The features of the Kaplan Hydro Turbines (Propeller Turbines):

They operate in a head range of 3 meters to 30 meters and are primarily used for electrical power production. The power output ranges from 160KW to 20000KW, Runner diameters are between 0.6 and 3 meters. The speed range of the turbine is from 60 to 750 rpm.

* The propeller type is with a vertical axle and fixed runner, blade angle can not be changed during operation mode, the efficiency curve is steep and this type is generally suitable for power station that has water head with slight change or its operating units can be adjusted according to actual load change.
* The Kaplan type is with adjustable runner controlled by oil servomotor and moved according to the load/head change to ensure higher average efficiency, the efficiency of some Kaplan turbine is higher than 94%.

ADDNEW's Kaplan Hydro Turbines (Propeller Turbines) is widely used in hydro power stations for the small load and water head changing or low head.