[PDF] Top 20 Intermittent turn-to-turn winding faults diagnosis in power transformers by the on-load exciting current Park's Vector Approach
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Intermittent turn-to-turn winding faults diagnosis in power transformers by the on-load exciting current Park's Vector Approach
... concerning the use of the Park's Vector Approach, has demonstrated the effectiveness of this non inva- sive technique for diagnosing malfunctions in operating three- -phase ... See full document
7
Detection of trasformer intermittent winding faults by the on-load exciting current Park`s vector approach
... arcing faults are introduced in the transformer by connecting a custom built power electronics board, at the terminals of the affected ...Basically, the ... See full document
11
A permeance-based transformer model and its application to winding interturn arcing fault studies
... investigates the behavior of power transformers under the occurrence of permanent or intermittent winding insulation ...For the study of these phenomena, a simple and ... See full document
10
Power transformers winding fault diagnosis by the on-load exciting current extended Park's vector approach
... Power transformers are essential devices in a transmission and distribution system ...is the key to profitable generation and ...among the highest on the system ... See full document
17
On-line diagnostics of transformer winding insulation failures, by Park's Vector Approach
... For the case of the Dyn5 connection, a balanced resistor load and 1% of intermittent shorted turns in the phase R of the transformer primary winding, the ... See full document
7
Incipient turn-to-turn winding fault diagnosis of power transformers by the on-load exciting current Extended Park`s Vector Approach
... In the presence of a primary winding fault, the short-circuited turns act as an autotransformer load on the winding, as shown in ...if the fault takes ... See full document
7
Transformers on-load exciting current Park`s vector approach as a tool for winding faults diagnostics
... concerning the use of the Park's Vector Approach, has demonstrated the effectiveness of this non-invasive technique for diagnosing malfunctions in operating three-phase induction ... See full document
7
Rev. LatinoAm. Enfermagem vol.23 número1
... with the originally proposed model, the one- dimensional scale showed factor loadings ranging from ...0.578 to 0.924. The adjustment ratios were: Comparative it index ...(RMSEA)=0.223. ... See full document
8
Three essays on trade credit and market power
... that the provision and uptake of trade credit is heterogeneous across firms, depending on their market ...Before the crisis, receivables days is 5 days longer for firms with high market power ... See full document
97
Tackling ionospheric scintillation threat to GNSS in Latin America
... determined by the local time, season, latitude, lon- gitude, solar and geomagnetic activity (Aarons 1982; Groves et ...and the references therein). The two geographic regions where ... See full document
9
O spatial turn: para uma sociologia do espaço.
... Henri Lefebvre ([1971]* 1991) é considerado um teórico dos funda- mentos do espaço (cf., por exemplo, Frehse, 2013a, 2013b, no prelo). Seus trabalhos dão suporte precisamente a uma sociologia do espaço de orientação ... See full document
18
Filipe Miguel Cristo Sena
... timely by increasing the size of the game. We measure the time it takes into updating models, making sure these are consistent and calculating knowledge in between ...turns. In ... See full document
130
Burmese asylum seekers in Thailand: still nowhere to turn
... UNHCR in Bangladesh has had some success lobbying for the improvement of standards across all sectors by strongly advocating to bridge the discrepancy between international protection ... See full document
2
Distressed situation and renegotiation plan: a case study
... information on the company’s relationship with its stakeholder (mainly banks, suppliers and clients), pointing out how this communication with these various stakeholders had evolved during previous years ... See full document
58
Estudo preliminar da preferência de cor para rota e seta de manobra em mapas de sistemas de guia de rota.
... designs to maps which support the navigation ...evaluating the driver’s subjective preference for colors to represent route and arrow direction in maps for these ...participated ... See full document
17
Anatomia microscópica do canal carótico e suas relações com a cóclea e a cavidade timpânica
... located in any region of the cochlea (basal turn, medium turn or apical turn); second measurement at the basal turn (located in the basal turn ... See full document
5
Conditional cash transfers, schooling and child labor : micro-simulating bolsa escola
... interesting to investigate the potential effects of changing some of the program ...of the initial motivations for undertaking this kind of ex-ante counterfactual ...shows the results ... See full document
33
Hot Resistance Estimation for Dry Type Transformer Using Multiple Variable Regression, Multiple Polynomial Regression and Soft Computing Techniques
... uses the temperature sensor at the surface of winding where in typically thermocouples and resistance thermometers are widely ...of the transformer where the maximum temperature ... See full document
7
Second language acquisition in Brazil since the social turn
... finding in relation to the categorization of SLA frameworks (presented in Figure 2) is that no studies using the language and socialization or sociocognitive approaches were ...found. ... See full document
27
A Decision Making Approach to Support Investment Analysis of Distribution Systems
... prioritization in distribution systems, Mussoi and Teive [4] suggest a methodology to optimize the value of the portfolio projects as part of the expansion planning ...considered ... See full document
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