IEEE 242-2001

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IEEE Recommended Practice for Protection and Coordination of Industrial and Commercial Power Systems (IEEE Buff Book)

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IEEE	2001

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Description

Revision Standard – Active. This IEEE Standards product is part of the Color Books family. System protection and coordination serve to minimize damage to a system and its components, thereby limiting the extent and duration of any service interruption occurring on any portion of the system. The IEEE Buff Book deals with the proper selection, application, and coordination of the components that constitute system protection for industrial plants and commercial buildings. The IEEE Buff Book presents complete information on protection and coordination principles designed to protect industrial and commercial power systems against any abnormalities that could reasonably be expected to occur during the course of system operation. The information is arranged in a convenient step-by-step format for easy comprehension. It is a valuable sourcebook for use at the system design stage, as well as in the modification of existing operations for better system protection. The IEEE Buff Book supports the goal of system protection by efficiently isolating and removing problems. In achieving this goal, certain design features must be utilized. One of the main design features involves the rapid isolation of the affected portion of the system, while maintaining normal operation elsewhere. Another design feature reduces the short-circuit current to minimize damage to the system, its components, and the utilization equipment it supplies. Yet another design feature provides alternate circuits, automatic throw overs, and automatic reclosing devices. These design features for system protection are the focus of the IEEE Buff Book.

PDF Catalog

PDF Pages	PDF Title
5	Introduction Participants
8	Contents
12	IEEE Recommended Practice for Protection and Coordination of Industrial and Commercial Power Systems Chapter 1 First principles 1.1 Overview
14	1.2 Protection against abnormalities
15	1.3 Planning system protection
16	1.4 Preliminary design
18	1.5 Basic protective equipment
19	1.6 Special protection 1.7 Field follow-up 1.8 References
22	Chapter 2 Short-circuit calculations 2.1 Introduction
23	2.2 Types of short-circuit currents
24	2.3 The nature of short-circuit currents
26	2.4 Protective device currents
30	2.5 Per-unit calculations 2.6 Short-circuit current calculation methods
31	2.7 Symmetrical components
39	2.8 Network interconnections
44	2.9 Calculation examples
52	2.10 Specialized faults for protection studies
55	2.11 References
56	2.12 Bibliography
58	Chapter 3 Instrument transformers 3.1 Introduction 3.2 Current transformers (CTs)
73	3.3 Voltage (potential)transformers (VTs)
76	3.4 References 3.5 Bibliography
78	Chapter 4 Selection and application of protective relays 4.1 General discussion of a protective system
80	4.2 Zones of protection
81	4.3 Fundamental operating principles
82	4.4 Functional description —application and principles
130	4.5 References 4.6 Bibliography
140	Chapter 5 Low-voltage fuses 5.1 General discussion 5.2 Definitions
144	5.3 Documentation
149	5.4 Standard dimensions
157	5.5 Typical interrupting ratings
158	5.6 Achieving selectivity with fuses
162	5.7 Current-limiting characteristics
166	5.8 Special applications for low-voltage fuses
177	5.9 References
179	5.10 Bibliography
180	Chapter 6 High-voltage fuses (1000 V through 169 kV) 6.1 Definitions
184	6.2 Fuse classification
188	6.3 Current-limiting and expulsion power fuse designs
194	6.4 Application of high-voltage fuses
208	6.5 References
209	6.6 Bibliography
210	Chapter 7 Low-voltage circuit breakers 7.1 General
211	7.2 Ratings
213	7.3 Current limitation
214	7.4 Typical ratings 7.5 Trip unit
227	7.6 Application
237	7.7 Accessories 7.8 Conclusions
238	7.9 References
239	7.10 Bibliography
242	Chapter 8 Ground-fault protection 8.1 General discussion
243	8.2 Types of systems relative to ground-fault protection
250	8.3 Nature,magnitudes,and damage of ground faults
260	8.4 Frequently used ground-fault protective schemes
266	8.5 Typical applications
280	8.6 Special applications
292	8.7 References 8.8 Bibliography
296	Chapter 9 Conductor protection 9.1 General discussion 9.2 Cable protection
298	9.3 Definitions
299	9.4 Short-circuit current protection of cables
318	9.5 Overload protection of cables
332	9.6 Physical protection of cables
335	9.7 Code requirements for cable protection
336	9.8 Busway protection
347	9.9 References
348	9.10 Bibliography
350	Chapter 10 Motor protection 10.1 General discussion 10.2 Factors to consider in protection of motors
355	10.3 Types of protection
361	10.4 Low-voltage motor protection
369	10.5 Medium-voltage motor protection
400	10.6 References
401	10.7 Bibliography
404	Chapter 11 Transformer protection 11.1 General discussion 11.2 Need for protection
405	11.3 Objectives in transformer protection
406	11.4 Types of transformers 11.5 Preservation systems
409	11.6 Protective devices for liquid preservation systems
419	11.7 Thermal detection of abnormalities
426	11.8 Transformer primary protective device 11.9 Protecting the transformer from electrical disturbances
447	11.10 Protection from the environment
448	11.11 Conclusion 11.12 References
452	Chapter 12 Generator pr tection 12.1 Introduction 12.2 Classification of generator applications
455	12.3 Short-circuit performance
462	12.4 Generator grounding
465	12.5 Protective devices
523	12.6 References 12.7 Bibliography
526	Chapter 13 Bus and switchgear protection 13.1 General discussion
527	13.2 Types of buses and arrangements
529	13.3 Bus overcurrent protection
530	13.4 Medium-and high-voltage bus differential protection
536	13.5 Backup protection 13.6 Low-voltage bus conductor and switchgear protection
537	13.7 Voltage surge protection
539	13.8 Conclusion 13.9 References
540	13.10 Bibliography
542	Chapter 14 Service supply-line protection 14.1 General discussion
543	14.2 Service requirements
546	14.3 System disturbances
558	14.4 Supply-line protection
569	14.5 Examples of supply-system protective schemes
582	14.6 References
584	14.7 Bibliography
586	Chapter 15 Overcurrent coordination 15.1 General discussion
587	15.2 General considerations
591	15.3 Overcurrent protection guidelines
601	15.4 TCC plots
607	15.5 CTIs
615	15.6 Initial planning and data required for a coordination study
618	15.7 Procedure
637	15.8 Ground-fault coordination on low-voltage systems
638	15.9 Phase-fault coordination on substation 600 V or less
647	15.10 References 15.11 Bibliography
650	Chapter 16 Maintenance,testing,and calibration 16.1 Overview
651	16.2 Definitions
652	16.3 Safety of personnel
654	16.4 Safety provisions for maintenance operations
659	16.5 Frequency of maintenance operations
663	16.6 Maintenance of switchgear for voltages up to 1000 V ac and 1200 V dc
670	16.7 Maintenance of air-magnetic switchgear for voltages above 1000 V ac and 1200 V dc
680	16.8 Maintenance of oil switchgear
686	16.9 Maintenance of vacuum circuit breaker switchgear
690	16.10 Maintenance of sulfur hexa •uoride (SF 6 )circuit breaker and load-interrupter switchgear
693	16.11 Diagnostic testing
700	16.12 Maintenance of auxiliary items
706	16.13 Maintenance of protective apparatus
707	16.14 Maintenance and testing of insulation
710	16.15 Maintenance of industrial molded-case circuit breakers (MCCBs)
712	16.16 References
715	16.17 Bibliography
722	INDEX

Additional information

Standard Title	IEEE Recommended Practice for Protection and Coordination of Industrial and Commercial Power Systems (IEEE Buff Book)
Published Code	IEEE
Publication Date	2001

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