1、精選優(yōu)質(zhì)文檔-傾情為你奉上5.2.4 需要系數(shù)法確定計(jì)算負(fù)荷（1）用電設(shè)備組的計(jì)算負(fù)荷及計(jì)算電流：有功功率 kW（5-2-5）無(wú)功功率, kvar（5-2-6）視在功率 kVA（5-2-7）計(jì)算電流, A （5-2-8）（2）配電干線(xiàn)或車(chē)間變電所的計(jì)算負(fù)荷：有功功率 kW（5-2-9）無(wú)功功率, kvar（5-2-10）視在功率 kVA（5-2-11）以上式中用電設(shè)備組的設(shè)備功率，kW；需要系數(shù)；見(jiàn)表5-2-1、表5-2-2及表5-2-3；用電設(shè)備功率因數(shù)角的正切值，見(jiàn)表5-2-1、表5-2-3、表5-2-4及表5-2-5；、有功功率、無(wú)功功率同時(shí)系數(shù)，分別取0.80.9和0.930.97；用

2、電設(shè)備額定電壓（線(xiàn)電壓），kV。表5-2-1 用電設(shè)備的、及用電設(shè)備組名稱(chēng)單獨(dú)傳動(dòng)的金屬加工機(jī)床小批生產(chǎn)的金屬冷加工機(jī)床0.120.160.501.73大批生產(chǎn)的金屬冷加工機(jī)床0.170.200.501.73小批生產(chǎn)的金屬熱加工機(jī)床0.200.250.550.601.511.33大批生產(chǎn)的金屬熱加工機(jī)床0.250.280.651.17鍛錘、壓床、剪床及其他鍛工機(jī)械00.250.601.33木工機(jī)械0.200.300.500.601.731.33液壓機(jī)0.300.601.33生產(chǎn)用通風(fēng)機(jī)0.750.850.800.850.750.62衛(wèi)生用通風(fēng)機(jī)0.650.700.800.75泵、活塞型壓縮機(jī)、

3、電動(dòng)發(fā)電機(jī)組0.750.850.800.75球磨機(jī)、破碎機(jī)、篩選機(jī)、攪攔機(jī)等0.750.850.800.850.750.62電阻爐（帶調(diào)壓器或變壓器）非自動(dòng)裝料0.600.700.950.980.330.20自動(dòng)裝料0.700.800.950.980.330.20干燥箱、加熱器等0.400.601.000工頻感應(yīng)電爐（不帶無(wú)功補(bǔ)償裝置）0.800.352.68高頻感應(yīng)電爐（不帶無(wú)功補(bǔ)償裝置）0.800.601.33焊接和加熱用高頻加熱設(shè)備0.500.650.701.02熔煉用高頻加熱設(shè)備0.800.850.800.850.750.62表面淬火電爐（帶無(wú)功補(bǔ)償裝置）電動(dòng)發(fā)電機(jī)0.650.701.

4、02真空管振蕩器0.800.850.62中頻電爐（中頻機(jī)組）0.650.750.800.75氫氣爐（帶調(diào)壓器或變壓器）0.400.500.850.900.620.48真空爐（帶調(diào)壓器或變壓器）0.550.650.850.900.620.48電弧煉鋼爐變壓器0.900.850.62電弧煉鋼爐的輔助設(shè)備0.150.501.73點(diǎn)焊機(jī)、縫焊機(jī)0.35, 0.200.601.33對(duì)焊機(jī)0.350.701.02自動(dòng)弧焊變壓器0.500.501.73單頭手動(dòng)弧焊變壓器0.350.352.68多頭手動(dòng)弧焊變壓器0.400.352.68單頭直流弧焊機(jī)0.350.601.33多頭直流弧焊機(jī)0.700.701.0

5、2金屬、機(jī)修、裝配車(chē)間、鍋爐房用起重機(jī)（=25%）0.100.150.51.73鑄造車(chē)間起重機(jī)（=25%）0.150.300.51.73聯(lián)鎖的連續(xù)運(yùn)輸機(jī)械0.650.750.88非聯(lián)鎖的連續(xù)運(yùn)輸機(jī)械0.500.600.750.88一般工業(yè)用硅整流裝置0.500.701.02電鍍用硅整流裝置0.500.750.88電解用硅整流裝置0.700.800.75紅外線(xiàn)干燥設(shè)備0.850.901.000.00電火花加裝置0.500.601.33超聲波裝置0.700.701.02X光設(shè)備0.300.551.52電子計(jì)算機(jī)主機(jī)0.600.700.800.75電子計(jì)算機(jī)外部設(shè)備0.400.500.501.73試

6、驗(yàn)設(shè)備（電熱為主）0.200.400.800.75試驗(yàn)設(shè)備（儀表為主）0.150.200.701.02磁粉探傷機(jī)0.200.402.29鐵屑加工機(jī)械0.400.750.88排氣臺(tái)0.500.600.900.48老煉臺(tái)0.600.700.701.02陶瓷隧道窯0.800.900.950.33拉單晶爐0.700.750.900.48賦能腐蝕設(shè)備0.600.930.40真空浸漬設(shè)備0.700.950.33點(diǎn)焊機(jī)的需要系數(shù)0.2僅用于電子行業(yè)。表5-2-2 照明用電設(shè)備需要系數(shù)建筑類(lèi)別KX建筑類(lèi)別KX生產(chǎn)廠(chǎng)房（有天然采光）0.800.90宿舍區(qū)0.600.80生產(chǎn)廠(chǎng)房（無(wú)天然采光）0.901.00醫(yī)院

7、0.50辦公樓0.700.80食堂0.900.95設(shè)計(jì)室0.900.95商店0.90科研樓0.800.90學(xué)校0.600.70倉(cāng)庫(kù)0.500.70展覽館0.700.80鍋爐房0.90旅館0.600.70表5-2-3 旅游旅館用電設(shè)備的、及用電設(shè)備組名稱(chēng)KX用電設(shè)備組名稱(chēng)KX照明客房0.350.450.950.33電梯0.180.220.501.73其他場(chǎng)所0.500.70洗衣機(jī)0.300.350.701.02冷水機(jī)組、泵0.650.750.800.75廚房設(shè)備0.350.450.750.88通風(fēng)機(jī)0.600.700.800.75窗式空調(diào)器0.350.450.800.75表5-2-4 照明用電設(shè)

8、備的及光源類(lèi)別光源類(lèi)別白熾燈、鹵鎢燈1.000.00高壓鈉燈0.451.98熒光燈（無(wú)補(bǔ)償）0.551.52金屬鹵化物燈0.400.612.291.29熒光燈（有補(bǔ)償）0.900.49鏑燈0.521.60高壓汞燈0.450.651.981.16氙燈0.900.48表5-2-5 與、1.0000.0000.0000.8700.5670.4930.6501.1690.7600.9900.1420.1410.8600.5930.5100.6001.3330.8000.9800.2030.1990.8500.6200.5270.5501.5180.8350.9700.2510.2430.8400.64

9、60.5430.5001.7320.8660.9600.2920.2800.8300.6720.5580.4501.9850.8930.9500.3290.3120.8200.6980.5720.4002.2910.9160.9400.3630.3410.8100.7240.5860.3502.6760.9370.9300.3950.3670.8000.7500.6000.3003.1800.9540.9200.4260.3920.7800.8020.6260.2503.8730.9680.9100.4560.4150.7500.8820.6610.2004.8990.9800.9000.4840.4360.7200.9640.6940.1506.5910.9890.8900.5120.4560.7001.0200.7140.1009.9500.