Generator loss of field study for AEP's Rockport plant

The computed performance of American Electric Power's remotely located 2600 MW Rockport plant after simulated generator loss-of-field (LOF) disturbances to one of its 1300 MW cross-compound units is described. LOF conditions are reviewed, and AEP's experience and practice in dealing with such conditions are examined. The modeling used in the computer simulation analyses is discussed. Two simulation analyses are considered: LOF on a high pressure generator with no prior disturbance and, more briefly, LOF on a reheat turbine generator with no prior disturbance. Studies of potential false operation and plans for future LOF analyses are discussed.>