【正文】 Pjs = = kWQjs = Pjs tgφ= = kvar(20)、蛙式夯土機(jī)Kx = Cosφ = tgφ = Pjs = = kWQjs = Pjs tgφ= = kvar(21)、卷?yè)P(yáng)機(jī)Kx = Cosφ = tgφ = Pjs = 3 = kWQjs = Pjs tgφ= = kvar(22)、自落式混凝土攪拌機(jī)Kx = Cosφ = tgφ = Pjs = = kWQjs = Pjs tgφ= = kvar(23)、插入式振動(dòng)器Kx = Cosφ = tgφ = Pjs = = kWQjs = Pjs tgφ= = kvar(24)、平板式振動(dòng)器Kx = Cosφ = tgφ = Pjs = = kWQjs = Pjs tgφ= = kvar(25)、灰漿攪拌機(jī)Kx = Cosφ = tgφ = Pjs = 3 = kWQjs = Pjs tgφ= = kvar(26)、交流電焊機(jī)Kx = Cosφ = tgφ = 將Jc =50%統(tǒng)一換算到Jc1 =100%的額定容量Pn = Sn Cosφ = =Pe = n(Jc/Jc1)1/2Pn = 1()1/2 = kWPjs = KxPe = = Qjs = Pjs tgφ= = kvar(27)、直流電焊機(jī)Kx = Cosφ = tgφ = 將Jc =50%統(tǒng)一換算到Jc1 =100%的額定容量Pn = 14kWPe = n(Jc/Jc1)1/2Pn = 1()1/214 = kWPjs = KxPe = = Qjs = Pjs tgφ= = kvar(28)、木工圓鋸Kx = Cosφ = tgφ = Pjs = = kWQjs = Pjs tgφ= = kvar(29)、木工電刨Kx = Cosφ = tgφ = Pjs = = kWQjs = Pjs tgφ= = kvar(30)、碘鎢燈Kx = Cosφ = tgφ = Pjs = 11 = kWQjs = Pjs tgφ= = kvar(31)、熒光燈Kx = Cosφ = tgφ = Pjs = = kWQjs = Pjs tgφ= = kvar(32)、熒光燈Kx = Cosφ = tgφ = Pjs = = kWQjs = Pjs tgφ= = kvar(33)、熒光燈Kx = Cosφ = tgφ = Pjs = = kWQjs = Pjs tgφ= = kvar(34)、熒光燈Kx = Cosφ = tgφ = Pjs = = kWQjs = Pjs tgφ= = kvar(35)、白熾燈Kx = Cosφ = tgφ = Pjs = 11 = kWQjs = Pjs tgφ= = kvar(36)、白熾燈Kx = Cosφ = tgφ = Pjs = 11 = kWQjs = Pjs tgφ= = kvar(37)、白熾燈Kx = Cosφ = tgφ = Pjs = 11 = kWQjs = Pjs tgφ= = kvar(38)、蛙式夯土機(jī)Kx = Cosφ = tgφ = Pjs = = kWQjs = Pjs tgφ= = kvar(39)、卷?yè)P(yáng)機(jī)Kx = Cosφ = tgφ = Pjs = 3 = kWQjs = Pjs tgφ= = kvar(40)、自落式混凝土攪拌機(jī)Kx = Cosφ = tgφ = Pjs = = kWQjs = Pjs tgφ= = kvar(41)、插入式振動(dòng)器Kx = Cosφ = tgφ = Pjs = = kWQjs = Pjs tgφ= = kvar(42)、平板式振動(dòng)器Kx = Cosφ = tgφ = Pjs = = kWQjs = Pjs tgφ= = kvar(43)、交流電焊機(jī)Kx = Cosφ = tgφ = 將Jc =50%統(tǒng)一換算到Jc1 =100%的額定容量Pn = Sn Cosφ = =Pe = n(Jc/Jc1)1/2Pn = 1()1/2 = kWPjs = KxPe = = Qjs = Pjs tgφ= = kvar(44)、直流電焊機(jī)Kx = Cosφ = tgφ = 將Jc =50%統(tǒng)一換算到Jc1 =100%的額定容量Pn = 14kWPe = n(Jc/Jc1)1/2Pn = 1()1/214 = kWPjs = KxPe = = Qjs = Pjs tgφ= = kvar(45)、灰漿攪拌機(jī)Kx = Cosφ = tgφ = Pjs = 3 = kWQjs = Pjs tgφ= = kvar(46)、木工圓鋸Kx = Cosφ = tgφ = Pjs = = kWQjs = Pjs tgφ= = kvar(47)、真空吸水泵Kx = Cosφ = tgφ = Pjs = 4 = 3 kWQjs = Pjs tgφ=3 = kvar(48)、白熾燈Kx = Cosφ = tgφ = Pjs = 11 = kWQjs = Pjs tgφ= = kvar(49)、白熾燈Kx = Cosφ = tgφ = Pjs = 11 = kWQjs = Pjs tgφ= = kvar(50)、白熾燈Kx = Cosφ = tgφ = Pjs = 11 = kWQjs = Pjs tgφ= = kvar(51)、熒光燈Kx = Cosφ = tgφ = Pjs = = kWQjs = Pjs tgφ= = kvar(52)、熒光燈Kx = Cosφ = tgφ = Pjs = = kWQjs = Pjs tgφ= = kvar(53)、熒光燈Kx = Cosφ = tgφ = Pjs = = kWQjs = Pjs tgφ= = kvar(54)、熒光燈Kx = Cosφ = tgφ = Pjs = = kWQjs = Pjs tgφ= = kvar(55)、白熾燈Kx = Cosφ = tgφ = Pjs = 11 = kWQjs = Pjs tgφ= = kvar(56)、蛙式夯土機(jī)Kx = Cosφ = tgφ = Pjs = = kWQjs = Pjs tgφ= = kvar(57)、卷?yè)P(yáng)機(jī)Kx = Cosφ = tgφ = Pjs = = kWQjs = Pjs tgφ= = kvar(58)、自落式混凝土攪拌機(jī)Kx = Cosφ = tgφ = Pjs = = kWQjs = Pjs tgφ= = kvar(59)、插入式振動(dòng)器Kx = Cosφ = tgφ = Pjs = = kWQjs = Pjs tgφ= = kvar(60)、平板式振動(dòng)器Kx = Cosφ = tgφ = Pjs = = kWQjs = Pjs tgφ= = kvar(61)、灰漿攪拌機(jī)Kx = Cosφ = tgφ = Pjs = 3 = kWQjs = Pjs tgφ= = kvar(62)、交流電焊機(jī)Kx = Cosφ = tgφ = 將Jc =50%統(tǒng)一換算到Jc1 =100%的額定容量Pn = Sn Cosφ = =Pe = n(Jc/Jc1)1/2Pn = 1()1/2 = kWPjs = KxPe = = Qjs = Pjs tgφ= = kvar(63)、直流電焊機(jī)Kx = Cosφ = tgφ = 將Jc =50%統(tǒng)一換算到Jc1 =100%的額定容量Pn = 10kWPe = n(Jc/Jc1)1/2Pn = 1()1/210 = kWPjs = KxPe = = Qjs = Pjs tgφ= = kvar(64)、木工電刨Kx = Cosφ = tgφ = Pjs = = kWQjs = Pjs tgφ= = kvar(65)、木工圓鋸Kx = Cosφ = tgφ = Pjs = 3 = kWQjs = Pjs tgφ= = kvar(66)、碘鎢燈Kx = Cosφ = tgφ = Pjs = 11 = kWQjs = Pjs tgφ= = kvar(67)、碘鎢燈Kx = Cosφ = tgφ = Pjs = 11 = kWQjs = Pjs tgφ= = kvar(68)、熒光燈Kx = Cosφ = tgφ = Pjs = = kWQjs = Pjs tgφ= = kvar(69)、熒光燈Kx = Cosφ = tgφ = Pjs = = kWQjs = Pjs tgφ= = kvar(70)、熒光燈Kx = Cosφ = tgφ = Pjs = = kWQjs = Pjs tgφ= = kvar(71)、熒光燈Kx = Cosφ = tgφ = Pjs = = kWQjs = Pjs tgφ= = kvar(72)、白熾燈Kx = Cosφ = tgφ = Pjs = 11 = kWQjs = Pjs tgφ= = kvar(73)、白熾燈Kx = Cosφ = tgφ = Pjs = 11 = kWQjs = Pjs tgφ= = kvar(74)總的計(jì)算負(fù)荷計(jì)算，總箱同期系數(shù)取 Kx = 總的有功功率Pjs = KxΣPjs = (++++++++++3++++++++++++++++++++++++++++++++++++3++++++++++++++++++++++++++) = kW總的無(wú)功功率Qjs = KxΣQjs =(++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++) = kvar總的視在功率Sjs = ( Pjs2+Qjs2 )1/2 = (+)1/2 = kVA總的計(jì)算電流計(jì)算Ijs = Sjs/(Ue) = () = A1號(hào)干線線路上導(dǎo)線截面及分配箱、開關(guān)箱內(nèi)電氣設(shè)備選擇:在選擇前應(yīng)對(duì)照平面圖和系統(tǒng)圖先由用電設(shè)備至開關(guān)箱計(jì)算，再由開關(guān)箱至分配箱計(jì)算，選擇導(dǎo)線及開關(guān)設(shè)備。(1)、蛙式夯土機(jī)開關(guān)箱至蛙式夯土機(jī)導(dǎo)線截面及開關(guān)箱內(nèi)電氣設(shè)備選擇（開關(guān)箱以下用電器啟動(dòng)后需要系數(shù)取1）:i)計(jì)算電流Kx = 1 Cosφ = tgφ = Ijs = Kx Pe /(Ue Cosφ) = 1() = ii)選擇導(dǎo)線選擇XV410 ，空氣明敷/。iii)選擇電氣設(shè)備選擇開關(guān)箱內(nèi)隔離開關(guān)為Hk115/3，漏電保護(hù)器為 DZ15L100/30。室外架空銅芯導(dǎo)線按機(jī)械強(qiáng)度的最小截面為10mm2，滿足要求。(3)、自落式混凝土攪拌機(jī)開關(guān)箱至自落式混凝土攪拌機(jī)導(dǎo)線截面及開關(guān)箱內(nèi)電氣設(shè)備選擇（開關(guān)箱以下用電器啟動(dòng)后需要系數(shù)取1）:i)計(jì)算電流Kx = 1 Cosφ = tgφ = Ijs = Kx Pe /(Ue Cosφ) = 1() = ii)選擇導(dǎo)線選擇XV410 ，空氣明敷/。iii)選擇電氣設(shè)備選擇開關(guān)箱內(nèi)隔離開關(guān)為DZ520/3 ，其脫扣器整定電流值為Ir = 16A，漏電保護(hù)器為 DZ15L100/30。室外架空銅芯導(dǎo)線按機(jī)械強(qiáng)度的最小截面為10mm2，滿足要求。(5)、平板式振動(dòng)器開關(guān)箱至平板式振動(dòng)器導(dǎo)線截面及開關(guān)箱內(nèi)電氣設(shè)備選擇（開關(guān)箱以下用電器啟動(dòng)后需要系數(shù)取1）:i)計(jì)算電流Kx = 1 Cosφ = tgφ = Ijs = Kx Pe /(Ue Cosφ) = 1() = ii)選擇導(dǎo)線選擇XV410 ，空氣明敷/。iii)選擇電氣設(shè)備選擇開關(guān)箱內(nèi)隔離開關(guān)為DZ520/3 ，其脫扣器整定電流值為Ir = 16A，漏電保護(hù)器為 DZ15L100/30。室外架空銅芯導(dǎo)線按機(jī)械強(qiáng)度的最小截面為10mm2，滿足要求。(7)、交流電焊機(jī)開關(guān)箱至交流電焊機(jī)導(dǎo)線截面及開關(guān)箱內(nèi)電氣設(shè)備選擇（開關(guān)箱以下