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- Analysing About Self Detect Protecting Equipment for Coal Mine Power Supply 矿井供电自检保护装置的分析
- Application of controlled reactor and distribution net work regulation in coal mine power supply 可控电抗器与配电网电压调整在煤矿供电中的应用
- The state of power supply in Hegang Coal Mine Bureau is introduced,and the reform plan is also put forward. 介绍了鹤岗矿务局选煤厂供电现状,提出了供电系统改造方案。
- Based on special surrounding of coal mine,a new type of monolithic switch power supply is studied,applied in the design of essential safety mineral power supply. 基于煤矿的特殊环境,研究了一种新型的单片开关电源在矿用本质安全型电源设计上的应用。
- Analyses the technological parcticability and economic advisability on local villages and towns coal mine with the technology of 10 kV direct power coal mine with the technology of 10 kV direct power supply under the mine. 论述了地方、乡镇煤矿10 kV电源下井供电的技术可行性、经济合理性。
- The power factor of mine power supply is lower,so it should be compensated.The result is optimum to use wattles power compensation fashion of concenser. 矿井供电网的功率因数偏低，必须进行功率补偿；采用电容器的无功功率补偿方式，效果较佳。
- The paper discusses the influence on mine equipment such as ventilator and pump of instantaneous voltage-drop of bus from short-circuit and lightening over voltage in mine power supply system. 论述了煤矿供电系统因受短路和雷电过电压而引起母线电压瞬时降低对矿井通风、排水等设备的影响。
- The paper introduces the current situation of the power supply system in Wulan Coal Mine, and following the general plan of tapping the northern potential by Ningxia Coal Mining Group Co. 本文介绍了乌兰煤矿供电系统的现状,按照宁夏煤业集团公司“北部挖潜”战略的总体部署对供电系统作出的改造方案。
- Design of power supply and the management system for coal mine 矿井供电设计与管理系统
- New thoughts of power supply plan of coal mine factory area 矿井工广区供电方案新思路
- They are ventilating the sap of a coal mine. 他们正在使煤矿坑道通风。
- Way of lifting power factor of coal mine power stpphy system 浅析煤矿供电线路提高功率因数的途径
- Var shock and Instantaneous Compensation in Coal Mine Power Network 煤矿电网的无功冲击与瞬态补偿
- That coal mine is no longer worked. 那个煤矿已经不经营了。
- Design and Compute System for Mine Power Supply based on GIS 基于GIS技术的矿井供电设计与计算系统
- Line voltage loss and its cut measures for mine power supply 矿山供电的线损构成与降损措施
- Switching Power Supply Classification of Coal Mine and It's Application 煤矿开关电源的分类及应用
- New Way of Power Supply Safely Underground Local Coal Mines 地方煤矿井下安全供电的新思路
- Administration of depress wastage in mining power supply 煤矿供电的降损管理
- They underwrote the coal mine's bonds. 他们同意买下该煤矿的未认购的股票。
