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用电设备的需要系数Kd、cosφ及tgφ表1-1用电设备组名称分类Kdcosφtgφ单独传动的金属加工机床:小批生产的金属冷加工机床0.12~0.160.501.73大批生产的金属冷加工机床0.17~0.200.501.73小批生产的金属热加工机床0.20~0.250.55~0.601.51~1.33大批生产的金属热加工机床0.25~0.280.651.17锻锤、压床、剪床及其它锻工机械0.250.601.33木工机械0.20~0.300.50~0.601.73~1.33液压机0.300.601.33生产用通风机0.75~0.850.80~0.850.75~0.62卫生用通风机0.65~0.700.800.75泵、活塞型压缩机、电动发电机组0.75~0.850.800.75球磨机、破碎机、筛选机、搅拌机等0.75~0.850.80~0.850.75~0.62电阻炉(带调压器或变压器):非自动装料0.60~0.700.95~0.980.33~0.20自动装料0.70~0.800.95~0.980.33~0.20干燥箱、加热器等0.40~0.601.000工频感应电炉(不带无功补偿装置)0.800.352.68高频感应电炉(不带无功补偿装置)0.800.601.33焊接和加热用高频加热设备0.50~0.650.701.02熔炼用高频加热设备0.80~0.850.80~0.850.75~0.62表面淬火电炉(带无功补偿装置):电动发电机0.650.701.02真空管振荡器0.800.850.62中频电炉(中频机组)0.65~0.750.800.75氢气炉(带调压器或变压器)0.40~0.500.85~0.900.62~0.48真空炉(带调压器或变压器)0.55~0.650.85~0.900.62~0.48电弧炼钢炉变压器0.900.850.62电弧炼钢炉的辅助设备0.150.501.73点焊机、缝焊机0.35,0.20①0.601.33对焊机0.350.701.02自动弧焊变压器0.500.501.73单头手动弧焊变压器0.350.352.68多头手动弧焊变压器0.400.352.68单头直流弧焊机0.350.601.33多头直流弧焊机0.700.701.02金属、机修、装配车间、锅炉房用起重机0.05~0.150.501.73铸造车间用起重机0.15~0.300.501.73联锁的连续运输机械0.650.750.88非联锁的连续运输机械0.50~0.600.750.88一般工业用硅整流装置0.500.701.02电镀用硅整流装置0.500.750.88电解用硅整流装置0.700.800.75红外线干燥设备0.85~0.901.000.00电火花加工装置0.500.601.33超声波装置0.700.701.02X光设备0.300.551.52电子计算机主机0.60~0.700.800.75电子计算机外部设备0.40~0.500.501.73试验设备(电热为主)0.20~0.400.800.75试验设备(仪表为主)0.15~0.200.701.02磁粉探伤机0.200.402.29铁屑加工机械0.400.750.88排气台0.50~0.600.900.48老炼台0.60~0.700.701.02陶瓷隧道窑0.80~0.900.950.33拉单晶炉0.70~0.750.900.48赋能腐蚀设备0.600.930.40真空浸渍设备0.700.950.33①点焊机的需要系数0.2仅用于电子行业。民用建筑用电设备的需要系数Kx和cosφ·tgφ表2.5.2-1序号用电设备分类Kxcosφtgφ1通风和采暖用电各种风机,空调器0.7~0.80.80.75恒温空调器0.6~0.70.950.33冷冻机0.85~0.90.80.75集中式电热器1.01.00分散式电热器(20kW以下)0.85~0.951.00分散式电热器(100kW以上)0.75~0.851.00小型电热设备0.3~0.50.950.332给排水用电各种水泵(15kW以下)0.75~0.80.80.75各种水泵(17kW以上)0.6~0.70.870.573起重运输用电客梯(1.5t及以下)0.35~0.50.51.73客梯(2t及以上)0.60.71.02货梯0.25~0.350.51.73输送带0.6~0.650.750.88起重机械0.1~0.20.51.734锅炉房用电0.75~0.850.850.625消防用电0.4~0.60.80.756厨房及卫生用电食品加工机械0.5~0.70.800.75电饭锅、电烤箱0.851.00电炒锅0.701.00电冰箱0.60~0.70.71.02热水器(淋浴用)0.651.00除尘器0.30.850.627机修用电修理间机械设备0.15~0.200.51.73电焊机0.350.352.68移动式电动工具0.20.51.738打包机0.200.601.33洗衣房动力0.65~0.750.501.73天窗开闭机0.10.51.739通讯及信号设备载波机0.85~0.950.80.75收讯机0.8~0.90.80.75发讯机0.7~0.80.80.75电话交换台0.75~0.850.80.75客房床头电气控制箱0.15~0.250.61.33民用建筑照明负荷需要系数Kx表2.5.2-2建筑类别Kx建筑类别Kx一般旅馆、招待所0.7~0.8一般办公楼0.7~0.8高级旅馆、招待所0.6~0.7高级办公楼0.6~0.7旅游宾馆0.35~0.45科研楼0.8~0.9电影院、文化馆0.7~0.8发展与交流中心0.6~0.7剧场0.6~0.7教学楼0.8~0.9礼堂0.5~0.7图书馆0.6~0.7体育练习馆0.7~0.8托儿所、幼儿园0.8~0.9体育馆0.65~0.75小型商业、服务业用房0.85~0.9展览厅0.5~0.7综合商业、服务楼0.75~0.85门诊楼0.6~0.7食堂、餐厅0.8~0.9一般病房楼0.65~0.75高级餐厅0.7~0.8高级病房楼0.5~0.6火车站0.75~0.78锅炉房0.9~1博物馆0.82~0.92单身宿舍楼0.6~0.7旅馆宾馆需要系数Kx和cosφ表2.5.2-3序号负荷名称需要系数Kx自然平均功率因数cosφ平均值推荐值平均值推荐值1全馆总负荷0.450.4~0.50.840.82全馆总照明0.550.5~0.60.820.83全馆总电力0.40.35~0.450.90.854冷冻机房0.650.65~0.750.870.85锅炉房0.650.65~0.750.80.756水泵房0.650.6~0.70.860.87风机0.650.6~0.70.830.88电梯0.20.18~0.22直流0.5交流0.8直流0.4交流0.89厨房0.40.35~0.450.7~0.750.710洗衣机房0.30.3~0.350.6~0.650.711窗式空调0.40.35~0.450.8~0.850.812总同时系数KΣ0.92~0.94照明用电设备的cosφ与tgφ表2.5.2-4光源类别cosφtgφ光源类别cosφtgφ白炽灯,卤钨灯1.00高压钠灯0.451.98荧光灯(无补偿)0.551.52金属卤化物灯0.4~0.612.29~1.29荧光灯(无补偿)0.90.48灯0.521.6高压水银灯(50~175W)0.45~0.51.98~1.73氙灯0.90.48高压水银灯(200~1000W)0.65~0.671.16~1.10霓虹灯0.4~0.52.29~1.73
本文标题:用电设备系数查询
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