IEC 60255-151:2009
Collections
International IEC standards
Publication date
August 2009
Number of pages
63 p.
Reference
IEC 60255-151:2009
IEC 60255-151:2009
August 2009
International standard
Current
Measuring relays and protection equipment - Part 151: Functional requirements for over/under current protection
IEC 60255-151:2009 specifies minimum requirements for over/under current relays. It includes a specification of the protection function, measurement characteristics and time delay characteristics. Defines the influencing factors that affect the accuracy under steady state conditions and performance characteristics during dynamic conditions.
Main informations
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Sumary
Measuring relays and protection equipment - Part 151: Functional requirements for over/under current protection
IEC 60255-151:2009 specifies minimum requirements for over/under current relays. It includes a specification of the protection function, measurement characteristics and time delay characteristics. Defines the influencing factors that affect the accuracy under steady state conditions and performance characteristics during dynamic conditions.
IEC 60255-151:2009 specifies minimum requirements for over/under current relays. It includes a specification of the protection function, measurement characteristics and time delay characteristics. Defines the influencing factors that affect the accuracy under steady state conditions and performance characteristics during dynamic conditions.
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Replaced standards
(1)
IEC 60255-3:1989
July 1989
International standard
Cancelled
Electrical relays - Part 3: Single input energizing quantity measuring relays with dependent or independent time
Definitions. Standard values relating to energizing quantities influencing quantities. Fundamental characteristics relating to temperature rises and behaviour in service. Accuracy requirements relating to the characteristic quantity and specified times. Mechanical and electrical requirements. Markings and data. Methods of measurement. The contents of the corrigendum of September 1992 have been included in this copy.
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