塔式起重機(jī)Kx = 0.85 Cosφ = 0.6 tgφ = 1.33將Jc =40%統(tǒng)一換算到Jc1 =25%的額定容量Pn = 31.7kWPe = n(Jc/Jc1)1/2Pn = 1(0.4/0.25)1/231.7 = 40.1 kWPjs = KxPe =0.8540.1 = 34.08kWQjs = Pjs tgφ=34.081.33 = 45.44 kvar(2)、建筑施工外用電梯Kx = 0.85 Cosφ = 0.6 tgφ = 1.33Pjs = 0.8511 = 9.35 kWQjs = Pjs tgφ=9.351.33 = 12.47 kvar塔吊銘牌暫載率為0.4,實(shí)際暫載率為0.25,換算后塔吊實(shí)際功率增大,超過(guò)原來(lái)的實(shí)際功率,系數(shù)是否有問(wèn)題,換算后的實(shí)際功率應(yīng)該比原有的小吧?施工外用電梯在軟件里不需要乘系數(shù)的?如果要查找這些系數(shù)豆豆網(wǎng)里面能否查到??
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