同步相量测量在饱和电流互感器二次电流恢复中的应用

2020 3rd International Youth Scientific and Technical Conference on Relay Protection and Automation (RPA) Pub Date : 2020-10-22 DOI:10.1109/RPA51116.2020.9301740

S. Piskunov, A. Mokeev

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引用次数: 2

摘要

目前，电磁电流互感器作为一次电流变送器广泛应用于电力工业。其设计的一个特点是铁磁磁芯的存在，在电力系统的某些瞬态运行模式下(例如，短路)，铁磁磁芯可能饱和，同时引起二次电流的非线性失真。这会降低继电保护装置[1]的灵敏度和速度。

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Application of Synchrophasor Measurement to Restore the Secondary Current of the Saturated Current Transformer

Currently, electromagnetic current transformers (CT) are widely used in the electric power industry as primary current transmitters. A feature of their design is the presence of a ferromagnetic core, which in certain transient modes of operation of the power system (for example, a short-circuit) can be saturated, while causing non-linear distortion of the secondary current. This can reduce the sensitivity and speed of relay protection devices [1] .

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2020 3rd International Youth Scientific and Technical Conference on Relay Protection and Automation (RPA)

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