Results 11 to 20 of about 897,839 (267)
High Voltage, 2022 The collectors of electronic transformers has the problem of electromagnetic incompatibility under the operation of disconnecting switches, which limits their wide application in smart grids.
Qi Wang +6 more
doaj +1 more source
Vehicles testing at low ambient temperatures
Vojnotehnički Glasnik, 1999 This paper presents the problem of vehicles usability at low ambient temperatures. Which problems in military vehicles and how to solve them is the purpose of this study.
Saviša Todorović +2 more
doaj +1 more source
Assessment of long thermal ageing on the oil-paper insulation [PDF]
, 2016 Electric power equipment has complex construction. Therefore, it is very important to have enough information about the state of equipment. High voltage transformers play a very important role in the electric power system. One of the most important parts
Kolcunová, Ira +2 more
core +2 more sources
The method for increasing the efficiency of equipment’s maintenance in railway traction power supply systems [PDF]
Archives of Transport, 2018 Purpose. To develop the method for increasing the efficiency of the equipment’s maintenance and repair system, ensuring necessary level of operational reliability of the equipment, safety and reliability of the electric equipment with minimal expenses on
Oleksandr Matusevych +2 more
doaj +1 more source
Ultracapacitors equipped hybrid electric MicroCar
IET Electric Power Applications, 2010 The main purpose of the study is to describe a small size hybrid vehicle having ultracapacitors (UCs) as on-board storage unit. The vehicle on-board main power supply is achieved by a genset being formed of a 250 cc internal combustion engine and a permanent magnet (PM) synchronous electric generator, whereas four 16 V-500 F UCs modules are connected ...
LIDOZZI, ALESSANDRO +2 more
openaire +3 more sources
Effect of Multiple Reclosing Time Intervals on Axial Vibration of Winding
Applied Sciences, 2023 When a transformer suffers a permanent fault, it will suffer a short-circuit impulse again after reclosing. If the previous vibration of the winding is not attenuated completely and the winding is subjected to a secondary impulse within a short time, the
Lu Sun +12 more
doaj +1 more source
Mechanical Engineering Journal, 2018 Conventionally, designers of electronic equipment structures visually inspect the insulation distance or check it by using CAD software functions. However, unintentionally failed detection and overdetection of objects being inspected can cause problems ...
Takashi HAMAGUCHI +2 more
doaj +1 more source
Evaluation of the Inter-repair Operation Period of Electric Submersible Pump Units [PDF]
, 2020 In recent years, in the oil and gas industry of Azerbaijan, the use of electric submersible pumps (SEP) as one of the effective way to increase the level of production of well products. Currently, electric centrifugal pumping units (ECPU) are widely used
Abasova, S. M. (Sevinj) +1 more
core +3 more sources
Numerical Modeling of Space–Time Characteristics of Plasma Initialization in a Secondary Arc
Energies, 2019 A numerical model based on the finite element simulation software COMSOL was developed to investigate the secondary arc that can limit the success of single-phase auto-reclosure solutions to the single-phase-to-ground fault.
Jinsong Li +4 more
doaj +1 more source
EnergiesPartial discharge, as an important indicator of insulation degradation in transformers, is a crucial means of assessing the insulation performance of transformers.
Zhiqin Ma +6 more
doaj +1 more source