Some of AEP's (American Electric Power) state estimator experience over a period of thirteen years is reported. The scenarios of several unusual system events are described. Justification for a new estimator, which has been in service for nearly three years and can accommodate measurements other than line flows, is provided. The AEP metering system and specification of measurement weights which support the estimator have been explained. Some recommendations for new features in the state estimator package are given.>
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VanSlyck et al. (1988) studied this question.
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