Under the projects on life extension of Embalse Nuclear Power Plant (NPP), Argentina, RPC Radiy designed and manufactured the equipment: Window Alarm Annunciators (WAA) of Main Control Room (MCR) and Secondary Control Area (SCA) and PHT pump motor speed measuring devices. The projects were performed by the Argentine utility NA-SA (Nucleoelectrica S. A.) to extend the operating life of Candu-6 reactor.

PHT pump motor speed measuring devices

The Signal Processing Unit (SPU) was designed using Field Programmable Gate Array (FPGA) technology. SPU reads a speed sensor signal and outputs a voltage proportional to the input signal frequency.

The Signal Processing Unit consists of:

• signal acquisition and analog output components, controlled by logic configured in an FPGA chip with self- diagnostics capabilities, and
• a separate power supply and monitoring system implemented via a Complex Programmable Logic Device (CPLD) to constantly monitor the FPGA. 

The monitoring and diagnostics will drive the SPU to a safe state in case of detection of critical failures. The SPU was qualified to IEC 61513 Class 1 and supports Category A safety functions.

Before shipping the equipment to the client - Candu Energy Inc., RPC Radiy performed all required qualification tests which proved its stability in different operational conditions according to IEEE and IEC standards. 

The equipment was manufactured in full accordance with the requirements of ISO 9001: 2008 and CSA Z299.1.