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IEEE C37.2-2022

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IEEE Standard for Electrical Power System Device Function Numbers, Acronyms, and Contact Designations

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Revision Standard - Active. The definition and application of function numbers and acronyms for devices and functions used in electrical substations and generating plants and in installations of power utilization and conversion apparatus are covered. The purpose and use of the numbers and acronyms are discussed, and 95 numbers and 22 acronyms are assigned. Function numbers or function acronyms now exist for arc flash detection, clock or timing source, dynamic disturbance recorder, digital fault recorder, disturbance monitoring equipment, environmental data, fault data concentrator, high impedance fault detector, human machine interface, historian, scheme logic, substation metering, phasor data concentrator, phasor measurement unit, power quality monitor, remedial action scheme, remote input/output device, remote terminal unit/data concentrator, sequence of events recorder, and trip circuit monitor. The use of prefixes and suffixes to provide a more specific definition of a function is defined. Device contact designations are also covered.
This standard applies to the definition and application of function numbers and acronyms for devices and functions used in electrical substations, generating plants, and in installations of power utilization and conversion apparatus. Historically, device function numbers have typically represented individual or component devices. These numbers and acronyms may also be used to represent individual functions within multi-function devices or software programs, and that may contain both protection- and non-protection-oriented functions.
A device function number, with an appropriate prefix and appended suffix (or an acronym), is used to identify the function(s) of each device installed in electrical equipment. These numbers and acronyms are to be used in drawings, elementary and connection diagrams, instruction books, publications, and specifications. The device number or acronym may be physically placed on, or adjacent to, each device on the assembled equipment.

SDO IEEE: Institute of Electrical and Electronics Engineers
Document Number C37.2
Publication Date Dec. 14, 2022
Language en - English
Page Count 63
Revision Level
Supercedes
Committee Power System Relaying and Control
Publish Date Document Id Type View
Dec. 14, 2022 C37.2-2022 Revision
Oct. 3, 2008 C37.2-2008 Revision
Nov. 30, 1996 C37.2-1996 Revision
Oct. 10, 1991 C37.2-1991 Revision
Dec. 14, 1987 C37.2-1987 Revision