... 50%load,75% load,100% load,110% load and all protection fuctions (over speed, high water temperature, low oil pressure, ... / auto start 5) Monitoring meters and control switches 6) Protection provided for short, over-current, over-speed, high water temperature ... bearing 2) AVR self-regulated, voltage regulation rate 1% 3) IP21 protection grade 4) Class H insulation 5) Radio interference restraining ...