Results 11 to 20 of about 63,847 (255)
Simulation of the power supply system of the coal mine section [PDF]
E3S 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 +2 more sources
LiFeO4 battery power supply system for mine auxiliary transportation vehicle
Gong-kuang zidonghua, 2016 For problems of short cycle life and high maintenance cost of existing power supply of domestic mine auxiliary transportation vehicle which uses lead-acid batteries as power supply, the paper proposed application of LiFeO4 battery to the mine vehicle ...
XIAO Nan +4 more
doaj +2 more sources
Simulation modeling of the power supply system of the coal mine excavation area with facts devices [PDF]
E3S 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 +2 more sources
Lead-carbon battery energy storage system for coal mine ventilator
Gong-kuang zidonghua, 2016 In order to improve reliability of power supply and ensure safety production of coal mine, a lead-carbon battery energy storage system used as emergency power supply for coal mine ventilator was introduced, and system structure, grid access way, system ...
NIU Jianna, ZHOU You, WU Tong
doaj +2 more sources
Design of novel intrinsically safe power supply with 'ia' grade
Gong-kuang zidonghua, 2017 According to working condition of mine-used power supply in coal mine underground, novel intrinsically safe power supply with 'ia' grade was designed. The power supply uses a fully enclosed AC-DC module to eliminate special flameproof enclosure, and has ...
YU Zhixue, FANG Xupeng, ZHAO Yang
doaj +2 more sources
Research and Design Idea of a New Type of Power Supply System of Central Substation of Coal Mine
Gong-kuang zidonghua, 2010 A design idea of new type of power supply system of central substation of coal mine was proposed on the basis of analyzing existing technology status of power supply system of central substation of coal mine.
YANG Wei-yi
doaj +1 more source
Basic Requirements and Design Method of Mine-used Intrinsic Safety Power Supply
Gong-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 method and protection mode of energy-limiting circuit, and introduced main discharge mode and design ...
ZHU Qian-wei
openaire +2 more sources
Design of mine-used adaptive wide-voltage power supply with explosion-proof and intrinsic safety
Gong-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 explosion-proof and intrinsic safety.
LIU Ya-hui, GUO Jiang-tao, LIN Yin
openaire +2 more sources
Design of wide range DC input power module used in coal mine
Gong-kuang zidonghua, 2015 In view of problems that power supply voltage level and power type between mine-used sensors and DC power supply system is inconsistent, a design scheme of new type of wide range DC input and intrinsic safety type power module was put forward.
HU Yun +3 more
doaj +2 more sources
Gong-kuang zidonghua, 2017 The standard stipulates product classification, general requirements, environmental conditions, power supply, system design requirements, basic functions, software functions, main technical indexes, transmission performance, power fluctuation ...
SUN Jiping
doaj +2 more sources