What is the abbreviation for magnetic optical current transformer. Frequency response characteristics of oit outputs are obtained. Like the power transformer, the current transformer also contains a primary and a secondary winding. The moctp system is suitable for outdoor application and has a continuous current rating. We consider bulkoptics and allfiber current sensors and voltage sensors that exploit the electrooptic effect in bgo and the piezoelectric effect in quartz. Commonly used in homes with trackmonorail or landscape lighting systems, transformers convert the standard residential electric current 120 volts to a lower voltage 12 volts or 24 volts required by the lamp or lighting system. Octs are based on faraday effect, interferometric principle, bragg grating and micromechanical sensors with optical. 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.
The magneto optical current transducer eliminates many of the drawbacks of the conventional current transformers. Optical technology applicationsbegan in 1986 with combined efforts of tva and abb. Ppt moctmagneto optical current transformer powerpoint presentation free to download id. Magneto optic current transformer technology moct analyzer is that photo detectors can only detect the intensity of light, rather than the orientation of polarizations. Magnetic optical current transformer market analysis and industry forecast from 2019 to 2026. Octs are based on faraday effect, interferometric principle, bragg grating and micromechanical sensors with optical readout. Extensive bandwidth, able to measure both dc and ac current. Note that current i c is in phase with e 1 and that current i m is phaseshifted by 90. Conventional current transformers becomes more and more bulky and costly. 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. 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. This shows that a conductor carrying current has a magnetic. Fiber optic current sensors and optical current transformers. The global optical current transformer market can be segmented on the basis of type, voltage range and application.
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. Nov 15, 2019 the basic principle of the current transformer is the same as that of the power transformer. Linus tech tips is a passionate team of professionally curious experts in consumer technology and video pr. Download the seminar report for magneto optic current transformer. Fiberoptic transducers are ideally adapted to highvoltage environments as they are highly immune to electro magnetic. The basic principle of fiber optic current sensors focs and optical current transformers octs is to measure polarization rotation due to the faraday effect. Michael faraday discovered that the orientation of linearly polarized light was rotated under the influence of the magnetic.
Magneto optic current transformer full seminar report, abstract. Magnetooptical current transformer technology moct seminar. Abb has also developed since 1990s optical current sensors, based on the faraday effect principle, whereby light is used to deduce the precise magnitude of current that is creating the magnetic field. The block responsible for implementing the media access control functions of the ethernet specification. Explore optical technology in current measurement with free download of seminar report and ppt in pdf and doc format. Sep 11, 2016 the iccs consists of an inductive current transformer having a primary winding, a small core and a minimizedloss secondary winding. Optical current transformer market global industry analysis. Scribd is the worlds largest social reading and publishing site. To measure the speed of the motor by using optical photo magnetic proximity sensors apparatus required. Optical current transformers are also known as fibre optic current sensors fcos. Traditional, often line frequency current transformers, hall effect current transformers and switchmode power supply smps current transformers are examined in depth.
A current transformer transforms the current down to a reasonable level and provides an isolation barrier. Conclusion this magneto optical current transducer eliminates many of the drawbacks of the conventional current transformers. Inrush may be high in magnitude, may contain a heavy dc offset with a long time constant, and it may have a unipolar halfwave nature. The response of optical current transformer is the response ability of magnetic field of optical current transformer. Current transformer errors and transformer inrush as. Magneto optic current transducer consist of a sensor head located near the current carrying conductor, an electronic signal processing unit and fiber optical. After all this i had to make sure that core is not saturating i was increasing current until secondary current was not rising proportionally to primary current. If so, share your ppt presentation slides online with. If a magnetic compass is placed near a conductor carrying current wire, the needle is deflected. Then i created another transformer with more turns added turns proportionally to get desired secondary current at 1a on primary. In an conventional current transformers, there is a chance of saturation of magnetic field under high current, complicated insulation and cooling structure, a chance of electro magnetic. Optical technology in current measurement seminar report.
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. Advantages of optical current and voltage sensors and. Nov 17, 20 conclusion this magneto optical current transformer eliminates many of the drawbacks of the conventional current transformers. 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. From transformer theory, we recall that current i c represents power losses in the transformer core, and that current i m represents the current required to produce the magnetic. This shows that a conductor carrying current has a magnetic field around it. Get magneto optical current transformer technology moct seminar report and ppt in pdf and doc. The primary winding can consist merely of the primary current conductor passing once through an aperture in the current transformer. There are four typical types of current transformers. 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. Conventional current transformers use the principle of electro. Ppt on magnetic effect fof electric current authorstream. Mar 17, 2014 a ppt on magneto optic current transducer. The basic principle of the current transformer is the same as that of the power transformer.
Every ethernet frame contains both a source and destination address, both of which are mac. Magnetooptical current transformer technology moct. Osa error characteristic analysis and experimental. 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.
Fiber optics current sensor free standing focsfs is a freestanding 3phase sensor system for 245 kv to 800 kv high voltage substations one system consists in. An optoisolator is an electronic component that transfers electrical signals between two. In an conventional current transformers, there is a chance of saturation of magnetic field under high current, complicated insulation and cooling structure, a chance of electro magnetic interference. Optical measurement of currents in power converters.
Extensive bandwidth, able to measure both dc and ac current up to 100 harmonic and above. Mac address a 6octet number representing the physical address of the nodes on an ethernet network. Jul 03, 2017 magneto optic current transformer technology moct analyzer is that photo detectors can only detect the intensity of light, rather than the orientation of polarizations. The iccs consists of an inductive current transformer having a primary winding, a small core and a minimizedloss secondary winding. They are widely used in substations and power systems. Current transformer errors and transformer inrush as measured. Each type of transformer requires different magnetic characteristics regarding parameters such as permeability. During the forecast period, north america will be closely followed by asia pacific in terms of expected demand. Ppt magnetic hard disk mechanism powerpoint presentation. Ppt on magnetic effect fof electric current authorstream presentation.
Introduction in recent years optical current and voltage. Also explore the seminar topics paper on optical technology in current. Magneto optical current transformer technology by prasanth. Moctmagneto optic current transformer free download as powerpoint presentation. A current transformer operates with a set primary current and will try to output a constant current to the load, independent of the load. Magnetic effect of a current hens christian oersted 17771851 was the first scientist to observe that a compass needle gets deflected when placed near a current carrying a conductor. The faraday effect is the rotation of the polarization state of light.
Also explore the seminar topics paper on magneto optical current transformer. Also get the seminar topic paper on magneto optical current transformer technology moct with. This forum provides unlimited free download of latest seminar reports and ppt on. Current transformer the mostused device for measurements of alternating currents in electrical high and mediumvoltage networks is the ct current transformer. Moct abbreviation stands for magnetic optical current transformer. Then to summarise, the current transformer, ct is a type of instrument transformer used to convert a primary current into a secondary current through a magnetic medium. Ieee trialuse standard for optical ac current and voltage sensing systems no shorttime thermal test is required for optical current transformers unless they use magnetic cores or wire windings. Its secondary winding then provides a much reduced current which can be used for detecting overcurrent, undercurrent, peak current, or average current conditions. A slotted optical switch contains a source of light and a sensor, but its optical. Magnetic hard disk mechanism is the property of its rightful owner. Basis for moctinteraction between the magnetic field of the primary conductor and the optical activity of glass material magneto optical current transformer is an instrument transformer,using.
Conclusion of the applicability of nonoptic magnetic field. Some of the main features of optical current transformer are. The magneto optical current transformer is based on the faradays effect. In a conventional current transformer, there is a chance of saturation of magnetic field under high current, complicated insulation and cooling structure, a chance of. To measure currents power stations and substations conventionally employ inductive type current transformers. Current transformer basics and the current transformer. May 05, 2015 thus, by measuring the rotation of the plane of polarization of light it is possible to measure the magnetic field and consequently the current producing the field. We report on abbs fiberoptic current and voltage transducers and their applications in highvoltage substations. Liu, modeling analysis and experiment study on temperature characteristic of allfiber optical current transformer, proc.
Find materials for this course in the pages linked along the left. With over 30 years experience of the specialty optical fiber industry, fibercore ltd, the world leader in its field, is exclusively dedicated to the design, manufacture and. Download the seminar report for magneto optic current. To measure currents power stations and substations conventionally employ inductive type current transformers with core and windings. Option to save your current transformer design for reference and comparison. Magnetic effects of electric current for 10th class authorstream. The current transformer will operate into either a short circuit or a resistive load until the voltage induced is enough to. The global market is segmented by type, application, and region. Generally, an ebook can be downloaded in five minutes or less. 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. Conclusion this magneto optical current transformer eliminates many of the drawbacks of the conventional current transformers. In a conventional current transformer, there is a chance of saturation of magnetic field under high current. 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.
A comparison of current sense schemes listing advantages and disadvantages of each type. A fiberoptic current sensor focs is a current sensor for measuring direct current. Magneto optic current transformer full seminar reports, pdf seminar abstract, ppt, presentation, project idea, latest technology details, ask latest information. Optical current transformer oct is defined as sensors that directly or indirectly use optical sensing methods to measure electric currents. For high voltage applications, porcelain insulators. Fiberoptic current and voltage sensors for highvoltage. Engineering books pdf, download free books related to engineering and many more. Magnetic optical current transformer market size, industry trends. Transformers are devices used in lighting systems to help reduce or stepdown high voltages to lower voltages. 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. Whenever an alternating current flows through the primary winding, alternating magnetic flux is produced, which then induces alternating current in the.
Force an a current carrying conductor in a magnetic field. Engineering books pdf download free engineering books. Introduction an accurate electric current transducer is a key component of any power system instrumentation. Introduction moctprinciple the magneto optical current transformer is based on the faradays effect.
Magneto optic current transformer technology moct by. Explore magneto optical current transformer technology moct with free download of seminar report and ppt in pdf and doc format. 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. Engineertoengineer note ee269 a technical notes on using analog devices dsps, processors and development tools contact our technical support at processor. To download the current transformer design tool, enter and submit your contact information below. An accurate electric current transducer is a key component of any power system instrumentation. Free seminar reports, ppt presentation topics and abstract. The current transformer function is different than that of a voltage transformer. This section contains lecture notes in both pdf and powerpoint formats. Magnetics current transformer design software assists design engineers in choosing the most appropriate core material and size for a number of current transformer ct topologies.
The moct measures the electric current by means of faraday effect. Fr2656931a1 measuring transformer using optical means. Transformer inrush may be among the worst types of current for a magnetic ct to reproduce, because it has a combination of effects that put ct performance most at risk. Download moct ppt for seminar in electrical engineering. Moct magneto optical current transformer presentation. Bharati vidyapeeths college of engineering presented by shashank singhal 2. A dissertation presented in partial fulfillment of the. In recent years optical current and voltage transducers have reached a high degree of maturity and started to compete with conventional instrument transformers. Whenever an alternating current flows through the primary winding, alternating magnetic flux is produced, which then induces alternating current.
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