The source of this optical anisotropy is the magnetisation m within surface domains which can be influenced by external forces such as magnetic fields. Based on the faraday effect, magnetooptical current transformers mocts provide numerous advantages as compared with conventional measuring transformers. Magneto optical disks are seldom manufactured and used due to the advent of flash drives and dvdcd drives, which are less expensive and have better. The moct system is suitable for outdoor application and has an accurate metering current range from less than 5 a to 3150 a using the same sensor. 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. Optical current transformer is an alternative to the existing conventional current transformers, providing an advanced measurement solution for both metering and protection. The magneto optical current transducer eliminates many of the drawbacks of the. Also explore the seminar topics paper on optical technology in current. The measurements are contactless and the measured signal is transmitted by a light beam propagating in air or in optical fibers. The drive laser heats the magnetic surface to a high enough temperature to allow the polarization of the disk to be modified with a magnet for more precisely written data. This eliminates costly problems of potential separation. The moct measures the electric current by means of faraday effect, which was first observed by michael faraday 150 years ago. Optical measurement of currents in power converters.
Optical measurement has been demonstrated on a laboratory scale. 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. Optical current transformer oct linkedin slideshare. Generally, an ebook can be downloaded in five minutes or less. Download the seminar report for magneto optic current transformer. Monolithic magnetooptical oxide thin films for onchip optical isolation. Mo or magneto optical recording is a method of storing and retrieving data using a laser and a magnet. 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. Contents introduction ct purpose and demerits moct principle, design, working.
Based on the faraday effect, magneto optical current transformers mocts provide numerous advantages as compared with conventional measuring transformers. Download optical current transformer oct ppt for electrical engineering seminar. Magnetooptical current transformer technology moct seminar. An accurate electric current transducer is a key component of any power system instrumentation. During the forecast period, north america will be closely followed by asia pacific in terms of expected demand. In 1983, just a year after the introduction of the compact disc, kees schouhamer immink and joseph braat presented the first experiments with erasable magneto. Magnetooptical devices for optical integrated circuits. A magneto optical drive is a kind of optical disc drive capable of writing and rewriting data upon a magneto optical disc. Magnetooptical current transformer ppt electrical ppt. Optical current transformers are suitable for power system protection and can replace the magnetic current. The moctp system is suitable for outdoor application and has a continuous current rating. Also explore the seminar topics paper on magnetooptical current. Also get the seminar topic paper on magnetooptical current transformer technology moct with.
Also get the seminar topic paper on magneto optical current transformer technology moct with abstract or synopsis, documentation on advantages and disadvantages, presentation slides for ieee final year electronics and telecommunication engineering or ece students for the year 2016 2017. Also explore the seminar topics paper on magnetooptical current transformer technology moct with abstract or synopsis, documentation on advantages and disadvantages, base paper presentation slides for ieee final year electronics and telecommunication engineering or. Explore optical technology in current measurement with free download of seminar report and ppt in pdf and doc format. Advantages of optical current and voltage sensors and. Explore magneto optical current transformer technology moct with free download of seminar report and ppt in pdf and doc format. Because temperature dependence of paramagnetic rare earthdoped re glass is the main factor hindering its application in oct, this study will. Conventional current transformers becomes more and more bulky and costly.
The magneto optical current transformer is based on the faradays effect. Moctmagneto optic current transformer free download as powerpoint presentation. Global magneto optic current transformer market analysis. Optical technology in current measurement seminar report. Mo or magnetooptical recording is a method of storing and retrieving data using a laser and a magnet. Optical current transformers are suitable for power system protection and can replace the magnetic current transformers. Magnetic structure and ferroelectric polarization of the multiferroic langasite. The seminar topic is based on magneto optical current transformer presented byaishwarya verma0902011 2. A magnetooptical drive is a kind of optical disc drive capable of writing and rewriting data upon a magnetooptical disc. The magneto optic current transformer is used in order to assist the smooth flow of the current with a high voltage. Dvd digital versatile disk and mo magneto optical disk. These measurements form an essential part of operations and protection functions in the substation, and thus reliability and accuracy of voltage and current transformers vcts is important. A magneto optical disk is a rewritable disk that makes use of both magnetic disk and optical technologies. Get magnetooptical current transformer technology moct seminar report and ppt in pdf and doc.
Magneto optic current transformer linkedin slideshare. How to replace a squid capsule and feedback transformer. Ppt moctmagneto optical current transformer powerpoint presentation free to download id. With increasing drawbacks of conventional current transformers such as saturation of magnetic field under high current, electromagnetic interference and complicated insulation and cooling structures are driving the demand for advanced electrical equipment, for instance, magneto optic current transformer market over the forecast. Magneto optic current transformer, ask latest information, magneto optic current transformer abstract,magneto optic current transformer report,magneto optic current transformer presentation. In this paper, we described a comparison between optical current transformers and conventional current transformers. An accelerometer is a tool that measures proper acceleration. Optical current transformer market global industry.
Magneto optic current transformer, ask latest information, magneto optic current transformer abstract, magneto optic current transformer report, magneto optic current transformer presentation pdf,doc, ppt, magneto optic current transformer technology discussion, magneto optic current transformer paper presentation details, magneto optic current transformer, ppt, pdf, report, presentation, source. The research activities on the phenomenon of magnetooptic effects has recently promulgated due to its versatile use in magnetooptic recordings for high density magnetic data storage, magnetic field. The global optical current transformer market can be segmented on the basis of type, voltage range and application. When data needs to be read from the disk a laser of less intensity is used. Pdf magnetooptical fiber sensor based on magnetic fluid. Magneto optic current transformer full seminar reports, pdf seminar abstract, ppt, presentation, project idea, latest technology details, ask latest information. Magnetooptical current transformer technology moct. The magnetooptical current transformer is based on the faradays effect generally, this phenomenon can be described as follows. Magneto optic current transformer technology moct by. Magnetooptical current transformermoct seminar report.
Michael faraday discovered that the orientation of linearly polarized light was rotated under the influence of the magnetic field. Current transformer the mostused device for measurements of alternating currents in electrical high and mediumvoltage networks is the ct. Magneto optic current transformer market global industry. Generally, this phenomenon can be described as follows. Moct block diagram applications pros and cons conclusion 3. Electric current path of primary bus has to be designed properly to minimize the mechanical forces. Optical current sensors ocss show several important features when compared with conventional current transformers cts, such as their having highly effective isolation from high line potentials offered by the dielectric nature of the optical fibers, freedom from the saturation effect which may be observed in conventional transformers, the. A free powerpoint ppt presentation displayed as a flash slide show on id. Magneto optic current transformer market key players, size, share. Magnetooptical current transformer of high bandwidth and. Arteche optical current transformer is presented as an alternative to current conventional current transformers, offering an advanced solution for both measuring and. Magneto optic current transformer seminar report pdf. Therefore, properties of magnetooptical materials are different for two opposite directions of light propagation and optical nonreciprocal devices like the optical isolator and the optical circulator can. Get magneto optical current transformer technology moct seminar report and ppt in pdf and doc.
Octs are based on faraday effect, interferometric principle, bragg grating and micromechanical sensors with optical readout. Monolithic magnetooptical oxide thin films for onchip. The basic principles of magneto optic effects, as well as the functions of various magneto optic devices based on these effects, are considered in this chapter. Mar 17, 2014 a ppt on magneto optic current transducer. Dvd digital versatile disk and mo magnetooptical disk.
Current measurement with optical current transformer. Michael faraday discovered that the orientation of linearly polarized light was rotated under the influence of the magnetic field when the. The magnetooptic current transformer moct is a passive optical current transducer which uses light to accurately measure current on high voltage systems. Global industry analysis, size, share, growth, trends, and forecast, 2019 2027. One of these devices is optical current transformer oct. Current transformer the mostused device for measurements of alternating currents in electrical high and mediumvoltage networks is the ct current transformer. Optical current sensors ocss show several important features when compared with conventional current transformers cts, such as their having highly effective isolation from high line potentials. A current transformer transforms the current down to a reasonable level and provides an isolation barrier. Current transformers cts and voltage transformers vts are used extensively in substations for measuring and monitoring voltage and current. Magneto optical fiber sensor based on magnetic fluid peng zu, 1 chi chiu chan, 1, wen siang lew, 2 yongxing jin, 3 yifan zhang, 1 hwi fen liew, 2 li han chen, 1 wei chang wong, 1 and xinyong dong 3. Download moct ppt for seminar in electrical engineering. The transformer has a range of output voltage taps which can be used to set the start voltage, and the start time is controlled by a timer.
The moct measures the electric current by means of faraday effect. Performance of magnetooptical glass in optical current. This magneto optical current transducer eliminates many of the drawbacks of the conventional current transformers. Optical current transformeroct is defined as sensors that directly or indirectly use optical sensing methods to measure electric currents. 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. Download the seminar report for magneto optic current. February 7th, 2017 by afsal meerankutty 1 comment an accurate current transducer is a key component of any power system instrumentation. Optical recording media are usually disk shaped with a hole for the spindle at the. Arteche optical current transformer is presented as an alternative to current conventional current transformers, offering an advanced solution for both measuring and protection applications based on optical technology. A magnetooptical disk is a rewritable disk that makes use of both magnetic disk and optical technologies. To measure currents power stations and substations conventionally employ inductive type current. The magneto optical current transducer eliminates many of the drawbacks of the conventional current transformers. Magneto optical effects in magnetic materials arise due to the optical anisotropy of the materials. It is similar to a magnetic diskette except for its larger size.
Also explore the seminar topics paper on magneto optical current transformer technology moct with abstract or synopsis, documentation on advantages and disadvantages, base paper presentation slides for ieee final year electronics and telecommunication engineering or. This separates the faraday magneto optical effect from natural optical activity in chiral media, that is, an optical rotation produced without an external magnetic field applied, which arises from the low symmetry of individual molecules or from the symmetry of the unit cell in a crystal, 14. Mar 14, 2014 optical current transformer is an alternative to the existing conventional current transformers, providing an advanced measurement solution for both metering a slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. The basic principles of magnetooptic effects, as well as the functions of various magnetooptic devices based on these effects, are considered in this chapter. Magneto optic current transformer full seminar report, abstract. The drive laser heats the magnetic surface to a high enough temperature to allow the. The magnetooptical current transformer is based on the faradays effect. Ppt magneto optical current transformer powerpoint.
By using a singleended optical fiber around the current conductor that utilizes the magnetooptic effect faraday effect, focs measures uni or bidirectional dc currents of up to 600 ka within 0. The use of the magneto optic current transformers are widening in the instrumentation. The magneto optic current transformer moct is a passive optical current transducer which uses light to accurately measure current on high voltage systems. Moct magnetooptical current transformer seminar topics. Download moct seminar report and ppt to learn more. Moct magneto optical current transformer powerpoint ppt presentation. A fiberoptic current sensor focs is a current sensor for measuring direct current. These optical recording techniques have many advantages. Optical current transformer oct ppt topics for seminar. Moct optical current transformer system for metering 72. It appears that the newly emerged magneto optical current transformer technology provides a solution for many of the above mentioned problems. Optical current transformer market global industry analysis.
By using a singleended optical fiber around the current conductor that utilizes the magnetooptic effect faraday. In an conventional current transformers, there is a chance of. Conclusion of the applicability of nonoptic magnetic field. With increasing drawbacks of conventional current transformers such as saturation of magnetic field under high current. Magnetooptical fiber sensor based on magnetic fluid peng zu, 1 chi chiu chan, 1, wen siang lew, 2 yongxing jin, 3 yifan zhang, 1 hwi fen liew, 2 li han chen, 1 wei chang wong, 1 and xinyong dong 3. Explore magnetooptical current transformer technology moct with free download of seminar report and ppt in pdf and doc format. Introduction moctprinciple the magneto optical current transformer is based on the faradays effect.
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