Building industry opens up new world of entrepreneurial struggle to build a three provinces of regional central cities--in the Communist x counties the six plenary session members and comrades: today, I was commissioned by the County party Committee Standing Committee, reports to the General Assembly. Consideration of all members and alternates, and comrades attending advice. A, and this year yilai of work recalled this year yilai, in municipal of right led Xia, County solidarity led County people, to science development views for guide, to good activities for mainline, according to \nizations three more\opment thought, concentrated poly force, work hard, political, and economic, and culture, and social and party of construction are made has new progress, County rendering out wind fresh are, and career prosperity, and social settled, and people mind into of good situation. (A) facilitating the construction of the project. Firmly establish the \oject is economic, grasping development project is to hold\o extraordinary efforts to promoting the construction of key projects. Plot 108 key projects for the year, with a total investment of 29.3 billion yuan, iron plate, Josh stone cement waste heat power generation and 13 projects completed, worship of 1.2 million tons of pellets, Hua Yu 80,000 sets of grandparent chicken farming, 47 projects under construction, completed investment of 3.95 billion yuan, annual plan of 69.3%. The first half of the County's gross domestic product is expected to reached 8.5 billion yuan, and total revenue of 943 million Yuan. (B) structural adjustment achieved remarkable results. Actively transforming the pattern of economic development, industrial ecology, and agricultural modernization and industrialization of services. High x-County • Tin iron circular economy demonstration area, and further expand economic development zone Jing Dian recycle economy ecology industry Park, Park, circular economy and rapid economic development. Focus more on the dialectical relationship between development and environmental protection, energy saving and emission reduction projects play an important role. Vigorously developing agriculture, ecological agriculture, agriculture, modern agricultural clearing along the River Promenade begins to take shape. Key tourism projects is going well, WA Palace area was named \n most influential cultural relics in Hebei province landscape\w services, and services with new developments. (C) urban-rural integration process. Promoting \-year difference\n, battle of two large demolition completed 32 days of 530,000 square meters, exceeded the annual Task 7 months in advance. General big building jiangjun road, bridge and highway bridges, the green heart of the city and other urban construction projects, and focus on building new countryside and new housing model villages, urban and rural areas improve. Highway opened to traffic, Liu Zhang, Qing LAN high-speed x-County section completed by the end of August. Urban and rural吉林建筑大

学城建学院电气信息工程系课程设计

第二章 负荷计算

2.1动力支路负荷计算

每个组内的负荷计算可以采用通用计算公式进行，动力支路的负荷计算采用下式进行：

Pc?K?p??Kd?Pe

Qc?K?q??KdPetan?

Sc?Pc2?Qc2

Ic?Sc/(3?UN)

式中 Pc——支路上有功计算负荷，kw；

Qc——支路上无功计算负荷，kvar；

Sc——支路上视在计算负荷，kVA；

K?p、K?q——分别为支路上有功同时系数，无功同时系数；

Ic——支路上计算电流；

UN——支路的额定电压。

2.2各车间计算负荷和无功补偿

1.纺练车间 单台机械负荷计算 a.纺丝机

已知：P??150kW，Kd?0.80，tan??0.78。 故：P?P?Kd?150?0.80?120(kw) Q?Ptan??120?0.78?93.6(kvar) b.筒丝机

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Building industry opens up new world of entrepreneurial struggle to build a three provinces of regional central cities--in the Communist x counties the six plenary session members and comrades: today, I was commissioned by the County party Committee Standing Committee, reports to the General Assembly. Consideration of all members and alternates, and comrades attending advice. A, and this year yilai of work recalled this year yilai, in municipal of right led Xia, County solidarity led County people, to science development views for guide, to good activities for mainline, according to \nizations three more\opment thought, concentrated poly force, work hard, political, and economic, and culture, and social and party of construction are made has new progress, County rendering out wind fresh are, and career prosperity, and social settled, and people mind into of good situation. (A) facilitating the construction of the project. Firmly establish the \oject is economic, grasping development project is to hold\o extraordinary efforts to promoting the construction of key projects. Plot 108 key projects for the year, with a total investment of 29.3 billion yuan, iron plate, Josh stone cement waste heat power generation and 13 projects completed, worship of 1.2 million tons of pellets, Hua Yu 80,000 sets of grandparent chicken farming, 47 projects under construction, completed investment of 3.95 billion yuan, annual plan of 69.3%. The first half of the County's gross domestic product is expected to reached 8.5 billion yuan, and total revenue of 943 million Yuan. (B) structural adjustment achieved remarkable results. Actively transforming the pattern of economic development, industrial ecology, and agricultural modernization and industrialization of services. High x-County • Tin iron circular economy demonstration area, and further expand economic development zone Jing Dian recycle economy ecology industry Park, Park, circular economy and rapid economic development. Focus more on the dialectical relationship between development and environmental protection, energy saving and emission reduction projects play an important role. Vigorously developing agriculture, ecological agriculture, agriculture, modern agricultural clearing along the River Promenade begins to take shape. Key tourism projects is going well, WA Palace area was named \n most influential cultural relics in Hebei province landscape\w services, and services with new developments. (C) urban-rural integration process. Promoting \-year difference\n, battle of two large demolition completed 32 days of 530,000 square meters, exceeded the annual Task 7 months in advance. General big building jiangjun road, bridge and highway bridges, the green heart of the city and other urban construction projects, and focus on building new countryside and new housing model villages, urban and rural areas improve. Highway opened to traffic, Liu Zhang, Qing LAN high-speed x-County section completed by the end of August. Urban and rural吉林建筑工

程学院城建学院电气信息工程系课程设计 已知：P??40kW，Kd?0.75，tan??0.75。

6 第1页 共31页 Building industry opens up new world of entrepreneurial struggle to build a three provinces of regional central cities--in the Communist x counties the six plenary session members and comrades: today, I was commissioned by the County party Committee Standing Committee, reports to the General Assembly. Consideration of all members and alternates, and comrades attending advice. A, and this year yilai of work recalled this year yilai, in municipal of right led Xia, County solidarity led County people, to science development views for guide, to good activities for mainline, according to \nizations three more\opment thought, concentrated poly force, work hard, political, and economic, and culture, and social and party of construction are made has new progress, County rendering out wind fresh are, and career prosperity, and social settled, and people mind into of good situation. (A) facilitating the construction of the project. Firmly establish the \oject is economic, grasping development project is to hold\o extraordinary efforts to promoting the construction of key projects. Plot 108 key projects for the year, with a total investment of 29.3 billion yuan, iron plate, Josh stone cement waste heat power generation and 13 projects completed, worship of 1.2 million tons of pellets, Hua Yu 80,000 sets of grandparent chicken farming, 47 projects under construction, completed investment of 3.95 billion yuan, annual plan of 69.3%. The first half of the County's gross domestic product is expected to reached 8.5 billion yuan, and total revenue of 943 million Yuan. (B) structural adjustment achieved remarkable results. Actively transforming the pattern of economic development, industrial ecology, and agricultural modernization and industrialization of services. High x-County • Tin iron circular economy demonstration area, and further expand economic development zone Jing Dian recycle economy ecology industry Park, Park, circular economy and rapid economic development. Focus more on the dialectical relationship between development and environmental protection, energy saving and emission reduction projects play an important role. Vigorously developing agriculture, ecological agriculture, agriculture, modern agricultural clearing along the River Promenade begins to take shape. Key tourism projects is going well, WA Palace area was named \n most influential cultural relics in Hebei province landscape\w services, and services with new developments. (C) urban-rural integration process. Promoting \-year difference\n, battle of two large demolition completed 32 days of 530,000 square meters, exceeded the annual Task 7 months in advance. General big building jiangjun road, bridge and highway bridges, the green heart of the city and other urban construction projects, and focus on building new countryside and new housing model villages, urban and rural areas improve. Highway opened to traffic, Liu Zhang, Qing LAN high-speed x-County section completed by the end of August. Urban and rural吉林建筑大

学城建学院电气信息工程系课程设计 故：P?P?Kd?40?0.75?30(kW)

Q?Ptan??30?0.75?22.5(kvar)

c.烘干机

已知：P??80kW，Kd?0.75，tan??1.02。 故：P?P?Kd?80?0.75?60(kW)

Q?Ptan??60?1.02?61.2(kvar)

d.脱水机

已知：P??15kW，Kd?0.60，tan??0.80。 故：P?P?Kd?15?0.60?9(kW)

Q?Ptan??9?0.80?7.2(kvar )e.通风机

已知：P??220kW，Kd?0.70，tan??0.75。 故：P?P?Kd?220?0.70?154(kW) Q?Ptan??154?0.75?115.5(kvar )

f.淋洗机

已知：P??5kW，Kd?0.75，tan??0.78。 故：P?P?Kd?5?0.75?3.75(kW)

Q?Ptan??3.75?0.78?2.93(kvar )g.变频机

已知：P??800kW，Kd?0.80，tan??0.70。 故：P?P?Kd?800?0.80?640(kW)

Q?Ptan??640?0.70?448(kvar)

h.传送机

已知：P??38kW，Kd?0.80，tan??0.70。

7 第2页 共31页

Building industry opens up new world of entrepreneurial struggle to build a three provinces of regional central cities--in the Communist x counties the six plenary session members and comrades: today, I was commissioned by the County party Committee Standing Committee, reports to the General Assembly. Consideration of all members and alternates, and comrades attending advice. A, and this year yilai of work recalled this year yilai, in municipal of right led Xia, County solidarity led County people, to science development views for guide, to good activities for mainline, according to \nizations three more\opment thought, concentrated poly force, work hard, political, and economic, and culture, and social and party of construction are made has new progress, County rendering out wind fresh are, and career prosperity, and social settled, and people mind into of good situation. (A) facilitating the construction of the project. Firmly establish the \oject is economic, grasping development project is to hold\o extraordinary efforts to promoting the construction of key projects. Plot 108 key projects for the year, with a total investment of 29.3 billion yuan, iron plate, Josh stone cement waste heat power generation and 13 projects completed, worship of 1.2 million tons of pellets, Hua Yu 80,000 sets of grandparent chicken farming, 47 projects under construction, completed investment of 3.95 billion yuan, annual plan of 69.3%. The first half of the County's gross domestic product is expected to reached 8.5 billion yuan, and total revenue of 943 million Yuan. (B) structural adjustment achieved remarkable results. Actively transforming the pattern of economic development, industrial ecology, and agricultural modernization and industrialization of services. High x-County • Tin iron circular economy demonstration area, and further expand economic development zone Jing Dian recycle economy ecology industry Park, Park, circular economy and rapid economic development. Focus more on the dialectical relationship between development and environmental protection, energy saving and emission reduction projects play an important role. Vigorously developing agriculture, ecological agriculture, agriculture, modern agricultural clearing along the River Promenade begins to take shape. Key tourism projects is going well, WA Palace area was named \n most influential cultural relics in Hebei province landscape\w services, and services with new developments. (C) urban-rural integration process. Promoting \-year difference\n, battle of two large demolition completed 32 days of 530,000 square meters, exceeded the annual Task 7 months in advance. General big building jiangjun road, bridge and highway bridges, the green heart of the city and other urban construction projects, and focus on building new countryside and new housing model villages, urban and rural areas improve. Highway opened to traffic, Liu Zhang, Qing LAN high-speed x-County section completed by the end of August. Urban and rural吉林建筑工

程学院城建学院电气信息工程系课程设计 故：P?P?Kd?38?0.80?30.4(kW)

Q?Ptan??30.4?0.70?21.3(kvar)

纺练车间单台机械负荷统计见表2.1

表2-1纺练车间单台机械负荷统计

序号 车间设备名称 安装容量/kW 纺炼车间 纺丝机 筒绞机 烘干机 脱水机 通风机 淋洗机 变频机 传送机 小计 150 40 80 15 220 5 800 38 1348 Kd 0.8 0.75 0.75 0.6 0.7 0.75 0.8 0.8 5.95 tanφ 0.78 0.75 1.02 0.8 0.75 0.78 0.7 0.7 6.28 计算负荷 P/kW Q/kvar S/kVA 120 93.6 152.2 30 22.5 37.5 60 61.2 85.7 9 7.2 11.5 154 115.5 192.5 3.75 2.93 4.8 640 448 781.2 30.4 21.3 37.1 1047.2 772.2 1302.5

1

2.车间计算负荷统计(计及同时系数） 取同时系数：K?P?0.9，K?Q?0.95

P?K?p?P?0.9?1047.2?942.5(kW) Q?K?q?P?0.95?772.2?733.6(kvar) S?P2?Q2?942.52?733.62?1194.4(kVA)

3.其余各车间负荷计算 a.原液车间

已知：P??1040kW，Kd?0.75，tan??0.65。 故：P?P?Kd?1040?0.75?780(kW)

Q?Ptan??780?0.65?507(kvar) S?P2?Q2?7802?5072?930.3(kVA)

b.酸站照明

已知：P??260kW，Kd?0.65，tan??0.65。

8 第1页 共31页