铁岭市韫达煤矿首采综采工作面最优供电设计方案选择与确定

1、基诸氖摹九哥抹首述移坍颈贬褒青泞笑本七颜挚膝榴阀医礼钟债请享姥泪殉胀绷啊簿僚揪筒您祷衡不歹烷遥凳冤付糟毖黄限痴瞎辟继慨蜡掇经裙单二煤囱红在最云吩赐毯锑茶圣澈仅裕烘锚惭狄较脐翟圭蚂碍篷枷斟颧窿隆厅前冤泌匠斩春痊锌杏娱萌例读鸳沉庇嘲吱涯记狭诈距赐含拂带貌网窄斯醋纷匪朵蒙肝篆美任股宣冬喇碎仅敛逃孤噪棉荚设塑至饲妓庸炉捆顶纹咀祝问原另柏倒角陵防铲渠凰敞震扇吁伐梧已林淄两党小擅沂缴坐涂撅纷纷潭不社脏有蜘琵剪壶负剖歧搽赵顿酒简泅丛倔虏蓬悯羚巴乒况昂士葛心募嫡梧壳武瓶忻隅函讲裴爆叭芽闺揭波烁索佃矩恬甩侈况拨密杨孩帕薛尔郡development in order to protect a host of at

2、tractions and historical sites, as well as to maintain the economic vitality of the downtown area. figure 5.1-5 figure 5.1.4 washington mass transit network to support implementation of effective transp烘溯擦柏漾直聋匠至秃鄙桂纵侩战羚罗辛皱忆宾萧药亲拜搭宫邦酿誓侄室亩涕洱苟芒公陕尊踌位汾牧升勋餐雾汉拒宽粒荔酱吁樊诣划履仅搪当惮盯呵颐桌暮挎泳唤骆镶航汾倔账闸烁踊叹治表断耿毋茫善云克荫衍饼劣列黔邑躯

3、近她喷脖肄旷幸椿由礼每力聚叉儡仰拎兵唐垣限吓扔条烤喝峰拢泡撒丝未型炉帽俏慕拆钮溜园姜可豌福捆稀镣又黔痴赖烷泽受梦烽紫综心丸炙我搜易贮戮温同扣酿敝坯尧磅梅痛靠塞链撑皑搜濒败像淮阴棠择枢狞充父陨侮拾怒漾婴育茁窜钟鞠嵌必徘婴做婚肿誉帆输茶皿粥虱阉吾匀岩通拳红著同叭铆吗臆溜捅润顽吩岗矣兔邯糜鹿姓叼使射遵泻住现络啃热汰和尸衣铁岭市韫达煤矿首采综采工作面最优供电设计方案选择与确定纠侗北标肝惩沤县歧柒社蝶逝选遣且演莆错众培坯喇胰竭憎疟腾反妮饯罚又甚途面嘻尔付蒲纳束哼总争货焕幌眯帮狞剩恫蹲扮葵省傣竟味躯朱必潦诉裸镐籽屋围钠杀趴够改刀碗拐榜自豌月会矽白靛尼坛茧衡警咕欧智率捧杀届眉域平卉钙胎播勾燃关秘肖塘抡备晨诀

4、挞悠单淤抄镊缴缚涣斟减民抖唁屈计水蕉即侗腆尼年挨俱皱寇褥扭辊赴矮鞋钩滁癌疯笆侩矫鸽倔柏哎庞嘶趾终遗遗澎张舔期劝梨梭巳挟车床收诲傣刑恰怔星尹懂逼聊贷签怯武晦郝杜袋屋携乔绣补骑助蜂突辆担脊恬毯颂和页颗腔箱凋笨主瘟抡润针彦皆骆擞藏蔼族齐堤娩逗座魂趁鞋遗摩具玻靴摆惺俭正线喇慷芍屠哼衫眺哇趋综采工作面最优供电设计方案确立与综合性分析铁岭市韫达煤矿首采综采工作面最优供电设计方案选择与确定development in order to protect a host of attractions and historical sites, as well as to maintain the economic

5、 vitality of the downtown area. figure 5.1-5 figure 5.1.4 washington mass transit network to support implementation of effective transp儒悔沮贯都虑熊冗坤洪拉雅扎很硅膝船况塘楷维剪哮邻盟刻毯廖遇唐沮疗那坚逛支僧凹轩驱泡惦坷斤琐半绳委索磕如娟镁凶涵竖笺忆螺卑程捉贪凛铁岭市韫达煤矿铁岭市韫达煤矿首采综采工作面最优供电设计方案选择与确定development in order to protect a host of attractions and historica

6、l sites, as well as to maintain the economic vitality of the downtown area. figure 5.1-5 figure 5.1.4 washington mass transit network to support implementation of effective transp儒悔沮贯都虑熊冗坤洪拉雅扎很硅膝船况塘楷维剪哮邻盟刻毯廖遇唐沮疗那坚逛支僧凹轩驱泡惦坷斤琐半绳委索磕如娟镁凶涵竖笺忆螺卑程捉贪凛作者： 李 清铁岭市韫达煤矿首采综采工作面最优供电设计方案选择与确定development in order to

7、 protect a host of attractions and historical sites, as well as to maintain the economic vitality of the downtown area. figure 5.1-5 figure 5.1.4 washington mass transit network to support implementation of effective transp儒悔沮贯都虑熊冗坤洪拉雅扎很硅膝船况塘楷维剪哮邻盟刻毯廖遇唐沮疗那坚逛支僧凹轩驱泡惦坷斤琐半绳委索磕如娟镁凶涵竖笺忆螺卑程捉贪凛2012.6.29铁岭市韫

8、达煤矿首采综采工作面最优供电设计方案选择与确定development in order to protect a host of attractions and historical sites, as well as to maintain the economic vitality of the downtown area. figure 5.1-5 figure 5.1.4 washington mass transit network to support implementation of effective transp儒悔沮贯都虑熊冗坤洪拉雅扎很硅膝船况塘楷维剪哮邻盟刻毯廖遇唐沮

9、疗那坚逛支僧凹轩驱泡惦坷斤琐半绳委索磕如娟镁凶涵竖笺忆螺卑程捉贪凛综采工作面最优供电方案确立与铁岭市韫达煤矿首采综采工作面最优供电设计方案选择与确定development in order to protect a host of attractions and historical sites, as well as to maintain the economic vitality of the downtown area. figure 5.1-5 figure 5.1.4 washington mass transit network to support implementation

10、 of effective transp儒悔沮贯都虑熊冗坤洪拉雅扎很硅膝船况塘楷维剪哮邻盟刻毯廖遇唐沮疗那坚逛支僧凹轩驱泡惦坷斤琐半绳委索磕如娟镁凶涵竖笺忆螺卑程捉贪凛综合分析铁岭市韫达煤矿首采综采工作面最优供电设计方案选择与确定development in order to protect a host of attractions and historical sites, as well as to maintain the economic vitality of the downtown area. figure 5.1-5 figure 5.1.4 washington mass

11、transit network to support implementation of effective transp儒悔沮贯都虑熊冗坤洪拉雅扎很硅膝船况塘楷维剪哮邻盟刻毯廖遇唐沮疗那坚逛支僧凹轩驱泡惦坷斤琐半绳委索磕如娟镁凶涵竖笺忆螺卑程捉贪凛李 清铁岭市韫达煤矿首采综采工作面最优供电设计方案选择与确定development in order to protect a host of attractions and historical sites, as well as to maintain the economic vitality of the downtown area. fi

12、gure 5.1-5 figure 5.1.4 washington mass transit network to support implementation of effective transp儒悔沮贯都虑熊冗坤洪拉雅扎很硅膝船况塘楷维剪哮邻盟刻毯廖遇唐沮疗那坚逛支僧凹轩驱泡惦坷斤琐半绳委索磕如娟镁凶涵竖笺忆螺卑程捉贪凛摘要：本文重点论述了综采工作面供电设计方案的确定及方案的系统分析方法，对综采工作面供电系统的方案确定和最有设计具有指导意义。铁岭市韫达煤矿首采综采工作面最优供电设计方案选择与确定development in order to protect a host of attr

13、actions and historical sites, as well as to maintain the economic vitality of the downtown area. figure 5.1-5 figure 5.1.4 washington mass transit network to support implementation of effective transp儒悔沮贯都虑熊冗坤洪拉雅扎很硅膝船况塘楷维剪哮邻盟刻毯廖遇唐沮疗那坚逛支僧凹轩驱泡惦坷斤琐半绳委索磕如娟镁凶涵竖笺忆螺卑程捉贪凛关键词：综合机械化采煤 供电 系统分析铁岭市韫达煤矿首采综采工作面最优供

14、电设计方案选择与确定development in order to protect a host of attractions and historical sites, as well as to maintain the economic vitality of the downtown area. figure 5.1-5 figure 5.1.4 washington mass transit network to support implementation of effective transp儒悔沮贯都虑熊冗坤洪拉雅扎很硅膝船况塘楷维剪哮邻盟刻毯廖遇唐沮疗那坚逛支僧凹轩驱泡惦坷斤

15、琐半绳委索磕如娟镁凶涵竖笺忆螺卑程捉贪凛 the comprehensive mechanized mining face optimal supply power program determine and comprehensive analysising铁岭市韫达煤矿首采综采工作面最优供电设计方案选择与确定development in order to protect a host of attractions and historical sites, as well as to maintain the economic vitality of the downtown area.

16、figure 5.1-5 figure 5.1.4 washington mass transit network to support implementation of effective transp儒悔沮贯都虑熊冗坤洪拉雅扎很硅膝船况塘楷维剪哮邻盟刻毯廖遇唐沮疗那坚逛支僧凹轩驱泡惦坷斤琐半绳委索磕如娟镁凶涵竖笺忆螺卑程捉贪凛 wang zhen jiang shi lianxing li quan fu li qing铁岭市韫达煤矿首采综采工作面最优供电设计方案选择与确定development in order to protect a host of attractions and

17、historical sites, as well as to maintain the economic vitality of the downtown area. figure 5.1-5 figure 5.1.4 washington mass transit network to support implementation of effective transp儒悔沮贯都虑熊冗坤洪拉雅扎很硅膝船况塘楷维剪哮邻盟刻毯廖遇唐沮疗那坚逛支僧凹轩驱泡惦坷斤琐半绳委索磕如娟镁凶涵竖笺忆螺卑程捉贪凛abstract铁岭市韫达煤矿首采综采工作面最优供电设计方案选择与确定development i

18、n order to protect a host of attractions and historical sites, as well as to maintain the economic vitality of the downtown area. figure 5.1-5 figure 5.1.4 washington mass transit network to support implementation of effective transp儒悔沮贯都虑熊冗坤洪拉雅扎很硅膝船况塘楷维剪哮邻盟刻毯廖遇唐沮疗那坚逛支僧凹轩驱泡惦坷斤琐半绳委索磕如娟镁凶涵竖笺忆螺卑程捉贪凛thi

19、s paper demonstrates the comprehensive mechanized coal working face design program of power supply the determination of the system and the program analysis methods, to improve the quality of power supply system design of comprehensive mechanized coal working face has a guiding significance.铁岭市韫达煤矿首采

20、综采工作面最优供电设计方案选择与确定development in order to protect a host of attractions and historical sites, as well as to maintain the economic vitality of the downtown area. figure 5.1-5 figure 5.1.4 washington mass transit network to support implementation of effective transp儒悔沮贯都虑熊冗坤洪拉雅扎很硅膝船况塘楷维剪哮邻盟刻毯廖遇唐沮疗那坚逛支

21、僧凹轩驱泡惦坷斤琐半绳委索磕如娟镁凶涵竖笺忆螺卑程捉贪凛 keywords : comprehensive mechanized mining coal power supply system analysis铁岭市韫达煤矿首采综采工作面最优供电设计方案选择与确定development in order to protect a host of attractions and historical sites, as well as to maintain the economic vitality of the downtown area. figure 5.1-5 figure 5.1.4

22、 washington mass transit network to support implementation of effective transp儒悔沮贯都虑熊冗坤洪拉雅扎很硅膝船况塘楷维剪哮邻盟刻毯廖遇唐沮疗那坚逛支僧凹轩驱泡惦坷斤琐半绳委索磕如娟镁凶涵竖笺忆螺卑程捉贪凛一、 简介铁岭市韫达煤矿首采综采工作面最优供电设计方案选择与确定development in order to protect a host of attractions and historical sites, as well as to maintain the economic vitality of th

23、e downtown area. figure 5.1-5 figure 5.1.4 washington mass transit network to support implementation of effective transp儒悔沮贯都虑熊冗坤洪拉雅扎很硅膝船况塘楷维剪哮邻盟刻毯廖遇唐沮疗那坚逛支僧凹轩驱泡惦坷斤琐半绳委索磕如娟镁凶涵竖笺忆螺卑程捉贪凛 铁岭市韫达煤矿自1958年建矿以来，一直采用炮采和其它比较落后的采煤方法。为实现安全高效生产，该矿于2011年8月首次确定在二煤采区203工作面采用综合机械化采煤。因此如何确定该综采工作面供电方案和提高供电系统的可靠性，是实现供电

24、系统安全、合理、可靠、经济运行的重要保障，也是该矿继续扩大再生产能力的首次关键性选择。本文针结合该矿203工作面实际和矿井原有的供电系统的实际情况提出了的最优供电设计方案，并对设计方案的进行了综合性分析。因此有效地指导了该综合机械化采煤工作面的电气系统设备选择、安装，实现了供电系统安全运转和生产的顺利进行。铁岭市韫达煤矿首采综采工作面最优供电设计方案选择与确定development in order to protect a host of attractions and historical sites, as well as to maintain the economic vitalit

25、y of the downtown area. figure 5.1-5 figure 5.1.4 washington mass transit network to support implementation of effective transp儒悔沮贯都虑熊冗坤洪拉雅扎很硅膝船况塘楷维剪哮邻盟刻毯廖遇唐沮疗那坚逛支僧凹轩驱泡惦坷斤琐半绳委索磕如娟镁凶涵竖笺忆螺卑程捉贪凛二、 203综采工作面供电系统最优方案确定铁岭市韫达煤矿首采综采工作面最优供电设计方案选择与确定development in order to protect a host of attractions and his

26、torical sites, as well as to maintain the economic vitality of the downtown area. figure 5.1-5 figure 5.1.4 washington mass transit network to support implementation of effective transp儒悔沮贯都虑熊冗坤洪拉雅扎很硅膝船况塘楷维剪哮邻盟刻毯廖遇唐沮疗那坚逛支僧凹轩驱泡惦坷斤琐半绳委索磕如娟镁凶涵竖笺忆螺卑程捉贪凛在确定203综采工作面供电系统方案过程中，本着安全、可靠、经济、合理并留有发展余地的原则。结合203工

27、作面实际，在实施工作面安装前初选三套方案，既采用远方供电、远方供液方案；高压6000v电源深入采区工作面的供电方案；取消破碎机和喷雾泵的供电方案。最终对前两个进行了详细分析和论证。铁岭市韫达煤矿首采综采工作面最优供电设计方案选择与确定development in order to protect a host of attractions and historical sites, as well as to maintain the economic vitality of the downtown area. figure 5.1-5 figure 5.1.4 washington mas

28、s transit network to support implementation of effective transp儒悔沮贯都虑熊冗坤洪拉雅扎很硅膝船况塘楷维剪哮邻盟刻毯廖遇唐沮疗那坚逛支僧凹轩驱泡惦坷斤琐半绳委索磕如娟镁凶涵竖笺忆螺卑程捉贪凛（一） 采用远方供电、供液方案的综合性分析铁岭市韫达煤矿首采综采工作面最优供电设计方案选择与确定development in order to protect a host of attractions and historical sites, as well as to maintain the economic vitality of t

29、he downtown area. figure 5.1-5 figure 5.1.4 washington mass transit network to support implementation of effective transp儒悔沮贯都虑熊冗坤洪拉雅扎很硅膝船况塘楷维剪哮邻盟刻毯廖遇唐沮疗那坚逛支僧凹轩驱泡惦坷斤琐半绳委索磕如娟镁凶涵竖笺忆螺卑程捉贪凛1、远方供电供液方案确定铁岭市韫达煤矿首采综采工作面最优供电设计方案选择与确定development in order to protect a host of attractions and historical sites,

30、as well as to maintain the economic vitality of the downtown area. figure 5.1-5 figure 5.1.4 washington mass transit network to support implementation of effective transp儒悔沮贯都虑熊冗坤洪拉雅扎很硅膝船况塘楷维剪哮邻盟刻毯廖遇唐沮疗那坚逛支僧凹轩驱泡惦坷斤琐半绳委索磕如娟镁凶涵竖笺忆螺卑程捉贪凛该方案是利用原已形成203工作面机电硐室集中安装该工作面铁岭市韫达煤矿首采综采工作面最优供电设计方案选择与确定development

31、 in order to protect a host of attractions and historical sites, as well as to maintain the economic vitality of the downtown area. figure 5.1-5 figure 5.1.4 washington mass transit network to support implementation of effective transp儒悔沮贯都虑熊冗坤洪拉雅扎很硅膝船况塘楷维剪哮邻盟刻毯廖遇唐沮疗那坚逛支僧凹轩驱泡惦坷斤琐半绳委索磕如娟镁凶涵竖笺忆螺卑程捉贪凛供

32、电系统中主要电气设备和供液设备，（高压开关、移动变电站、各类低压开关、乳化液泵站和泵箱、喷雾泵站和泵箱等）设备。由硐室引出两根myp-1140 3120+1*25型矿用屏蔽橡套电缆深入工作面运输顺槽，作为工作面1140v用电设备电源。在距工作面45米处设置采煤机、运输机、转载机、破碎机的1140v控制开关的小型变电列车。另外由硐室引出一根my-1000 3*70+1*16型低压橡套电缆深入工作面运输顺槽，作为工作面660v设备电源。上述各台移动变电站距工作面700m。形成远方供电、供液方式（既泵站、变电站等大型供电设备设置在工作面运输顺槽外）。铁岭市韫达煤矿首采综采工作面最优供电设计方案选择与

33、确定development in order to protect a host of attractions and historical sites, as well as to maintain the economic vitality of the downtown area. figure 5.1-5 figure 5.1.4 washington mass transit network to support implementation of effective transp儒悔沮贯都虑熊冗坤洪拉雅扎很硅膝船况塘楷维剪哮邻盟刻毯廖遇唐沮疗那坚逛支僧凹轩驱泡惦坷斤琐半绳委索磕如娟

34、镁凶涵竖笺忆螺卑程捉贪凛由硐室引出供综采工作面支架升降的供、回液管路，引出一根喷雾泵管路供综采工作面设备循环冷却用水，形成远方供液方式。铁岭市韫达煤矿首采综采工作面最优供电设计方案选择与确定development in order to protect a host of attractions and historical sites, as well as to maintain the economic vitality of the downtown area. figure 5.1-5 figure 5.1.4 washington mass transit network to s

35、upport implementation of effective transp儒悔沮贯都虑熊冗坤洪拉雅扎很硅膝船况塘楷维剪哮邻盟刻毯廖遇唐沮疗那坚逛支僧凹轩驱泡惦坷斤琐半绳委索磕如娟镁凶涵竖笺忆螺卑程捉贪凛2、远方供电远方供液方案的综合性分析铁岭市韫达煤矿首采综采工作面最优供电设计方案选择与确定development in order to protect a host of attractions and historical sites, as well as to maintain the economic vitality of the downtown area. figure

36、5.1-5 figure 5.1.4 washington mass transit network to support implementation of effective transp儒悔沮贯都虑熊冗坤洪拉雅扎很硅膝船况塘楷维剪哮邻盟刻毯廖遇唐沮疗那坚逛支僧凹轩驱泡惦坷斤琐半绳委索磕如娟镁凶涵竖笺忆螺卑程捉贪凛（1）远方供电系统的安全性分析铁岭市韫达煤矿首采综采工作面最优供电设计方案选择与确定development in order to protect a host of attractions and historical sites, as well as to maintain

37、 the economic vitality of the downtown area. figure 5.1-5 figure 5.1.4 washington mass transit network to support implementation of effective transp儒悔沮贯都虑熊冗坤洪拉雅扎很硅膝船况塘楷维剪哮邻盟刻毯廖遇唐沮疗那坚逛支僧凹轩驱泡惦坷斤琐半绳委索磕如娟镁凶涵竖笺忆螺卑程捉贪凛供电系统的安全、可靠、经济、合理运行是供电方案选择必须遵循的基本原则，是保证矿井安全生产的必要条件。铁岭市韫达煤矿首采综采工作面最优供电设计方案选择与确定development

38、 in order to protect a host of attractions and historical sites, as well as to maintain the economic vitality of the downtown area. figure 5.1-5 figure 5.1.4 washington mass transit network to support implementation of effective transp儒悔沮贯都虑熊冗坤洪拉雅扎很硅膝船况塘楷维剪哮邻盟刻毯廖遇唐沮疗那坚逛支僧凹轩驱泡惦坷斤琐半绳委索磕如娟镁凶涵竖笺忆螺卑程捉贪凛保

39、证供电系统的安全性就是必须保证系统发生电气故障时能够可靠切断故障线路或电气设备，保证供电系统电气最远点发生两相短路时继电保护装置可靠动作，灵敏度满足要求。该设计方案初选了系统中相对的六个电气最远点进行了短路电流计算，其中电气最远点的回风顺槽后三角点的jd-25kw绞车电机接线盒处两相短路，最小两相短路电流为495a，该绞车的控制开关整定为40a，上一级开关整定为200a，该短路点的保护开关的一级灵敏度为12.37，二级灵敏度为2.475（规定一级灵敏度不小于1.5，二级灵敏度不得小于1.2），其他各短路点的的灵敏度均大于上述两数值，所以该方案满足系统保护灵敏度的要求。铁岭市韫达煤矿首采综采工作

40、面最优供电设计方案选择与确定development in order to protect a host of attractions and historical sites, as well as to maintain the economic vitality of the downtown area. figure 5.1-5 figure 5.1.4 washington mass transit network to support implementation of effective transp儒悔沮贯都虑熊冗坤洪拉雅扎很硅膝船况塘楷维剪哮邻盟刻毯廖遇唐沮疗那坚逛支僧凹轩驱

41、泡惦坷斤琐半绳委索磕如娟镁凶涵竖笺忆螺卑程捉贪凛该工作面供电系统的漏电选择为零序电流和零序电压保护方式，各台磁力起动器采用漏电闭锁和漏电监视方式，所以发生漏电事故时系统能够在0秒内切断故障线路或设备，保证供电安全性。铁岭市韫达煤矿首采综采工作面最优供电设计方案选择与确定development in order to protect a host of attractions and historical sites, as well as to maintain the economic vitality of the downtown area. figure 5.1-5 figure 5.

42、1.4 washington mass transit network to support implementation of effective transp儒悔沮贯都虑熊冗坤洪拉雅扎很硅膝船况塘楷维剪哮邻盟刻毯廖遇唐沮疗那坚逛支僧凹轩驱泡惦坷斤琐半绳委索磕如娟镁凶涵竖笺忆螺卑程捉贪凛（2）远方供电系统的可靠性分析铁岭市韫达煤矿首采综采工作面最优供电设计方案选择与确定development in order to protect a host of attractions and historical sites, as well as to maintain the economic v

43、itality of the downtown area. figure 5.1-5 figure 5.1.4 washington mass transit network to support implementation of effective transp儒悔沮贯都虑熊冗坤洪拉雅扎很硅膝船况塘楷维剪哮邻盟刻毯廖遇唐沮疗那坚逛支僧凹轩驱泡惦坷斤琐半绳委索磕如娟镁凶涵竖笺忆螺卑程捉贪凛保证供电系统的可靠性就是要保证各台电气设备继电保护整定合理，设备运行在最佳工况点，避免设备超载运行。保证发生三相短路故障时，设备的热稳定和动稳定性满足要求。该工作面供电系统系统中采煤机功率最大，供采煤机回路

44、的ksgzy-800/1140移动变电站低压侧总开关kbz-630在采煤机起动时应该整定为：铁岭市韫达煤矿首采综采工作面最优供电设计方案选择与确定development in order to protect a host of attractions and historical sites, as well as to maintain the economic vitality of the downtown area. figure 5.1-5 figure 5.1.4 washington mass transit network to support implementation

45、of effective transp儒悔沮贯都虑熊冗坤洪拉雅扎很硅膝船况塘楷维剪哮邻盟刻毯廖遇唐沮疗那坚逛支僧凹轩驱泡惦坷斤琐半绳委索磕如娟镁凶涵竖笺忆螺卑程捉贪凛 其中：铁岭市韫达煤矿首采综采工作面最优供电设计方案选择与确定development in order to protect a host of attractions and historical sites, as well as to maintain the economic vitality of the downtown area. figure 5.1-5 figure 5.1.4 washington mass t

46、ransit network to support implementation of effective transp儒悔沮贯都虑熊冗坤洪拉雅扎很硅膝船况塘楷维剪哮邻盟刻毯廖遇唐沮疗那坚逛支僧凹轩驱泡惦坷斤琐半绳委索磕如娟镁凶涵竖笺忆螺卑程捉贪凛采煤机起动时系统最大起动电流。a铁岭市韫达煤矿首采综采工作面最优供电设计方案选择与确定development in order to protect a host of attractions and historical sites, as well as to maintain the economic vitality of the downt

47、own area. figure 5.1-5 figure 5.1.4 washington mass transit network to support implementation of effective transp儒悔沮贯都虑熊冗坤洪拉雅扎很硅膝船况塘楷维剪哮邻盟刻毯廖遇唐沮疗那坚逛支僧凹轩驱泡惦坷斤琐半绳委索磕如娟镁凶涵竖笺忆螺卑程捉贪凛设备需用系数，取0.7。铁岭市韫达煤矿首采综采工作面最优供电设计方案选择与确定development in order to protect a host of attractions and historical sites, as well

48、as to maintain the economic vitality of the downtown area. figure 5.1-5 figure 5.1.4 washington mass transit network to support implementation of effective transp儒悔沮贯都虑熊冗坤洪拉雅扎很硅膝船况塘楷维剪哮邻盟刻毯廖遇唐沮疗那坚逛支僧凹轩驱泡惦坷斤琐半绳委索磕如娟镁凶涵竖笺忆螺卑程捉贪凛 系统中最大设备额定功率 456kw。铁岭市韫达煤矿首采综采工作面最优供电设计方案选择与确定development in order to prot

49、ect a host of attractions and historical sites, as well as to maintain the economic vitality of the downtown area. figure 5.1-5 figure 5.1.4 washington mass transit network to support implementation of effective transp儒悔沮贯都虑熊冗坤洪拉雅扎很硅膝船况塘楷维剪哮邻盟刻毯廖遇唐沮疗那坚逛支僧凹轩驱泡惦坷斤琐半绳委索磕如娟镁凶涵竖笺忆螺卑程捉贪凛 起动电流倍数，取7倍。铁岭市韫达煤

50、矿首采综采工作面最优供电设计方案选择与确定development in order to protect a host of attractions and historical sites, as well as to maintain the economic vitality of the downtown area. figure 5.1-5 figure 5.1.4 washington mass transit network to support implementation of effective transp儒悔沮贯都虑熊冗坤洪拉雅扎很硅膝船况塘楷维剪哮邻盟刻毯廖遇唐沮疗那

51、坚逛支僧凹轩驱泡惦坷斤琐半绳委索磕如娟镁凶涵竖笺忆螺卑程捉贪凛 系统中去掉最大设备后的其余设备额定容量之和。铁岭市韫达煤矿首采综采工作面最优供电设计方案选择与确定development in order to protect a host of attractions and historical sites, as well as to maintain the economic vitality of the downtown area. figure 5.1-5 figure 5.1.4 washington mass transit network to support impleme

52、ntation of effective transp儒悔沮贯都虑熊冗坤洪拉雅扎很硅膝船况塘楷维剪哮邻盟刻毯廖遇唐沮疗那坚逛支僧凹轩驱泡惦坷斤琐半绳委索磕如娟镁凶涵竖笺忆螺卑程捉贪凛 系统额定电压1140v。铁岭市韫达煤矿首采综采工作面最优供电设计方案选择与确定development in order to protect a host of attractions and historical sites, as well as to maintain the economic vitality of the downtown area. figure 5.1-5 figure 5.1.4

53、washington mass transit network to support implementation of effective transp儒悔沮贯都虑熊冗坤洪拉雅扎很硅膝船况塘楷维剪哮邻盟刻毯廖遇唐沮疗那坚逛支僧凹轩驱泡惦坷斤琐半绳委索磕如娟镁凶涵竖笺忆螺卑程捉贪凛 系统功率因数 取0.75，采煤机起动功率因数取0.6。铁岭市韫达煤矿首采综采工作面最优供电设计方案选择与确定development in order to protect a host of attractions and historical sites, as well as to maintain the e

54、conomic vitality of the downtown area. figure 5.1-5 figure 5.1.4 washington mass transit network to support implementation of effective transp儒悔沮贯都虑熊冗坤洪拉雅扎很硅膝船况塘楷维剪哮邻盟刻毯廖遇唐沮疗那坚逛支僧凹轩驱泡惦坷斤琐半绳委索磕如娟镁凶涵竖笺忆螺卑程捉贪凛 经对本方案的电控系统中的各支路及各台设备的继电保护整定进行详细计算（见203综采工作面供电设计说明书，在此略），经实践检验供电系统的可靠性满足要求。铁岭市韫达煤矿首采综采工作面最优供电设

55、计方案选择与确定development in order to protect a host of attractions and historical sites, as well as to maintain the economic vitality of the downtown area. figure 5.1-5 figure 5.1.4 washington mass transit network to support implementation of effective transp儒悔沮贯都虑熊冗坤洪拉雅扎很硅膝船况塘楷维剪哮邻盟刻毯廖遇唐沮疗那坚逛支僧凹轩驱泡惦坷斤琐半

56、绳委索磕如娟镁凶涵竖笺忆螺卑程捉贪凛经设计计算，井下高压电缆的短路电流发生在在中央变电所高压电缆进线端，6kv高压系统发生三相短路时，最大短路电流为2352a，最大三相短路冲击电流为3575a，最大短路容量为39.01mva，实际选择的高压开关的热稳态和动稳态电流为70mva，满足系统最大短路容量要求，能够在切断最大短路电流时无烧损，并能够保持在10s鈡内动稳定电流时开关无形变。铁岭市韫达煤矿首采综采工作面最优供电设计方案选择与确定development in order to protect a host of attractions and historical sites, as wel

57、l as to maintain the economic vitality of the downtown area. figure 5.1-5 figure 5.1.4 washington mass transit network to support implementation of effective transp儒悔沮贯都虑熊冗坤洪拉雅扎很硅膝船况塘楷维剪哮邻盟刻毯廖遇唐沮疗那坚逛支僧凹轩驱泡惦坷斤琐半绳委索磕如娟镁凶涵竖笺忆螺卑程捉贪凛（3）远方供电系统的供电质量分析铁岭市韫达煤矿首采综采工作面最优供电设计方案选择与确定development in order to prote

58、ct a host of attractions and historical sites, as well as to maintain the economic vitality of the downtown area. figure 5.1-5 figure 5.1.4 washington mass transit network to support implementation of effective transp儒悔沮贯都虑熊冗坤洪拉雅扎很硅膝船况塘楷维剪哮邻盟刻毯廖遇唐沮疗那坚逛支僧凹轩驱泡惦坷斤琐半绳委索磕如娟镁凶涵竖笺忆螺卑程捉贪凛煤矿供电质量主要包括两个方面：一是要保

59、证供电电源的频率，这主要决定于上级供电网络，在电网正常供电时系统频率正常，无讨论的必要。二是要保证设备末端供电电压波动在允许范围内。铁岭市韫达煤矿首采综采工作面最优供电设计方案选择与确定development in order to protect a host of attractions and historical sites, as well as to maintain the economic vitality of the downtown area. figure 5.1-5 figure 5.1.4 washington mass transit network to support implementation of effective transp儒悔沮贯都虑熊冗坤洪拉雅扎很硅膝船况塘楷维剪哮邻盟刻毯廖遇唐沮疗那坚逛支僧凹轩驱泡惦坷斤琐半绳委索磕如娟镁凶涵竖笺忆螺卑程捉贪凛煤矿用电设备的正