Discussion about previous post (Over Frquency happened at a windy winter night)

After I discussed what happened the outage three days ago - the situation I posted previously - I found an explanation for that: -

In winter days , Electrical loads are decreasing here in Egypt especially at night , therefore the frequency increases from 50 HZ .

the Dispatch should decrease the loads of the generating units to limit the decrease of frequency , and the generating unit's Operator should take care of such these situations.

At that night , Turbine's operator should realize the increase of frequency and  the decrease the actual MW , he should switch the turbine control to manual , to limit the decrease of MW , Then he should switch the HPTV to manual and start open it gradually to release the over pressurized steam at HPTV .

The Boiler's operator should maintain the main steam pressure to the actual MW  by the percentage opening of HPTV , therefore the boiler master in that situation will control main steam pressure tracking to the opening of HPTV , then he should try to limit the load as possible away from Fluctuations .

After frequency is settled we can increase the MW and close the HPTV , then switch again the Turbine set and Boiler Master to Automatic Mode.

That is a brief conclusion for what should happened in such that situation.