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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.
List of contents
1. Genesis of residual current devices
2. Construction of modern residual current devices
3. Types, parameters, and reliability of residual current devices
4. Protection against electric shock
5. Protection against fire
6. Requirements of standards with reference to application of residual current devices
7. Backup protection of residual current devices
8. Circuits with nonsinusoidal currents
9. Earth fault loop impedance measurement in circuits with residual current devices
10. Residual current devices in circuits with surge protective devices
11. Immunity of residual current devices to the impulse leakage currents
12. Verification of residual current devices
Summary
Appendix A Examples of RCD selection
Appendix B Standards regarding residual current devices' performance, application, and operation
About the author
Dr. Stanislaw Czapp is an associate professor at the Faculty of Electrical and Control Engineering, Gdansk 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.
Report
"This book would be of most interest to our readers who want to learn abot the operations and details of RCDs. It contains very good technical details and good discussions relating to applicable standardrs. Note that this book is exclusively focused on RCDs and does not cover GFCIs. Although the operating principals between RCDs and GFCIs are the same, the threshold requiremenets differ between international standards and US standards. Nonetheless, this is a very useful book for learning about these very important electrical safety devices." --IEEE - Electrical Insulation Magazine
