Technologies of Batteries Used in Coal Mine Vehicles
Gong-kuang zidonghua, 2011 The paper introduced characteristics of various batteries used in trackless auxiliary haulage vehicles of coal mine including special type lead-acid battery of coal mine, flame-proof and start lead-acid battery, flame-proof and fixed lead-acid battery ...
YUAN Xiao-ming
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Setting strategy of instantaneous current quick-breaking protection for mine power grid
Gong-kuang zidonghua, 2023 The mine power grid operating environment is poor. When a short circuit fault occurs in the underground power supply system, the use of complex anti-skip trip protection device will reduce the reliability of the entire power grid and increase the cost ...
YU Qun, CUI Guoliang, GU Feng, LIU Tao
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Knowledge acquisition in supply chain partnerships: the role of power [PDF]
, 2012 Knowledge is recognised as an important source of competitive advantage and hence there has been increasing academic and practitioner interest in understanding and isolating the factors that contribute to effective knowledge transfer between supply chain
Ghobadian, A +8 more
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Design of mine cascade converter with wide input voltage range
Gong-kuang zidonghua, 2022 The converter used in the power supply has problems of low voltage gain, high voltage stress of power tube, non-electrical isolation and complex control.
LIU Yangqing, ZHOU Yuan
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Application of FACTS Devices in Power Supply Systems of Coal Mines [PDF]
E3S Web of Conferences, 2020 In this article, the authors discuss the use of FACTS devices in coal mine power systems. The problems of reactive power compensation and the disadvantages of regulatory and technical documentation regarding the use of modern reactive power compensation ...
Nepsha Fedor +4 more
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Offsetting of CO₂ emissions by air capture in mine tailings at the Mount Keith Nickel Mine, Western Australia: Rates, controls and prospects for carbon neutral mining [PDF]
, 2014 The hydrated Mg-carbonate mineral, hydromagnesite [Mg₅(CO₃)₄(OH)₂•4H₂O], precipitates within mine tailings at the Mount Keith Nickel Mine, Western Australia as a direct result of mining operations.
K. Ulrich Mayer +25 more
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Design of output filter device of mine-used high-voltage inverter for long-distance power supply
Journal of Physics: Conference Series, 2022 Abstract During the long-distance transmission of the Pulse width modulation ( PWM ) signal of the mine-used inverter, the voltage reflection phenomenon leads to a higher peak voltage at the motor end, which accelerates the insulation aging of the motor and reduces the overall reliability of the system.
openaire +1 more source
A fully digital power supply noise thermometer [PDF]
, 2009 Power Supply Noise (PSN) is one of the main concerns in scaled technology circuits, both if performance reliability must be assured and if power supply is to be dynamically reduced for dissipation regulation.
Marco D. Vittori +4 more
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Research on Safety of Mine Power Supply System
, 2021 Electric power is one of the main supplies of mine energy. The safety of electric power is of great significance to the safety of mines. The probability of blackout is relatively small. But once it happens, the harm is great.
Shan Renzhong +3 more
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Firm Power Supply Project Committee Meeting
, 2022 Firm Power Supply Project Committee Meeting, January 19 ...
Utah Associated Municipal Power Systems;
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