IEEE C37.2-1991 pdf download.IEEE Standard Electrical Power System Device Function Numbers.
Abstract: The definition and application of function numbers for devices used in electrical substations and generating plants and in installations of power utilization and conversion apparatus are covered. The purpose of the numbers is discussed, and 94 numbers are assigned. The use of prefixes and suffixes to provide a more specific definition of the function is considered. Device contact designation is also covered.
Keywords: device functions, device function numbers, function numbers, switchgear.
1.1 Scope. IEEE C37.2-1991 applies to the definition and application of function numbers for devices used in electrical substations and generating plants and in installations of power utilization and conversion apparatus.
2. Purpose of Device,Function Numbers
A device function number, with an appro priate prefix and suffix where necessary, is used to identify the function of each device in all types of partial-automatic and automatic switchgear and in many types of manual switchgear. These numbers are to be used in drawings, elementary and connection diagrams, instruction books, publications, and specifications. In addition, for automatic switchgear, the number may be placed on, or adjacent to, each device on the assembled equipment so that the device may be readily identified.
3. Standard Device Fuxkn Numbers
3.1 Standard Device Function Numbers. Each number with its corresponding function name and the general description of each function is listed below.IEEE C37.2-1991 pdf download.
IEEE C37.2-1991 pdf download
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