Belyaeva EN How to calculate the short-circuit current
Belyaeva, EN How to calculate the short-circuit current.-2 nd ed. Pererab. And additional. - M: Energoatomizdat, 1983.- 136 s, ill.- (B-ka of the electrician, issue 544) 35 k. A brief presentation of the methods of calculation of short-circuit currents in electrical installations above 1000 V, illustrated by examples . The first edition was published in 1964 . In the second edition, the material was redesigned in accordance with the new RU on calculation of short-circuit currents, new GOSTs for apparatuses, machines, system of units were taken into account. For qualified electricians, foremen and masters of electrical shops as a practical guide for calculating short circuit currents.
The book in DjVu format.
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Preface to the book "How to calculate the short-circuit current"
The necessity to determine the short-circuit currents during operation can arise: when the power supply circuit of the power plant is changed to test high-voltage electrical equipment, the thermal and electrodynamic action of the short-circuit currents, the suitability of the existing relay protection settings, means, lightning protection, etc .; At a partial replacement of electrical equipment at a power plant or substation, if the machines and apparatuses intended for installation differ from the dismantled by their passport data; If the design data for the object are absent or obsolete and short-circuit currents are currently unknown to the maintenance personnel. Other cases are also possible, due to the change in operating conditions, it is required to perform short circuit current calculations.
The purpose of the book is to teach electrical engineering personnel how to calculate short circuit currents on practical examples.
This edition of the book differs significantly from the previous edition of 1964 due to the fact that during the re-issue the task was to bring the book into line with the development of guidelines for the calculation of short circuits, the selection and verification of apparatus and conductors for the short circuit conditions of the Moscow Power Institute. All numerical examples given in the book are either reworked or reassembled.
The contents of the book "How to calculate the short-circuit current"
Foreword
1. General information about short-circuits
2. Short circuit in a symmetrical three-phase circuit
3. Electrodynamic action of short-circuit currents
4. Thermal action of short-circuit currents
5. Selection of the initial conditions for the calculation of short-circuit currents
6. Compilation and transformation of the substitution scheme
7. Application of a system of relative units for the calculation of short-circuit currents
8. Parameters of the Elements of the Calculation Scheme
9. Calculation of the initial value of the periodic current component of a three-phase short circuit
10. Calculation of short-circuit shock current
11. Determination of the periodic current component of a three-phase short circuit for times up to 0.5 s
12. General ideas about asymmetrical short circuits
13. Testing apparatus and conductors for short-circuit currents
Application. Determination of the design e. Etc. with. And inductive resistance of the generator for the initial moment of short circuit
Bibliography
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