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July 6, 2017 | Author: deepak1257 | Category: Electrical Substation, High Voltage, Strength Of Materials, Transformer, Buckling
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Asea Brown Boveri Pocket Book
Switchgear Manual 10th revised edition
Edited by Hennig Gremmel for ABB Calor Emag Schaltanlagen AG Mannheim and ABB Calor Emag Mittelspannung GmbH Ratingen
Previous editions: (published till 1987 by BBC Brown Boveri, since 1988 by ABB) First edition 1948 Second edition 1951 Second, expanded edition 1951,1955,1956,1957,1958,1960 Third edition 1965 Fourth edition 1973 (in English 1974) Fifth edition 1975 (also English) Sixth edition 1977 (in English 1978) Seventh edition 1979 (in German only) Eighth edition 1987, 1988 (in English 1988) Ninth edition 1992,1994 (in English 1993 and 1995) Tenth edition 1999 (in English 2001) Cornelsen Verlag, Berlin 10th revised edition ISBN 3-46448236-7 The tenth edition in English is a translation of the German edition published towards the end of 1999 by STAR Deutschland GmbH Member of STAR Group However, DIN designation and publication dates of the VDE specifications in section 17.1 are updated to the start at the end 2000.
All rights reserved Circuit diagrams and data included in this book are published without reference to their patent status. Extracts from standards are published by permission of "DIN - Deutsches Institut für Normung e.V." (DIN German Institute for Standardization) and of "VDE Verband der Elektrotechnik Elektronik Informationstechnik e.V.” (VDE Association for Electrical, Electronic & Information Technologies). The authoritative standards for the user are the latest editions, which can be obtained from VDE-VERLAG GMBH, Bismarckstrasse 33, D-10625 Berlin and from Beuth Verlag GmbH, Burggrafenstrasse 6, D-10787 Berlin. Copyright © 1999/2001 by ABB Calor Emag Schaltanlagen AG, Mannheim Printed by: Central-Druck Trost GmbH & Co., Heusenstamm Printed in the Federal Republic of Germany
Foreword to the tenth edition More than 50 years after publication of the first edition of the BBC switchgear manual by A. Hoppner, the 10th revised edition is now available as the ABB Calor Emag switchgear manual. As always, it is intended for both experienced switchgear professionals as well as beginners and students.
The 10th edition has been prepared under the direction of the two German ABB companies listed as editors. The products shown as examples to explain the technical statements conform to the practice in the area of switchgear in Germany, and they are products that are manufactured by ABB for the market in this country.
In their efforts to be as up to date as possible, a team of authors comprising experienced engineers from all the relevant areas has described the current and future solutions and technologies. Not only is the technology of switchgear installations and apparatus in the areas of low, medium and high voltage described but related areas such as digital control systems, CAD/CAE methods, project planning, network calculation, electromagnetic compatibility (EMC), etc. are also considered.
In the last few years there has been significant progress in standardization in the implementation of international unified standards. DKE, as the organization responsible for standardization in the area of electrical technology in Germany, has taken account of this development with a new system of numbering DIN and VDE standards. Under this system, since 1993 standards that include safety specifications have their original publication number (e.g. IEC ..., EN ...) as the DIN designation and also a VDE classification number. Section 17 of this book describes this. There, the list of standards shows the complete designations in their current version, however, at the moment not all standards have a DIN designation under the above system. The other sections of the book sometimes also use the complete designation, which however is somewhat cumbersome in daily usage, and sometimes the DIN numbering only and sometimes also the VDE classification, which best indicates the connections.
We would like to thank all involved in the preparation of this book, including the authors of earlier editions, for their valuable suggestions and contributions.
Mannheim and Ratingen, November 1999 / June 2001
Schaltanlagen AG
Mittelspannung GmbH
The following have assisted with the preparation of the 10th edition of this handbook with their own contributions or by editing sections: Klaus Arp, Klaus-Dieter Bäsel, Volker Biewendt, Kurt Blüm, Dietmar Borries, Thomas Braun, Andreas Breuer, Reiner Christmann, Joachim Dobberstein, Karl-Heinz Fettback-Heyden, Franz Fretz, Walter Gentz, Hennig Gremmel, Michael Häussler, Kurt Haneke, Karl-Heinz Hartung, Erich Hebach, Ralf Heinemeyer, Erwin Himmer, Bernhard Hof, Peter Hoyer, Horst Issing, Eckhard Junghahn, Gerald Kopatsch, Ralf Krumm, Martin Lauersdorf, Manfred Mathis, Manfred F. Nehring, Gerhard Noller, Wilhelm Oehmig, Peter Peknice, Horst Plettner, Rolf Pöhlmann, Hans-Gerd Post, Helge Postler, Volker Rees, Peter Reinhardt, Ulrich Reininghaus, Heinrich Remde, Peter Röhrig, Eberhard Rörich, Rolf Rotterdam, Harald Schippel, Gerhard Schmidt, Joachim Schneider, Reinhard Scholz, Herrmann Seidl, Hans Joachim Straube, Woftgang Tettenbom, Andreas Underbrink, Hans Unger, Gerhard Voss, Rolf Wittkämper, Thomas Wotschokowsky, Benjamin Weber, Bodo Zahn, Claus-Dieter Ziebell, Werner Zimmerli, Werner Zimmermann. VI
Fundamental Physical and Technical Terms . . . .
General Electro technical Formulae . . . . . . . . . . .
Calculation of Short-Circuit Currents in ThreePhase Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Dimensioning Switchgear Installations . . . . . . . . .
Protective Measures for Persons and Installations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Methods and Aids for Planning Installations . . . .
Low-Voltage Switchgear . . . . . . . . . . . . . . . . . . . . .
Switchgear and Switchgear Installations for HighVoltage up to and including 52 kV (Medium Voltage)
High-Current Switchgear . . . . . . . . . . . . . . . . . . . .
High-Voltage Apparatus . . . . . . . . . . . . . . . . . . . . .
High-Voltage Switchgear Installations . . . . . . . . . .
Transformers and Other Equipment for Switchgear Installations . . . . . . . . . . . . . . . . . . . .
Conductor Material and Accessories for Switchgear Installations . . . . . . . . . . . . . . . . . . . .
Protection and Control Systems in Substations and Power Networks . . . . . . . . . . . . . . . . . . . . . . . .
Secondary Installations . . . . . . . . . . . . . . . . . . . . .
Materials and Semi-Finished Products for Switchgear Installations . . . . . . . . . . . . . . . . . . . . .
Subject Index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fundamental Physical and Technical Terms
Units of physical quantities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
The international system of units (SI) . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Other units still in common use; metric, British and US measures . . . . . . 16 Fundamental physical constants . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Physical, chemical and technical values . . . . . . . . . . . . . . . . . . . . . 23
Electrochemical series . . . . . . . . . . . . . . . . . . . Faraday's law . . . . . . . . . . . . . . . . . . . . . . . . . Thermoelectric series . . . . . . . . . . . . . . . . . . . pH value . . . . . . . . . . . . . . . . . . . . . . . . . . . . Heat transfer . . . . . . . . . . . . . . . . . . . . . . . . . Acoustics, noise measurement, noise abatement Technical values of solids, liquids and gases. . . .
Strength of materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Fundamentals and definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Tensile and compressive strength . . . . . . . . . . . . . . . . . . . . . . . . . . . . Bending strength . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Loading on beams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Buckling strength . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Maximum permissible buckling and tensile stress for tubular rods . . . . . . Shear strength . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Moments of resistance and moments of inertia . . . . . . . . . . . . . . . . . . .
Geometry, calculation of areas and solid bodies . . . . . . . . . . . . . . . . 46
Area of polygons . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46 Areas and centres of gravity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47 Volumes and surface areas of solid bodies . . . . . . . . . . . . . . . . . . . . . . 48
General Electrotechnical Formulae
Electrotechnical symbols as per DIN 1304 Part 1 . . . . . . . . . . . . . . . 51
Alternating-current quantities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
Electrical resistances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Definitions and specific values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59 Resistances in different circuit configurations . . . . . . . . . . . . . . . . . . . . 60 The influence of temperature on resistance . . . . . . . . . . . . . . . . . . . . . 62
Relationships between voltage drop, power loss and conductor cross-section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
. . . . . . . . . . . . . . . . . 23 . . . . . . . . . . . . . . . . . 23 . . . . . . . . . . . . . . . . . 25 . . . . . . . . . . . . . . . . . 26 . . . . . . . . . . . . . . . . . 26 . . . . . . . . . . . . . . . . . 29 . . . . . . . . . . . . . . . . . 32 36 37 38 39 41 42 43 45
Current input of electrical machines and transformers . . . . . . . . . . . 66
Attenuation constant a of transmission systems . . . . . . . . . . . . . . . 68
Calculation of Short-Circuit Currents in Three-Phase Systems
Terms and definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
Terms as per DIN VDE 0102 / IEC 909 . . . . . . . . . . . . . . . . . . . . . . . . 69 Symmetrical components of asymmetrical three-phase systems . . . . . . . 70
Fundamentals of calculation according to DIN VDE 0102 / IEC 909.. . 71
Impedances of electrical equipment . . . . . . . . . . . . . . . . . . . . . . . . . 83
System infeed . . . . . . . . . . . . . . Electrical machines . . . . . . . . . . . Transformers and reactors . . . . . . Three-phase overhead lines . . . . . Three-phase cables . . . . . . . . . . Busbars in switchgear installations
Examples of calculation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 103
Effect of neutral point arrangement on fault behaviour in three-phase high-voltage networks over 1 kV . . . . . . . . . . . . . . . 111
Dimensioning Switchgear Installations
Insulation rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113
Dimensioning of power installations for mechanical and thermal short-circuit strength . . . . . . . . . . . . . . . . . . . . . . . . . 120
Dimensioning of bar conductors for mechanical short-circuit strength . Dimensioning of stranded conductors for mechanical short-circuit strength . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Horizontal span displacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . Mechanical stress on cables and cable fittings in the event of short circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Rating the thermal short-circuit current capability . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . 83 . . . . . . . . . . . . . . . . . . . . . . . . . . . 83 . . . . . . . . . . . . . . . . . . . . . . . . . . . 86 . . . . . . . . . . . . . . . . . . . . . . . . . . . 89 . . . . . . . . . . . . . . . . . . . . . . . . . . . 96 . . . . . . . . . . . . . . . . . . . . . . . . . . 102
. . 122 . . 133 . . 142 . . 145 . . 146
Dimensioning of wire and tubular conductors for static loads and electrical surface-field strength . . . . . . . . . . . . . . . . . . . . . . . . 150
Calculation of the sag of wire conductors in outdoor installations . . . . . . 150 Calculation of deflection and stress of tubular busbars . . . . . . . . . . . . . 156 Calculation of electrical surface field strength . . . . . . . . . . . . . . . . . . . 158
Dimensioning for continuous current rating . . . . . . . . . . . . . . . . . . 159
Temperature rise in enclosed switchboards . . . . . . . . . . . . . . . . . . . . . 159 Ventilation of switchgear and transformer rooms . . . . . . . . . . . . . . . . . 161 IX
. . . . . 164 . . . . . 167 . . . . . 168 . . . . . 169
Forced ventilation and air-conditioning of switchgear installations Temperature rise in enclosed busbars . . . . . . . . . . . . . . . . . . . Temperature rise in insulated conductors . . . . . . . . . . . . . . . . . Longitudinal expansion of busbars. . . . . . . . . . . . . . . . . . . . . .
Rating power systems for earthquake safety . . . . . . . . . . . . . . . . . 170
General principles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 170 Experimental verification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 172 Verification by calculation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 173
Minimum clearances, protective barrier clearances and widths of gangways . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 174
Minimum clearances and protective barrier clearances in power systems with rated voltages over 1 kV (DIN VDE 0101) . . . . . . 175 Walkways and gangways in power installations with rated voltages over 1kV (DIN VDE0101) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 178 Gangway widths in power installations with rated voltages of up to 1 kV (DIN VDE 0100 Part 729) . . . . . . . . . . . . . . . . . . . . . . . 182
Civil construction requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . 183
Indoor installations . . . . . . . . . . . . . . . Outdoor installations . . . . . . . . . . . . . . Installations subject to special conditions Battery compartments . . . . . . . . . . . . . Transformer installation . . . . . . . . . . . . Fire prevention . . . . . . . . . . . . . . . . . . Shipping dimensions . . . . . . . . . . . . . .
Protective Measures for Persons and Installations
Electric shock protection in installations up to 1000V as per DIN VDE 0100 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 197
Protection against direct contact (basic protection). . . . . . Protection in case of indirect contact (fault protection) . . . Protection by extra low voltage . . . . . . . . . . . . . . . . . . . Protective conductors, PEN conductors and equipotential bonding conductors . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . 184 . . . . . . . . . . . . . . . . . . . . . . 186 . . . . . . . . . . . . . . . . . . . . . . 187 . . . . . . . . . . . . . . . . . . . . . . 187 . . . . . . . . . . . . . . . . . . . . . . 189 . . . . . . . . . . . . . . . . . . . . . . 191 . . . . . . . . . . . . . . . . . . . . . . 195
. . . . . . . . . . 197 . . . . . . . . . . 199 . . . . . . . . . . 202 . . . . . . . . . . 203
Protection against contact in installations above 1000V as per DIN VDE 0101 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 207
Protection against direct contact . . . . . . . . . . . . . . . . . . . . . . . . . . . . 207 Protection in the case of indirect contact. . . . . . . . . . . . . . . . . . . . . . . 208
Earthing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 210
Fundamentals, definitions and specifications . . . . . . . . . . . . . . . . . . . . 210 Earthing material. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 214
Dimensioning of earthing systems . . . . . . . . . . . . . . . . . . . . . . . . . . . 217 Earthing measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 222
Lightning protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 222
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Methods of lightning protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Overhead earth wires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Lightning rods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electromagnetic compatibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . 230
Origin and propagation of interference quantities . . . . . . . . . . . . . . . . 233 Effect of interference quantities on interference sinks . . . . . . . . . . . . . . 237 EMC measures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 238
Partial-discharge measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . 247
Partial-discharge processes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 249 Electrical partial-discharge measurement procedures . . . . . . . . . . . . . 251
Effects of climate and corrosion protection . . . . . . . . . . . . . . . . . . 254
5.7.1 5.7.2 5.7.3 5.7.4
Climates . . . . . . . . . . . . . . . . . . . . . . . . . Effects of climate and climatic testing . . . . . . Reduction of insulation capacity by humidity . Corrosion protection . . . . . . . . . . . . . . . . .
Degrees of protection for electrical equipment of up to 72.5 kV (VDE 0470 Part 1, EN 60529) . . . . . . . . . . . . . . . . . 263
Methods and Aids for Planning Installations
Planning of switchgear installations . . . . . . . . . . . . . . . . . . . . . . . . 265
6.1.1 6.1.2 6.1.3 6.1.4 6.1.5 6.1.6 6.1.7
Concept, boundary conditions, pc calculation aids . . Planning of high-voltage installations . . . . . . . . . . . Project planning of medium-voltage installations . . . Planning of low-voltage installations. . . . . . . . . . . . Calculation of short-circuit currents, computer-aided Calculation of cable cross-sections, computer-aided Planning of cable routing, computer-aided . . . . . . .
Reference designations and preparation of documents . . . . . . . . . . 282
Item designation of electrical equipment as per DIN 40719 Part 2 Preparation of documents . . . . . . . . . . . . . . . . . . . . . . . . . . . Classification and designation of documents . . . . . . . . . . . . . . . Structural principles and reference designation as per IEC 61346
CAD/CAE methods applied to switchgear engineering . . . . . . . . . . 301
Terminology, standards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 301 Outline of hardware and software for CAD systems . . . . . . . . . . . . . . . 304
222 223 225 227
. . . . . . . . . . . . . . . . . . . 254 . . . . . . . . . . . . . . . . . . . 258 . . . . . . . . . . . . . . . . . . . 259 . . . . . . . . . . . . . . . . . . . 261
. . . . . . . . . . . . . . 265 . . . . . . . . . . . . . . 269 . . . . . . . . . . . . . . 272 . . . . . . . . . . . . . . 275 . . . . . . . . . . . . . . 279 . . . . . . . . . . . . . . 281 . . . . . . . . . . . . . . 281 . . . . . 282 . . . . . 293 . . . . . 296 . . . . . 299
Overview of CAD applications in ABB switchgear engineering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 307
Drawings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 312
6.4.1 6.4.2 6.4.3 6.4.4 6.4.5 6.4.6
Drawing formats . . . . . . . . . . . . . . . . Standards for representation . . . . . . . Lettering in drawings, line thicknesses . Text panel, identification of drawing . . . Drawings for switchgear installations . . Drawing production, drafting aids . . . .
Switchgear apparatus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 319
Low-voltage switchgear as per VDE 0660 Part 100 and following parts, EN 60947 -... and IEC 60947 . . . Low-voltage fuses as per VDE 0636 Part 10 and following parts, EN 60269-... IEC60269- . . . . . . . Protective switchgear for household and similar uses . Selectivity. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Backup protection . . . . . . . . . . . . . . . . . . . . . . . . .
Low-voltage switchgear installations and distribution boards . . . . . 346
7.2.1 7.2.2 7.2.3 7.2.4 7.2.5 7.2.6 7.2.7 7.2.8 7.2.9 7.2.10 7.2.11 7.2.12 7.2.13
Basics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Standardized terms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Classification of switchgear assemblies . . . . . . . . . . . . . . . . . . . . . . . Internal subdivision by barriers and partitions . . . . . . . . . . . . . . . . . . . Electrical connections in switchgear assemblies . . . . . . . . . . . . . . . . . Verification of identification data of switchgear assemblies . . . . . . . . . . Switchgear assemblies for operation by untrained personnel . . . . . . . . . Retrofitting, changing and maintaining low-voltage switchgear assemblies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Modular low-voltage switchgear system (MNS system) . . . . . . . . . . . . . Low-voltage distribution boards in cubicle-type assembly . . . . . . . . . . . Low-voltage distribution boards in multiple box-type assembly . . . . . . . . Systems for reactive power compensation . . . . . . . . . . . . . . . . . . . . . Control systems for low-voltage switchgear assemblies . . . . . . . . . . . .
Design aids . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 368
Keeping to the temperature-rise limit . . . . . . . . . . . . . . . . . . . . . . . . . .368 Internal arc test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 370 Verification of the short-circuit current capability of busbar systems . . . . 371 Calculation programs for planning and design of low-voltage substations 371
Rated voltage 690 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 372
Selected areas of application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 372
. . . . . . . . . . . . . . . . . . . . . . . 312 . . . . . . . . . . . . . . . . . . . . . . . 313 . . . . . . . . . . . . . . . . . . . . . . . 315 . . . . . . . . . . . . . . . . . . . . . . . 316 . . . . . . . . . . . . . . . . . . . . . . . 317 . . . . . . . . . . . . . . . . . . . . . . . 318
. . . . . . . . . . . . . 319 . . . . . . . . . . . . . 333 . . . . . . . . . . . . . 339 . . . . . . . . . . . . . 342 . . . . . . . . . . . . . 345 346 347 348 350 351 351 353 353 353 360 362 364 365
Design of low-voltage substations to withstand induced vibrations . . . . . 372 Low-voltage substations in internal arc-proof design for offshore applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 373 Substations for shelter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 374
Switchgear and Switchgear Installations for High-Voltage up to and including 52 kV (Medium Voltage)
Switchgear apparatus (≤ 52kV) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 375
8.1.1 8.1.2 8.1.3 8.1.4 8.1.5 8.1.6 8.1.7
Disconnectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 375 Switch-disconnectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 375 Earthing switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 376 Position indication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 377 HV fuse links (DIN EN 60 282-1 (VDE 0670 Part 4)) . . . . . . . . . . . . . . 377 Is-limiter® - fastest switching device in the world . . . . . . . . . . . . . . . . . .380 Circuit-breakers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 382
Switchgear installations (≤ 52 kV). . . . . . . . . . . . . . . . . . . . . . . . . . 386
Specifications covering HV switchgear installations . . . . . . . . . . . . . . . 386 Switchgear as per DIN VDE 0101 . . . . . . . . . . . . . . . . . . . . . . . . . . . 386 Metal-enclosed switchgear as per DIN EN 60298 (VDE 0670 Part 6) . . . 387 Metal-enclosed air-insulated switchgear as per DIN EN 60298 (VDE 0670 Part 6) . . . . . . . . . . . . . . . . . . . . . . . . . 392 Metal-enclosed gas-insulated switchgear under DIN EN 60298 (VDE 0670 Part 6) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 396 Control systems for medium-voltage substations . . . . . . . . . . . . . . . . . . . 404
Terminal connections for medium-voltage installations . . . . . . . . . . 405
Fully-insulated transformer link with cables . . . . . . . . . . . . . . . . . . . . 405 SF6-insulated busbar connection . . . . . . . . . . . . . . . . . . . . . . . . . . . 406 Solid-insulated busbar connection . . . . . . . . . . . . . . . . . . . . . . . . . . . 406
Generator circuit-breaker. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 409
Selection criteria for generator circuit-breakers . . . . . . . . . . . . . . . . . . 411 Generator circuit-breaker type ranges HG... and HE... (SF6 gas breaker) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 412 Generator circuit-breaker type DR (air-blast breaker . . . . . . . . . . . . . . 415 Generator circuit-breaker type VD 4 G (vacuum breaker) . . . . . . . . . . . 416
High-current bus ducts (generator bus ducts). . . . . . . . . . . . . . . . . 418
General requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Types, features, system selection . . . . . . . . . . . . . . . . . . . . . . . . . . . Design dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Structural design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Earthing system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Air pressure/Cooling system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
418 419 422 423 424 425 XIII
Definitions and electrical parameters for switchgear . . . . . . . . . . . . 427
Disconnectors and earthing switches. . . . . . . . . . . . . . . . . . . . . . . 432
Rotary disconnectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Single-column (pantograph) disconnector TFB . . . . . . . . . . . . Two-column vertical break disconnectors . . . . . . . . . . . . . . . . Single-column earthing switches . . . . . . . . . . . . . . . . . . . . . . Operating mechanisms for disconnectors and earthing switches
Switch-disconnectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 440
Circuit-breakers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 441
10.4.1 10.4.2 10.4.3 10.4.4 10.4.5
Function, selection . . . . . . . . . . . . . . . . . . . . . . . Design of circuit-breakers for high-voltage (>52kV) . Interrupting principle and important switching cases . Quenching media and operating principle . . . . . . . . Operating mechanism and control . . . . . . . . . . . . .
Instrument transformers for switchgear installations . . . . . . . . . . . 460
10.5.1 10.5.2 10.5.3 10.5.4 10.5.5
Definitions and electrical quantities Current transformer . . . . . . . . . . . Inductive voltage transformers . . . Capacitive voltage transformers . . Non-conventional transformers . . .
Surge arresters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 482
Design, operating principle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 482 Application and selection of MO surge arresters . . . . . . . . . . . . . . . . . 484
High-Voltage Switchgear Installations
. . . . . . 432 . . . . . . 434 . . . . . . 437 . . . . . . 438 . . . . . . 439
. . . . . . . . . . . . . . 441 . . . . . . . . . . . . . . 442 . . . . . . . . . . . . . . 445 . . . . . . . . . . . . . . 452 . . . . . . . . . . . . . . 455
. . . . . . . . . . . . . . . . . . . . . . . . . . 460 . . . . . . . . . . . . . . . . . . . . . . . . . . 464 . . . . . . . . . . . . . . . . . . . . . . . . . . 472 . . . . . . . . . . . . . . . . . . . . . . . . . . 473 . . . . . . . . . . . . . . . . . . . . . . . . . . 475
Summary and circuit configuration . . . . . . . . . . . . . . . . . . . . . . . . 489
Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 489 Circuit configurations for high- and medium-voltage switchgear installations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 490
SF6-gas-insulated switchgear (GIS) . . . . . . . . . . . . . . . . . . . . . . . . 497
11.2.1 11.2.2 11.2.3 11.2.4 11.2.5 11.2.6 11.2.7
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SF6 gas as insulating and arc-quenching medium . GIS for 72.5 to 800 kV . . . . . . . . . . . . . . . . . . . . SMART-GIS . . . . . . . . . . . . . . . . . . . . . . . . . . . Station arrangement . . . . . . . . . . . . . . . . . . . . . Station layouts . . . . . . . . . . . . . . . . . . . . . . . . . SF6-insulated busbar links . . . . . . . . . . . . . . . . .
Outdoor switchgear installations . . . . . . . . . . . . . . . . . . . . . . . . . . 508
Requirements, clearances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 508
. . . . . . . . . . . . . . . 497 . . . . . . . . . . . . . . . 498 . . . . . . . . . . . . . . . 499 . . . . . . . . . . . . . . . 502 . . . . . . . . . . . . . . . 503 . . . . . . . . . . . . . . . 504 . . . . . . . . . . . . . . . 507
Arrangement and components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 509 Switchyard layouts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 517
Innovative HV switchgear technology. . . . . . . . . . . . . . . . . . . . . . . 528
11.4.1 11.4.1.1 11.4.1.2 11.4.1.3 11.4.2 11.4.2.1 11.4.3.1 11.4.3.2
Concepts for the future . . . . . . . . . . . . . . . . . . . . . . . . . . . . Process electronics (sensor technology, PISA) . . . . . . . . . . . . Monitoring in switchgear installations . . . . . . . . . . . . . . . . . . . Status-oriented maintenance . . . . . . . . . . . . . . . . . . . . . . . . Innovative solutions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Compact outdoor switchgear installations . . . . . . . . . . . . . . . . Definition of modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . From the customer requirement to the modular system solution
. . . . . . 528 . . . . . . 528 . . . . . . 528 . . . . . . 529 . . . . . . 531 . . . . . . 531 . . . . . . 540 . . . . . . 540
Installations for high-voltage direct-current (HDVC) transmission . . 541
11.5.1 11.5.2 11.5.3 11.5.4
General . . . . . . . . . . . . . . . . . . . . . . . . . . . Selection of main data for HDVC transmission Components of a HDVC station . . . . . . . . . . Station layout . . . . . . . . . . . . . . . . . . . . . . .
Static var (reactive power) composition (SVC) . . . . . . . . . . . . . . . . 547
11.6.1 11.6.2 11.6.3
Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 547 Types of compensator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 548 Systems in operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 550
Transformers and Other Equipment for Switchgear Installations
Transformers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 551
12.1.1 12.1.2 12.1.3 12.1.4 12.1.5 12.1.6 12.1.7
Design, types and dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Vector groups and connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Impedance voltage, voltage variation and short-circuit current withstand . Losses, cooling and overload capacity . . . . . . . . . . . . . . . . . . . . . . . . Parallel operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Protective devices for transformers . . . . . . . . . . . . . . . . . . . . . . . . . . Noise levels and means of noise abatement . . . . . . . . . . . . . . . . . . . .
Current-limiting reactors EN 60289 (VDE 0532 Part 20) . . . . . . . . . . 566
Dimensioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 566 Reactor connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 568 Installation of reactors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 569
Capacitors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 570
Power capacitors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 570 Compensation of reactive power . . . . . . . . . . . . . . . . . . . . . . . . . . . . 571
. . . . . . . . . . . . . . . . . . 541 . . . . . . . . . . . . . . . . . . 542 . . . . . . . . . . . . . . . . . . 543 . . . . . . . . . . . . . . . . . . 546
551 554 556 559 562 564 565
Resistor devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 579
Rectifiers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 581 XV
Conductor Materials and Accessories for Switchgear Installations
Busbars, stranded-wire conductors and insulators . . . . . . . . . . . . . 587
13.1.1 13.1.2 13.1.3 13.1.4 13.1.5
Properties of conductor materials . . . . . . . . . . . . . Busbars for switchgear installations . . . . . . . . . . . . Drilled holes and bolted joints for busbar conductors Technical values for stranded-wire conductors. . . . . Post-type insulators and overhead-line insulators . .
Cables, wires and flexible cords . . . . . . . . . . . . . . . . . . . . . . . . . . . 645
13.2.1 13.2.2 13.2.3 13.2.4 13.2.5 13.2.6 13.2.7 13.2.8
Specifications, general . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Current-carrying capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . Selection and protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . Installation of cables and wires . . . . . . . . . . . . . . . . . . . . . . . Cables for control, instrument transformers and auxiliary supply in high-voltage switchgear installations . . . . . . . . . . . . . . . . . . Telecommunications cables . . . . . . . . . . . . . . . . . . . . . . . . . Data of standard VDE, British and US cables . . . . . . . . . . . . . Power cable accessories for low- and medium- voltage . . . . . .
Safe working equipment in switchgear installations . . . . . . . . . . . . 706
Protection and Control Systems in Substations and Power Networks
. . . . . . . . . . . . . . 587 . . . . . . . . . . . . . . 588 . . . . . . . . . . . . . . 609 . . . . . . . . . . . . . . 617 . . . . . . . . . . . . . . 627 . . . . . . 645 . . . . . . 647 . . . . . . 672 . . . . . . 680 . . . . . . 684 . . . . . . 687 . . . . . . 689 . . . . . . 696
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 711
Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 713
14.2.1 14.2.2 14.2.3 14.2.4
Protection relays and protection systems . . . . . . Advantages of numeric relays . . . . . . . . . . . . . . Protection of substations, lines and transformers . Generator unit protection . . . . . . . . . . . . . . . . .
Control, measurement and regulation (secondary systems) . . . . . . 720
14.3.1 14.3.2 14.3.3 14.3.4 14.3.5 14.3.6 14.3.7 14.3.8 14.3.9 14.3.10 14.3.11
D.C. voltage supply . . . . . . . . . . . . . . . . Interlocking . . . . . . . . . . . . . . . . . . . . . . Control . . . . . . . . . . . . . . . . . . . . . . . . . Indication . . . . . . . . . . . . . . . . . . . . . . . . Measurement . . . . . . . . . . . . . . . . . . . . . Synchronizing . . . . . . . . . . . . . . . . . . . . . Metering . . . . . . . . . . . . . . . . . . . . . . . . Recording and logging . . . . . . . . . . . . . . . Automatic switching control . . . . . . . . . . . Transformer control and voltage regulation . Station control rooms . . . . . . . . . . . . . . . .
Station control with microprocessors . . . . . . . . . . . . . . . . . . . . . . . 746
Outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 746
. . . . . . . . . . . . . . . . 713 . . . . . . . . . . . . . . . . 716 . . . . . . . . . . . . . . . . 717 . . . . . . . . . . . . . . . . 717
. . . . . . . . . . . . . . . . . . . . 721 . . . . . . . . . . . . . . . . . . . . 721 . . . . . . . . . . . . . . . . . . . . 722 . . . . . . . . . . . . . . . . . . . . 724 . . . . . . . . . . . . . . . . . . . . 725 . . . . . . . . . . . . . . . . . . . . 731 . . . . . . . . . . . . . . . . . . . . 732 . . . . . . . . . . . . . . . . . . . . 738 . . . . . . . . . . . . . . . . . . . . 739 . . . . . . . . . . . . . . . . . . . . 742 . . . . . . . . . . . . . . . . . . . . 745
14.4.2 14.4.3 14.4.4
Microprocessor and conventional secondary systems compared . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 746 Structure of computerized control systems . . . . . . . . . . . . . . . . . . . . . 747 Fibre-optic cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 751
Network control and telecontrol . . . . . . . . . . . . . . . . . . . . . . . . . . . 753
14.5.1 14.5.2
Functions of network control systems. . . . . . . . . . . . . . . . Control centres with process computers for central network management . . . . . . . . . . . . . . . . . . . . . Control centres, design and equipment . . . . . . . . . . . . . . Telecontrol and telecontrol systems . . . . . . . . . . . . . . . . . Transmission techniques . . . . . . . . . . . . . . . . . . . . . . . . Technical conditions for telecontrol systems and interfaces with substations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
14.5.3 14.5.4 14.5.5 14.5.6
. . . . . . . . . 753 . . . . . . . . . 755 . . . . . . . . . 760 . . . . . . . . . 763 . . . . . . . . . 766 . . . . . . . . . 767
Load management , ripple control . . . . . . . . . . . . . . . . . . . . . . . . . 771
14.6.1 14.6.2 14.6.3 14.6.4 14.6.5
Purpose of ripple control and load management . . . Principle and components for ripple-control systems Ripple-control command centre . . . . . . . . . . . . . . . Equipment for ripple control . . . . . . . . . . . . . . . . . Ripple control recievers . . . . . . . . . . . . . . . . . . . .
Secondary Installations
Stand-by power systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 779
Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Stand-by power with generator systems . . . . . . . . . . . . . . . . . . . . . . Uninterruptible power supply with stand-by generating sets (rotating UPS installations) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Uninterruptible power supply with static rectifiers (static UPS installations) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . 771 . . . . . . . . . . . . . . 772 . . . . . . . . . . . . . . 774 . . . . . . . . . . . . . . 775 . . . . . . . . . . . . . . 777
779 780 783 785
High-speed transfer devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 792
15.2.1 15.2.2 15.2.3 15.2.4 15.2.5
Applications, usage, tasks . . . . . . . . . Integration into the installation. . . . . . . Design of high-speed transfer devices. . Functionality . . . . . . . . . . . . . . . . . . . Types of transfer . . . . . . . . . . . . . . . .
Stationary batteries and battery installations, DIN VDE 0510, Part 2 798
15.3.1 15.3.2 15.3.3 15.3.4 15.3.5
Types and specific properties of batteries . Charging and discharging batteries . . . . . Operating modes for batteries . . . . . . . . . Dimensioning batteries . . . . . . . . . . . . . Installing batteries, types of installation . .
Installations and lighting in switchgear installations . . . . . . . . . . . . 806
Determining internal requirements for electrical power for equipment . . . 806
. . . . . . . . . . . . . . . . . . . . . . . 792 . . . . . . . . . . . . . . . . . . . . . . . 794 . . . . . . . . . . . . . . . . . . . . . . . 794 . . . . . . . . . . . . . . . . . . . . . . . 795 . . . . . . . . . . . . . . . . . . . . . . . 795 . . . . . . . . . . . . . . . . . . . . . 798 . . . . . . . . . . . . . . . . . . . . . 802 . . . . . . . . . . . . . . . . . . . . . 804 . . . . . . . . . . . . . . . . . . . . . 805 . . . . . . . . . . . . . . . . . . . . . 805
15.4.2 15.4.3 15.4.4
Layout and installation systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 807 Lighting installations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 813 Fire-alarm systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 819
Compressed-air systems in switchgear installations . . . . . . . . . . . . 821
15.5.1 15.5.2 15.5.3 15.5.4 15.5.5 15.5.6
Application, requirements, regulations . . . . . . . . . . . . . . . . . . . . . . . . Physical basics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Design of compressed-air systems . . . . . . . . . . . . . . . . . . . . . . . . . . Rated pressures and pressure ranges . . . . . . . . . . . . . . . . . . . . . . . . Calculating compressed-air generating and storage systems. . . . . . . . . Compressed-air distribution systems. . . . . . . . . . . . . . . . . . . . . . . . .
Materials and Semi-Finished Products for Switchgear Installations
Iron and steel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 829
16.1.1 16.1.2 16.1.3
Structural steel, general . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 829 Dimensions and weights of steel bars, sections and tubes . . . . . . . . . . 830 Stresses in steel components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 837
Non-ferrous metals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 837
16.2.1 16.2.2 16.2.3
Copper for electrical engineering . . . . . . . . . . . . . . . . . . . . . . . . . . . . 837 Aluminium for electrical engineering. . . . . . . . . . . . . . . . . . . . . . . . . . 837 Brass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 838
Insulating materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 839
Solid insulating materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 839 Liquid insulating materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 844 Gaseous insulating materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 845
Semi-finished products . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 845
16.4.1 16.4.2 16.4.3 16.4.4 16.4.5
Dimensions and weights of metal sheets, DIN EN 10130 Slotted steel strip . . . . . . . . . . . . . . . . . . . . . . . . . . . Screws and accessories . . . . . . . . . . . . . . . . . . . . . . Threads for bolts and screws . . . . . . . . . . . . . . . . . . . Threads for electrical engineering . . . . . . . . . . . . . . . .
DIN VDE specifications and IEC publications for substation design . 851
Application of European directives to high-voltage switchgear installations. CE mark . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 887
Quality in switchgear . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 887
Notable events and achievements in the history of ABB switchgear technology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 889
821 821 824 825 826 828
. . . . . . . . . . . 845 . . . . . . . . . . . 846 . . . . . . . . . . . 847 . . . . . . . . . . . 849 . . . . . . . . . . . 850
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