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IEEE C37.112

Inverse-Time Characteristic Equations for Overcurrent Relays

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Organization: IEEE
Publication Date: 5 December 2018
Status: active
Page Count: 25
scope:

The scope of this standard includes the review of various existing analytic techniques used to represent relay operating characteristic curve shapes and proposes analytical (formula) representation of typical operating characteristic curve shapes to foster some standardization of available inverse-time relay characteristics provided in microprocessor or computer relay applications. 

Purpose

The purpose of this standard is to provide an analytic (formula) representation of typical relay operating characteristic curve shapes of various inverse-time relays to facilitate representation by microprocessor-type relays and promote a degree of standardization in the inverse shape of a selected curve.

Document History

IEEE C37.112
December 5, 2018
Inverse-Time Characteristic Equations for Overcurrent Relays
The scope of this standard includes the review of various existing analytic techniques used to represent relay operating characteristic curve shapes and proposes analytical (formula) representation...
September 19, 1996
Inverse-Time Characteristic Equations for Overcurrent Relays
The scope of this standard includes the review of various existing analytic techniques used to represent relay operating characteristic curve shapes and proposes analytical (formula) representation...
September 19, 1996
Standard Inverse-Time Characteristic Equations for Overcurrent Relays
The scope of this standard includes the review of various existing analytic techniques used to represent relay operating characteristic curve shapes and proposes analytical (formula) representation...
September 19, 1996
Standard Inverse-Time Characteristic Equations for Overcurrent Relays
The scope of this standard includes the review of various existing analytic techniques used to represent relay operating characteristic curve shapes and proposes analytical (formula) representation...

References

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