Project Briefs

Hope Creek DCS Feedwater Control System

Objective: Engineering, Construction and Start-up of a DCS Based Feedwater Control System


Project Summary

Hope Creek's existing feedwater control system was a source of difficulty with regards to operation of the plant during start-up, normal and transient operation. Evolutions such as bringing feedpumps online and taking them offline were extremely operator intensive. The system lacked any redundancy and had no inherent diagnostics making troubleshooting difficult. Many system failures resulted in plant trips. In addition, obtaining parts for the system and module repair was becoming more difficult.


Merrimac provided project engineering services and was part of the design team, which included PSEG Power, Foxboro and SAIC engineers. Merrimac worked toward developing the control philosophy for the new system. Merrimac then worked with PSEG and Foxboro engineers on DCS/PLC programming and hardware design utilizing the Foxboro IA system, the platform that replaced the existing equipment.


Merrimac also provided project management services, logic design, system programming, software verification and validation, EMI/RFI analysis, Failure Modes and Effects (FMEA) analysis, installation and start-up support, and system tuning.



• State of the art DCS technology

• Foxboro I/A DCS and HMI programming

• Operator interface re-engineering

• Complete in-service testing capability




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