Optical current transformers are suitable for power system protection and can replace the magnetic current transformers. 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. These optical recording techniques have many advantages. February 7th, 2017 by afsal meerankutty 1 comment an accurate current transducer is a key component of any power system instrumentation. Introduction moctprinciple the magneto optical current transformer is based on the faradays effect. Optical current transformers are current sensors which work on the magnetooptic effect.
Both these market are expected to witness rich growth in the optical current transformer market, owing to the increasing demand of optical current transformer in these regions. Magnetooptical current transformer technology by prasanth. The demand for the advanced electrical equipment such as magneto optic current transformer will increase in the coming years, owing to the limitations of the conventional current transformers. May 29, 2011 magnetooptical current transformer technology by prasanth sun may 29, 2011 5. Optical current transformeroct is defined as sensors that directly or indirectly use optical sensing methods to measure electric currents. Particular attention is payed to using an optical fiber both as a transmission line and a measuring sensor. What is hall effect and how hall effect sensors work youtube. The magnetooptical current transformer is based on the faradays effect generally, this phenomenon can be described as follows. An accurate electric current transducer is a key component of any power system instrumentation. Magnetic optical current transformer market analysis and industry forecast from 2019. In this paper, we described a comparison between optical current transformers and conventional current transformers. The magnetooptical current transformer is based on the faradays effect.
Integrating the optical current transducer with breakerais air insulated switchgear has. 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. A dissertation presented in partial fulfillment of the. 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. 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 moct ppt for seminar in electrical engineering. Current transformer power system analysis free lecture pdf download resistance and leakage reactance of transformer or impedance of transformer power system analysis free lecture notes download theory of transformer on load, with resistance and leakage reactance in transformer power system analysis free pdf download. Dielectric tensor for magnetooptic nimnsb xiang gao and john a. A fiberoptic current sensor focs is a current sensor for measuring direct current. Magnetooptical current transformer technology moct seminar. The faraday effect states that the rotation of the plane of polarization of a beam of light which passes read more optical current transformers. Octs are based on faraday effect, interferometric principle, bragg grating and micromechanical sensors with optical readout. Download the seminar report for magneto optic current transformer are you interested in any one of the topics.
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 hall effect is the most common method of measuring magnetic field and the hall effect sensors are very popular and have many. During the forecast period, north america will be closely followed by asia pacific in terms of expected demand. Moctmagneto optic current transformer free download as powerpoint presentation. Some of the main features of optical current transformer are. When data needs to be read from the disk a laser of less intensity is used. Seminar report magneto optical current transformer abstract an accurate current transducer is a key component of any power system instrumentation. To measure currents power stations and substations. Mar, 2014 download optical current transformer oct ppt for electrical engineering seminar. Current transformers cts and voltage transformers vts are used extensively in substations for measuring and monitoring voltage and current. Performance of magnetooptical glass in optical current. The moct measures the electric current by means of faraday effect.
Worlds biggest electrical transformer with voltage upto 1100kv. 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. It appears that the newly emerged magneto optical current transformer technology provides a solution for many of the above mentioned problems. These sensors typically require fiber optic converters to protect from hazards to personnel and instrumentation inside the aircraft. To measure currents, power stations and substations conventionally employ inductive type current transformers. 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. Download the seminar report for magneto optic current transformer. Woollam center for microelectronic and optical materials research, and department of electrical engineering, university of nebraska. Magnetooptical thin films for onchip monolithic integration. Magneto optic current transformer technology moct by.
The magneto optical current transducer eliminates many of the drawbacks of the conventional current transformers. Get magnetooptical current transformer technology moct seminar report and ppt in pdf and doc. Magneto optic current transducer moct ppt topics for seminar. Download the seminar report for magneto optic current. We report on abbs fiberoptic current and voltage transducers and their applications in highvoltage substations. Magnetooptical current transformermoct seminar report. The seminar topic is based on magneto optical current.
It is clear that each traditional sensor can satisfy only a few of the desirables previously listed. We consider bulkoptics and allfiber current sensors and voltage sensors that exploit the electrooptic effect in bgo and the piezoelectric effect in quartz. Engineering seminar presentation that will blow your mind telecom cloud by syed omais shameem duration. Special implementation of cover allows to apply very quickly and easily the cover on the core. Moct block diagram applications pros and cons conclusion 3. Fiber optic current sensors for high voltage applications duration. 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. Introduction in recent years optical current and voltage. In the majority of magneto optical current transformers developed to date, the main parameter is the angle of light polarization faraday rotation. A magnetooptical drive is a kind of optical disc drive capable of writing and rewriting data upon a magnetooptical disc. Optical current transformer oct linkedin slideshare. Magnetic optical current transformer market size, industry trends.
Download optical current transformer oct ppt for electrical engineering seminar. A current model is the t79100 drive, which has a maximum capacity of 9. Optical measurement of currents in power converters. A current transformer transforms the current down to a reasonable level and provides an isolation barrier. Download moct seminar report and ppt to learn more. Optical current transformer market global industry analysis.
The report presents information regarding the key drivers, restraints, and. Current measurement with optical current transformer. Magnetooptical current transformer technology moct. 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 sensors and its applications in magnetoelectronics. 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. Fiberoptic current and voltage sensors for highvoltage. Magneto optic current transformer full seminar report, abstract.
Optical technology in current measurement seminar report. Extensive bandwidth, able to measure both dc and ac current up to 100 harmonic. The moct measures the electric current by means of faraday effect, which was first observed by michael faraday 150 years ago. The faraday effect states that the rotation of the plane of polarization of a beam of light which passes read more. Magneto dilatation layer for toroidal cores for current. Global magneto optic current transformer market analysis. Magneto optic current transformer full seminar reports, pdf seminar abstract, ppt, presentation, project idea, latest technology details, ask latest information. Also get the seminar topic paper on magnetooptical 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. 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.
Optical recording media are usually disk shaped with a hole for the spindle at the. Moct magnetooptical current transformer seminar topics. Conventional current transformers becomes more and more bulky and costly. Introduction an accurate electric current transformer is a key component of any power. Magneto optic current transformer seminar report pdf. The magneto optic current transformer moct is a passive optical current transducer which uses light to accurately measure current on high voltage systems. 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. Contents introduction ct purpose and demerits moct principle, design, working. 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. Mo or magneto optical recording is a method of storing and retrieving data using a laser and a magnet. 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. Get optical technology in current measurement seminar report and ppt in pdf and doc. 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. Pdf magnetooptical fiber sensor based on magnetic fluid.
Mar 17, 2014 a ppt on magneto optic current transducer. 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 magneto optical current transformer is based on the faradays effect. Magneto optic current transformer market global industry. The principles of measuring currents in highvoltage lines by magnetooptical means are described. Conclusion of the applicability of nonoptic magnetic field. Optical current transformer market global industry.
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. The moctp system is suitable for outdoor application and has a continuous current rating. Explore magnetooptical current transformer technology moct with free download of seminar report and ppt in pdf and doc format. Optical current transformer oct ppt topics for seminar. 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 development owes much to the discovery of amorphous rare earthtransition metal retm. This eliminates costly problems of potential separation. The influence of birefringence on the measuring signal is discussed. This is quit new method protection of toroidal cores used in medium voltage current transformers. To measure currents power stations and substations conventionally employ inductive type current. Dvd digital versatile disk and mo magneto optical disk. The seminar topic is based on magneto optical current transformer presented byaishwarya verma0902011 2. May 05, 2015 optical current transformers are current sensors which work on the magnetooptic effect. A current transformer transforms the current down to a.
One of these devices is optical current transformer oct. Michael faraday discovered that the orientation of linearly polarized light was rotated under the influence of the magnetic field when the. These sensors work by measuring the angle of rotation of a polarized beam of light. Conventional current measurement in highvoltage and highemi electromagnetic. Because temperature dependence of paramagnetic rare earthdoped re glass is the main factor hindering its application in oct, this study will. 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. Moct optical current transformer system for metering 72. Magnetooptical current transformer of high bandwidth and. The measurements are contactless and the measured signal is transmitted by a light beam propagating in air or in optical fibers.
Mo or magnetooptical recording is a method of storing and retrieving data using a laser and a magnet. The magneto optic current transformer is used in order to assist the smooth flow of the current with a high voltage. Download your presentation papers from the following links. Magneto optic current transformer linkedin slideshare. Seminar report magneto optical current transformer. The magnetooptic effect was discovered by sir michael faraday. The discovery of magnetooptical effects evoked a new thought that the nature of light was an electromagnetic entity, and played a central role.
Optical current sensors have been under development for decades. The global optical current transformer market can be segmented on the basis of type, voltage range and application. Advantages of optical current and voltage sensors and. In 1983, just a year after the introduction of the compact disc, kees schouhamer immink and joseph braat presented the first experiments with erasable magnetooptical compact discs during the 73rd aes convention.
Based on the faraday effect, magnetooptical current transformers mocts provide numerous advantages as compared with conventional measuring transformers. 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. Frequency response characteristics of oit outputs are obtained. Current transformer the mostused device for measurements of alternating currents in electrical high and mediumvoltage networks is the ct current transformer.
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