Microcomputer Hydro Turbine Governor This governor replaces relay or older electronic governors on existing units. It controls guide vane opening and, on Kaplan units, blade angle, using a microcomputer controller with a 6 MPa oil pressure unit. Auto, manual and test modes are available, and setpoint can be adjusted locally or remotely. Selling Points Microcomputer controller. PID control with frequency, power and opening modes, plus a manual backup channel in case the