Results 11 to 20 of about 26,402,257 (196)
Design of a mine-used switching power supply
Gong-kuang zidonghua, 2018 For problems of existing mine-used switching power supply such as large harmonic current, low power factor and so on, a mine-used switching power supply was designed by use of technologies of active power factor correction and resonant soft switching ...
LIN Yin
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Design of mine-used intrinsically safe remote relay power supply
Gong-kuang zidonghua, 2016 In order to satisfy long-distance transmission requirements of sensor used on underground super long working face, a mine-used intrinsically safe remote relay power supply was designed.
LIN yi
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Design of mine-used power supply with super wide input voltage range
Gong-kuang zidonghua, 2016 For problems of existing mine-used flameproof and intrinsically safe type power supply with multiple input voltage level such as large voltage fluctuation, heavy weight and difficult maintenance, a design scheme of mine-used power supply with super wide ...
LIU Yahui
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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
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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
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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
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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
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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
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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
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Design Requirements of Mine-used Wireless Methane Sensor
Gong-kuang zidonghua, 2011 The paper analyzed performance requirements of mine-used methane sensor about stability of displayed value, response time and error limit at present, pointed out battery and communication signal of mine-used wireless methane sensor should accord with ...
WANG Xiao-song, LI Xue-ze
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