Results 11 to 20 of about 25,335,029 (250)

Lead-carbon battery energy storage system for coal mine ventilator

open access: yesGong-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 Battery Management System of Mine-used DC Power Supply

open access: yesGong-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
doaj   +1 more source

Design of a new type of protection circuit of mine-used intrinsic safety power supply

open access: yesGong-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
doaj   +1 more source

Research and Design Idea of a New Type of Power Supply System of Central Substation of Coal Mine

open access: yesGong-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

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

Design Requirements of Mine-used Wireless Methane Sensor

open access: yesGong-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
doaj   +1 more source

Design of wide range DC input power module used in coal mine

open access: yesGong-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

Firm Power Supply Project Committee Meeting

open access: yes, 2021
Firm Power Supply Project Committee Meeting, July 21 ...
Utah Associated Municipal Power Systems;
core   +7 more sources

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