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A new coreless non-intrusive current probe is presented in this paper. Most of the existing current sensors require 360° access to the wire, while the proposed probe accurately measures the current even if the access to the wire is limited to a small angle. Another new feature of the probe is that its output is not sensitive to the variation in the gap between the wire and the probe, which is a major...
A new, simple and low cost current measurement system based on the anti-differential arrangement of the Hall-Effect based sensors is presented in this paper. The output of the existing anti-differential Hall-Effect current sensor is highly sensitive to the distance between the conductor and the Hall Effect sensors. This distance is a function of the thickness of the insulation and it vary from wire...
High frequency response of power transformer is used to analyze winding deformation. To model the high frequency behavior of power transformer, a lumped parameter equivalent circuit with multiple sections is widely used. However, the accuracy and complexity of the model depends on the number of sections. In this paper, a comparative study is made between models with different number of sections to...
A multilevel inverter is a power electronic device that is used for high voltage and high power applications and has many advantages like, low switching stress, low total harmonic distortion (THD). Hence, the size and bulkiness of passive filters can be reduced. This paper proposes two new topologies of a 7-level cascaded multilevel inverter with reduced number of switches than that of conventional...
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