Optical measurement of currents in power converters. The magnetooptical current transformer is based on the faradays effect. The device developed is a magnetooptic current transducer moct. To measure currents power stations and substations conventionally employ inductive type current. Magneto optic current transformer market global industry. The sctppt excitation system uses both a generator stator voltage source ppt and a generator stator current source sct as the power source for the main field.
Available from 25 kv to 800 kv for measurement, protection and control. A current measurement technique using the magneto optic or faraday effect, has been developed, tested, and demonstrated. 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 transformer in which ns np is called a step up transformer. 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. 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. Magneto optic current transformer technology moct by.
Ppt moctmagneto optical current transformer powerpoint. With short circuit capabilities of power system getting larger and the voltage level going higher the conventional current transducers becomes more. 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 sct ppt excitation system uses both a generator stator voltage source ppt and a generator stator current source sct as the power source for the main field. Magnetooptical current transformermoct seminar report. Magneto optical current transformer is the property of its rightful owner. The moct measures the electric current by means of faraday effect. Traditional, often line frequency current transformers, hall effect current transformers and switchmode power supply smps current transformers are examined in depth. When the preset trip current is reached or exceeded, light pulses will be emitted. Magnetooptical current transformer technology moct seminar. The seminar topic is based on magneto optical current. Generally, an ebook can be downloaded in five minutes or less.
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. New trends in current and voltage transducers are lowpoweroutput current and voltage transformers recently included in an iec standard and magnetooptic current and voltage transducers moct and movt. Moct magneto optical current transformer powerpoint ppt presentation. Magnetooptical sensors by didosyan and hauser with 33 refs with the faraday and kerr effects and a description of the magnetooptical current transformer. Extensive bandwidth, able to measure both dc and ac current up to 100 harmonic.
The faraday effect is the rotation of the polarization state of light. Current transformer design tool assists design engineers in choosing the most appropriate core material and size for a number of current transformer ct topologies. 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. Magnetooptical current transformer technology moct. Magnetooptical current transformer technology by prasanth. Octs are based on faraday effect, interferometric principle, bragg grating and micromechanical sensors with optical readout. Magnetooptical current transformer technology moct posted by.
The basic principle of fiber optic current sensors focs and optical current transformers octs is to measure polarization rotation due to the faraday effect. It uses the rotation of the plane of polarization by a magnetic field exhibited in certain glasses faraday effect. An accurate electric current transducer is a key component of any power system instrumentation. To measure currents power stations and substations conventionally employ inductive type current transformers. Mar, 2014 download optical current transformer oct ppt for electrical engineering seminar. Download your reports for magneto optic current transformer. Shivankit bansal 1207749 final year electrical deptt. Magneto optic current transformer technology moct attish jain btech, eee, srm university kancheepuram kattankulathur 603203 abstract. Optical current transformeroct is defined as sensors that directly or indirectly use optical sensing methods to measure electric currents.
If you continue browsing the site, you agree to the use of cookies on this website. 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. Current transformer the mostused device for measurements of alternating currents in electrical high and mediumvoltage networks is the ct current transformer. Magneto optic current transformer linkedin slideshare. Inherent temperature compensation of fiberoptic current. Moct magnetooptical current transformer seminar topics. A fibre optic cable is used to transmit light pulses from the ct to the evaluation unit in the housing. Get magneto optical current transformer technology moct seminar report and ppt in pdf and doc. A special spun highly birefringent fiber is designed and achieved for the sensor by. Ppt moctmagneto optical current transformer powerpoint presentation free to download id. Can stack in parallel oil burner utility pole transformer pole pig.
Contents introduction ct purpose and demerits moct principle, design, working. Download the seminar report for magneto optic current transformer. Fiber optic current sensors and optical current transformers. Magnetooptical current transformer powerpoint ppt presentation. Ppt magnetooptical current transformer powerpoint presentation free to download id.
Ppt magneto optical current transformer powerpoint presentation free to download id. It appears that the newly emerged magneto optical current transformer technology provides a solution for many of the above mentioned problems. Current transformer white paper the basics of current transformers ratio the ct ratio is the ratio of primary current input to secondary current output at full load. Optical current transformer oct ppt topics for seminar. The magnetooptic current transformer moct is a passive optical current transducer which uses light to accurately measure current on high voltage systems. Explore magnetooptical current transformer technology moct with free download of seminar report and ppt in pdf and doc format.
Introduction an accurate electric current transducer is a key component of any power system instrumentation. To measure currents power stations and substations conventionally employ inductive type current transformers with core and windings. Current transformers, inductive voltage transformers, capacitive voltage transformers, combined currentvoltage transformers and station service voltage transformers are designed to transform high current and high voltage levels down to low current and low voltage outputs in a known and accurate proportion specified by the. Current transformers, inductive voltage transformers, capacitive voltage transformers, combined current voltage transformers and station service voltage transformers are designed to transform high current and high voltage levels down to low current and low voltage outputs in a known and accurate proportion specified by the. Conventional current transformers becomes more and more bulky and costly. 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.
Global magneto optic current transformer market analysis. Magnetooptical current transformer technology moct page link. Magneto optic current transducermoct ppt published in. 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. If so, share your ppt presentation slides online with. 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. Moct block diagram applications pros and cons conclusion 3. To measure currents, power stations and substations conventionally employ inductive type current transformers. Some of the main features of optical current transformer are. Ppt magneto optical current transformer powerpoint. Fiber optic current sensor based on special spun highly. Magnetooptical current transformer ppt electrical ppt. May 29, 2011 magnetooptical current transformer technology by prasanth sun may 29, 2011 5. Oct 07, 2019 magneto optic current transducermoct ppt.
Explore magneto optical current transformer technology moct with free download of seminar report and ppt in pdf and doc format. A current measurement technique using the magnetooptic or faraday effect, has been developed, tested, and demonstrated. Conclusion this magneto optical current transducer eliminates many of the drawbacks of the conventional current transformers. The magneto optic current transformer moct is a passive optical current transducer which uses light to accurately measure current on high voltage systems. The basics of current transformers nk technologies. We investigate the various contributions to the temperature dependence of an interferometric fiberoptic current sensor employing spun highlybirefringent sensing fiber, in particular, the contributions from the fiber retarder at the fiber coil entrance, the spun fibers birefringence, and the faraday effect. The device developed is a magneto optic current transducer moct. An accurate current transducer is a key component of any power system instrumentation. A current transformer transforms the current down to a reasonable level and provides an isolation barrier between the primary winding and the secondary winding at ground potential. Moct technology provides solution to many of the problems of conventional current. 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. Collection of seminar topics for electronics and communication engineering with ppt. Chart and diagram slides for powerpoint beautifully designed chart and diagram s for powerpoint with visually stunning graphics and animation effects.
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. The main challenge with conventional current transformers in high voltage. Magneto optic current free download as powerpoint presentation. Optical character recognition ocr is the technology used to distinguish printed or handwritten text characters within digital images of physical documents like scanned. Generally, this phenomenon can be described as follows. Get magnetooptical current transformer technology moct seminar report and ppt in pdf and doc. To measure currents, power stations and substations conventionally employ inductive type current transfo. Liu, modeling analysis and experiment study on temperature characteristic of allfiber optical current transformer, proc. The magneto optic current transformer is used in order to assist the smooth flow of the current with a high voltage. The insulation structure has to be designed carefully to avoid breakdown. Current transformer with integrated trip threshold detection capability. Contents introduction ct purpose and demerits moct principle. 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. A transformer in which np ns is called a step down transformer.
Our new crystalgraphics chart and diagram slides for powerpoint is a collection of over impressively designed datadriven chart and editable diagram s guaranteed to impress any audience. Moct technology provides solution to many of the problems of conventional current transformer. 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. 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. To measure currents, power stations and substations conventionally employ inductive. A step up transformer is a transformer which converts low alternate voltage to high alternate voltage.
The seminar topic is based on magneto optical current transformer presented byaishwarya verma0902011 2. Magneto optic current transformer seminar report pdf. Download optical current transformer oct ppt for electrical engineering seminar. Magneto optic current transformer full seminar report, abstract.
Contents current transformer moct principle,working,design moct. Mar 17, 2014 magnetooptic current transducer moct ppt. Download the seminar report for magneto optic current. We theoretically and experimentally demonstrate that an appropriately designed. Download full latest seminar topics for ece 2020 in doc, pdf or ppt format. 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. A fiberoptic current sensor focs is a current sensor for measuring direct current. It appears that the newly emerged magnetooptical current transformer technology provides a solution for many of the above mentioned problems. Ppt moct magneto optical current transformer powerpoint presentation free to download id. 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. Conclusion this magnetooptical current transducer eliminates many of the drawbacks of the conventional current transformers. Moct optical current transformer system for metering 72.