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Stuck-at fault

About: Stuck-at fault is a research topic. Over the lifetime, 9707 publications have been published within this topic receiving 160254 citations.


Papers
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Journal ArticleDOI
01 Nov 1979
TL;DR: In this article, a completely digitalised online fault locator is proposed, which takes input signals from existing c.t.s and p.p.s, and works on a reactance-ratio-measurement principle.
Abstract: The ability to determine quickly and accurately where faults have occured on a transmission line has long been an operating man's dream. This paper describes a completely digitalised online fault locator which takes input signals from existing c.t.s and p.t.s and works on a reactance-ratio-measurement principle. It operates in less than two cycles from the instant that the relay delivers a trip output, and is therefore capable of locating transient as well as permanent short-circuit faults. Furthermore, a suitable compensation in fault-locator inputs is proposed which results in increased resistive coverage for the suggested fault locator when applied to double-end feed lines.

79 citations

Journal ArticleDOI
TL;DR: The newly developed FDI method is studied in details using an electrohydraulic steering system of an electric vehicle and GARRs are derived systematically from the HBG model with a specific causality assignment.
Abstract: Recently, a bond-graph-based fault detection and isolation (FDI) framework has been developed with a new concept of global analytical redundancy relations (GARRs) (Low, Wang, Arogeti, and Luo, 2009, 2010; Low, Wang, Arogeti, and Zhang, 2010). This new concept allows the fault diagnosis for hybrid systems which consist of both continuous dynamics and discrete modes. A failure of a safety critical system such as the steering system of an automated guided vehicle may cause severe damage. Such failure can be avoided by an early detection and estimation of faults. In this paper, the newly developed FDI method is studied in details using an electrohydraulic steering system of an electric vehicle. The steering system and faults are modeled as a hybrid dynamic system by the hybrid bond graph (HBG) modeling technique. GARRs are then derived systematically from the HBG model with a specific causality assignment. Fault detection, isolation, and estimation are applied, experimental setup is described, and results are discussed.

79 citations

Proceedings ArticleDOI
08 Nov 1992
TL;DR: Experimental results on ISCAS-85 circuits show that for relatively small numbers of diagnoses, a precomputed dictionary is more efficient.
Abstract: Fault location based on a fault dictionary is considered. To justify the use of a precomputed dictionary in terms of computation time, the computational effort invested in computing a dictionary is first analyzed. The number of circuit diagnoses that need to be performed dynamically, without the use of precomputed knowledge, before the overall effort exceeds the effort of computing a dictionary, is studied. Experimental results on ISCAS85 circuits show that for relatively small numbers of diagnoses, a precomputed dictionary is more efficient. A method to derive small dictionaries without losing resolution of modeled faults is then proposed. Methods to compact the resulting dictionary further, using compaction techniques generally applied to fault detection, are then described. Experimental results are presented to demonstrate the effectiveness of the methods presented. Internal observation points to increase the resolution of the test set are also considered.

79 citations

Proceedings ArticleDOI
26 Oct 1991
TL;DR: The results indicate that, for the investigated set of chips, Current Testing provides a better screen of defective product for some classes of defects, while Stuck Fault Testing is more effective on others.
Abstract: This paper compares the effectiveness of Stuck Fault and Current Testing, as applied to CMOS ICs. The comparison is performed by testing sequential CMOS chips using patterns developed via both methodis, and evaluating their ability to identify faulty prciduct. The test results are then contrasted to a previous study in which a smaller, combinatorial chip was tested by the same means. The results indicate that, for the investigated set of chips, Current Testing provides a better screen of defective product for some classes of defects, while Stuck Fault Testing is more effective on others.

79 citations

Journal ArticleDOI
TL;DR: In this paper, an accurate and efficient method is proposed for fault section estimation and fault distance calculation in distribution systems, based on frequency spectrum components of fault generated traveling waves, which can be divided into two parts.

79 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
202336
202298
20219
20206
20199
201846