Document Type thesis Author Name Ferreira, Kurt Josef Email Address kurtferre at gmail.com URN etd-050707-120755 Title Fault Location for Power Transmission Systems Using Magnetic Field Sensing Coils Degree MS Department Electrical & Computer Engineering Advisors Alexander E. Emanuel, Advisor James W. Matthews, Committee Member Herbert M. Pflanz, Committee Member Keywords power systems power transmission fault location Date of Presentation/Defense 2007-05-07 Availability unrestricted
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.
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