One of the load shedding method depending upon loss of generation we have adopted is as follows.
The scada system continuously monitors the plant load and the generation. Delta P(mw), a operator settable value is set which is a value of load which system can take in addition to existing load...
I agree with JBD regarding location of voltage sensing PTs to be on line side, which is generally a normal practice.
To add on a few more points:
1) ATS should only happen between two incomers incase of "undervoltage". And also a delay of 1 sec is generally given along with...