... 1+1 redundancy online design, 0 ms transfer time double electrical isolation TN5000 series UPS for Utility and Power GenTN5000 series UPS ... output (THD<1% liner load), voltage regulation, AC-DC isolation, under/over-voltage conditions, input filtering and overload protection. Features ... for linear load, THD<3% for non-linear load)· Achieve isolation among AC Input, AC Output and DC Input· Soft start ...