I just put in a new 220 circuit to run a rackmount UPS for some servers.
However, there are some issues with the ups, and it notes that the input voltage is only 200v, versus the expected 220v.
This plug is the only one present in the circuit, and I am fairly sure it is wired correctly. What could be the cause of the low voltage? Is it something that can be tweaked in the meter by an electrician? Is it something I need to bring up to the electric company?
I also realize it is somewhat normal to have variances in voltage, and shouldn't expect exact numbers. I wouldn't care if my ups didn't seem to. 20v seems like a fairly significant dip in voltage to me anyways though.
I am in a single family style home, 200a service in central PA
Checking across terminals within the panel:
- both leads from breaker read ~113-114v from terminal to neutral bar, despite status of ups (not plugged in, plugged in and off, plugged in and on)
- same reading from plug, except from hot plug to ground
- same readings from other breakers
- same reading directly from hot bar to neutral
- reading from hot to hot on the breaker and plug is 225
So I might actually have a bad ups...