Thank you guys for all the replies and I'm sorry for the late reply. The thing is I even communicated with manfucatureres about it but no good feedback.
Dear Engineers & Experts ,
We have an area in our power network (380 kV) which confronts a high voltage profile exceeding the operating limits. The only option we have to reduce that voltage level is by de-energizing some 380 kV lines (although we have shunt reactors but not enough) which...