u.p.s.

[brightspark2010]

Can a ups beconnected onto the load of a ups saw this today and someone said that they thought they may interfere with each other i dont know much about them really.

Any ideas?

 

[DurhamSparky]

sorry you have lost me!!

a UPS works alongside mains incoming power!! its effectively a big bank of batteries that in the event of power failure goes through an inverter to convert DC-AC and then through a transfer switch to supply juice for a nominal time!

so connecting a UPS to a UPS pretty much defeats the object of what its doing and would never see power loss and thus would just continue to draw current from the downstream UPS

 

[plugsandsparks]

There are many different types and purposes for UPS so hard to give a defintive answer. I can only assume you want to put them in series because you have a very large current but short duration UPS for small breaks and brown outs and the like and say one or two smaller ones that provide low current but for a much longer duration say computers and the like.
I cannot see why plugging one into the supply of the other would be an issue, afterall for the upstream UPS its just a load and presumably when the upstream eventually drops out the downstream can continue for a longer time.
Best to ask the manufacturers if you think its a problem.

 

[Marvo]

If the first UPS has a pure sine output I don't think they'd 'interfere' with each other. You have me stumped trying to think of an application that would require this kind of configuration though.

 

[needasparks]

Don't think i understand what the OP is asking or am i reading it wrong. I cannot see the gain if i do have it right.

 

[Marvo]

Yeah, I think I understand what he's asking but the setup doesn't make sense to me either.