Westinghouse has developed the Advanced Logic System® (ALS®) platform as a new approach to safety-critical control systems. It is a universal platform that targets safety-critical control systems, where reliability and integrity are of the highest importance. The ALS platform is a logic-based platform that does not utilize a microprocessor or software for operation, but instead relies on simple hardware architecture.

The Westinghouse Solid State Rod Control System (SSRCS) has been in operation at many plants for over 30 years. This system has been very reliable but obsolescence concerns are increasing and personnel experience for the analog control system is difficult to maintain in the modern, digital world. The system also has limited diagnostics and can be time consuming to troubleshoot, increasing downtime.

Background Computerized procedures were developed to help operators execute normal and emergency operating procedures. Westinghouse has designed, developed and implemented a datadriven, software-based computerized procedures system (CPS) that guides operators through plant operating procedures. It monitors plant data, processes the data and then, based on this processing, presents the status of the procedure steps to the operator. The system can be used for normal operating procedures, abnormal operating procedures and emergency operating procedures. Computerized procedures allow the operator and computer to complement each other for more accurate and efficient procedural execution.

Analog and digital control systems frequently perform poorly due to improperly selected control setpoints that resulted from on-the-fly tuning. To help address tuning problems, Westinghouse has developed a Nuclear Steam Supply System (NSSS)/Feedwater (FW) control system & plant model for use in modeling evaluations. It can also be used for support of on-site control system tuning. The NSSS/FW control system model has been developed for use with Westinghouse, Combustion Engineering (CE), and non-Westinghouse designed plants worldwide.

Benefits Summary ,The Westinghouse DADS offers these benefits: Minimal installation time (approximately two hours), Fits inside the same footprint as the original DRPI display system using the same interface connections

Since the late 1980s, industry data has consistently identified the feedwater system as one of the top two major system contributors to the number of automatic reactor trips, with poor feedwater control as a significant root cause. In response, Westinghouse has provided leading feedwater control upgrade technology as the basis for numerous retrofits currently operating in dozens of nuclear units worldwide, dating back to its first wave of digital upgrades in the late 1980s that initially utilized the WDPF® Instrumentation and Control (I&C) platform.

Westinghouse has been providing its Flux Mapping System (FMS) for pressurized water reactors (PWRs) since the beginning of the commercial nuclear power industry. The FMS provided by Westinghouse and systems based on the Westinghouse technology and design are in operation in nearly 50 percent of the operating plants worldwide. Replacement systems and upgrades also have been provided to PWR FMSs.

Background A 1992 Electric Power Research Institute study identified nuclear instrumentation and control (I&C) systems as major contributors to plant operating and maintenance (O&M) costs as well as the leading cause of licensee event reports.

Control Room Annunciators are an integral part of a nuclear plant’s main control room that alert operations staff visually and audibly when an abnormal plant condition occurs. Annunciator systems in today’s operating fleet are often original plant equipment facing mechanical fatigue (aging), component obsolescence, and limited flexibility to incorporate modern approaches to plant operations.

Westinghouse has developed a modular approach to designing custom main control rooms (MCRs) as part of an instrumentation and control (I&C) system modernization program for new plant designs. The MCR modernization program comprises the human systems interface (HSI) building blocks to modernize an MCR, as well as the integration of standard, software-based HSI resources using the building-block approach. Examples of MCR configurations are based on this approach, which supports new plant construction and existing plant modernizations.

The Westinghouse Solution Westinghouse’s patent-pending NextGEN RPI design offers a cost-effective solution to resolve all Analog Rod Position Indication (ARPI) shortcomings and provide a simplified upgrade solution for ARPI and Digital Rod Position Indication (DRPI) plants.

Westinghouse is a global leader in the supply and support of nuclear plant instrumentation and control (I&C) upgrades, engineering services, plant modernizations and new plant design. The Westinghouse Nuclear Automation product portfolio covers all areas of system operation over the life of the plant. Products include instrumentation, safety systems, control systems, plant information systems, diagnostics and monitoring systems, engineering services for functional upgrades, control system analysis and optimization, and operating margin recovery.

As nuclear power plants are reaching 50-year milestones, the aging of system components needs to be considered – including those that are part of a Solid State Protection System (SSPS).

Westinghouse has developed new printed circuit cards for use in the solid state protection system (SSPS). The replacement printed circuit cards are the same in form, fit and function as the original cards, but also address obsolescence of the Motorola High Threshold Logic (MHTL) devices, which are designed to enhance reliability and include improvements for maintenance.

Background S3 is an integrated Westinghouse I&C technical support program through which our customers are provided with access to platform and application-specific Subject Matter Experts (SME) who can quickly respond to emergent I&C issues, as well as address long-term system planning and performance objectives.

Westinghouse has developed common turbine control solutions for pressurized water reactors (PWRs) and boiling water reactors (BWRs). The highly reliable Westinghouse turbine control protection system (TCPS) provides redundant control functions such as speed and overspeed control, load control, steam pressure control, valve testing, frequency control and turbine protection. The base control system can easily be expanded to provide additional functionality such as automatic turbine startup (ATS), moisture separator reheat (MSR) and the generator monitoring and turbine protection system (TPS).

Many nuclear utilities installed their post-accident monitoring instrumentation using technology from the late 1970s and early 1980s. In this rapidly changing technological environment, component obsolescence and ever increasing operations and maintenance (O&M) costs are a growing concern. To address this, Westinghouse is pleased to offer a modernized PAMS using its common qualified (Common Q™) platform.

With one of the largest safety-related installed bases in the world, the Westinghouse Common Qualified — or Common Q™ — safety-grade instrumentation and control (I&C) platform is approved by the U.S. Nuclear Regulatory Commission (NRC) and other nuclear regulators worldwide for both new plant build applications and operating plant safety system upgrades. The Common Q platform is safe, reliable, easy to service and supported for long-term operations.

The Westinghouse Customer Training Website is a portal to the extensive catalog of training programs offered by Westinghouse. The Website provides customers with a streamlined process for identifying and registering for scheduled courses. Westinghouse offers customized and on-site courses to meet individualized training needs.

WINCISE™ (Westinghouse In-Core Information Surveillance & Engineering) is an operational support system that uses Westinghouse technology licensed by the U.S. Nuclear Regulatory Commission (NRC) to obtain an accurate, continuous core power distribution measurement.