Ppt magneto optical current transformer powerpoint. It works when a light source splits into two 90degree outofphase beams that pass through transparent, evenly spaced windows in a rotating optical disk. Michael faraday discovered that the orientation of linearly polarized light was rotated under the influence of the magnetic field. Optical current transformer market global industry analysis. The magneto optic effect was discovered by sir michael faraday. 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.
Contents introduction ct purpose and demerits moct principle, design, working. Magnetooptical current transformer technology moct. 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. Department of optoelectronics, silesian university of technology, 2 krzywoustego st. Current transformer the mostused device for measurements of alternating currents in electrical high and mediumvoltage networks is the ct current transformer. 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. Humanrobot interaction seminar report, ppt for ece. An accurate electric current transducer is a key component of any power system instrumentation. This magneto optical current transducer eliminates many of the drawbacks of. Current transformer the mostused device for measurements of alternating currents in electrical high and mediumvoltage networks is the ct. The global optical current transformer market can be segmented on the basis of type, voltage range and application.
Particular attention is payed to using an optical fiber both as a transmission line and a measuring. 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. 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. Magnetooptical current transformermoct seminar report. The same aluminum casting design covers all voltage ratings and all currents ratings. The design allows the installation of a second optical sensor head, in. Magneto optic current transformer technology moct by. Arteche optical current transformer is presented as an alternative to current conventional current transformers, offering an advanced solution for both measuring and. Ppt magnetooptical current transformer powerpoint presentation free to download id. 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.
Optical encoders use lineofsight sensing to create signals. When the generator is offline and not supplying current to a load, the excitation field current is supplied by the 3phase, power potential transformer. Fr2656931a1 measuring transformer using optical means. The magneto optic 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. Magnetooptical current transformer of high bandwidth and. It works when a light source splits into two 90degree outofphase beams that pass through transparent, evenly spaced windows. Get magnetooptical current transformer technology moct seminar report and ppt in pdf and doc. This magneto optical current transducer eliminates many of the drawbacks of the conventional current transformers. Explore magneto optical current transformer technology moct with free download of seminar report and ppt in pdf and doc format. Moct optical current transformer system for metering 72. Current transducers a bulkoptics current transducer abbs first generation magnetooptic current transducer moct with more than 10 years of field experience exploits the faraday effect in a.
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. If the transformer is loaded the secondary is connected to a load, and current is flowing through it, the magnetomotive force of the secondary the product i 2 w 2 is compensated by a corresponding. During the forecast period, north america will be closely followed by asia pacific in terms of expected demand. The use of the magneto optic current transformers are widening in the instrumentation. A fiberoptic current sensor focs is a current sensor for measuring direct current. 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. Mar 17, 2014 magnetooptic current transducer moct ppt.
Moct magnetooptical current transformer seminar topics. Get humanrobot interaction seminar report and ppt in pdf and doc. 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 principles of measuring currents in highvoltage lines by magnetooptical means are described. Optical current transformers are current sensors which work on the magnetooptic effect. An optical measuring transformer is capable of measuring both the current and voltage of the primary conductor. A free powerpoint ppt presentation displayed as a flash slide show on id. By using a singleended optical fiber around the current conductor that utilizes the magnetooptic effect faraday. Magnetic oct measures the electric current by means of faraday effect.
Optical current transformer oct ppt topics for seminar. Global magneto optic current transformer market analysis. Magnetooptic current transformer free download as word doc. May 29, 2011 magnetooptical current transformer technology by prasanth sun may 29, 2011 5. The magnetooptical current transformer is based on the faradays effect. Magneto optic current transformer, ask latest information, magneto optic current transformer abstract,magneto optic current transformer report,magneto optic current transformer presentation. Ppt moctmagneto optical current transformer powerpoint presentation free to download id. These sensors work by measuring the angle of rotation of a polarized beam of light. Compensation of phase modulation disturbance in all fiber. The magnetooptic current transformer moct is a passive optical current transducer which uses light to accurately measure current on high voltage systems. 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. Conventional current transformers becomes more and more bulky and costly. Octs are based on faraday effect, interferometric principle, bragg grating and micromechanical sensors with optical readout. 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 a conventional current transformer, there is a chance of saturation of magnetic field under high current, complicated insulation and cooling structure, a chance of. The moctp system is suitable for outdoor application and has a continuous current rating. 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. The current measurement is carried out by modulation of a light signal by an optical. Fiberoptic current and voltage sensors for highvoltage. 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. For many years, optical encoders have been the traditional choice for motion control.
Compensation of phase modulation disturbance in all fiberoptical current transformer article in applied mechanics and materials 2912941. An ebook reader can be a software application for use on a computer such. Moct block diagram applications pros and cons conclusion 3. Magnetooptical current transformer technology moct seminar. In the majority of magneto optical current transformers developed to date, the main parameter is the angle of light polarization faraday rotation. Conventional current measurement in highvoltage and highemi electromagnetic. The magneto optic current transformer is used in order to assist the smooth flow of the current with a high voltage. Also get the seminar topic paper on magnetooptical current transformer technology moct with. The seminar topic is based on magneto optical current transformer presented byaishwarya verma0902011 2. 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. Current transformers cts and voltage transformers vts are used extensively in substations for measuring and monitoring voltage and current. Electric current path of primary bus has to be designed properly to minimize the mechanical forces.
Magneto optic current transformer full seminar report, abstract. Conclusion this magnetooptical current transducer eliminates many of the drawbacks of the conventional current transformers. Also get the seminar topic paper on humanrobot interaction with abstract or synopsis, documentation on advantages and. Magnetooptical current transformer ppt electrical ppt. Ieee trialuse standard for optical ac current and voltage sensing systems no short. Transformer article about transformer by the free dictionary.
Generally, an ebook can be downloaded in five minutes or less. Optical current transformeroct is defined as sensors that directly or indirectly use optical sensing methods to measure electric currents. Moctmagneto optic current transformer free download as powerpoint presentation. Magneto optic current transformer full seminar reports, pdf seminar abstract, ppt, presentation, project idea, latest technology details, ask latest information. Optical current transformer and its applications with ppt. 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.
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. With increasing drawbacks of conventional current transformers such as saturation of magnetic field under high current. In an conventional current transformers, there is a chance of. Current transducers a bulkoptics current transducer. The moct measures the electric current by means of faraday effect. Magneto optic current transformer linkedin slideshare.
Optical current transformer and its applications a4academics. 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. Advantages of optical current and voltage sensors and. Jul 03, 2017 magneto optic current transformer technology moct moct and conventional ct comparison stability ratio temperature inac 20 10 0 10 20 30 40 50 60 70 moct stability ratio conventional ct. The basic principle of fiber optic current sensors focs and optical current transformers octs is to measure polarization rotation due to the faraday effect. Magnetooptic current transformer polarization waves transformer. Download the seminar report for magneto optic current. Generally, this phenomenon can be described as follows.
The response of optical current transformer is the response ability of magnetic field of optical current transformer. Optical current transformers are current sensors which work on the magneto optic effect. 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 etc. 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. 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. Get magneto optical current transformer technology moct seminar report and ppt in pdf and doc. The fem software comsol multiphysics formerly femlab was used to simulate.
Optical current transformer market global industry. Michael faraday discovered that the orientation of linearly polarized light was rotated under the influence of the magnetic field when the. 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. Ppt optical light sources powerpoint presentation free. Also explore the seminar topics paper on magnetooptical current. Fiber optic current sensors and optical current transformers. Magneto optic current transformer market global industry.
Ppt optical light sources powerpoint presentation free to. The design allows the installation of a second optical sensor head, in order to have an extended redundancy level for the system. The magnetooptical current transformer is based on the faradays effect generally, this phenomenon can be described as follows. Optical current transformer oct linkedin slideshare. Magneto optic current transformer optics free 30day. A dissertation presented in partial fulfillment of the. In the following, we will consider optical current and voltage sensors that have been developed at abb and examples of their applications. The magneto optical current transformer is based on the faradays effect. Introduction moctprinciple the magneto optical current transformer is based on the faradays effect. Download the seminar report for magneto optic current transformer. Download optical current transformer oct ppt for electrical engineering seminar.
A wide variety of optical current transformer options. February 7th, 2017 by afsal meerankutty 1 comment an accurate current transducer is a key component of any power system instrumentation. 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. Optical measurement of currents in power converters.
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