CONTROL PHILOSOPHY definition
CONTROL PHILOSOPHY. The following control philosophy is used on individual major components and systems. This control philosophy permits efficient plant operation with one control room operator plus two roving plant operators. Sufficient operator interface devices are provided at the central control room consoles to permit safe startup/operation and rapid operator response to plant anomalies. It shall be necessary for the roving operator to place some auxiliary equipment into operation manually at the equipment location or at a motor control center in order to establish ready-to-start status. The control system provides sufficient protective features to insure safe operation. The system has built-in logic and circuitry to alarm, annunciate and trip as a result of any abnormal operating condition. Logic is employed to provide interlocks wherever it will improve plant availability and will prevent the operator from exceeding design limits. Major safety protection systems are provided independently from the basic control system, such as overspeed trips, reverse current trip of the generator, etc. The use of such protection systems is in accord with accepted power plant practices. Manual trips are provided for all energy input components; e.g., fuel and steam valves.