Results 21 to 30 of about 25,335,002 (250)
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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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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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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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
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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 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
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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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