Motor-Operated Valve Performance

2014 ◽  
Author(s):  
Michael F. Farnan
Keyword(s):  
Nuclear Power ◽  
Power Plants ◽  
Nuclear Power Plants ◽  
Operational Experience ◽  
Reliable Operation

Motor-operated valves (MOVs) play an important role in the safe and reliable operation of today’s nuclear power plants. The purpose and scope of this paper is to review recent MOV operational experience events. The paper will discuss current findings and trends that relate to operation, maintenance, and surveillance testing of MOVs. Paper published with permission.

Operational Experience Data Analysis on Events Related to Maintenance at Nuclear Power Plants

2016 ◽  
Vol 184 (4) ◽  
pp. 575-583 ◽  
Author(s):  
Antonio Ballesteros ◽  
Radian Sanda ◽  
Michael Maqua ◽  
Jean-Luc Stephan
Keyword(s):  
Data Analysis ◽  
Nuclear Power ◽  
Power Plants ◽  
Nuclear Power Plants ◽  
Operational Experience

scholarly journals Room Classification Based on EMC Conditions in Nuclear Power Plants

Energies ◽  
2020 ◽  
Vol 13 (2) ◽  
pp. 359 ◽  
Author(s):  
Hrvoje Grganić ◽  
Davor Grgić ◽  
Siniša Šadek
Keyword(s):  
Power Plant ◽  
Nuclear Power Plant ◽  
Nuclear Power ◽  
Power Plants ◽  
Nuclear Power Plants ◽  
Electromagnetic Compatibility ◽  
Numerical Calculations ◽  
Operational Experience ◽  
Systematic Classification

Electromagnetic compatibility (EMC) in nuclear power plants today mostly relies on the qualification tests of the new equipment and adhering to some good installation practices. Diversity of the electromagnetic environment and different susceptibility of the plant equipment calls for a systematic classification of the EMC zones in a nuclear power plant. The paper proposes a methodology that uses a combination of the qualification tests, in situ and bench immunity tests, site survey measurements, operational experience, and numerical calculations to divide a nuclear power plant into a reasonable number of EMC zones. This would primarily help to have a better overview of the current EMC level in the plant and to unify emission and susceptibility requirements for the new equipment. In this paper, special attention is given to the preparation and performance of the in situ tests, which present the most challenging step of the methodology. In addition, the paper proposes some of the possible applications of the numerical calculations and addresses their challenges and limitations. The novel classification methodology, inspired by the equipment qualification program, is illustrated with examples from Krško Nuclear Power Plant, which recently performed a comprehensive EMC assessment.

scholarly journals Operational Experience and Further Development of Water Chemistry of Nuclear Power Plants.

1995 ◽  
Vol 37 (10) ◽  
pp. 898-906
Author(s):  
Kenkichi ISHIGURE ◽  
Takahisa HATTORI ◽  
Toshiharu MIYAGAWA ◽  
Hiroyuki NAGAO ◽  
Kimio SAKAI ◽  
...  
Keyword(s):  
Water Chemistry ◽  
Nuclear Power ◽  
Power Plants ◽  
Nuclear Power Plants ◽  
Operational Experience ◽  
Further Development
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