Results 231 to 240 of about 1,605 (260)

Testing and Diagnosing Comparison Faults of TCAMs with Asymmetric Cells

IEEE Transactions on Computers, 2012
Ternary content addressable memory (TCAM) is a key component in various digital systems due to its fast lookup operation. Symmetric and asymmetric TCAM cells are two widely used cells for implementing a TCAM array. This paper presents several comparison fault models of TCAMs with asymmetric cells based on electrical defects.
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A New Digital Relay for Generator Protection against Asymmetrical Faults

IEEE Power Engineering Review, 2001
Under unbalanced conditions the three phase instantaneous power oscillates at twice the power system frequency. The magnitude of these oscillations can be used as a measure of the system unbalance. This article has introduced a new digital relaying algorithm designed to detect asymmetrical faults by monitoring the sinusoidal oscillations of the three ...
O. Usta, M. Bayrak, M.A. Redfern
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Symmetrical and asymmetrical fault currents

2004
In the previous chapter, we saw how to calculate the symmetrical fault current. This is important from the RMS heating point of view, but for distribution switchgear engineers, the asymmetrical current is of much greater importance for a number of reasons that will be discussed in this chapter.
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Masking asymmetric line faults using semi-distance codes

[1988] The Eighteenth International Symposium on Fault-Tolerant Computing. Digest of Papers, 2003
The authors propose a masking method for asymmetric line faults in LSIs using semidistance codes, which are a class of nonlinear codes. Faults caused by open or short circuit defects in line areas of LSIs can be made asymmetric by controlling the bus driver and the bus terminal gates. The conditions required for codes to mask these faults are clarified,
Kazumitsu MATSUZAWA, Eiji FUJIWARA
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Asymmetrical fault analysis using the bus impedance matrix

Proceedings of the Institution of Electrical Engineers, 1978
The method of the busbar impedance matrix is applied to the solution of asymmetrical faults through the use of sequence impedances and Kron's constraint matrix. An algorithm is proposed to facilitate the routine solution of complex configurations including simultaneous and cross-country faults.
C.B. Gray, P.N.P. Singh
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Open transistor fault detection in asymmetric multilevel inverter

2015 IEEE International Conference on Signal Processing, Informatics, Communication and Energy Systems (SPICES), 2015
The number of power semiconductor switches and DC sources will increase with the increase in the number of levels of output voltage of the multilevel inverter. As the number of power semiconductor switches increases, the possibility of its failure and hence the breakdown of the inverter operation also escalate in a nonlinear manner.
Nithin Raj, Saly George, G Jagadanand
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Fast generator protection against internal asymmetrical faults

IEEE Transactions on Power Apparatus and Systems, 1977
An on-line digital computer technique for the protection of a generator against internal asymmetrical faults is described in this paper. The proposed technique relies on the detection of a second harmonic component in the field current at the onset of a fault in the armature winding.
P.K. Dash, O.P. Malik, G.S. Hope
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Efficient Fault Tolerance for Stateful Serverless Computing with Asymmetric Logging

ACM Transactions on Computer Systems
Serverless computing separates function execution from state management. Simple retry-based fault tolerance might corrupt the shared state with duplicate updates. Existing solutions employ log-based fault tolerance to achieve exactly-once semantics, where every single read or write to the external state is associated with a log for deterministic replay.
Sheng Qi, Haoyu Feng, Xuanzhe Liu, Xin Jin 0008   +3 more
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Detection of Symmetrical/Asymmetrical Faults with DULR and XGBoost

2022 IEEE 6th International Conference on Condition Assessment Techniques in Electrical Systems (CATCON), 2022
Megha Mundra, Saksham Shah, Soumesh Chatterjee   +2 more
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Asymmetrical fault analysis on distribution feeders with inverter interfaced distributed generators

International Journal of Electrical Power and Energy Systems, 2021
Yingliang Li, Deming Wang
exaly