Induction Hydro Generator Control

[dithomas]

I am in need of information concerning the starter and power controler for a 300kW 480 VAC indcution generator system.

The generator will be driven by a hydro turbine and directly connected to the power grid once at synchro speed. The power control must would output s 4-20ma signal to turbine valve.


Dan

 

[mc5w]

One way would be to belt an electric dryer motor to the induction generator. You can use the heater contact in the centrifugal switch to control the contactor. You would just simply not use the motor windings. You would want to set the belt ratio so that the switch close just before reaching synchronous speed to that your induction generator is not going too fast when the contactor closes.

With a little work you could disconnect the start winding contact from the windings and also use that as a control input.