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Offline FYP

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Magneto-Optical Current Transformer
« on: September 24, 2010, 12:26:34 PM »
Magneto-Optical Current Transformer



Abstract:
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. For high voltage applications, porcelain insulators and oil-impregnated materials have to be used to produce insulation between the primary bus and the secondary windings. The insulation structure has to be designed carefully to avoid electric field stresses, which could eventually cause insulation breakdown. The electric current path of the primary bus has to be designed properly to minimize the mechanical forces on the primary conductors for through faults. The reliability of  conventional high-voltage current transformers have been questioned because of their violent destructive failures which caused fires and impact damage to adjacent apparatus in the switchyards, electric damage to relays, and power service disruptions.

With short circuit capabilities of power systems getting larger, and the voltage levels going higher the conventional current transformers becomes  more and more bulky and costly also the saturation of the iron core under fault current and the low frequency response make it difficult to obtain accurate current signals under power system transient conditions.

It appears that the newly emerged Magneto-optical current transformer technology provides a solution for many of the above mentioned problems. The MOCT measures the electric current by means of Faraday Effect, which was first observed by Michael Faraday 150 years ago. The Faraday Effect is the phenomenon that the orientation of polarized light rotates under the influence of the magnetic fields and the rotation angle is proportional to the strength of the magnetic field component in the direction of optical path.


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Magneto-Optical Current Transformer
« on: September 24, 2010, 12:26:34 PM »
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Offline yasir

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Re: Magneto-Optical Current Transformer
« Reply #1 on: October 02, 2010, 04:38:10 AM »
kindly anybody can give me complete project of MOCT

Offline FYP

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Re: Magneto-Optical Current Transformer
« Reply #2 on: October 03, 2010, 02:50:29 AM »
See the Attachment.
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Offline RAYSINGHBISWAJIT

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Re: Magneto-Optical Current Transformer
« Reply #3 on: March 02, 2011, 01:14:42 PM »
THANX

Offline Aussear

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Re: Magneto-Optical Current Transformer
« Reply #4 on: April 22, 2011, 11:40:19 AM »
thanks

Offline arpitap8

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Re: Magneto-Optical Current Transformer
« Reply #5 on: August 23, 2011, 10:54:27 PM »
thnks

Offline piyushk

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Re: Magneto-Optical Current Transformer
« Reply #6 on: January 25, 2012, 08:23:34 AM »
 ;D wow
Magneto-Optical Current Transformer



Abstract:
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. For high voltage applications, porcelain insulators and oil-impregnated materials have to be used to produce insulation between the primary bus and the secondary windings. The insulation structure has to be designed carefully to avoid electric field stresses, which could eventually cause insulation breakdown. The electric current path of the primary bus has to be designed properly to minimize the mechanical forces on the primary conductors for through faults. The reliability of  conventional high-voltage current transformers have been questioned because of their violent destructive failures which caused fires and impact damage to adjacent apparatus in the switchyards, electric damage to relays, and power service disruptions.

With short circuit capabilities of power systems getting larger, and the voltage levels going higher the conventional current transformers becomes  more and more bulky and costly also the saturation of the iron core under fault current and the low frequency response make it difficult to obtain accurate current signals under power system transient conditions.

It appears that the newly emerged Magneto-optical current transformer technology provides a solution for many of the above mentioned problems. The MOCT measures the electric current by means of Faraday Effect, which was first observed by Michael Faraday 150 years ago. The Faraday Effect is the phenomenon that the orientation of polarized light rotates under the influence of the magnetic fields and the rotation angle is proportional to the strength of the magnetic field component in the direction of optical path.

Offline dabang

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Re: Magneto-Optical Current Transformer
« Reply #7 on: January 26, 2012, 02:33:22 AM »
thank u  great

Offline halfdead

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Re: Magneto-Optical Current Transformer
« Reply #8 on: February 05, 2012, 11:02:02 AM »
GUD WORK!

Offline asmaqasim

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Re: Magneto-Optical Current Transformer
« Reply #9 on: March 10, 2012, 10:02:42 AM »
NIce JOb

Offline akhidan

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Re: Magneto-Optical Current Transformer
« Reply #10 on: May 02, 2012, 06:29:53 AM »
like!

Offline akhidan

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Re: Magneto-Optical Current Transformer
« Reply #11 on: May 02, 2012, 07:09:08 AM »
like!

Offline charansai

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Re: Magneto-Optical Current Transformer
« Reply #12 on: May 30, 2012, 08:12:53 AM »
niceee

Offline roshan.tajne

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Re: Magneto-Optical Current Transformer
« Reply #13 on: September 09, 2012, 07:49:32 AM »
dsfgfdszgfdshsfdh

Offline roshan.tajne

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Re: Magneto-Optical Current Transformer
« Reply #14 on: September 09, 2012, 07:59:30 AM »
wsaegreqgera

Offline Shailesh Kumar

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Re: Magneto-Optical Current Transformer
« Reply #15 on: December 06, 2012, 04:56:32 PM »
Magneto-Optical Current Transformer



Abstract:
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. For high voltage applications, porcelain insulators and oil-impregnated materials have to be used to produce insulation between the primary bus and the secondary windings. The insulation structure has to be designed carefully to avoid electric field stresses, which could eventually cause insulation breakdown. The electric current path of the primary bus has to be designed properly to minimize the mechanical forces on the primary conductors for through faults. The reliability of  conventional high-voltage current transformers have been questioned because of their violent destructive failures which caused fires and impact damage to adjacent apparatus in the switchyards, electric damage to relays, and power service disruptions.

With short circuit capabilities of power systems getting larger, and the voltage levels going higher the conventional current transformers becomes  more and more bulky and costly also the saturation of the iron core under fault current and the low frequency response make it difficult to obtain accurate current signals under power system transient conditions.

It appears that the newly emerged Magneto-optical current transformer technology provides a solution for many of the above mentioned problems. The MOCT measures the electric current by means of Faraday Effect, which was first observed by Michael Faraday 150 years ago. The Faraday Effect is the phenomenon that the orientation of polarized light rotates under the influence of the magnetic fields and the rotation angle is proportional to the strength of the magnetic field component in the direction of optical path.

Offline waelaradi

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Re: Magneto-Optical Current Transformer
« Reply #16 on: December 09, 2012, 07:07:43 AM »
good job wd the report

Offline rakshcool

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Re: Magneto-Optical Current Transformer
« Reply #17 on: January 17, 2013, 08:06:14 AM »
aa

Offline alvish

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Re: Magneto-Optical Current Transformer
« Reply #18 on: January 31, 2013, 03:01:59 PM »
kindly please send a link this project.

Offline deepak bharadwaz

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Re: Magneto-Optical Current Transformer
« Reply #19 on: March 01, 2013, 12:52:24 PM »
kindly anybody can give me complete project of MOCT
thanks

Offline aniket3000

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Re: Magneto-Optical Current Transformer
« Reply #20 on: June 18, 2014, 11:52:35 PM »
Thanks for the project. Please give me the download link.

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