Further to ups and small genny output?
Chris - Most things seem to work off the gen o.k., but the battery charger for the ups does not seem to like the genny output.
Been electrical all my life (well, 54 years of it, anyway!) but this has me thinking back to sine waves and chopped waves, square waves etc etc and my old brain has little grey areas on rectifiers and ups inverters!!
Will be very difficult to pick a best answer when I get round to that. I don't normally ask questions (to keep my points up) but this one had to be asked! Thanks again, all!
Answer:
The answer you got about checking the genny output sould help, other than that you should try a simple method of ellimnation. Does the charger work from the mains supply and if so does it run the inverter happily?
If so, there is either a problem with your genny, or, your battery charger is too hi tech, with a state of the art power supply! Try using a cheaper more basic model. Can't think of anything else, good luck.
ok...shouldnt you be baking cookies for your grandchildren
Have you considered using a 1:1 transformer to smooth the output?
Only seen this page so I dont know if its been suggested already.
If you could tell us the make and model of the UPS and also the change over configuration from the mains to the genny supply.
If the UPS is automatically changing from primary to secondary supply then it is quite common for the charger not to work from the secondary supply.
I think Casper may be on the right lines, several manufactures do this to protect the sensitive electronics in the UPS.
Have you checked that there is a supply to the mains terminals on the charger board?
I have come across this before and solved the problem by dual feeding the battery power supply. You need to install two relays, one for each feed with the one in the mains supply fed by the genny and vice versa.
I know that you could also use one change over relay but it is much safer to have a belt and braces.
Hope this helps.
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