论文部分内容阅读
工地用电简便估算方法,是根据建筑工地用电的普遍情况,运用推理估算出来的。特点是:简单明了,实用可靠,容易掌握。这些估算方法虽然不如公式计算精确,但仍然可以满足使用要求。一、电动机额定电流的估算I_(e_d)=2P_(e_d)(安培)式中l_(e_d)——电动机额定估算电流;P(e_d)——电动机额定功率。这个方法适用于三相鼠笼式异步电动机额定电流的估算。功率小
The simple method of estimating electricity consumption at construction sites is based on the prevailing conditions of electricity consumption at construction sites and is estimated using reasoning. Features are: simple and clear, practical and reliable, easy to grasp. Although these estimation methods are not as accurate as the formulas, they can still meet the requirements for use. First, the motor rated current estimation I_ (e_d) = 2P_ (e_d) (ampere) type l_ (e_d) - motor rated current rating; P (e_d) - motor rated power. This method is suitable for estimating the rated current of a three-phase squirrel-cage asynchronous motor. Low power