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What is an optical sensor?



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A optical current sensor is used to measure current, In CT there is a use of iron core but as the rating of current to be measured increseS the CT saturation occurs this will leads to inaccurate representation of The current, but this does not ocur in OCS ,It uses light to measure the current,Current flowing in a conductor induces a magnetic field, which, through the Faraday effect, rotates the plane of polarization of thelight traveling in a sensing path encircling the conductor.thus by measurin this rotation the current is measured.(by GAURAV GAUR LNT, INDIA)