MIEngineer
Member
- Location
- Michigan
Hello All,
I have a small 1500VA APC UPS that has been reporting overvolages periodically, line voltage reading approx. 129V on 120V supply. There is no set time when this happens. A couple of weeks ago it was getting this about 5 times a day, now it's down to once per day, usually in the morning 6a-7a. These can last as long as 20 minutes, when it was happening often or as short as 4 seconds, more recently. Voltage sags I can pretty easily understand; motors, etc. Does anyone know of a possible approach to find out where the problem is? This is a small building mostly office and a service small garage.
Thanks for any help.
I have a small 1500VA APC UPS that has been reporting overvolages periodically, line voltage reading approx. 129V on 120V supply. There is no set time when this happens. A couple of weeks ago it was getting this about 5 times a day, now it's down to once per day, usually in the morning 6a-7a. These can last as long as 20 minutes, when it was happening often or as short as 4 seconds, more recently. Voltage sags I can pretty easily understand; motors, etc. Does anyone know of a possible approach to find out where the problem is? This is a small building mostly office and a service small garage.
Thanks for any help.