通过对放纸辊电机运行特点的分析,说明在选择电机额定功率时,关键是计算电机的最大负载电流。
Based on the analysis of operation characteristics of the unwind motor, we proved that the calculation of the motor's maximum current is the key for selecting the motor rated power.
另外,本文还就异步电机在非额定状态下运行时,输出功率的计算公式及如何实现效率优化等问题进行了讨论。
Moreover, this text discuss the calculation formula of the output power when motor is working at unrated circulation and how to realize excellent efficiency.
永磁体分散性对空载电流、空载功率因数、负载功率因数和过载能力影响较大,而对额定运行时的效率、电流影响不大。
In addition, the dispersibility has great effects on the noload current and power factor while the effect on rated efficiency and rated current is little.
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