Design of High Frequency Transient Current Sensor for Powerline On-Line Measurement

Detecting extremely fast transients in the power transmission and distribution networks is rather difficult task using present voltage and current transformers. The bandwidth of the existing transducers is too low for this purpose. In this paper, a rather simple inductive sensor is introduced for the purposes of online condition and fault monitoring of power lines. Several design aspects are discussed, including bandwidth and sensitivity of the sensor.

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