CEI EN 61970-456/A1 PDF

FOREWORD

This amendment has been prepared by IEC technical committee 57: Power systems management and associated information exchange. IEC 61970-456:2013 is based on IEC 61970-301 Edition 4 (2013). Both are based on the 61970 UML version CIM14. The amendment is based on IEC 61970-301 Edition 5 (2013) and the 61970 UML version CIM15. For the Topology profile this amendment includes the following changes with respect to the previous edition: a) The classes Name and NameType classes have been added.

b) The class TopologicalNode has been extended with the role ConnectivityNodeContainer.

c) The attribute IdentifiedObject.description has been removed. For the StateVariables profile this edition includes the following changes with respect to the previous edition:

a) The role TopologicalIsland.ToplogicalNodes has been replaced by ToplogicalNode.TopologicalIsland.

b) The documentation of attributes SvPowerFlow.p and SvPowerFlow.q has been updated. c) The attribute SvShuntCompensatorSections.sections has been changed from Integer to Float.

d) The attribute SvShuntCompensatorSections.continuousSections is removed.

e) The attribute SvTapStep.position is changed from Integer to Float.

f) The attribute SvTapStep.continuousPosition is removed.

g) The attribute SvVoltage.angle is changed from radians to degrees.

h) The data types have been elaborated. The text of this amendment is based on the following documents:

FDIS Report on voting 57/1591/FDIS 57/1620/RVD

Full information on the voting for the approval of this amendment can be found in the report on voting indicated in the above table.

The committee has decided that the contents of this amendment and the base publication will remain unchanged until the stability date indicated on the IEC website under "http://webstore.iec.ch" in the data related to the specific publication. At this date, the publication will be

• reconfirmed,

• withdrawn,

• replaced by a revised edition, or

• amended.

A bilingual version of this publication may be issued at a later date.