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EVS-EN 60255-151:2009

Measuring relays and protection equipment - Part 151: Functional standard for over/under current protection

General information

Valid from 06.01.2010
Base Documents
IEC 60255-151:2009; EN 60255-151:2009
Directives or regulations
None

Standard history

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Date
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This part of IEC 60255 specifies minimum requirements for over/under current relays. This standard includes a specification of the protection function, measurement characteristics and time delay characteristics.  This part of IEC 60255 defines the influencing factors that affect the accuracy under steady state conditions and performance characteristics during dynamic conditions. The test methodologies for verifying performance characteristics and accuracy are also included in this standard.

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