Results 11 to 20 of about 2,817 (247)
Application of Dynamic Reactive-power Compensator Based on SVG in Coal Mines [PDF]
E3S Web of Conferences, 2023 With the improvement of automation degree of coal mine mechanical and electrical equipments, such as conveyors, crushers, mining motors, inverters, and a large number of non-linear loads, cause large reactive power consumption, power factor of coal mine ...
Li Ran, Zhang Peng, Zhang Dian-qing
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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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Protective and control relays as coal-mine power-supply ACS subsystem
IOP Conference Series: Earth and Environmental Science, 2017 V N Kostin, T E Minakova
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Design of Coal Mine Power Supply Monitoring System [PDF]
Proceedings of the 2nd International Conference on Electronics, Network and Computer Engineering (ICENCE 2016), 2016 According to the characteristics and the management pattern of coal enterprises production and supply, this paper designs a kind of mine power supply monitoring system. The system can carry out real-time monitoring, measurement, protection and control for mine power equipment, the realization of underground high, low-voltage power supply devices can be
Jun Xu, Guo Jin, Lei Shi
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Application of electric spring in coal mine power supply [PDF]
, 2020 Abstract With the continuous improvement of mine automation, coal mines have higher and higher requirements for the quality of power supply voltage, and voltage fluctuations have become one of the factors that threaten the safe operation of coal mines.
Xi Zhang, Zheng Zheng
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Modern Problems of Increasing Coal Mines Power Supply Efficiency [PDF]
E3S Web of Conferences, 2019 In this article, the authors consider the main problems of increasing the efficiency of coal mines electrical power system (EPS). The identified problems are divided into two groups: problems that can be solved at the design stage and problems that can be solved at the operation stage.
Nepsha Fedor +3 more
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Intelligent fault detection and analysis system of coal mine power based on TD-SCDMA
Gong-kuang zidonghua, 2014 In view of problem that fault of underground power supply equipment leads great hidden danger to coal mine safety production, an intelligent fault detection and analysis system of coal mine power based on TD-SCDMA technology was proposed.
PENG Yu, WANG Anyi
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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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Meikuang Anquan, 2022 In view of the contradiction between the power supply time of the logging probe in hole of the gamma logging while drilling system in coal mine and the construction period of drilling operation, the energy-saving and power-saving control method and ...
TIAN Xiaochao, JIANG Bici
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Application of three kinds of power source emergency local fan in mine heading face
Meikuang Anquan, 2022 In order to prevent the occurrence of gas over-limit accident in coal mine heading face due to local fan stopping, on the basis of the original “double fans and double power supply” of local fan in heading face, from the point of view of improving the ...
SUN Yanjun
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