1)TSD-500VA~TSD-10KVA 2)servo motor voltage stabilizer 3)ISO9001,CB 4)Warranty: 2 year, ... accuracy full automatic AC voltage stabilizers is made of regulator,servo motor,automatic control circuit and so in,When the voltage ... efficiency,reliabli performance,and time-delay,over-voltage,etc,the series of stabilizers driven,of general type,the indeel boltage stabilized ...