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Search results for: fault
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Year: 2015, Volume: 15, Number: 4
... in the developed fuzzy ontology, which can identify the faults that are stage of building ontology. However, ... Number 4, 2015 Fuzzy Ontology Reasoning for Power Transformer Fault Diagnosis Farhad Davoodi SAMIRMI1, Wenhu TANG2, Qinghua ... . [1] S. Bora, "Implementing fault-tolerant services in goal-oriented multi- [19] F ...
Year: 2010, Volume: 10, Issue: 3
... in this field. operate in 32% of such faults. Table 1 provides typical fault currents on different ... 10, Number 3, 2010 Approaches in High Impedance Fault Detection A Chronological Review M. SEDIGHIZADEH1,2 ... and current for each feeder. Its polarity identified the faulty feeder. In [220], the Analysis ...
Year: 2009, Volume: 9, Issue: 3
... the single-terminal data algorithms is that location of the single-phased faults which uses only voltage they need just one terminal ... Computer Engineering Volume 9, Number 3, 2009 Single-phased Fault Location on Transmission Lines Using Unsynchronized Voltages Marcel ISTRATE1 ... by Figure 2. The frequency spectrum and time-evolution of faulty phase oscillations. In the case of transient voltages ...
Year: 2012, Volume: 12, Number: 4
... basic premises that should guide the design of overcurrent earth faults [15]. Finally, Wiles [16 ... electrical faults that may pose a risk to PVG because fault protection in order to reduce fire risk. For ... to were specifically conceived for alternating current low voltage simulate faulty conditions, in a specific PVG [20-25] ...
Year: 2014, Volume: 14, Number: 4
... Volume 14, Number 4, 2014 Detection of Inter-turn Faults in Five-Phase Permanent Magnet Synchronous Motors Harold SAAVEDRA1, ... inter-turn short circuits is developed a result some of the fault effects may remain active even to determine the most ... harmonic frequencies to be after disconnecting the faulty phase. analyzed to detect such faults. The amplitudes of these ...
Year: 2008, Volume: 8, Issue: 2
... Engineering Volume 8, Number 2, 2008 Transformer Internal Faults Simulation Amangaldi KOOCHAKI, Shahram Montasar KOUHSARI, Goodarz ... presents a novel method of modeling two phase to ground fault and three phase to ground fault internal faults in ... 7 matrix [L ], the elements related to faulty sub-coils 1 and 2 must be calculated. The ...
Year: 2012, Volume: 12, Number: 3
... to neural model inaccuracy it is important to calculate the faults in its components. In technical automatic and control ... 3, 2012 State-Space GMDH Neural Networks for Actuator Robust Fault Diagnosis Marcin MRUGALSKI, Marcin WITCZAK Institute of Control ... obtaining the adaptive thresholds for each input signal of the faulty case. Under such an assumption, the faults ...
Year: 2014, Volume: 14, Number: 2
... purposes. The study takes into consideration the open-circuit type faults. It was analyzed 5.6% [8] ... 1 Abstract — In this paper an investigation on the fault the higher number of phases. Then, the ... the ability to operate with minimal derating in performance under faulty I. INTRODUCTION conditions [2]. The ...
Year: 2009, Volume: 9, Issue: 3
... , fuzzy logic, the research is to prevent system faults. Online fault diagnosis neuro-fuzzy schemes, evolutionary programming ... , Number 3, 2009 Graphical User Interface Aided Online Fault Diagnosis of Electric Motor- DC Motor Case Study ... there are three types of faults. between nominal and faulty system. The residuals are These are presented below ...
Year: 2011, Volume: 11, Number: 2
... A New Method for Detection and Evaluation of Winding Mechanical Faults in Transformer through Transfer Function Measurements Mehdi BIGDELI1* ... of deviations were remarkable, the direction and magnitude of fault without opening the unit. This paper presents a ... electrical power supply industry, the importance of both during faulty condition and during normal condition. application of the ...
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