Maintenance Optimisation At Rovno NPP

1
Maintenance Optimisation At Rovno NPP

• Robert Hudson

2
EUROPEAID PROJECT /123833/C/SER/UA

• Transfer an Operational Safety Culture
• Support implementation of nuclear safety
  improvement projects
• Transfer of know-how
• To develop a state of the art preventive and
  predictive maintenance system for mechanical,
  electrical and IC equipment

3
Rovno NPP

• Design of West-Ukraine NPP began in 1971, later
  to be named Rovno NPP
• 1 of 4 Sites operated by Energoatom
• Unit 1 VVER-440 Model B-213, start up
  December-1980
• Unit 2 VVER-440 Model B-213, start up
  December-1981
• Unit 3 VVER-1000 Model 320, start up
  December-1986
• Unit 4 VVER-1000 Model 320, start up October-2004

4
ACTIVITIES

• Review the existing maintenance system
• Identify potential safety issues and challenges
• Provide recommendations on improvement of the
  existing system
• Develop a methodical guidance for preventive and
  predictive maintenance of active mechanical,
  electrical and IC equipment
• Provide training for Rovno NPP personnel
• Draft a pilot preventive and predictive
  maintenance programme for one selected equipment
  type of each component group (mechanical,
  electrical and IC)

5
PROPOSED METHODOLOGY

• Based upon significant experience of maintenance
  improvements at UK power stations, and more
  recently Slovenske Elektrarnes Mochovce NPP, it
  was proposed that the basis of Rovno NPP
  maintenance system improvements be
  Reliability-Centred Maintenance
• Reliability-Centred Maintenance (RCM) is a
  structured methodology that defines preventive
  maintenance regimes that
• Reduces the probability of failure
• Restores the inherent level of equipment
  reliability
• Ensures that plant performance is not degraded by
  time nor usage

6
PROJECT STRUCTURE

• It is proposed that the project be divided into
  four distinct phases
• Phase I - Visioning, RCM training of nominated
  Rovno NPP personnel during a UK Study Tour
  (including RCM software)
• Phase II - Completion of a pilot RCM study of a
  selected nuclear safety system
• Phase III - Implementation of the recommendations
  from Phase II
• Phase IV Finalise recommendations for ongoing
  improvement of the Rovno NPP maintenance system,
  review of results against the benchmarks defined
  in Phase I and complete the transfer of know-how
  to Rivne NPP personnel

7
PHASE I DETAILED TASKS

• Define objectives and performance parameters
• Analyse the current Rovno NPP maintenance system
• Form the RCM Focus Group
• Select system(s) for the pilot RCM study
• Define an implementation strategy
• Deliver RCM training (in UK) to the RCM Focus
  Group Rivne personnel
• Identify Rovnos Predictive Maintenance (PdM)
  capabilities

8
PHASE II DETAILED TASKS

• Preparation of pre-RCM study materials at Rovno
  NPP, e.g. system manuals, maintenance data
• RCM Focus Group meetings each comprising one week
  at Rovno NPP
• Plant walkdown of the selected pilot system
• Recording of the RCM Study results via the RCM
  software

9
PHASES III AND IV

• Verification of the RCM report(s)
• Preparation of implementation documentation
• Work planning requirements
• Compile Affected Documents/Drawing List (ADL)
• Presentation of results to Rovno NPP management
• Preparation of Safety Submission for regulatory
  endorsement
• Presentation of the Safety Submission to the
  Ukrainian regulatory body (SNRCU)
• Implementation via local Rovno NPP procedures
• Close out workshop and post-project debrief
• Final report production and submission

10
RESULTS TO DATE

• 20 Energoatom personnel trained in the RCM
  methodology
• Make Up Water and Boric Acid Regulation System
  RCM analysis complete
• RCM Report, including RCM Software output,
  complete
• Supporting Safety Submission to SNRCU currently
  being drafted
• Comprehensive assessment of RNPP Condition
  Monitoring capabilities nearing completion