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The calculation of short-circuit currents is a central task for
Power System engineers, as they are essential parameters for the
design of electrical equipment and installations, the operation of
power systems and the analysis of outages and faults. Short-circuit
Currents gives an overview of the components within power systems
with respect to the parameters needed for short-circuit current
calculation. It also explains how to use the system of symmetrical
components to analyse different types of short-circuits in power
systems. The thermal and elctromagnetic effects of short-circuit
currents on equipment and installations, short-time interference
problems and measures for the limitation of short-circuit currents
are also discussed. Detailed calculation procedures and typical
data of equipment are provided in a separate chapter for easy
reference, and worked examples are included throughout.
Describing in detail how electrical power systems are planned and
designed, this monograph illustrates the required structures of
systems, substations and equipment using international standards
and latest computer methods.
The book discusses the advantages and disadvantages of the
different arrangements within switchyards and of the topologies of
the power systems, describing methods to determine the main design
parameters of cables, overhead lines, and transformers needed to
realize the supply task, as well as the influence of environmental
conditions on the design and the permissible loading of the
equipment. Additionally, general requirements for protection
schemes and the main schemes related to the various protection
tasks are given.
With its focus on the requirements and procedures of tendering and
project contracting, this book enables the reader to adapt the
basics of power systems and equipment design to special tasks and
engineering projects.
Problems of voltage quality and their solutions are becoming
increasingly important with the growth in power electronics and the
high sensitivity of electronic equipment. Translated and updated
from the German original published by VDE-Verlag, this book
successfully details the theoretical and practical background to
low voltage conducted disturbances including harmonics, voltage
fluctuation/flicker and asymmetrical voltages. Each chapter is
illustrated with practical examples and exercises based on the
authors' experience of application problems, including measurement,
assessment and remedial measures. The book is set in the context of
European standards. This book will be of interest to electrical
engineers in industry, utilities and universities, as well as
companies interested in planning, operating and designing power
system equipment.
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