IEEE C37.92-2023
IEEE Standard for Low-Energy Analog Interfaces between Protective Relays and Power System Signal Sources
standard by IEEE , 04/25/2023
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About This Item
Full Description
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.
Abstract
Revision Standard - Active.
Electronic devices that develop or utilize analog signals are not presently covered by standards. Interface connectivity of modern power-system signal transducers based on electronics, such as magneto-optic current transducers and electronic relays, are provided in this standard. The existing standardized levels from familiar magnetic current and voltage transformers are not readily generated by new types of electronic signal transducers.
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