Fault Location for Power Transmission Systems Using Magnetic Field Sensing Coils
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Posts: 2,270
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#1
08-10-2010, 12:08 PM



Fault Location for Power Transmission Systems Using Magnetic
Field Sensing Coils


by
Kurt Josef Ferreira
A Thesis
Submitted to the Faculty
of the
WORCESTER POLYTECHNIC INSTITUTE
In partial fulfillment of the requirements for the
Degree of Master of Science
in
Electrical and Computer Engineering


Abstract



The detection and location of faults on power transmission lines is essential to the protection and maintenance of a power system. Most methods of fault detection and location rely on measurements of electrical quantities provided by current and voltage transformers. These transformers can be expensive and require physical contact with the monitored high voltage equipment. In this work, current transformers were replaced by magnetic field sensing coils. Such coils can be located remotely from substations and switching stations and do not require physical contact with the conductors. Rather than observing each individual conductor, the use of the magnetic field sensors allows the monitoring of the transmission line condition using a collective quantity. This study explores the use of the magnetic field sensors as an alternative measurement device for fault detection and location.


for more info please visite :-\
webspace.ulbsibiu.ro/maria.vintan/html/Citare_Dana_2007.pdf


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