Enhanced descriptions from Syndetics:

The first book to present a practical route to the correct design of electrical networks based on the rules set by IEC 60 909 international standard. The author incorporates his many years of experience in the design and planning of such electrical systems at Siemens, among others. The accompanying software allows users to perform all the necessary calculations with ease, greatly facilitating the planning of electrical systems conforming to the IEC standard.

Table of contents provided by Syndetics

• Foreword (p. V)
• Symbols and Indices (p. XIII)
• 1 Terms and Definitions (p. 1)
• 1.1 Time behavior of the short circuit current (p. 3)
• 1.2 Short circuit path in the positive-sequence system (p. 4)
• 1.3 Classification of short circuit types (p. 5)
• 1.4 Methods of short circuit calculation (p. 7)
• 1.4.1 Equivalent voltage source (p. 7)
• 1.4.2 Superposition method (p. 9)
• 1.4.3 Transient calculation (p. 10)
• 1.5 Calculating with reference variables (p. 10)
• 2 General Information About IEC 60 909 (p. 11)
• 3 The Significance of IEC 60 909 (p. 13)
• 4 Supply Networks (p. 17)
• 4.1 Calculation variables for supply networks (p. 17)
• 4.2 Lines supplied from a single source (p. 17)
• 4.3 Radial networks (p. 18)
• 4.4 Ring networks (p. 18)
• 4.5 Meshed networks (p. 19)
• 5 Network Types for the Calculation of Short Circuit Currents (p. 21)
• 5.1 Low voltage network types (p. 21)
• 5.2 Medium voltage network types (p. 23)
• 6 Systems up to 1 kV (p. 29)
• 6.1 TN systems (p. 29)
• 6.2 Calculation of fault currents (p. 31)
• 6.3 TT systems (p. 34)
• 6.4 IT systems (p. 35)
• 6.5 Transformation of the network types described to equivalent circuit diagrams (p. 36)
• 7 Neutral Point Treatment in Three-phase Networks (p. 39)
• 7.1 Networks with isolated free neutral point (p. 42)
• 7.2 Networks with grounding compensation (p. 43)
• 7.3 Networks with low impedance neutral point treatment (p. 44)
• 8 Impedances of Three-phase Operational Equipment (p. 47)
• 8.1 Network feed-ins (p. 47)
• 8.2 Synchronous machines (p. 49)
• 8.3 Transformers (p. 51)
• 8.3.1 Short circuit current on the secondary side (p. 52)
• 8.3.2 Voltage regulating transformers (p. 57)
• 8.4 Cables and overhead lines (p. 58)
• 8.5 Short circuit current limiting (p. 70)
• 8.6 Asynchronous machines (p. 71)
• 8.7 Consideration of capacitors and non-rotating loads (p. 72)
• 8.8 Consideration of static converters (p. 73)
• 9 Impedance Corrections (p. 75)
• 9.1 Correction factor K[subscript G] for generators (p. 76)
• 9.2 Correction factor K[subscript KW] for power plant block (p. 77)
• 9.3 Correction factor K[subscript T] for transformers with two and three windings (p. 79)
• 10 The Method of Symmetrical Components (p. 81)
• 10.1 Symmetrical components (p. 82)
• 10.2 Impedances of symmetrical components (p. 85)
• 11 Calculation of Short Circuit Currents (p. 91)
• 11.1 Three-pole short circuits (p. 91)
• 11.2 Two-pole short circuits with contact to ground (p. 93)
• 11.3 Two-pole short circuit without contact to ground (p. 93)
• 11.4 Single-pole short circuits to ground (p. 94)
• 11.5 Peak short circuit current i[subscript p] (p. 97)
• 11.6 Symmetrical breaking current I[subscript a] (p. 99)
• 11.7 Steady state short circuit current I[subscript k] (p. 102)
• 12 Motors in three-phase Networks (p. 105)
• 12.1 Short circuits at the terminals of asynchronous motors (p. 105)
• 12.2 Motor groups supplied from transformers with two windings (p. 107)
• 12.3 Motor groups supplied from transformers with different nominal voltages (p. 107)
• 13 Mechanical and Thermal Short Circuit Strength (p. 111)
• 13.1 Mechanical short circuit current strength (p. 111)
• 13.2 Thermal short circuit current strength (p. 112)
• 13.3 Limitation of short circuit currents (p. 120)
• 14 Calculations for Short Circuit Strength (p. 127)
• 14.1 Short circuit strength for medium voltage switchgear (p. 127)
• 14.2 Short circuit strength for low voltage switchgear (p. 128)
• 15 Equipment for Overcurrent Protection (p. 131)
• 16 Short Circuit Currents in DC Systems (p. 143)
• 16.1 Resistances of line sections (p. 145)
• 16.2 Current converters (p. 146)
• 16.3 Batteries (p. 147)
• 16.4 Capacitors (p. 148)
• 16.5 DC motors (p. 149)
• 17 Programs for the Calculation of Short Circuit Currents (p. 151)
• 18 Examples: Calculation of Short Circuit Currents (p. 153)
• 18.1 Example 1: Radial network (p. 153)
• 18.2 Example 2: Proof of protective measures (p. 155)
• 18.3 Example 3: Connection box to service panel (p. 158)
• 18.4 Example 4: Transformers in parallel (p. 159)
• 18.5 Example 5: Connection of a motor (p. 160)
• 18.6 Example 6: Calculation for a load circuit (p. 162)
• 18.7 Example 7: Calculation for an industrial system (p. 164)
• 18.8 Example 8: Calculation of three-pole short circuit current and peak short circuit current (p. 166)
• 18.9 Example 9: Meshed network (p. 168)
• 18.10 Example 10: Supply to a factory (p. 171)
• 18.11 Example 11: Calculation with impedance corrections (p. 172)
• 18.12 Example 12: Connection of a transformer through an external network and a generator (p. 176)
• 18.13 Example 13: Motors in parallel and their contributions to the short circuit current (p. 177)
• 18.14 Example 14: Proof of the stability of low voltage systems (p. 180)
• 18.15 Example 15: Proof of the stability of medium and high voltage systems (p. 182)
• 18.16 Example 16: Calculation for short circuit currents with impedance corrections (p. 193)
• 18.17 Example 17: Calculation with per-unit magnitudes (p. 195)
• Appendices Calculation Tools for Electrical Engineering (p. 197)
• 1 The Elaplan program (p. 199)
• 2 The KUBS plus Program (p. 251)
• Index (p. 261)