PD IEC/TR 60909-2:2008
Current
The latest, up-to-date edition.
Short-circuit currents in three-phase a.c. systems Data of electrical equipment for short-circuit current calculations
Hardcopy , PDF
English
11-13-2008
FOREWORD
1 General
1.1 Scope and object
1.2 Normative references
2 Data for electrical equipment
2.1 General
2.2 Data of typical synchronous machines
2.3 Data of typical two-winding, three-winding
and auto-transformers
2.4 Data of typical overhead lines, single
and double circuits
2.5 Data of typical high-voltage, medium-voltage
and low-voltage cables
2.6 Data of typical asynchronous motors
2.7 Busbars
Annex A (informative) - Information from National
Committees
Bibliography
Describes data of electrical equipment collected from different countries to be used when necessary for the calculation of short-circuit currents in accordance with IEC 60909-0.
Committee |
W/-
|
DevelopmentNote |
Supersedes BS PD7639-2(1994). (02/2009)
|
DocumentType |
Standard
|
Pages |
50
|
PublisherName |
British Standards Institution
|
Status |
Current
|
Supersedes |
This part of IEC 60909 comprises data of electrical equipment collected from different countries to be used when necessary for the calculation of short-circuit currents in accordance with IEC 60909-0.
Generally, electrical equipment data are given by the manufacturers on the name plate or by the electricity supplier.
In some cases, however, the data may not be available. The data in this report may be applied for calculating short-circuit currents in low-voltage networks if they are in accordance with typical equipment employed in the user’s country. The collected data and their evaluation may be used for medium- or high-voltage planning purposes and also for comparison with data given by manufacturers or electricity suppliers. For overhead lines and cables the electrical data may in some cases also be calculated from the physical dimensions and the material following the equations given in this report.
Thus this technical report is an addition to IEC 60909-0. It does not, however, change the basis for the standardized calculation procedure given in IEC 60909-0 and IEC 60909-3.
Standards | Relationship |
IEC TR 60909-2:2008 | Identical |
IEC 60038:2009 | IEC standard voltages |
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 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 60909-0:2016 | Short-circuit currents in three-phase a.c. systems - Part 0: Calculation of currents |
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