... Automatic voltage regulator: 1.IGBT/SPWM technology, 2.Well protection function, 3.18 months warranty, 4. CE, ISO. 300KVA Automatic voltage regulator:1. 300KVA Automatic ... voltage regulator,2. Automatic voltage regulator,3. Output voltage: 380v+-1%, ... over load, short circuit, and automatic alarmInsulation reactanceAbove 500Vdc 20MΩPressure endurance ...