15 Apr
2011
15 Apr
'11
2:48 p.m.
On 04/15/11 4:38 AM, Howard Fleming wrote:
I have used several Best Ferrups UPSs over the years, other than one that toasted it's transformer, have never had any trouble out of them (just replace the battery every 3 to 4 years....).
They are picky about their input power, do not run not connect them to an auto regulating transformer (not the proper term?), or on the output of other UPSs, it can cause interesting problems...
I don't think they make any FerrUPS anymore. Those were based on a massive ferroresonant transformer which, yes, is very sensitive to the input frequency. Specifically, they don't like generator power, unless it has extremely well regulated frequency output (such as a DC generator with a digital sinusoidal converter)