... 4. CE, ISO. 300KVA Automatic voltage regulator:1. 300KVA Automatic voltage regulator,2. Automatic voltage regulator,3. Output ... <1%,6.Isolation transformer output, safe and credible,7.Auto-protection and alarm for output overvoltage, over current ... current, over temperature, over load, short circuit, and automatic alarmInsulation reactanceAbove 500Vdc 20MΩPressure endurance insulation1800Vac/5Ma/ ...