IEEE 3002.3 2018:2019 Edition
$81.25
IEEE Recommended Practice for Conducting Short-Circuit Studies and Analysis of Industrial and Commercial Power Systems
Published By | Publication Date | Number of Pages |
IEEE | 2019 | 184 |
New IEEE Standard – Active. Activities related to short-circuit analysis, including design considerations for new systems, analytical studies for existing systems, as well as operational and model validation considerations for industrial and commercial power systems are addressed. Fault current calculation and device duty evaluation is included in short-circuit analysis. Accuracy of calculation results primarily relies on system modeling assumptions and methods used. The use of computer-aided analysis software with a list of desirable capabilities recommended to conduct a modern short-circuit study is emphasized. Examples of system data requirements and result analysis techniques are presented.
PDF Catalog
PDF Pages | PDF Title |
---|---|
1 | IEEE Std 3002.3-2018 Front cover |
2 | Title page |
4 | Important Notices and Disclaimers Concerning IEEE Standards Documents |
7 | Participants |
9 | Introduction IEEE 3000 Standards Collection™ |
10 | Contents |
13 | 1. Scope 2. Normative references |
14 | 3. Definitions, acronyms, and abbreviations 3.1 Definitions |
19 | 3.2 Acronyms and abbreviations |
21 | 4. Introduction 4.1 Overview |
22 | 4.2 Objectives for short-circuit analysis 4.3 Methodology and standards |
23 | 5. Description of short-circuit current 5.1 Introduction 5.2 Available short-circuit current |
24 | 5.3 Symmetrical and asymmetrical currents |
26 | 5.4 Short-circuit calculations |
28 | 5.5 Total short-circuit current |
30 | 5.6 Why short-circuit currents are asymmetrical 5.7 DC component of short-circuit currents 5.8 Significance of current asymmetry |
31 | 5.9 The application of current asymmetry information |
32 | 5.10 Maximum peak current |
37 | 5.11 Types of faults |
39 | 5.12 Arc resistance |
40 | 6. General short-circuit calculation method 6.1 Introduction 6.2 Fundamental principles |
44 | 6.3 Short-circuit calculation procedure |
45 | 6.4 One-line diagram |
52 | 6.5 Per-unit and ohmic manipulations |
54 | 6.6 Network theorem and calculation techniques |
62 | 6.7 Symmetrical components—modeling method for unbalanced faults calculation |
66 | 6.8 Representing transformers with non-base voltages |
74 | 6.9 Specific time period and variations on fault calculations |
76 | 6.10 Determination of X/R ratios for fault calculations |
77 | 7. Equipment modeling for short-circuit calculation 7.1 Introduction |
78 | 7.2 Power grid 7.3 Synchronous machines |
83 | 7.4 Induction machines |
90 | 7.5 Transformers |
91 | 7.6 Duplex reactor |
92 | 7.7 Transmission lines and cables |
93 | 7.8 Capacitor and capacitive shunt components |
94 | 7.9 Equivalent circuits 7.10 Zero sequence line representation |
95 | 8. Short-circuit calculation method and device duty per ANSI standards 8.1 Introduction 8.2 Basic assumptions and system modeling |
96 | 8.3 ANSI recommended practice for ac decrement modeling |
100 | 8.4 ANSI practice for dc decrement modeling |
107 | 8.5 ANSI-conformable fault calculations |
109 | 8.6 ANSI-approved standards and interrupting duties |
110 | 8.7 Unbalanced short-circuit calculations |
118 | 9. Application of short-circuit interrupting equipment per ANSI standard 9.1 Introduction 9.2 Application considerations |
119 | 9.3 Equipment data |
120 | 9.4 Fully-rated systems 9.5 Low-voltage series-rated equipment |
121 | 9.6 Low-voltage circuit breaker short-circuit capabilities less than rating |
122 | 9.7 Equipment checklist for short-circuit currents evaluation |
123 | 9.8 Equipment phase duty calculations |
128 | 9.9 Equipment ground fault duty calculations |
129 | 9.10 Capacitor switching 10. Short-circuit calculation method and device duty per IEC standard 10.1 Introduction |
130 | 10.2 System modeling and methodologies |
131 | 10.3 Voltage factors 10.4 Short-circuit currents per IEC 60909 |
132 | 10.5 Short-circuits far from generator |
137 | 10.6 Short-circuits near generator |
144 | 10.7 Influence of the motors |
146 | 10.8 Fault calculations in complex systems |
150 | 10.9 Low-voltage systems |
154 | 11. Comparison of ANSI and IEC short-circuit calculation methods 11.1 Introduction 11.2 Difference in equipment modeling |
155 | 11.3 Difference in calculation method |
156 | 12. Equipment data required for short-circuit calculation 12.1 Introduction |
157 | 12.2 Utility sources 12.3 Generators |
158 | 12.4 Synchronous motors |
159 | 12.5 Induction motors 12.6 Transformers |
160 | 12.7 Reactors |
161 | 12.8 Capacitors 12.9 Static regenerative drives |
162 | 12.10 Circuit breakers, contactors, and current transformers 12.11 Cables |
163 | 12.12 Transmission lines 12.13 Protective device ratings |
164 | 13. Data collection and preparation 13.1 Introduction 13.2 Utility short-circuit parameters 13.3 Equipment data from existing system |
165 | 13.4 Typical data for short-circuit calculation |
166 | 13.5 Library data from computer software 14. Model and data validation 14.1 Introduction 14.2 Parameters and model to be validated |
167 | 14.3 Methods for model and data validation 15. Study scenarios and solution parameters 15.1 Introduction 15.2 Maximum and minimum short-circuit contributions |
168 | 15.3 System configurations 15.4 System operating conditions |
169 | 16. Results and reports 16.1 Introduction 16.2 ANSI standard based studies |
170 | 16.3 IEC standard based studies 17. Features of analysis tools 17.1 Introduction 17.2 Essential features for ANSI-based studies |
172 | 17.3 Essential features for IEC based studies |
173 | 17.4 Essential features for all standards |
174 | 17.5 Optional features |
175 | 18. Illustration examples 18.1 ANSI example system |
178 | 18.2 IEC Example system |
180 | Annex A (informative)Bibliography |