... by DSP; High efficiency > 92% GP33-160Kva 208vThe True Online double conversion technology provides clean and safe energy to all ... fail, Bypass over the limit, critical overload, battery exhausted, low output voltage, high output voltage, DC fuse open, %v ... range, voltage between neutral and ground high, UPS on Bypass mode, Bypass frequency out of range.Bypasssolid state,Overload125% for 10 min, ...