The uses, operating principle and main requirements of the current transformer for differential relay with high impedance were described.
2
阐述了智能型自升流标准电流互感器的原理及其硬件组成，提出抗干扰的措施，以提高检测效率。
This paper expounds the principle and hardware components of intelligent up -flow standard current transformer and points out anti-jamming measures so that detection efficiency can be improved.
3
论述了小电流互感器专用负载箱的原理及技术设计。
Discussing the principle and technical design of special-purpose loading box for small current mutual inductor.
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