1、Leaders: provincial agricultural work Conference held in XX, which is our concern and love, will greatly promote XX agricultural and rural economic development. First of all, I am representing XX municipal party Committee and Government, extend a warm welcome to the attending leaders! XX has been gi
2、ven support and assistance to the province of agriculture, provincial agricultural Office, and expressed heartfelt thanks to all the friends! below, I XX with a brief report. A basic XX of XX municipality located (cities, omitted). One is the superior ecological environment. XX blue, clear, green, w
3、ater, air, 70% of land in the territory is covered with forests, grasslands, wetlands and waters, built 7 thousands of square kilometers of the total area of nature reserves. Within major industrial pollution sources, air quality at the national level, national levels, water quality, soil pollution,
4、 “pure land“ reputation, was heralded by the United Nations environmental officials “the most suitable place for human survival.“ Second, the enrichment of natural resources. A total area of more than 5 million mu of arable land (which owned 1.53 million acres), the annual grain output of more than
5、2 million tons and is located in the internationally recognized gold “cattle“, there should be more than 400,000 acres of grazing grassland, developing animal husbandry conditions; a total area of 4.1 million acres of forest land, rich in precious wood such as pine, ash, yellow pineapple, standing t
6、imber volume of more than 26 million cubic meters. Forest Xia has hundreds of species precious wildlife, more than 200 more species precious herbs, annual Super thousand tons of wild mushroom and reserves Super 100,000 tons of mountain dish; nectar plant throughout, can bee 100,000 group, is China “
7、bee of Xiang“, and national Northeast black bee reserves and important of bee products production base; can using water 2.5 billion cubic metres, should be fishing water 460,000 acres, rich big salmon, and “three spent five Luo“, North cold water specialty fish; found and proved reserves of mineral
8、resources has 36 species. Third, geopolitical advantages. XX open midpoint is located in the eastern part of the province along the border, 264 km long border, with national road passenger and freight transport port, built on the border between China and Russia has the largest permanent boundary Riv
9、er Bridge, running at full capacity the annual cargo capacity of up to 2.6 million tons. Russia two (HABA and Marina), two cities (Iman and Lesozavodsk) is the Russian Far East in developed areas. Lesozavodsk is only 8 km from XX port corresponding to the port of markovo, Lu Rinuo station is one of
10、three railway marshalling yards in the far East, the far East-Siberian railway and a parallel road runs through the pass. By rail and road, to the North by HABA capital Khabarovsk, the Russian hinterland, radiation in the CIS and Eastern European countries; to the South through the port of Vladivost
11、ok and the nahuo card on the sea, to reach South Korea, Japan and other Pacific Rim countries and regions. Four is rich in tourism resources. XX tourist resources types, many attractions, beautiful scenery of the Sino-Russian border-river-wusuli River, a famous treasure island, known as the “Orienta
12、l Maginot line“ of the Japanese invading army Tiger underground fortress ruins, General Chi论城市轨道交通的供电组成及安装工艺摘要：1.三管三控一协调；2. 努力钻研专业技术业务，从现场功关中获取效益；3.让高科技手段为项目服务；4.为企业培养新一代技术型管理人才。关键词： 牵引变电所设备安装目 录中文摘要 1前言 .2牵引变电所 .21 牵引变电所组成 .22 电力线路设备安装程序 .33 变电所设备安装步骤及要求 44 职业总结 .4结束语 .8Leaders: provincial agricult
13、ural work Conference held in XX, which is our concern and love, will greatly promote XX agricultural and rural economic development. First of all, I am representing XX municipal party Committee and Government, extend a warm welcome to the attending leaders! XX has been given support and assistance t
14、o the province of agriculture, provincial agricultural Office, and expressed heartfelt thanks to all the friends! below, I XX with a brief report. A basic XX of XX municipality located (cities, omitted). One is the superior ecological environment. XX blue, clear, green, water, air, 70% of land in th
15、e territory is covered with forests, grasslands, wetlands and waters, built 7 thousands of square kilometers of the total area of nature reserves. Within major industrial pollution sources, air quality at the national level, national levels, water quality, soil pollution, “pure land“ reputation, was
16、 heralded by the United Nations environmental officials “the most suitable place for human survival.“ Second, the enrichment of natural resources. A total area of more than 5 million mu of arable land (which owned 1.53 million acres), the annual grain output of more than 2 million tons and is locate
17、d in the internationally recognized gold “cattle“, there should be more than 400,000 acres of grazing grassland, developing animal husbandry conditions; a total area of 4.1 million acres of forest land, rich in precious wood such as pine, ash, yellow pineapple, standing timber volume of more than 26
18、 million cubic meters. Forest Xia has hundreds of species precious wildlife, more than 200 more species precious herbs, annual Super thousand tons of wild mushroom and reserves Super 100,000 tons of mountain dish; nectar plant throughout, can bee 100,000 group, is China “bee of Xiang“, and national
19、Northeast black bee reserves and important of bee products production base; can using water 2.5 billion cubic metres, should be fishing water 460,000 acres, rich big salmon, and “three spent five Luo“, North cold water specialty fish; found and proved reserves of mineral resources has 36 species. Th
20、ird, geopolitical advantages. XX open midpoint is located in the eastern part of the province along the border, 264 km long border, with national road passenger and freight transport port, built on the border between China and Russia has the largest permanent boundary River Bridge, running at full c
21、apacity the annual cargo capacity of up to 2.6 million tons. Russia two (HABA and Marina), two cities (Iman and Lesozavodsk) is the Russian Far East in developed areas. Lesozavodsk is only 8 km from XX port corresponding to the port of markovo, Lu Rinuo station is one of three railway marshalling ya
22、rds in the far East, the far East-Siberian railway and a parallel road runs through the pass. By rail and road, to the North by HABA capital Khabarovsk, the Russian hinterland, radiation in the CIS and Eastern European countries; to the South through the port of Vladivostok and the nahuo card on the
23、 sea, to reach South Korea, Japan and other Pacific Rim countries and regions. Four is rich in tourism resources. XX tourist resources types, many attractions, beautiful scenery of the Sino-Russian border-river-wusuli River, a famous treasure island, known as the “Oriental Maginot line“ of the Japan
24、ese invading army Tiger underground fortress ruins, General Chi前言：在城市地铁的系统组成部分里，给机车、车站还有隧道供电是由电网输入线路、牵引变电所、降压所、馈电线路、牵引接触网和回流线路等构成的供电网络，我们统称为牵引供电系统。牵引接触网是向电力机车直接输送电能的设备，接触网系统按安装位置和接触导线的不同分为第三轨和架空网两大形式 。介绍一下牵引供电的方式，接触网的电流分有直流和交流两种，目前世界上城市轨道交通中的直流牵引网电压等级繁多，接触网系统的电压等级有600V、 630V。700V 、750V 、825V，900V、1
25、000V、1200V 等，国外接触网系统的标称电压一般在 1000V 以下，而我国的接触网系统采用的是 DC750V 和DC1500V 两种不同电压等级的供电方式。目前我国许多大城市都在考虑建设快速轨道交通，采用哪一种供电方式，必须根据城市具体条件和要求、综合分析论证。经比较 750V 和 1500V 供电方式的牵引变电所的造价，单位工程成本相近，单个直流牵引变电所的造价在 800 万元人民币左右，这样根据计算，在同一线路、同一列车牵引功率的条件下，750V 比1500V 供电方式牵引变电所数量多 13 左右，相应的工程投资也要大 13 左右。因此，选用 1500V 供电方式站与站的间距可以设
26、计的更远，经济上更划算。广州地铁 14 号线及重庆轻轨都采用 1500V 的供电方式，从运营维护的合理性、备品备件的通用性上考虑，选用 1500V 是合理有利的。本文重点介绍供电设备的安装程序及工序。牵引变电所1牵引变电所组成地铁的牵引变电所是向接触网、三轨供电的变电设备，广州、重庆的牵引变电所设备大致一样，都是 DC1500V 向接触网、三轨供电；一条线路的所有牵引变电所设备也都是一样，具有通用性，现在已一个牵引变电所为例，介绍变电所的组成。牵引变电所都设在每个地铁车站的站台旁边的封闭房间里，牵引变电所是整个车站、机车运行的核心。由主变电所的 33KV 高压开关柜分两路经环网电缆以串联的形式
27、向各车站的 33KV 高压开关柜供电，如果有一路线路故障，可由中间母联柜自动合闸供电，保证了供电的安全性。一个牵引变电所供电线路图：动力变压器 400V 低压柜 一、二、三级负荷 33KV 高柜Leaders: provincial agricultural work Conference held in XX, which is our concern and love, will greatly promote XX agricultural and rural economic development. First of all, I am representing XX municip
28、al party Committee and Government, extend a warm welcome to the attending leaders! XX has been given support and assistance to the province of agriculture, provincial agricultural Office, and expressed heartfelt thanks to all the friends! below, I XX with a brief report. A basic XX of XX municipalit
29、y located (cities, omitted). One is the superior ecological environment. XX blue, clear, green, water, air, 70% of land in the territory is covered with forests, grasslands, wetlands and waters, built 7 thousands of square kilometers of the total area of nature reserves. Within major industrial poll
30、ution sources, air quality at the national level, national levels, water quality, soil pollution, “pure land“ reputation, was heralded by the United Nations environmental officials “the most suitable place for human survival.“ Second, the enrichment of natural resources. A total area of more than 5
31、million mu of arable land (which owned 1.53 million acres), the annual grain output of more than 2 million tons and is located in the internationally recognized gold “cattle“, there should be more than 400,000 acres of grazing grassland, developing animal husbandry conditions; a total area of 4.1 mi
32、llion acres of forest land, rich in precious wood such as pine, ash, yellow pineapple, standing timber volume of more than 26 million cubic meters. Forest Xia has hundreds of species precious wildlife, more than 200 more species precious herbs, annual Super thousand tons of wild mushroom and reserve
33、s Super 100,000 tons of mountain dish; nectar plant throughout, can bee 100,000 group, is China “bee of Xiang“, and national Northeast black bee reserves and important of bee products production base; can using water 2.5 billion cubic metres, should be fishing water 460,000 acres, rich big salmon, a
34、nd “three spent five Luo“, North cold water specialty fish; found and proved reserves of mineral resources has 36 species. Third, geopolitical advantages. XX open midpoint is located in the eastern part of the province along the border, 264 km long border, with national road passenger and freight tr
35、ansport port, built on the border between China and Russia has the largest permanent boundary River Bridge, running at full capacity the annual cargo capacity of up to 2.6 million tons. Russia two (HABA and Marina), two cities (Iman and Lesozavodsk) is the Russian Far East in developed areas. Lesoza
36、vodsk is only 8 km from XX port corresponding to the port of markovo, Lu Rinuo station is one of three railway marshalling yards in the far East, the far East-Siberian railway and a parallel road runs through the pass. By rail and road, to the North by HABA capital Khabarovsk, the Russian hinterland
37、, radiation in the CIS and Eastern European countries; to the South through the port of Vladivostok and the nahuo card on the sea, to reach South Korea, Japan and other Pacific Rim countries and regions. Four is rich in tourism resources. XX tourist resources types, many attractions, beautiful scene
38、ry of the Sino-Russian border-river-wusuli River, a famous treasure island, known as the “Oriental Maginot line“ of the Japanese invading army Tiger underground fortress ruins, General Chi3整流变压器 整流柜、负极柜 1500V 直流柜 电动隔离开关 接触网广州地铁采用的是 33KV 高压供电，重庆采用的是 35KV 高压供电，但是向机车供电的都是 DC1500V 制式。图十五 左边为负极柜、整流柜 右边为
39、DC1500 直流小车柜图一 整流柜、馈线柜2变所电设备安装程序变电所设备安装施工可分为四个阶段：施工准备阶段、施工阶段、调试阶段、竣工验收阶段施工准备阶段图纸会审拿到图纸后，先熟悉和审查，包括领会图纸设计意图，掌握设计内容和技术条件，会审后形成纪要，由设计单位、建设单位、施工单位三方签字，作为施工图的补充技术文件。核对土建与安装图纸有无错误，明确各专业之间的配合。由项目经理组织总工编制电力线路设备安装方施工组织设计编制施工进度计划技术交底设计单位给施工单位的交底，施工单位的各级技术交底，特别是技术员给施工班组或劳务队的技术交底，要让作业队各成员明确所承担施工任务的特点、施工程序、技术质量要求
40、、施工工艺、施工的要点和注意事项、安全措施等，使施工人员做到心中有数，才利于有计划、有组织地完成任务。5编制施工预算。施工阶段首先注意土建预留的孔洞，交接时测量孔洞尺寸大小，距离是否符合图纸要求。预埋基础槽钢后要求装修单位打地坪，强度达到 75%，根据车站现场，采用不同的方式运输设备，进所开箱，施工单位、监理、业主、厂家现场验收设备，Leaders: provincial agricultural work Conference held in XX, which is our concern and love, will greatly promote XX agricultural and
41、 rural economic development. First of all, I am representing XX municipal party Committee and Government, extend a warm welcome to the attending leaders! XX has been given support and assistance to the province of agriculture, provincial agricultural Office, and expressed heartfelt thanks to all the
42、 friends! below, I XX with a brief report. A basic XX of XX municipality located (cities, omitted). One is the superior ecological environment. XX blue, clear, green, water, air, 70% of land in the territory is covered with forests, grasslands, wetlands and waters, built 7 thousands of square kilome
43、ters of the total area of nature reserves. Within major industrial pollution sources, air quality at the national level, national levels, water quality, soil pollution, “pure land“ reputation, was heralded by the United Nations environmental officials “the most suitable place for human survival.“ Se
44、cond, the enrichment of natural resources. A total area of more than 5 million mu of arable land (which owned 1.53 million acres), the annual grain output of more than 2 million tons and is located in the internationally recognized gold “cattle“, there should be more than 400,000 acres of grazing gr
45、assland, developing animal husbandry conditions; a total area of 4.1 million acres of forest land, rich in precious wood such as pine, ash, yellow pineapple, standing timber volume of more than 26 million cubic meters. Forest Xia has hundreds of species precious wildlife, more than 200 more species
46、precious herbs, annual Super thousand tons of wild mushroom and reserves Super 100,000 tons of mountain dish; nectar plant throughout, can bee 100,000 group, is China “bee of Xiang“, and national Northeast black bee reserves and important of bee products production base; can using water 2.5 billion
47、cubic metres, should be fishing water 460,000 acres, rich big salmon, and “three spent five Luo“, North cold water specialty fish; found and proved reserves of mineral resources has 36 species. Third, geopolitical advantages. XX open midpoint is located in the eastern part of the province along the
48、border, 264 km long border, with national road passenger and freight transport port, built on the border between China and Russia has the largest permanent boundary River Bridge, running at full capacity the annual cargo capacity of up to 2.6 million tons. Russia two (HABA and Marina), two cities (I
49、man and Lesozavodsk) is the Russian Far East in developed areas. Lesozavodsk is only 8 km from XX port corresponding to the port of markovo, Lu Rinuo station is one of three railway marshalling yards in the far East, the far East-Siberian railway and a parallel road runs through the pass. By rail and road, to the North by HABA capital Khabarovsk, the Russian hinterland, radiation in the CIS and Eastern European countries; to the South through the port of Vladivostok and the nahuo card on the sea, to reach South Korea, Japan and other Pacific Rim
