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IEEE 741-2022(Redline)

$69.33

IEEE Standard for Criteria for the Protection of Class 1E Power Systems and Equipment in Nuclear Power Generating Stations (Redline)

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IEEE 2022
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Revision Standard – Active. Criteria that establish protection requirements for Class 1E power systems and equipment are prescribed in this standard. The purpose of and the means for obtaining protection from electrical and mechanical damage, or failures that can occur within a time period that is shorter than that required for operator action, are described. Testing and surveillance requirements are included. Plant physical design requirements to protect against events such as pipe whip, fire, dropped load, etc., are not included.

PDF Catalog

PDF Pages PDF Title
1 IEEE Std 741™-2022 Front cover
2 Title page
4 Important Notices and Disclaimers Concerning IEEE Standards Documents
8 Participants
10 Introduction
11 Contents
12 1. Overview
1.1 Scope
1.2 Word usage
2. Normative references
14 3. Definitions, acronyms, and abbreviations
3.1 Definitions
15 3.2 Acronyms and abbreviations
16 4. General design criteria
4.1 Criteria
17 5. Principal design criteria and requirements
5.1 AC power distribution systems
19 5.2 DC power system
5.3 Instrumentation and control power system
5.4 Primary containment electrical penetration assemblies
20 5.5 Valve actuator motors (direct gear driven)
21 6. Testing and surveillance
6.1 Device testing
6.2 Preoperational tests
6.3 Surveillance
23 Annex A (normative) Illustration of concepts associated with degraded voltage protection
A.1 Purpose
A.2 Discussion
26 A.3 Degraded voltage relay settings
27 A.4 Degraded voltage relay analysis
32 A.5 Loss of voltage relay settings
A.6 High-voltage conditions
A.7 Off-site system voltage considerations
33 A.8 Tolerances
A.9 Summary
34 Annex B (informative) Guidelines for selection of overload protection for valve actuator motor (VAM) circuits
B.1 Purpose
B.2 Discussion
B.3 Overload protection devices
37 B.4 Typical procedures for selection of TORs
55 Annex C (informative) Auxiliary system automatic bus transfer—protection concerns
C.1 Purpose
C.2 Discussion
57 C.3 Bus transfer analysis
59 C.4 Bus transfer protection issues
60 C.5 Implementation of a bus transfer scheme using dynamic modeling
62 Annex D (informative) Use of high-speed magnetic circuit breakers for special applications
D.1 Purpose
D.2 Discussion
65 Annex E (informative) Bibliography
67 Back cover
IEEE 741-2022
$69.33