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EN 60909-0:2016

Current

Current

The latest, up-to-date edition.

Short-circuit currents in three-phase a.c. systems - Part 0: Calculation of currents

Published date

10-06-2016

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FOREWORD
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols, subscripts and superscripts
5 Characteristics of short-circuit currents: calculating
   method
6 Short-circuit impedances of electrical equipment
7 Calculation of initial short-circuit current
8 Calculation of peak short-circuit current
9 Calculation of symmetrical breaking current
10 DC component of the short-circuit current
11 Calculation of steady-state short-circuit current
12 Short circuits at the low-voltage side of transformers,
   if one line conductor is interrupted at the high-voltage
   side
13 Terminal short circuit of asynchronous motors
14 Joule integral and thermal equivalent short-circuit
   current
Annex A (normative) - Formulas for the calculation of the
        factors m and n
Annex B (informative) - Nodal admittance and nodal
        impedance matrices
Bibliography
Annex ZA (normative) - Normative references to
         international publications with their
         corresponding European publications

IEC 60909-0:2016 is applicable to the calculation of short-circuit currents in low-voltage three-phase AC systems, and in high-voltage three-phase AC systems, operating at a nominal frequency of 50 Hz or 60 Hz. It establishes a general, practicable and concise procedure leading to results which are generally of acceptable accuracy and deals with the calculation of short-circuit currents in the case of balanced or unbalanced short circuits. This second edition cancels and replaces the first edition published in 2001. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:- contribution of windpower station units to the short-circuit current;- contribution of power station units with ful size converters to the short-circuit current;- new document structure.

Committee
CLC/SR 73
DevelopmentNote
Supersedes HD 533. (11/2001)
DocumentType
Standard
PublisherName
European Committee for Standards - Electrical
Status
Current
Supersedes

CEI EN 60027-7 : 2011 LETTER SYMBOLS TO BE USED IN ELECTRICAL TECHNOLOGY - PART 7: POWER GENERATION, TRANSMISSION AND DISTRIBUTION
UNE-EN 50341-1:2017 Overhead electrical lines exceeding AC 1 kV - Part 1: General requirements - Common specifications
S.R. CLC/TR 50609:2014 TECHNICAL GUIDELINES FOR RADIAL HVDC NETWORKS
KTA 3705 : 2013(R2017) SWITCHGEAR FACILITIES, TRANSFORMERS AND DISTRIBUTION NETWORKS FOR THE ELECTRICAL POWER SUPPLY OF THE SAFETY SYSTEM IN NUCLEAR POWER PLANTS
BS EN 62271-200:2012 High-voltage switchgear and controlgear AC metal-enclosed switchgear and controlgear for rated voltages above 1 kV and up to and including 52 kV
BS EN 50341-1:2012 Overhead electrical lines exceeding AC 1 kV General requirements. Common specifications
BS EN 60519-1:2015 Safety in installations for electroheating and electromagnetic processing General requirements
BS EN 62477-1 : 2012 SAFETY REQUIREMENTS FOR POWER ELECTRONIC CONVERTER SYSTEMS AND EQUIPMENT - PART 1: GENERAL (IEC 62477-1:2012)
EN 62428:2008 Electric power engineering - Modal components in three-phase a.c. systems - Quantities and transformations
EN 62271-201:2014 High-voltage switchgear and controlgear - Part 201: AC solid-insulation enclosed switchgear and controlgear for rated voltages above 1 kV and up to and including 52 kV
EN 60519-1:2015 Safety in installations for electroheating and electromagnetic processing - Part 1: General requirements
EN 60143-1:2015/AC:2017-05 Series capacitors for power systems - Part 1: General
EN 61230:2008 Live working - Portable equipment for earthing or earthing and short-circuiting
HD 60364-5-54:2011/A11:2017 LOW-VOLTAGE ELECTRICAL INSTALLATIONS - PART 5-54: SELECTION AND ERECTION OF ELECTRICAL EQUIPMENT - EARTHING ARRANGEMENTS AND PROTECTIVE CONDUCTORS
EN 50368:2003 Cable cleats for electrical installations
BS EN 61914:2016 Cable cleats for electrical installations
CEI EN 50343 : 2015 RAILWAY APPLICATIONS - ROLLING STOCK - RULES FOR INSTALLATION OF CABLING
I.S. EN 50341-1:2012 OVERHEAD ELECTRICAL LINES EXCEEDING AC 1 KV - PART 1: GENERAL REQUIREMENTS - COMMON SPECIFICATIONS
CEI CLC/TR 50609 : 2014 TECHNICAL GUIDELINES FOR RADIAL HVDC NETWORKS
BS EN 60865-1:2012 Short-circuit currents. Calculation of effects Definitions and calculation methods
BS EN 62428:2008 Electric power engineering. Modal components in three- phase a.c. systems. Quantities and transformations
UNE-EN 61914:2016 Cable cleats for electrical installations
08/30191664 DC : DRAFT OCT 2008 BS EN 50522 - EARTHING OF POWER INSTALLATIONS EXCEEDING 1 KV A.C.
BS EN 50343 : 2014 RAILWAY APPLICATIONS - ROLLING STOCK - RULES FOR INSTALLATION OF CABLING
CLC/TR 50609:2014 Technical Guidelines for Radial HVDC Networks
I.S. EN 50368:2003 CABLE CLEATS FOR ELECTRICAL INSTALLATIONS
I.S. EN 60909-3:2010 SHORT-CIRCUIT CURRENTS IN THREE-PHASE A.C SYSTEMS - PART 3: CURRENTS DURING TWO SEPARATE SIMULTANEOUS LINE-TO-EARTH SHORT-CIRCUITS AND PARTIAL SHORT-CIRCUIT CURRENTS FLOWING THROUGH EARTH
CEI EN 50341-1 : 2013 OVERHEAD ELECTRICAL LINES EXCEEDING AC 1 KV - PART 1: GENERAL REQUIREMENTS - COMMON SPECIFICATIONS
EN 62271-200:2012/AC:2015 HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR - PART 200: AC METAL-ENCLOSED SWITCHGEAR AND CONTROLGEAR FOR RATED VOLTAGES ABOVE 1 KV AND UP TO AND INCLUDING 52 KV (IEC 62271-200:2011)
EN 50341-1:2012 Overhead electrical lines exceeding AC 1 kV - Part 1: General requirements - Common specifications
CEI EN 60519-1 : 2016 SAFETY IN INSTALLATIONS FOR ELECTROHEATING AND ELECTROMAGNETIC PROCESSING - PART 1: GENERAL REQUIREMENTS
12/30260570 DC : 0 BS EN 50341-1 - OVERHEAD ELECTRICAL LINES EXCEEDING AC 1 KV - PART 1: GENERAL REQUIREMENTS - COMMON SPECIFICATIONS
BS EN 50368:2003 Cable cleats for electrical installations
I.S. EN 60027-7:2010 LETTER SYMBOLS TO BE USED IN ELECTRICAL TECHNOLOGY - PART 7: POWER GENERATION, TRANSMISSION AND DISTRIBUTION
S.R. HD 60364-5-54:2011 LOW-VOLTAGE ELECTRICAL INSTALLATIONS - PART 5-54: SELECTION AND ERECTION OF ELECTRICAL EQUIPMENT - EARTHING ARRANGEMENTS AND PROTECTIVE CONDUCTORS
I.S. EN 60865-1:2012 SHORT-CIRCUIT CURRENTS - CALCULATION OF EFFECTS - PART 1: DEFINITION AND CALCULATION METHODS (IEC 60865-1:2011 (EQV))
I.S. EN 50343:2014 RAILWAY APPLICATIONS - ROLLING STOCK - RULES FOR INSTALLATION OF CABLING
PREN 50341-1 : DRAFT 2012 OVERHEAD ELECTRICAL LINES EXCEEDING AC 1 KV - PART 1: GENERAL REQUIREMENTS - COMMON SPECIFICATIONS
BS EN 60143-1:2015 Series capacitors for power systems General
BS EN 60909-3:2010 Short-circuit currents in three-phase a.c systems Currents during two separate simultaneous line-to-earth short-circuits and partial short-circuit currents flowing through earth
BS EN 61230:2008 Live working. Portable equipment for earthing or earthing and short-circuiting
PD CLC/TR 50609:2014 Technical Guidelines for Radial HVDC Networks
BS EN 62271-201:2014 High-voltage switchgear and controlgear AC solid-insulation enclosed switchgear and controlgear for rated voltages above 1 kV and up to and including 52 kV
BS EN 60027-7:2010 Letter symbols to be used in electrical technology Power generation, transmission and distribution
CEI EN 60909-3 : 2011 SHORT-CIRCUIT CURRENTS IN THREE-PHASE A/C SYSTEMS - PART 3: CURRENTS DURING TWO SEPARATE SIMULTANEOUS LINE-TO-EARTH SHORTCIRCUITS AND PARTIAL SHORT-CIRCUIT CURRENTS FLOWING THROUGH EARTH
I.S. EN 61914:2016 CABLE CLEATS FOR ELECTRICAL INSTALLATIONS
UNE-EN 60865-1:2013 Short-circuit currents - Calculation of effects - Part 1: Definitions and calculation methods
I.S. HD 60364-5-54:2011 LOW-VOLTAGE ELECTRICAL INSTALLATIONS - PART 5-54: SELECTION AND ERECTION OF ELECTRICAL EQUIPMENT - EARTHING ARRANGEMENTS AND PROTECTIVE CONDUCTORS
I.S. EN 60519-1:2015 SAFETY IN INSTALLATIONS FOR ELECTROHEATING AND ELECTROMAGNETIC PROCESSING - PART 1: GENERAL REQUIREMENTS
EN 62477-1:2012/A1:2017 SAFETY REQUIREMENTS FOR POWER ELECTRONIC CONVERTER SYSTEMS AND EQUIPMENT - PART 1: GENERAL (IEC 62477-1:2012/A1:2016)
EN 60865-1:2012 Short-circuit currents - Calculation of effects - Part 1: Definitions and calculation methods
EN 61914:2016 Cable cleats for electrical installations
EN 60027-7:2010 Letter symbols to be used in electrical technology - Part 7: Power generation, transmission and distribution
EN 50343 : 2014 AMD 1 2017 RAILWAY APPLICATIONS - ROLLING STOCK - RULES FOR INSTALLATION OF CABLING
EN 60909-3:2010 Short-circuit currents in three-phase a.c systems - Part 3: Currents during two separate simultaneous line-to-earth short-circuits and partial short-circuit currents flowing through earth
UNE-HD 60364-5-54:2015 Low-voltage electrical installations - Part 5-54: Selection and erection of electrical equipment - Earthing arrangements and protective conductors

IEC 60038:2009 IEC standard voltages
IEC 60050-131:2002 International Electrotechnical Vocabulary (IEV) - Part 131: Circuit theory
IEC 60986:2000+AMD1:2008 CSV Short-circuit temperature limits of electric cables with rated voltages from 6 kV (<em>U</em><sub>m</sub> = 7,2 kV) up to 30 kV (<em>U</em><sub>m</sub> = 36 kV)
IEC 60909-3:2009 Short-circuit currents in three-phase AC systems - Part 3: Currents during two separate simultaneous line-to-earth short circuits and partial short-circuit currents flowing through earth
IEC 60050-195:1998 International Electrotechnical Vocabulary (IEV) - Part 195: Earthing and protection against electric shock
EN 60909-3:2010 Short-circuit currents in three-phase a.c systems - Part 3: Currents during two separate simultaneous line-to-earth short-circuits and partial short-circuit currents flowing through earth
IEC TR 60909-1:2002 Short-circuit currents in three-phase a.c. systems - Part 1: Factors for the calculation of short-circuit currents according to IEC 60909-0
IEC 60050-151:2001 International Electrotechnical Vocabulary (IEV) - Part 151: Electrical and magnetic devices
IEC 60949:1988 Calculation of thermally permissible short-circuit currents, taking into account non-adiabatic heating effects
IEC 60865-1:2011 Short-circuit currents - Calculation of effects - Part 1: Definitions and calculation methods
IEC TR 60909-4:2000 Short-circuit currents in three-phase a.c. systems - Part 4: Examples for the calculation of short-circuit currents
EN 62428:2008 Electric power engineering - Modal components in three-phase a.c. systems - Quantities and transformations
EN 60865-1:2012 Short-circuit currents - Calculation of effects - Part 1: Definitions and calculation methods
IEC 62428:2008 Electric power engineering - Modal components in three-phase a.c. systems - Quantities and transformations
EN 60038:2011 CENELEC standard voltages

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