CHAPTER09 REFERENCES 1. Prabha. Kundoor," Power System Stability and Control" McGraw Hill, Inc.l994 2 BBC Brown Boveri - A technical guide of Relays and Protection Schemes. 3. The lEE - Review volume 43,46 4. Load shedding and Frequency Relaying- E.A.Udren, W.A.Elmore I .,. :~ 50