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IEC 61660-1:1997

Current

Current

The latest, up-to-date edition.

Short-circuit currents in d.c. auxiliary installations in power plants and substations - Part 1: Calculation of short-circuit currents

Available format(s)

Hardcopy , PDF , PDF 3 Users , PDF 5 Users , PDF 9 Users

Published date

17-06-1997

€244.32
Excluding VAT

FOREWORD
1 General
  1.1 Scope and object
  1.2 Normative references
  1.3 Definitions
  1.4 Symbols and subscripts
2 Calculation of short-circuit currents
  2.1 General
  2.2 Calculating methods
  2.3 Resistance and inductance of conductor
  2.4 Rectifier
  2.5 Battery
  2.6 Capacitor
  2.7 DC motor with independent excitation
3 Calculation of the total short-circuit current
  3.1 Correction factor
  3.2 Superimposing the partial short-circuit currents at
      the short-circuit location
  3.3 Standard approximation function
Annex A Equations for the calculation of lambda[D], kappa[D],
        kappa[C] and t[pC]

Describes method for calculating short-circuit currents in d.c. auxilliary systems in power plants and substations, which can be equipped with the following equipment, acting as short-circuit current sources: - rectifiers in three-phase a.c. bridge connection for 50 Hz; - stationary lead-acid batteries; - smoothing capacitors; - d.c. motors with independent excitation Provides a generally applicable method of calculation which produces results of sufficient accuracy on the conservative side. The contents of the corrigenda of February 1999 and March 2000 have been included in this copy.

DevelopmentNote
Also numbered as BS EN 61660-1. (09/2005) Stability Date: 2017. (10/2012)
DocumentType
Standard
Pages
69
PublisherName
International Electrotechnical Committee
Status
Current

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IEC 60038:2009 IEC standard voltages
IEC 60896-1:1987 Stationary lead-acid batteries - General requirements and methods of test. Part 1: Vented types
IEC 60050-151:2001 International Electrotechnical Vocabulary (IEV) - Part 151: Electrical and magnetic devices
IEC 60050-441:1984 International Electrotechnical Vocabulary (IEV) - Part 441: Switchgear, controlgear and fuses
IEC 61660-2:1997 Short-circuit currents in d.c. auxiliary installations in power plants and substations - Part 2: Calculation of effects
IEC 60909:1988 Short-circuit current calculation in three-phase a.c. systems

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