The MCC-L starters will be reallocated to feed the equipment for Digesters 1 and 2. MCCs and switch gear will be located indoors. Liquid filled transformers and primary selector switches will be located outdoors. Switch gear and MCCs will be equipped with an electronic monitoring system. The instrumentation and control system includes facilities to support the Stage 4 expansion.
Instrumentation is heavy-duty industrial quality type.
Instruments have been selected for high reliability and minimization of maintenance. New MCCs will be provided with OPTO22 microprocessors to minimize field wiring. New instrumentation and final control elements will be wired to local microprocessors. Local control stations have been provided, adjacent to process equipment, for maintenance and for microprocessor downtime. New microprocessors will be connected to the plant s fiber optic data highway.