Results 21 to 30 of about 246,265 (278)
Gong-kuang zidonghua, 2020 Collect screen paperboard of mine power transformer and ordinary power transformer in practical lifetime cycle to make insulation test samples, and according to the standard of power, use test means such as viscosity tester, scanning electron microscopy ...
ZHOU Yiheng +3 more
doaj +1 more source
Development of fuzzy classifier for technical condition ranking of power transformer
Electrical engineering & Electromechanics, 2023 The work aim is to develop a fuzzy classifier for technical condition ranking of power transformer under condition of vagueness and ambiguity diagnostic information. Methodology.
E. I. Bardyk, N. P. Bolotnyi
doaj +1 more source
Influence of Molecule Structure on Lightning Impulse Breakdown of Ester Liquids
Energies, 2021 Ester liquids are environmentally friendly insulating oils, and they can be used as an alternative to mineral oil in transformers, even though in most countries spills of ester oils must be treated like spills of mineral oil.
Huaqiang Li +5 more
doaj +1 more source
Less-conventional low-consumption galvanic separated MOSFET-IGBT gate drive supply [PDF]
, 2017 A simple half-bridge, galvanic separated power supply which can be short circuit proof is proposed for gate driver local supplies. The supply is made while hacking a common mode type filter as a transformer, as the transformer shows a good insulation, it
Bikorimana, Jean Marie Vianney +1 more
core +3 more sources
Applied Sciences, 2017 To improve the reliability of power supply in the case of the fault of distribution system with multiple distributed generators (DGs) and reduce the influence of node voltage fluctuation on the stability of distribution system operation in power ...
Gang Xu, Shunyu Wu, Yuanpeng Tan
doaj +1 more source
Energies, 2022 There were many promising superconducting materials discovered in the last decades that can significantly increase the efficiency of large power transformers.
Tamás Orosz
doaj +1 more source
The greenhouse gas emissions of power transformers based on life cycle analysis
Energy Reports, 2022 The power sector contributes about 40% of global GHG emissions, and power transformers are an important physical component of the power sector. It is responsible for the transformation and distribution of electrical energy.
Hong Guo, Yuting Gao, Junhao Li
doaj +1 more source
Probabilistic impact of wind energy integration on distribution transformers
Energy Reports, 2020 In traditional power grid, the direction of power flow of transformers is usually fixed in one direction. However, with the integration of the renewable energy sources, such as wind farms, the power flow in the grid becomes fluctuating and uncertain ...
Quan Li, Nan Zhao
doaj +1 more source
A 2.7-kW, 29-MHz class-E/F/sub odd/ amplifier with a distributed active transformer [PDF]
, 2005 A Class-E/Fodd high power amplifier (PA) using the distributed active transformer (DAT) is demonstrated at 29MHz. The DAT combines the output power from four VDMOS push-pull pairs.
Jeon, Sanggeun, Rutledge, David B.
core +1 more source
A Solid State Transformer model for power flow calculations [PDF]
, 2017 This paper presents the implementation of a Solid State Transformer (SST) model in OpenDSS. The goal is to develop a SST model that could be useful for assessing the impact that the replacement of the conventional iron-and-copper transformer with the SST
Guerra Sánchez, Luis Gerardo +1 more
core +2 more sources