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IEEE - C37.92

Low-Energy Analog Interfaces between Protective Relays and Power System Signal Sources

active, Most Current
Organization: IEEE
Publication Date: 15 February 2023
Status: active
Page Count: 32
scope:

This standard defines the performance requirements of the interface between voltage or current measurement systems with low-energy analog outputs and compliant inputs of protective relays or other substation measuring equipment. These measurement systems reproduce the power system waveforms as corresponding scaled analog waveforms.

Purpose

This standard defines the electrical performance requirements of an analog interface intended for use between voltage and current transducers used to produce power system measurements and protective relays or metering instruments that make use of those measurements for protection and control applications. Transducers may be of any type, such as magnetically or capacitively coupled, resistive or capacitive dividers, or optical transducers, and may use electronics to provide an output analog signal as defined by this standard that is a scaled representation of the measured instantaneous voltage or current.

Document History

C37.92
February 15, 2023
Low-Energy Analog Interfaces between Protective Relays and Power System Signal Sources
This standard defines the performance requirements of the interface between voltage or current measurement systems with low-energy analog outputs and compliant inputs of protective relays or other...
March 20, 2005
Analog Inputs to Protective Relays from Electronic Voltage and Current Transducers
This standard defines the interface between voltage or current transducer systems or sensing systems with analog electronic outputs, and suitably designed protective relays or other substation...
March 20, 2005
Analog Inputs to Protective Relays from Electronic Voltage and Current Transducers
This standard defines the interface between voltage or current transducer systems or sensing systems with analog electronic outputs, and suitably designed protective relays or other substation...
January 1, 1969
Guide for induction motor protection
INTRODUCTION General Format. The application guide for relay protection of squirrel-cage and wound-rotor induction motors presents a review of the generally accepted forms of motor protection and...

References

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