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Residual Current Devices
Selection, Operation, and Testing
1st Edition - January 11, 2022
Author: Stanislaw Czapp
Language: English
Paperback ISBN:9780323897839
9 7 8 - 0 - 3 2 3 - 8 9 7 8 3 - 9
eBook ISBN:9780323885843
9 7 8 - 0 - 3 2 3 - 8 8 5 8 4 - 3
Residual Current Devices: Selection, Operation, and Testing looks at the evolution in construction types of residual current devices and discusses the types and functiona…Read more
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Residual Current Devices: Selection, Operation, and Testing looks at the evolution in construction types of residual current devices and discusses the types and functional properties of contemporary systems. The principle of operation of elements is explained, along with the primary parameters of the devices and their selection and application, as well as the rules of backup protection of residual current devices. The requirements of the standards concerning the importance of obligatory use of devices are included, along with explanation of the needed protection in case of fault, additional protection, and protection against fire. The issue of residual current device operation in circuits with nonsinusoidal currents is detailed, giving special attention to the unique results of residual current device testing and tripping under distorted earth fault currents. In modern electrical and electronic installations, new complex challenges arise for designers and maintenance staff. This book is an essential guide to address those challenges, and its problem-solving section is useful for students, tutors, and academics, as well as engineers involved in the process of design, maintenance, and verification of safety in low-voltage electrical installations.
Explains the practical aspects of the selection and utilization of residual current devices
Provides guidance on the operation of residual current devices in modern circuits characterized by nonsinusoidal earth fault currents
Features remedies for challenges in unwanted tripping of residual current devices during the obligatory verification of low-voltage systems
Graduate students, researchers, and practitioners in industry, who are working on the design and operation of power electronic equipment and engineers who are using the power electronic equipment in their application. Graduate courses, Fundamentals of Power Electronic (Graduate course, Intensive industrial course), Power Electronic Converters and Systems, Power Converters and their applications
Cover image
Title page
Table of Contents
Copyright
Preface
Terms and definitions
Abstract
Sources
Chapter 1: Genesis of residual current devices
Abstract
References
Chapter 2: Construction of modern residual current devices
Abstract
2.1: Electromechanical relay
2.2: Current transformer
2.3: Internal testing circuit
References
Chapter 3: Types, parameters, and reliability of residual current devices
Abstract
3.1: Conventional residual current devices
3.2: Special residual current devices and their functions
3.3: Failures of residual current devices
References
Chapter 4: Protection against electric shock
Abstract
4.1: Protection in case of fault
4.2: Additional protection
References
Chapter 5: Protection against fire
Abstract
5.1: Leakage currents
5.2: Arcing
References
Chapter 6: Requirements of standards with reference to application of residual current devices
Abstract
6.1: HD 60364-4-41:2017 Low-voltage electrical installations—Part 4-41: Protection for safety—Protection against electric shock [1]
6.2: IEC 60364-5-53:2015 Low-voltage electrical installations—Part 5-53: Selection and erection of electrical equipment—Switchgear and controlgear [2]
6.3: IEC 60364-5-55:2011 Electrical installations of buildings—Part 5-55: Selection and erection of electrical equipment—Other equipment [3]
6.4: HD 60364-7-701:2007 Low-voltage electrical installations—Part 7-701: Requirements for special installations or locations—Locations containing a bath or shower [4]
6.5: IEC 60364-7-702:2010 Low-voltage electrical installations—Part 7-702: Requirements for special installations or locations—Swimming pools and fountains [5]
6.6: HD 60364-7-703:2005 Electrical installations of buildings—Part 7-703: Requirements for special installations or locations—Rooms and cabins containing sauna heaters [6]
6.7: HD 60364-7-704:2007 Low-voltage electrical installations—Part 7-704: Requirements for special installations or locations—Construction and demolition site installations [7]
6.8: HD 60364-7-705:2007 Low-voltage electrical installations—Part 7-705: Requirements for special installations or locations—Agricultural and horticultural premises [8]
6.9: HD 60364-7-706:2007 Low-voltage electrical installations—Part 7-706: Requirements for special installations or locations—Conducting locations with restricted movement [9]
6.10: IEC 60364-7-708:2017 Low-voltage electrical installations—Part 7-708: Requirements for special installations or locations—Caravan parks, camping parks and similar locations [10]
6.11: HD 60364-7-709:2010/A12:2019 Low-voltage electrical installations—Part 7-709: Requirements for special installations or locations—Marinas and similar locations [11]
6.12: HD 60364-7-710:2012 Low-voltage electrical installations—Part 7-710: Requirements for special installations or locations—Medical locations [12]
6.13: IEC 60364-7-711:2018 Low-voltage electrical installations—Part 7-711: Requirements for special installations or locations—Exhibitions, shows and stands [13]
6.14: HD 60364-7-712:2016 Low-voltage electrical installations—Part 7-712: Requirements for special installations or locations—Photovoltaic (PV) systems [14]
6.15: IEC 60364-7-713:2013 Electrical installations of buildings—Part 7-713: Requirements for special installations or locations—Furniture [16]
6.16: HD 60364-7-714:2012 Low-voltage electrical installations—Part 7-714: Requirements for special installations or locations—External lighting installations [17]
6.17: HD 60364-7-721:2019 Low-voltage electrical installations—Part 7-721: Requirements for special installations or locations—Electrical installations in caravans and motor caravans [18]
6.18: HD 60364-7-722:2018 Low-voltage electrical installations—Part 7-722: Requirements for special installations or locations—Supplies for electric vehicles [19]
6.19: HD 60364-7-730:2015 Low-voltage electrical installations—Part 7-730: Requirements for special installations or locations—Onshore units of electrical shore connections for inland navigation vessels [21]
6.20: HD 60364-7-740:2006 Electrical installations of buildings—Part 7-740: Requirements for special installations or locations—Temporary electrical installations for structures, amusement devices and booths at fairgrounds, amusement parks and circuses [22]
6.21: IEC 60364-7-753:2014 Low-voltage electrical installations—Part 7-753: Requirements for special installations or locations—Heating cables and embedded heating systems [23]
6.22: IEC 60364-5-56:2018 Low-voltage electrical installations—Part 5-56: Selection and erection of electrical equipment—Safety services [24]
6.23: HD 60364-7-710:2012 Low-voltage electrical installations—Part 7-710: Requirements for special installations or locations—Medical locations [12]
6.24: HD 60364-7-718:2013 Low-voltage electrical installations—Part 7-718: Requirements for special installations or locations—Communal facilities and workplaces [25]
References
Chapter 7: Backup protection of residual current devices
Abstract
7.1: General information
7.2: Backup protection with the use of fuses
7.3: Backup protection with the use of miniature circuit-breakers
References
Chapter 8: Circuits with nonsinusoidal currents
Abstract
8.1: General information
8.2: Rectifiers
8.3: Alternating residual currents with harmonics
8.4: Alternating residual currents characterized by current delay angle (symmetrical current control)
8.5: Recommendations for residual current devices application to circuits with nonsinusoidal earth fault currents
References
Chapter 9: Earth fault loop impedance measurement in circuits with residual current devices
Abstract
9.1: General information
9.2: Properties of the loop impedance meters and testing of residual current devices
9.3: Special methods of the measurement to circuits with residual current devices
References
Chapter 10: Residual current devices in circuits with surge protective devices
Abstract
References
Chapter 11: Immunity of residual current devices to the impulse leakage currents
Abstract
References
Chapter 12: Verification of residual current devices
Abstract
12.1: General information
12.2: Verification of the tripping current
12.3: Verification of the break time
12.4: Fault diagnosis in circuits with residual current devices
References
Chapter 13: Summary
Appendix A: Examples of RCD selection
Abstract
Example 1
Example 2
Example 3
Example 4
Example 5
Example 6
Appendix B: Standards regarding residual current devices’ performance, application, and operation
Abstract
Index
No. of pages: 250
Language: English
Edition: 1
Published: January 11, 2022
Imprint: Academic Press
Paperback ISBN: 9780323897839
eBook ISBN: 9780323885843
SC
Stanislaw Czapp
Dr. Stanislaw Czapp is an associate professor at the Faculty of Electrical and Control Engineering, Gdańsk University of Technology, Poland. His research and teaching activity are related to electrical installations and devices, electric lighting, and in particular protection against electric shock. He has authored and coauthored many articles and conference papers, as well as unpublished studies such as designs, expert evaluations, and opinions.
Affiliations and expertise
Associate Professor, Gdańsk University of Technology, Poland