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Search results for: fault
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Year: 2011, Volume: 11, Number: 2
... x, y, z, t ‚ K. Hence, there are perform vulnerability assessments based on the simulation equivalence relationships between distinct elementary of random or intentional faults [15]. In [16], the authors extensions pairs: present two extension algorithms to generate the minimum e xy € e zt € e ...
Year: 2011, Volume: 11, Number: 2
... determined by the RPFC would be better than a conventional phase shifting rotor position. Fig.1 shows a rotary phase shifting transformer. RPST is also more suitable for handling fault transformer (RPST) which the magnetic axes of its primary conditions than PST and SSSC. Omitting the magnetizing and secondary windings are displaced from each other by ...
223. On Line Current Monitoring and Application of a Residual Method for Eccentricity Fault Detection
Year: 2011, Volume: 11, Number: 1
... is the size of the gap in the absence of default, rA(t) rB(t) ... ›V € ›X ›I (5) of faults in induction motors. We develop an approach based ... Current Monitoring and Application of a Residual Method for Eccentricity Fault Detection Abderrezak METATLA1, Samia BENZAHIOUL1, Tahar BAHI2 ...
Year: 2011, Volume: 11, Number: 1
... protect the IM from mechanical decade, a significant number of scientific papers have been faults. Digital Object Identifier 10.4316/AECE.2011.01008 49 1582-7445© 2011 AECE Advances in ... , ISBN 1- technologies named "PRODI €“ Power plants Robustification 55617-516-7 based on fault Detection and Isolation algorithms" contract [16] B. Jefteni‡, V.Vasi‡ ...
Year: 2010, Volume: 10, Issue: 4
... Control, 22(2). 1997. Pp.212-222. applied only for symmetrical faults; in addition a highly [6] V.I. Utkin, Sliding Mode ... Q I qLh I dLh b) In the second stage, a voltage dip fault that is 50% lower than the rated value is produced at t= ...
Year: 2010, Volume: 10, Issue: 4
... average of the current value and all the intense radon emission due to seismic earth faults preceding values. movements [12]. Three cases have been considered to ... the presumed increase Radiation monitoring, Radioactive pollution, Remote of Radon concentration near seismic fault lines occurring monitoring. before earthquakes and for environment quality monitoring in accord with ...
Year: 2010, Volume: 10, Issue: 4
... or synchronous machines due to lack of windings on the stator or translator structure, Index Terms €” Linear switched reluctance motor, finite easier manufacturing and maintenance, good fault element analysis, force ripple, FFT tolerance capability [1]. LSRMs are classified as (a) longitudinal flux (b) transverse flux. This ...
Year: 2010, Volume: 10, Issue: 4
... and small dimensions, it brings up the power coefficient of the job being done [6 ,7]. system to the optimum level, it reduces the faults to minimum In this study, measurement of the reactive power in and reduces the cost. Furthermore, the portability feature of single-phase systems has been developed, ...
Year: 2010, Volume: 10, Issue: 4
... not have equal medians. The test rejects the null buckling (figure 7, knee angle at about 32‚). The ONZOFF hypothesis of equal medians at the default 5% significance controller reacts and smoothly brings the trajectory within level. The probability of observing the given result, or one the ZONE subspace (figure 9 ...
Year: 2010, Volume: 10, Issue: 3
... II. WAVELET PACKET TRANSFORM Several techniques to detect these faults have been proposed The wavelet Packet Transform (WPT ... 3, 2010 A New Protection Scheme for High Impedance Fault Detection using Wavelet Packet Transform Navid GHAFFARZADEH and Behrooz ... cases the hidden layer with reference to overall system and non-fault cases) are simulated with various parameter performance [ ...
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