Construction of Francis Turbine

Construction of Francis Turbine Points : Construction of Francis Turbine Francis turbine now a number of direct vanes are set about the circumference of runner. It is encircled by a couple of upper with lower stay rings have continue vanes in among them. Every guide vane is prepared to turn on its pivot centre by help of individual link with lever. Runner is hold by a regulating shaft. Guide vanes function like to engine valves, allow simply necessary amount of water. Runner is enclosed in a spiral casing and scroll casing. Go out end of runner is attached to small end of draft tube. Big end of draft tube is inundated cavernous in tail race. Therefore whole water way right as of head race up to tail race is completely enclosed.