Moct magnetooptical current transformer seminar topics. Moct optical current transformer system for metering 72. Preliminary measurements of 1200 arms nominal current at 50 hz in highvoltage power line under 300 kv with accuracy of 1. Download the seminar report for magneto optic current transformer. 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. Transformer transformer,construction of magnetoptical of transformer,winding,equivalent circuit diagram,emf equation,theory of operation powerpoint ppt presentation free to view. To measure currents power stations and substations conventionally employ inductive type current transformers. The response of optical current transformer is the response ability of magnetic field of optical current transformer. Optical current transformer oct ppt topics for seminar. If so, share your ppt presentation slides online with.
Transformers designed with a square bh loop will result in better. The moct measures the electric current by means of faraday effect, which was first observed by michael faraday 150 years ago. Current transformers cts and voltage transformers vts are used extensively in substations for measuring and monitoring voltage and current. The current transformer will operate into either a short circuit or a resistive load until the voltage induced is enough to.
Some of the slides include animations, which can be seen by viewing the powerpoint file as a slide show. To measure currents power stations and substations conventionally employ inductive type current transformers with core and windings. Introduction moct principle the magneto optical current transformer is based on the faradays effect. Magnetooptical current transformer ppt electrical ppt. A future technology for energy storage night vision can machines think. Fiber optic current sensors and optical current transformers. Contents current transformer moct principle,working,design moct. Download optical current transformer oct ppt for electrical engineering seminar. 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. Conventional current transformers becomes more and more bulky and costly. Ppt moctmagneto optical current transformer powerpoint.
Magnetooptical current transformer technology moct. V is the verdet constant of magneto optical material, b is the magnetic flux density along the optical path, l is the optical path. Some of the main features of optical current transformer are. The moct measures the electric current by means of faraday effect. 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. Which of the following does not change in a transformer. The moct measures the rotation angle caused by the magnetic field and converts it into a signal of few volts proportional to the. Optoelectronic current transformer based on remotely. Magneto optic current transformer technology moct analyzer is that photo detectors can only detect the intensity of light, rather than the orientation of polarizations.
Moct magnetic optical current transformer voltage sag analysis 7 distribution system relaying electrolytic hydrogen. Abb launches new moctp optical instrument transformer for. 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. 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. The path of a magnetic flux in a transformer should have a high resistance b high. Ppt moctmagneto%20optic%20current%20transduser powerpoint. Michael faraday discovered that the orientation of linearly polarized light was rotated under the influence of the magnetic field when the. This has required the use of an auxiliary current transformer or optical isolator to avoid such problems.
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. 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. Figure 2 depicts the most basic magnetic circuit of an ideal instrument transformer. Magnetic optical or faraday effect was reported by. Forces via energy conservation energy method pdf 1. It appears that the newly emerged magneto optical current transformer technology provides a solution for many of the above mentioned problems. As a current passes through the primary winding it induces a magnetic flux in the steel core. The magnetooptic current transformer moct is a passive optical current transducer which uses light to accurately measure current on high voltage systems. Advantages of optical current and voltage sensors and. Most current sensor principles are based on some kind of magnetic field measurement. Department of electrical and electronics engineering, vignans institute of information technology, duvvada. 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. Electric current path of primary bus has to be designed properly to minimize the mechanical forces.
A presentation on magneto optical current transformer moct submitted by. Oct 07, 2019 moctmagneto optical current transformer powerpoint ppt presentation. A fiberoptic current sensor focs is a current sensor for measuring direct current. With product ranges available offering polarization maintaining, bendinsensitive, rareearth doped, claddingpump and photosensitive fibers. This magneto optical current transducer eliminates many of the drawbacks of the conventional current transformers. Optical current transformer oct is defined as sensors that directly or indirectly use optical sensing methods to measure electric currents.
Instrument transformer basic technical information and. Conventional current transformers use the principle of electro. 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. The construction of transformers varies greatly, depending on their applications, winding voltage and current ratings and operating frequencies.
Adaptive piezoelectric energy harvesting circuit liquid electricity magneto hydrodynamic power generation technology mhd 1. 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 commercialization of specialty fibers. What is the abbreviation for magnetic optical current transformer. Current transformer errors and transformer inrush as.
Octs are based on faraday effect, interferometric principle, bragg grating and micromechanical sensors with optical readout. Transformer transformer,construction of magnet optical of transformer,winding,equivalent circuit diagram,emf equation,theory of operation powerpoint ppt presentation free to view. It appears that the newly emerged magnetooptical current transformer technology provides a solution for many of the above mentioned problems. Magneto optic current transformer seminar report pdf. We will fix it for you optical current transformer. In recent years optical current and voltage transducers have reached a high degree of maturity and started to compete with conventional instrument transformers. Generally, this phenomenon can be described as follows. Download the seminar report for magneto optic current. Department of optoelectronics, silesian university of technology, 2 krzywoustego st. Magneto optical current transformer technology by prasanth.
The adobe flash plugin is needed to view this content. The transformer is used to transfer electrical energy from high voltage windingto low voltage winding or vice versa through magnetic field. Extensive bandwidth, able to measure both dc and ac current up to 100 harmonic. The magneto optical current transducer eliminates many of the drawbacks of the conventional current transformers. 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. 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. Magneto optic current transformer technology moct by. The seminar topic is based on magneto optical current transformer presented byaishwarya verma0902011 2. Magneto optic current transformer full seminar report, abstract. 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. Ppt moct magneto optical current transformer powerpoint presentation free to download id. During the forecast period, north america will be closely followed by asia pacific in terms of expected demand. Contents introduction ct purpose and demerits moct principle, design, working.
This section contains lecture notes in both pdf and powerpoint formats. Explore magnetooptical current transformer technology moct with free download of seminar report and ppt in pdf and doc format. Magnetooptical current transformermoct seminar report. 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. Moct magneto optical current transformer is the property of its rightful owner. In the following, we will consider optical current and voltage sensors that have been developed at abb and examples of their applications. One of these devices is optical current transformer oct. Moct measures the rotation angle of the plane polarized lights caused by the magnetic field and convert it into a signal of few volts proportional to the magnetic field. An accurate electric current transducer is a key component of any power system instrumentation. A free powerpoint ppt presentation displayed as a flash slide show on id. The magnetic material used to design transformer, tl, has an impact on line regulation. Sep 11, 2016 the iccs consists of an inductive current transformer having a primary winding, a small core and a minimizedloss secondary winding. Mar, 2014 download optical current transformer oct ppt for electrical engineering seminar.
Introduction an accurate electric current transducer is a key component of any power system instrumentation. Magnetooptical current transformer technology moct seminar. 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. May 29, 2011 magnetooptical current transformer technology by prasanth sun may 29, 2011 5. Fiberoptic current and voltage sensors for highvoltage. Magnetooptical current transformermocttechnology provides a solution for many of the above mentioned problems. The faraday effect is the rotation of the polarization state of light.
Moct magneto optical current transformer powerpoint ppt presentation. 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 current transformer market global industry analysis. The moct p system is suitable for outdoor application and has a continuous current rating. 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. Optical current transformer market global industry. Scribd is the worlds largest social reading and publishing site. The current transformer function is different than that of a voltage transformer. The moctp system is suitable for outdoor application and has a continuous current rating. Current measurement with optical current transformer. Download moct ppt for seminar in electrical engineering. Free download complete engineering seminar magneto optic current transformer seminar report pdf. Get magneto optical current transformer technology moct seminar report and ppt in pdf and doc.
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 transformer oct linkedin slideshare. Introduction to moct an accurate electric current transducer is a key component of any power system instrumentation. Explore magneto optical current transformer technology moct with free download of seminar report and ppt in pdf and doc format. Moct block diagram applications pros and cons conclusion 3. The basic principle of fiber optic current sensors focs and optical current transformers octs is to measure polarization rotation due to the faraday effect. 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. Conclusion this magneto optical current transducer eliminates many of the drawbacks of the conventional current transformers.
Moct abbreviation stands for magnetic optical current transformer. Main advantage of an moct is that there is no need to break the conductor to enclose the optical path in the current carrying circuit and there is no electromagnetic interference. The most efficient transformer core is one that offers the best path for the most lines of flux with the least loss in magnetic and electrical energy. The magneto optical current transformer is based on the faradays effect. Fiberoptic transducers are ideally adapted to highvoltage environments as they are highly immune to electro magnetic interference and there is no galvanic connection. The paper presents the experimental results of the investigations of optical. Contents current transformer moct principle,working,design moct block diagram applications advantages. V is the verdet constant of magnetooptical material, b is the magnetic flux density along the optical path. Chapter 16 current transformer design wordpress for the. 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 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.