Results 11 to 20 of about 450,539 (268)

Basic Requirements and Design Method of Mine-used Intrinsic Safety Power Supply

open access: yesGong-kuang zidonghua, 2012
Combining with related requirements of new national standard GB3836.4-2010 and Mining Products Safety Approval and Certification Center, the paper analyzed technical performance of mine-used intrinsic safety power supply, namely electrical isolation ...
ZHU Qian-wei
doaj   +1 more source

Design of mine-used adaptive wide-voltage power supply with explosion-proof and intrinsic safety

open access: yesGong-kuang zidonghua, 2013
For characteristics that power supplys in coal mine underground has multi input voltage grades and are susceptible to disturbed when big equipments are starting or stopping, the paper put forward a design scheme of adaptive wide-voltage power supply with
LIU Ya-hui, GUO Jiang-tao, LIN Yin
doaj   +1 more source

Design of start-up power supply system of lithium-ion battery of mine-used explosion-proof diesel locomotive

open access: yesGong-kuang zidonghua, 2014
In view of requirement of GB 3836.2-2010 that battery with precipitated combustible mixture cannot be used in flameproof shell, a start-up power supply system of lithium-ion battery of mine-used explosion-proof diesel locomotive was designed with serial ...
XIAO Linjing   +3 more
doaj   +2 more sources

Simulation of the power supply system of the coal mine section [PDF]

open access: yesE3S Web of Conferences, 2021
At present, the designing of a power supply system for mine sections is performed in accordance with obsolete regulatory documents made in the early 90s of the 20th century. This slows down the implementation of the ‘digital mining operation’ concept and
Nepsha Fedor   +3 more
doaj   +1 more source

Simulation modeling of the power supply system of the coal mine excavation area with facts devices [PDF]

open access: yesE3S Web of Conferences, 2021
The introduction of technologies for active-adaptive control of the operating modes of the power supply systems of coal mines can contribute to an increase in the energy efficiency of coal mining.
Voronin Vyacheslav   +4 more
doaj   +1 more source

Solution of the problem to optimize two-stage allocation of the material flows [PDF]

open access: yes, 2020
Purpose is to elaborate innovative and computationally efficient algorithm to solve a problem of two-stage allocation of the resource occupying continuously the specified area as well as to demonstrate the behaviour of the corresponding software ...
Bulat, Anatolii   +4 more
core   +1 more source

Study of Methods and Development of Technological Scheme for Heat Removal from Rock Waste Dump [PDF]

open access: yes, 2017
The aim of this paper is to study the methods and develop technological scheme for thermal energy removal from coal mine rock waste dumps. The prospects of renewable energy sources development in Ukraine are analyzed.
Saik, Pavlo
core   +1 more source

Setting strategy of instantaneous current quick-breaking protection for mine power grid

open access: yesGong-kuang zidonghua, 2023
The mine power grid operating environment is poor. When a short circuit fault occurs in the underground power supply system, the use of complex anti-skip trip protection device will reduce the reliability of the entire power grid and increase the cost ...
YU Qun, CUI Guoliang, GU Feng, LIU Tao
doaj   +1 more source

Fortissat minewater geothermal district heating project: case study [PDF]

open access: yes, 2017
This study summarises the findings of a feasibility assessment for a potential minewater geothermal energy system in the vicinity of the James Hutton Institute’s Hartwood Home Farm, North Lanarkshire in Scotland’s Central Belt. This study aimed to assess
Banks, David   +8 more
core   +1 more source

Overview of technologies for constructing the facilities at the Dniester pumped storage power station [PDF]

open access: yes, 2019
Purpose. Perform an overview of the construction technologies and substantiate the effectiveness of the Ukrainian experience in building a pumped storage power station (PSPS) on the Dniester River in difficult engineering-geological conditions with the ...
Horbatiuk, Yu   +4 more
core   +1 more source

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