... , 4. CE, ISO. 300KVA Automatic voltage regulator:1. 300KVA Automatic voltage regulator,2. Automatic voltage regulator,3. Output voltage: ... stability≤±0.01%voltage stability≤1%Wave distortion≤2%Reaction timedynamic response quick, when load 0-100% change, ... switch, the electronic circuit to detect over-voltage express .Over voltage, over current, over temperature, over load, short circuit, and automatic ...