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Michael faraday discovered that the orientation of linearly polarized light was rotated under the influence of the magnetic field when the light propagated in a piece of glass, and the rotation angle was proportional to the intensity of the magnetic field. The device developed is a magneto optic current transducer moct. Free download of full electrial seminar reports along with reference details and presentation files. May 29, 2011 magnetooptical current transformer technology by prasanth sun may 29, 2011 5. One of these devices is optical current transformer oct.
Magnetooptical current transformer of high bandwidth and. In contrast, the principle of operation of the new sensor is based on the direct registration of the domain wall dw positions in an orthoferrite plate. Introduction moctprinciple the magneto optical current transformer is based on the faradays effect. Optical current transformer is an alternative to the existing conventional current transformers. Optical current transformers are suitable for power system protection and can replace the magnetic current. The dramatic expansions of the manufacturing capabilities and rising consumer consumptions in.
Michael faraday discovered that the orientation of linearly polarized light was rotated under the influence of the magnetic field. Optical current transformeroct is defined as sensors that directly or indirectly use optical sensing methods to measure electric currents. Development of models for optical instrument transformers by. February 7th, 2017 by afsal meerankutty 1 comment an accurate current transducer is a key component of any power system instrumentation. Image inpainting electronics btech project abstract inpainting is the art of restoring lostselected parts of an image based on the background information in a visually plausible way. The use of the magneto optic current transformers are widening in the instrumentation and power station industry due to its features such as resistance to the high voltage and nonexistence of the saturation effects.
In this paper design and test of a lab sample of a current transformer using magnetooptic effect is discussed. To measure currents, power stations and substations conventionally employ inductive type current transformers. Optical current transformer oct ppt topics for seminar. Magneto optical current transformer technology moct seminar report, ppt, pdf for ece students. Tecgnology a new trend is being introduced, which known as ocp based on adaptive theory, which make use of accuracy in the steady state of the conventional current transformer and the.
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Optical measurement of currents in power converters. A current transformer using magnetooptic sensor abstract. Magneto optic current transducer consist of a sensor head located near the current carrying conductor, an electronic signal processing unit and fiber optical cables linking to these two parts. The moct measures the electric current by means of faraday effect, which was first observed by michael faraday 150 years ago. Mar 14, 2014 optical current transformer is an alternative to the existing conventional current transformers, providing an advanced measurement solution for both metering and protection applications, based on a cuttingedge patented optical sensing technology. In this paper, we described a comparison between optical current transformers and conventional current transformers. Upon detonation, the explosion flares out the cylinder, shortcircuiting the coil and progressively reducing the number of turns in the coil, thus compressing the magnetic flux. Download optical current transformer oct ppt for electrical engineering seminar. Download complete seminar in word, pdf and ppt format.
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Advantages of optical current and voltage sensors and. Current transformer power system analysis free lecture pdf download resistance and leakage reactance of transformer or impedance of transformer power system analysis free lecture. Optical current transformer is an alternative to the existing conventional current transformers, providing an advanced measurement solution for both metering and protection. Octs are based on faraday effect, interferometric principle, bragg grating and micromechanical sensors with optical readout. Michael faraday discovered that the orientation of. If a current flows in a conductor or semiconductor and there is a magnetic field present which is perpendicular to the current flow, then the combination of current and magnetic field will generate a. Download moct seminar report and ppt to learn more. Magneto optic current transformer seminar report pdf. The magnetooptical current transformer is based on the. Moct measures the rotation angle of the plane polarized lights caused by the magnetic field and convert it into a signal of few volts proportional to the magnetic field.
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