LIMERICK BWR TURBINE CONTROL AND PROTECTION SYSTEM UPGRADE SUCCESS
35th Annual CNS Conference - 2015 May 31 - June 3


Presented at:
35th Annual CNS Conference
2015 May 31 - June 3
Location:
Saint John, Canada
Session Title:
2A3 - Instrumentation and Control

Authors:
C. Tang (Westinghouse Electric Company)
T. Pietryka (Westinghouse Electric Company)
P. Federico (Westinghouse Electric Company)
  

Abstract

Westinghouse and Exelon have successfully implemented a digital electro-hydraulic control (DEHC) at Limerick BWR Unit 1 Station to perform the turbine control, protection and reactor pressure functions. The DEHC replaces analog controls and addressed system performance, obsolescence and reliability. This was a first-of-a-kind application for control and protection of the main turbine and BWR pressure control for the distributed control system utilized. The demolition of analog equipment, main control room and front standard modifications, and acceptance testing were completed on schedule during the normal 2014 outage. Key aspects of the project that facilitated this success will be discussed and presented.



Individual Conference-Paper Copies (Electronic Where Available):

  • For CNS members, the first 5 copies per calendar year are free, and additional copies are $10 each.
  • For non-members, the price is $25 for the first Conference-paper copy in a request, and $10 each for additional copies of papers in the same conference and in the same request.
  • Contact the CNS office to order reprints.