Results 21 to 30 of about 914,586 (343)
Gong-kuang zidonghua, 2022 The coal mine power supply and distribution system usually adopts the neutral point non-effectively grounded method. Most of the power supply lines in this method use cable lines.
SI Weibin +6 more
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Study of Asymmetries in 0.4 kV Distribution Line with Different Schemes of Supply Transformers and Connection of Single-phase Renewable Energy Source [PDF]
Problems of the Regional EnergeticsThe aim of the work is studying asymmetric modes of 10/0.4 kV distribution transformers at connecting single-phase renewable energy sources. This problem is relevant due to increasingly use of such sources. To achieve this goal, calculation of asymmetric
Bosneaga V., Suslov V.
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Optimal passive filter design for effective utilization of cables and transformers under non-sinusoidal conditions [PDF]
, 2014 Transformers and cables have overheating and reduced loading capabilities under non-sinusoidal conditions due to the fact that their losses increases with not only rms value but also frequency of the load current.
Aleem, SHEA +3 more
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IEEE Access, 2022 The traction transformer is a critical electrical component in high-speed-trains. We are currently building a 6.5 MVA superconducting traction transformer which will increase transformer efficiency to 99%, halve the weight, and avoid the fire risk of the
Wenjuan Song +5 more
semanticscholar +1 more source
Influence of grid configuration on current conducting behaviour in PV installations [PDF]
, 2011 On the roof of an industrial site a 385 kWp PhotoVoltaic installation is operational. When production of this system reaches 60% of the installed power, the circuit breaker trips.
Debruyne, Colin +3 more
core +2 more sources
STUDY AND DESIGN OF SINGLE PHASE CONVERTER USING OF SINGLE PHASE TRANSFORMER
International Journal of Research -GRANTHAALAYAH, 2016 The field of electrical transformer are most important equipment which is use to convert ac voltage or current like lower to higher , higher to lower without change in the frequency . its primary side and secondary side are isolate from each other and it can higher or lower voltage level the apparent value of electrical passive element like inductive ,
Prof. G.R.Kumrey, Dr. S. K. Mahobia
openaire +2 more sources
Energies, 2022 Photovoltaic (PV) energy systems have found diverse applications in fulfilling the increasing energy demand worldwide. Transformer-less PV inverters convert the DC energy from PV systems to AC energy and deliver it to the grid through a non-isolated ...
M. Biswas +5 more
semanticscholar +1 more source
Topology review of doubly grounded transformer‐less single‐phase inverters
IET Power Electronics, 2023 Photovoltaic (PV) transformer‐less single‐phase inverters are widely used in the solar generation systems because of low cost, high power density, and high efficiency.
Zhilei Yao
doaj +1 more source
Modified Two-core Phase-shifting Transformer Based on the Classical «Delta Connection» Scheme [PDF]
Problems of the Regional Energetics, 2016 Nowadays, in joined power systems increases the role and significance of phase-shifting devices, which are used in the quality of FACTS-controllers (Flexible Alternative Current Transmission System), allowing solving various problems of modes management ...
Golub I.V., Zaitsev D.A., Zubareva I.G.
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ASPECTS REGARDING THE OPERATING REGIME IN CHARGE OF SINGLE PHASE ELECTRICAL TRANSFORMERS [PDF]
Analele Universităţii "Constantin Brâncuşi" din Târgu Jiu: Seria Inginerie, 2019 The paper presents a case study on the operating regime in charge of single-phase transformers. The case study relates to a functional model that has in its configuration a single-phase electric transformer with an apparent power of 250 VA and a ...
Cristinel Popescu
doaj