We're dealing with more than trips here. When plant trips it is because of a temporary fault or instability or minor failure. This looks like long term breakdown they know was coming and had patched up to keep going for a while.
This is not the 1st time when a change to Eskom is suggested and president leaves country, Eskom suddenly kneejerks with excuses of maintanance, everything ok..... then suddenly a lots of powerstations at fault -?
It seems the floor is running Eskom at times, like a passenger grabs your steering wheel.
Eskom needs management with technical knowledge urgently to see through the mud on the ground.