Reliability of the Emergency Ac-power System at Nuclear Power Plants

Reliability of the Emergency Ac-power System at Nuclear Power Plants
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Total Pages:
Release: 1982
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ISBN:

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The reliability of the emergency ac-power systems typical of several nuclear power plants was estimated, the costs of several possible improvements was estimated. Fault trees were constructed based on a detailed design review of the emergency ac-power systems of 18 nuclear plants. The failure probabilities used in the fault trees were calculated from extensive historical data collected from Licensee Event Reports (LERs) and from operating experience information obtained from nuclear plant licensees. It was found that there are not one or two improvements that can be made at all plants to significantly increase the industry-average emergency ac-power-system reliability, but the improvements are varied and plant-specific. Estimates of the improvements in reliability and the associated cost are estimated using plant-specific designs and failure probabilities.

Reliability of Emergency Ac Power Systems at Nuclear Power Plants

Reliability of Emergency Ac Power Systems at Nuclear Power Plants
Author:
Publisher:
Total Pages:
Release: 1983
Genre:
ISBN:

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Reliability of emergency onsite ac power systems at nuclear power plants has been questioned within the Nuclear Regulatory Commission (NRC) because of the number of diesel generator failures reported by nuclear plant licensees and the reactor core damage that could result from diesel failure during an emergency. This report contains the results of a reliability analysis of the onsite ac power system, and it uses the results of a separate analysis of offsite power systems to calculate the expected frequency of station blackout. Included is a design and operating experience review. Eighteen plants representative of typical onsite ac power systems and ten generic designs were selected to be modeled by fault trees. Operating experience data were collected from the NRC files and from nuclear plant licensee responses to a questionnaire sent out for this project.

Design of Emergency Power Systems for Nuclear Power Plants

Design of Emergency Power Systems for Nuclear Power Plants
Author: International Atomic Energy Agency
Publisher: IAEA
Total Pages: 78
Release: 2004
Genre: Business & Economics
ISBN:

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This publication contains guidance and recommendations on the requirements for ensuring the reliability of all types of emergency powers systems (EPSs) for both new and operating nuclear power plants. It is intended for the use of those involved in the design, operation, assessment and licensing of EPSs, including designers, safety assessors, regulators and operators. It revises the previous safety guide (Safety standards series no. 50-SG-D7 (Rev. 1) (ISBN 9201232918) issued in 1991.

Emergency Power Systems at Nuclear Power Plants

Emergency Power Systems at Nuclear Power Plants
Author: International Atomic Energy Agency
Publisher:
Total Pages: 92
Release: 1991
Genre: Business & Economics
ISBN:

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Presents the safety objective, and detailed requirements for the fulfilment of safety function for the various types of emergency power systems. AC, DC, non-interruptible AC, standby diesel generators and non-electric systems such as steam turbines for individual pumps and instrument air, and the necessary distribution systems are dealt with.

Reliability Assurance Program for Operational Emergency Ac Power System

Reliability Assurance Program for Operational Emergency Ac Power System
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Total Pages:
Release: 1985
Genre:
ISBN:

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A comprehensive review of emergency ac power systems in nuclear generating plants (the vast majority of these plants contain redundant diesel generator systems) delineates several operational areas that can be improved by instituting a reliability assurance program (RAP), which initially upgrades the diesel generator performance and provides for ongoing monitoring and maintenance based upon alert levels.

Safety Assessment of Emergency Power Systems for Nuclear Power Plants

Safety Assessment of Emergency Power Systems for Nuclear Power Plants
Author: International Atomic Energy Agency
Publisher:
Total Pages: 104
Release: 1992
Genre: Business & Economics
ISBN:

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Presents the questions which must be posed by the safety assessor when reviewing the safety of an emergency power system in the design of a nuclear power plant. An extensive reference list of relevant international and national technical standards provides further guidance on acceptable design solutions.

Electrical Systems for Nuclear Power Plants

Electrical Systems for Nuclear Power Plants
Author: Dr. Omar S. Mazzoni
Publisher: John Wiley & Sons
Total Pages: 229
Release: 2018-09-13
Genre: Science
ISBN: 1119483670

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Covers all aspects of electrical systems for nuclear power plants written by an authority in the field Based on author Omar Mazzoni's notes for a graduate level course he taught in Electrical Engineering, this book discusses all aspects of electrical systems for nuclear power plants, making reference to IEEE nuclear standards and regulatory documents. It covers such important topics as the requirements for equipment qualification, acceptance testing, periodic surveillance, and operational issues. It also provides excellent guidance for students in understanding the basis of nuclear plant electrical systems, the industry standards that are applicable, and the Nuclear Regulatory Commission's rules for designing and operating nuclear plants. Electrical Systems for Nuclear Power Plants offers in-depth chapters covering: elements of a power system; special regulations and requirements; unique requirements of a Class 1E power system; nuclear plants containment electrical penetration assemblies; on-site emergency AC sources; on-site emergency DC sources; protective relaying; interface of the nuclear plant with the grid; station blackout (SBO) issues and regulations; review of electric power calculations; equipment aging and decommissioning; and electrical and control systems inspections. This valuable resource: Evaluates industry standards and their relationship to federal regulations Discusses Class 1E equipment, emergency generation, the single failure criterion, plant life, and plant inspection Includes exercise problems for each chapter Electrical Systems for Nuclear Power Plants is an ideal text for instructors and students in electrical power courses, as well as for engineers active in operating nuclear power plants.

Electric Grid Reliability and Interface with Nuclear Power Plants

Electric Grid Reliability and Interface with Nuclear Power Plants
Author: International Atomic Energy Agency
Publisher: IAEA Nuclear Energy
Total Pages: 78
Release: 2012
Genre: Science
ISBN: 9789201261106

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This publication describes the characteristics of the electrical grid system that are required for the connection and successful operation of a nuclear power plant, as well as the characteristics of a nuclear power plant that are significant for the design and operation of the electrical grid system. It addresses the issues to be considered when a nuclear power plant is being planned and describes the information exchange necessary between the developer of a nuclear power plant and the organization responsible for the electrical grid. The particular issue of a large nuclear unit connected with a small system is also discussed. A new topic introduced in this publication is the need for cyber security of the grid system near the nuclear power plant. Several case studies of Member States experience in developing new nuclear units and about grid events during operation are included.

Author:
Publisher: Elsevier
Total Pages: 3685
Release:
Genre:
ISBN: 0080962319

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