Results 21 to 30 of about 25,401,023 (249)
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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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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Design of Battery Management System of Mine-used DC Power Supply
Gong-kuang zidonghua, 2012 The paper introduced overall structure and designs of hardware and software of battery management system of mine-used DC power supply. The system assesses remaining capacity by detecting charge current and discharge current to ensure continuous power ...
TIAN Wei-ming
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Design of a new type of protection circuit of mine-used intrinsic safety power supply
Gong-kuang zidonghua, 2013 The paper put forward a design scheme of a new type of protection circuit of mine-used intrinsic safety power supply with LM339 comparator and MAX4080SASA current detection chip based on the analysis of advantages and disadvantages of traditional ...
ZHOU Xue-feng
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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 ...
ZHU Qian-wei
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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
LIU Ya-hui, GUO Jiang-tao, LIN Yin
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Gong-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
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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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Firm Power Supply Project Committee Meeting
, 2021 Firm Power Supply Project Committee Meeting, July 21 ...
Utah Associated Municipal Power Systems;
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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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