salient pole การใช้

The underground power station generates power by two vertical units comprising Francis turbines and salient pole generators and has an installed capacity of.
What type of generator is suitable ( asynchronous ) and what type of rotor ( squirrel-cage rotor, wound rotor, salient pole rotor or cylindrical rotor )?
The generators are vertical shaft, salient pole, air cooled units each having 12 electromagnetic poles weighing 10 tonnes each, producing a terminal voltage of 18 kV, synchronous speed is 500 rpm.
Within the Hawker Siddeley Group the company manufactured a vast range of electrical products including; turbo-generators, salient pole machines, induction motors, traction motors and generators, traction locomotives, switchgear, transformers and fuses.
If a conventional squirrel-cage rotor has flats ground on it to create salient poles and increase reluctance, it will start conventionally, but will run synchronously, although it can provide only a modest torque at synchronous speed.