Optical technology in current measurement seminar report. 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. Also explore the seminar topics paper on magnetooptical current. The drive laser heats the magnetic surface to a high enough temperature to allow the. 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. Magneto optic current transformer market global industry. Optical current transformer is an alternative to the existing conventional current transformers, providing an advanced measurement solution for both metering and protection. The moct measures the electric current by means of faraday effect, which was first observed by michael faraday 150 years ago. It is similar to a magnetic diskette except for its larger size. The magneto optic current transformer is used in order to assist the smooth flow of the current with a high voltage. Michael faraday discovered that the orientation of linearly polarized light was rotated under the influence of the magnetic field. To measure currents power stations and substations conventionally employ inductive type current. The magnetooptical current transformer is based on the faradays effect. Download the seminar report for magneto optic current transformer.
Monolithic magnetooptical oxide thin films for onchip optical isolation. Optical recording media are usually disk shaped with a hole for the spindle at the. Explore magneto optical current transformer technology moct with free download of seminar report and ppt in pdf and doc format. The magneto optic current transformer moct is a passive optical current transducer which uses light to accurately measure current on high voltage systems. Magneto optic current transformer, ask latest information, magneto optic current transformer abstract,magneto optic current transformer report,magneto optic current transformer presentation. Global industry analysis, size, share, growth, trends, and forecast, 2019 2027. 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. Download the seminar report for magneto optic current.
Advantages of optical current and voltage sensors and. 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. During the forecast period, north america will be closely followed by asia pacific in terms of expected demand. 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. 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 transformer oct linkedin slideshare.
Generally, this phenomenon can be described as follows. Magnetooptical current transformer technology moct. One of these devices is optical current transformer oct. The seminar topic is based on magneto optical current transformer presented byaishwarya verma0902011 2. Magneto optic current transformer seminar report pdf. 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. 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. The basic principles of magnetooptic effects, as well as the functions of various magnetooptic devices based on these effects, are considered in this chapter. 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.
An accurate electric current transducer is a key component of any power system instrumentation. Ppt magneto optical current transformer powerpoint. Pdf magnetooptical fiber sensor based on magnetic fluid. 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. Mo or magnetooptical recording is a method of storing and retrieving data using a laser and a magnet. Get magneto optical current transformer technology moct seminar report and ppt in pdf and doc.
Generally, an ebook can be downloaded in five minutes or less. With increasing drawbacks of conventional current transformers such as saturation of magnetic field under high current. Download moct seminar report and ppt to learn more. How to replace a squid capsule and feedback transformer. Dvd digital versatile disk and mo magnetooptical disk. Mar 17, 2014 a ppt on magneto optic current transducer. Magnetooptical current transformer technology moct seminar. Also explore the seminar topics paper on optical technology in current. 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. Magnetooptical current transformer of high bandwidth and. 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 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. 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. Moct optical current transformer system for metering 72. Current transformer the mostused device for measurements of alternating currents in electrical high and mediumvoltage networks is the ct. 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. The global optical current transformer market can be segmented on the basis of type, voltage range and application. Because temperature dependence of paramagnetic rare earthdoped re glass is the main factor hindering its application in oct, this study will. Optical measurement of currents in power converters. Download optical current transformer oct ppt for electrical engineering seminar. Optical current transformers are suitable for power system protection and can replace the magnetic current. The magneto optical current transformer is based on the faradays effect. Magneto optic current transformer linkedin slideshare. Based on the faraday effect, magnetooptical current transformers mocts provide numerous advantages as compared with conventional measuring transformers.
When data needs to be read from the disk a laser of less intensity is used. Conclusion of the applicability of nonoptic magnetic field. 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. The magnetooptical current transformer is based on the faradays effect generally, this phenomenon can be described as follows. 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 magnetooptic current transformer moct is a passive optical current transducer which uses light to accurately measure current on high voltage systems. Explore optical technology in current measurement with free download of seminar report and ppt in pdf and doc format. Also get the seminar topic paper on magnetooptical current transformer technology moct with. 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. 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. Optical measurement has been demonstrated on a laboratory scale.
The moct measures the electric current by means of faraday effect. February 7th, 2017 by afsal meerankutty 1 comment an accurate current transducer is a key component of any power system instrumentation. Magneto optic current transformer market key players, size, share. A free powerpoint ppt presentation displayed as a flash slide show on id. Magneto optic current transformer full seminar report, abstract. Optical current transformeroct is defined as sensors that directly or indirectly use optical sensing methods to measure electric currents. Optical current transformers are suitable for power system protection and can replace the magnetic current transformers. A magneto optical disk is a rewritable disk that makes use of both magnetic disk and optical technologies. Moctmagneto optic current transformer free download as powerpoint presentation. Magnetooptical current transformermoct seminar report. Based on the faraday effect, magneto optical current transformers mocts provide numerous advantages as compared with conventional measuring transformers.
Current measurement with optical current transformer. The source of this optical anisotropy is the magnetisation m within surface domains which can be influenced by external forces such as magnetic fields. Magnetooptical current transformer ppt electrical ppt. Mo or magneto optical recording is a method of storing and retrieving data using a laser and a magnet. The magneto optical current transducer eliminates many of the drawbacks of the conventional current transformers. Current transformer the mostused device for measurements of alternating currents in electrical high and mediumvoltage networks is the ct current transformer. Global magneto optic current transformer market analysis. 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. Optical current transformer market global industry. 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. Dvd digital versatile disk and mo magneto optical disk. 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. In an conventional current transformers, there is a chance of. Contents introduction ct purpose and demerits moct principle, design, working.
In this paper, we described a comparison between optical current transformers and conventional current transformers. An accelerometer is a tool that measures proper acceleration. 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. Magnetooptical devices for optical integrated circuits. Optical current transformer market global industry analysis.
Octs are based on faraday effect, interferometric principle, bragg grating and micromechanical sensors with optical readout. A current transformer transforms the current down to a reasonable level and provides an isolation barrier. A magnetooptical drive is a kind of optical disc drive capable of writing and rewriting data upon a magnetooptical disc. Moct magneto optical current transformer powerpoint ppt presentation. Introduction moctprinciple the magneto optical current transformer is based on the faradays effect. Get magnetooptical current transformer technology moct seminar report and ppt in pdf and doc. This eliminates costly problems of potential separation. The magneto optical current transducer eliminates many of the drawbacks of the. Moct magnetooptical current transformer seminar topics. A magnetooptical disk is a rewritable disk that makes use of both magnetic disk and optical technologies. Arteche optical current transformer is presented as an alternative to current conventional current transformers, offering an advanced solution for both measuring and. 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.
It appears that the newly emerged magneto optical current transformer technology provides a solution for many of the above mentioned problems. The use of the magneto optic current transformers are widening in the instrumentation. The measurements are contactless and the measured signal is transmitted by a light beam propagating in air or in optical fibers. Conventional current transformers becomes more and more bulky and costly. A fiberoptic current sensor focs is a current sensor for measuring direct current.
Ppt moctmagneto optical current transformer powerpoint presentation free to download id. 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. Magneto optic current transformer technology moct by. Monolithic magnetooptical oxide thin films for onchip. Explore magnetooptical current transformer technology moct with free download of seminar report and ppt in pdf and doc format.
The moctp system is suitable for outdoor application and has a continuous current rating. Performance of magnetooptical glass in optical current. 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. A magneto optical drive is a kind of optical disc drive capable of writing and rewriting data upon a magneto optical disc. Current transformers cts and voltage transformers vts are used extensively in substations for measuring and monitoring voltage and current. By using a singleended optical fiber around the current conductor that utilizes the magnetooptic effect faraday. Download moct ppt for seminar in electrical engineering. This 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. Optical current transformer oct ppt topics for seminar. 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. Magneto optic current transformer full seminar reports, pdf seminar abstract, ppt, presentation, project idea, latest technology details, ask latest information. These optical recording techniques have many advantages.
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