A generator that uses a hydraulic turbine as the prime mover to convert water energy into electrical energy. ①Rated power: used to indicate the capacity of the hydrogenerator, measured in kilowatts. The rated power divided by the efficiency must not be greater than the maximum power of the turbine shaft.
②Rated voltage: The rated voltage of the hydrogenerator must be determined by technical and economic comparison in collaboration with the manufacturer. The current voltage of the hydrogenerator ranges from 6.3 kV to 18.0 kV. The larger the capacity, the higher the voltage rating. ③Rated power factor: ratio between the rated active power of the generator and the rated apparent power, expressed as cosφn. Hydroelectric plants located further from the load center often use higher power factors. As the power factor increases, the cost of the motor may increase.enter. be slightly reduced. Mainly in order to increase the unit capacity of the hydrogenerator, it is evolving into a giant unit. In order to improve its reliability and durability, many new technologies are adopted in the structure. For example, in order to solve the thermal expansion of the stator, the floating structure of the stator, the oblique support, etc. are used and the rotor adopts a disk structure. In order to resolve stator coil backlash, use spring shims to lower the spacers to prevent wear of the metal bar insulation. Improve the ventilation structure to reduce wind loss and end eddy current losses to further improve unit efficiency.