Residual Current Devices

Safety is the fundamental aspect considered during the design and construction processes of electrical installations. 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 the contemporary systems. The principle operation of elements are explained, along with primary parameters of the devices and their selection and application, with the rules of back-up protection of residual current devices. Requirements of the standards concerning the importance of obligatory use of devices are included with protection in case of fault, additional protection, and protection against fire. The issue of residual current devices operation in circuits with non-sinusoidal currents is detailed, with special attention given 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 a guide to address those challenges and has a 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 non-sinusoidal earth fault current Features remedies for challenges in unwanted tripping of residual current devices during the obligatory verification of low-voltage systems