Hybrid, high speed fault detection based on instantaneous line voltages

Graduate Thesis Or Dissertation

Public Deposited

Citeable URL: https://ir.library.oregonstate.edu/concern/graduate_thesis_or_dissertations/qz20sw227

Descriptions

Attribute Name	Values
Creator	Ramchandani, Hiranand Balchand
Abstract	This fault detection scheme is based on sampling the instantaneous phase voltages and checking their sum and magnitude against a specified voltage. Faults on the system cause unbalances and distortion of the phase voltages and currents. The currents and voltages change in magnitude and/or phase position with respect to the prefault condition. The measurement of this deviation from the normal condition indicates a fault. This scheme detected the fault within one-half cycle (8 milliseconds) in the laboratory. It is shown that this scheme is simpler and faster to implement than conventional detection schemes.
Resource Type	Dissertation
Date Available	2013-10-29T19:49:41+00:00
Date Issued	1977-10-25
Degree Level	Doctoral
Degree Name	Doctor of Philosophy (Ph.D.)
Degree Field	Electrical and Computer Engineering
Degree Grantor	Oregon State University
Commencement Year	1978
Advisor	Engle, John F.
Academic Affiliation	Electrical and Computer Engineering
Non-Academic Affiliation	Oregon State University. Graduate School
Subject	Protective relays
Rights Statement	Copyright Not Evaluated
Publisher	Oregon State University
Peer Reviewed	No
Language	English [eng]
Digitization Specifications	File scanned at 300 ppi (Monochrome) using ScandAll PRO 1.8.1 on a Fi-6670 in PDF format. CVista PdfCompressor 4.0 was used for pdf compression and textual OCR.
Replaces	http://hdl.handle.net/1957/43567

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