Results 31 to 40 of about 25,335,029 (250)

Research on Safety of Mine Power Supply System

open access: yes, 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
core   +1 more source

Study of large capacity power supply used for coal mine emergency facilities

open access: yesGong-kuang zidonghua, 2014
In view of problem that common accumulators used in underground coal mine have obvious constraints, the paper analyzed electricity demands of coal mine emergency facilities and characteristics of dry-charged lead-acid battery, developed large capacity ...
LI Meixiang, ZHOU Zhong, ZHANG Yong
doaj   +1 more source

ГІДРОАКУМУЛЮЮЧІ ЕЛЕКТРОСТАНЦІЇ ЯК ДЖЕРЕЛА РОЗПОДІЛЕНОЇ ГЕНЕРАЦІЇ У СКЛАДІ ПРОМИСЛОВИХ ЕНЕРГОСИСТЕМ

open access: yesПраці Інституту електродинаміки Національної академії наук України, 2023
The article examines the economic aspects of the efficiency of power systems for mine loads, which include peak pumped-storage hydroelectric power plants that use reservoirs of the mine underground water drainage.
О.Ю. Михайленко   +2 more
doaj   +1 more source

AQ 6201-2017 General Technical Requirements of Coal Mine Safety Monitoring System (draft for approval)

open access: yesGong-kuang zidonghua, 2017
The standard stipulates product classification, general requirements, environmental conditions, power supply, system design requirements, basic functions, software functions, main technical indexes, transmission performance, power fluctuation ...
SUN Jiping
doaj   +1 more source

Design of current sharing system for mine explosion-proof lithium power supply

open access: yesGong-kuang zidonghua, 2021
In order to solve the problem of uneven discharge current when multiple mine explosion-proof lithium power supplies are used in parallel, a current sharing system for mine explosion-proof lithium power supply is designed.
LI Qiwei1,2,3   +3 more
doaj   +1 more source

New technologies and new equipments of coal mine monitoring

open access: yesGong-kuang zidonghua, 2015
The paper analyzed the national coal production,the total number of accidents, the death rate per million tons and the changes of serious accidents. On average per year, the coal production had increased by 194 million tons, the number of accidents had ...
SUN Jiping
doaj   +1 more source

Research on Key Factors Affecting Power Supply and Demand Trend Based on Complex Correlation [PDF]

open access: yesE3S Web of Conferences, 2020
The market behaviors of the supply and demand sides in the power market are the issues that market participants, operators and regulators are most concerned about. This article starts from the two dimensions of power generation market behavior and demand
Liu Dunnan   +6 more
doaj   +1 more source

Firm Power Supply Project Committee Meeting

open access: yes, 2022
Firm Power Supply Project Committee Meeting, January 19 ...
Utah Associated Municipal Power Systems;
core   +2 more sources

Research on composite resonator network with onstant—current output for current—fed ICPT systems

open access: yesGong-kuang zidonghua, 2018
In order to solve problem of constant current wireless power supply of different sensors used in coal mine safety monitoring and control system, a composite resonator compensation network for wireless power supply were studied based on current—fed ICPT ...
HOU Chun   +3 more
doaj   +1 more source

Wind-induced vibration piezoelectric energy harvesting technology in underground mine

open access: yesMeikuang Anquan, 2021
The paper presents a scheme of collecting piezoelectric energy for underground wind-induced vibration to provide self power supply for wireless low power sensor in mine. The technology of underground wind-induced vibration piezoelectric energy collection
ZHOU Daiyong
doaj   +1 more source

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