BS EN 60255-121:2014 - Measuring relays and protection equipment. Functional requirements for distance protection

BS EN 60255-121:2014

Measuring relays and protection equipment. Functional requirements for distance protection

Status : Current   Published : July 2014

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PDF

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HARDCOPY



IEC 60255-121:2014 specifies minimum requirements for functional and performance evaluation of distance protection function typically used in, but not limited to, line applications for effectively earthed, three-phase power systems. This standard also defines how to document and publish performance tests. This standard covers distance protection function whose operating characteristic can be defined on an impedance plane and includes specification of the protection function, measurement characteristics, phase selection, directionality, starting and time delay characteristics. The test methodologies for verifying performance characteristics and accuracy are included in this standard. The standard defines the influencing factors that affect the accuracy under steady state conditions and performance characteristics during dynamic conditions. It also includes the instrument transformer requirements for the protection function. The general requirements for measuring relays and protection equipment are defined in IEC 60255-1.




Standard NumberBS EN 60255-121:2014
TitleMeasuring relays and protection equipment. Functional requirements for distance protection
StatusCurrent
Publication Date31 July 2014
Normative References(Required to achieve compliance to this standard)EN 61850, EN 60255-1, IEC 60255-1, IEC 61869-5:2011, IEC 60050, EN 61869-5:2011, IEC 61869-2:2012, IEC 61850, EN 61869-2:2012
Informative References(Provided for Information)No other standards are informatively referenced
International RelationshipsEN 60255-121 (IEC 60255-121:20,IEC 60255-121:2014
Draft Superseded By10/30215568 DC
DescriptorsTransient response, Length, Instrument transformers, Electromagnetic compatibility, Measuring relays, Electrical protection equipment, Voltage regulators
ICS29.120.70
Title in FrenchRelais de mesure et dispositifs de protection. Exigences fonctionnelles pour protection de distance
Title in GermanMessrelais und Schutzeinrichtungen. Funktionsanforderungen für den Distanzschutz
CommitteePEL/95
ISBN978 0 580 70318 8
PublisherBSI
FormatA4
DeliveryYes
Pages152
File Size2.391 MB
Price£342.00


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