SHORT-CIRCUIT CURRENTS IN D.C. AUXILIARY INSTALLATIONS IN POWER PLANTS AND SUBSTATIONS - PART 1: CALCULATION OF SHORT-CIRCUIT CURRENTS
International Electrotechnical Committee
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]
Covers a method for calculation of short-circuit currents in d.c. auxiliary systems in power plants and substations. Deals only with rectifiers in three-phase a.c. bridge connection. Provides a generally applicable method of calculation which produces results of sufficient accuracy on the conservative side.
| Document Type | Standard |
| Status | Current |
| Publisher | International Electrotechnical Committee |
| Committee | TC 73 |
