[RE-wrenches] 208 V 240 in residential applications
william at millersolar.com
william at millersolar.com
Sun Feb 9 12:20:29 PST 2014
Friends:
I feel sort of stupid asking this, but it has never come up for me before:
I have inherited an off-grid install gone-wrong. The system is 208 three
phase with Sunny Boys and Sunny Islands on a mini grid. It was designed as
three phase. I presume this was to increase capability with stacked SMA
inverters.
Will the household appliances (small cooktop, booster pump, well pump) run
as well on 208 as 240?
I always do my research before wasting all of your time. The web delivered
a lot of "forums" wherein opinions were expressed, but little hard data from
bona fide professionals. I also did some calculations, see below. I
downloaded a manual from a random electric range and saw it was specified as
240 or 208.
Watts
4000
Volts
240
208
Amps
16.67
19.23
% Difference in amps
13.33%
I am fairly comfortable that this is not an issue, but would like some
confirmation. Thanks in advance.
William
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