the array directly to a single MPPT port on a Sol-ark Inverter
Or, use AC-Coupling to the Sol-Ark, then I can...
(B) A new PV Inverter that can handle 600V, 32A (Isc) on a single MPPT Port
(C) A replacement SB7000
(D) Re-pull my strings of wires to something like a Solis PV Inverter
Does anyone know of either:
(A) a Voc limiter?
(B) A PV Inverter with a single MPPT input that can handle 600V, 24A (Imp),
32A (Isc)
or
(C) A source for a replacement SB7000US
--
Travis Knipple
Senior Engineer
Hudson Solar Solutions LLC
Rhinebeck, NY 12572
518-539-8040 x408 | travis at hudsonsolarsolutions.com
PVIP# PV-111821-013612
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