Agree, UPS is a must if you love yr livestock but I think azlindaza case cant resolve by UPS.. Cause trip again even retry until he unplug the tank electric stuff.
Probably, bro azlindaza, able to snap some pics on your setup or brand of pump as case learning purpose. Could it be pump run dry? How long was the Trip? What is yr tank size? Is the main circuit breaker trip or sub-circuit? If purely your pump fault, we expect sub-circuit circuit breaker trip only.
Cheers...