Hi everyone.
I'm a new user of the software and I'm currently try to model an instant load rejection case for a Francis turbine.
When I run the transient analysis I get the error message "Turbine calculations do not converge. Check electrical torque or four quadrant curve values". I selected the four quadrant curve (between the three possible choices) according to the specific speed obtained from the manufacturer data, so I'm pretty sure it's right.
Any suggestion?
Answer Verified By: Carlo Rossi