... , 4. CE, ISO. 300KVA Automatic voltage regulator:1. 300KVA Automatic voltage regulator,2. Automatic voltage regulator,3. Output voltage: 380v+-1%,4. ... current, over temperature, over load, short circuit, and automatic alarmInsulation reactanceAbove 500Vdc 20MΩPressure endurance insulation1800Vac/5Ma/1minuteCooling device ... (W×L×H)1160mm×1910mm×1880mmInside pciture: 300kVA Automatic voltage regulator