25 articole găsite pentru „transformers”.
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ELECTRIC TRACTION SUBSTATIONS STUDY OF RAILWAY
Valentin IEREMIE, Radu-Dumitru PENTUC, Cezar-Dumitru POPA, Florin BERNEA
Studiul substatiilor electrice de tractiune in contextul actual este deosebit de important, prin specificul traficului feroviar, care in ultima perioada a cunoscut o semnificativa reducere. Productia de marfuri industriale s-a diminuat mult in ultimi ani. T…
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ELIMINAREA PCB DIN ROMANIA
Dr. chim. Adriana Mariana BORS, Chim. Carmen MUNTEANU, Ing. Lucian Augustin LASLO, Geogr. Cristian Andrei IOSIF, Ing. Ana-Maria NICOLESCU
PCB reprezinta un poluant organic persistent care pericliteaza sanatatea umana si mediul inconjurator. Cu toate ca productia de echipamente cu continut de PCB a fost interzisa, incepand cu anii 1970, in anumite tari, in prezent inca se gaseste in uz o cantit…
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HIGH PERFORMANCE MAGNETIC DEVICES BASED ON NANOCRYSTALLINE MATERIALS
Andrei MARINESCU Horia GAVRILA, Ionel DUMBRAVA
During the last two decades remarkable advances occurred in the field of semiconductor devices and smart systems, by their miniaturization and performance increase. Consequently, the reduction of equipment energy consumption and dimensions has resulted. A maj…
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INTERNAL RESONANT TRANSFORMER WITH DISTRIBUTED OPEN MAGNETIC CORE
Andrei MARINESCU, Aurelia SCORNEA, Ionel DUMBRAVA
The on-site dielectric tests on cables and high power electric machines requires the achievement of some medium voltage testing facilities with reduced dimensions and weights, allowing the compensation of the important reactive energy required by the own capa…
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VECTORIAL PROBABILISTIC MODEL FOR THE UNBALANCE
FACTOR OF A THREE-PHASE ELECTRICAL NETWORK
Lambert Pierrat (Franta)
In a three-phase power electrical network, the voltage asymmetry can be split into two different components. The first component results from the network structure and possesses almost constant value caused by asymmetry of circuit elements (e.g., lines, tra…