摘要
起重机械上电动机功率的选择对起重机的安全运行至关重要。我国地域面积广大,温差和海拔相差较大,根据统计,我国各地平均温度都在25℃以下,平均温度最高不超过35℃,而绝对最高温度一般在35℃～40℃之间,只有极少数地区在40℃～45℃之间。从电动机内部绝缘材料考虑,根据电动机实际工作情况,在不同的温度下需要对电动机的额定功率进行一定的修正,起重机械才能安全稳定的运行。
It is very important to choose the motor power for the safe operation of the crane. Our country has a spa- cious area, the differences of temperature and altitude are large. According to the statistics, the average temperature is below 25 ℃, the maximum average temperature does not exceed 35 ℃, the absolutely highest temperature is be- tween 35 ℃ and 40℃, the region with the absolutely maximum temperature between 40 ℃ and 45 ℃ is few. In or- der to make the crane operate safely and stably, with the consideration of the insulation material and the actual work in the motor,it is necessary to modify the motor rated power at different temperatures.
出处
《太原科技大学学报》
2013年第2期130-133,共4页
Journal of Taiyuan University of Science and Technology
基金
山西省自然科学基金项目(2010011031-4)
关键词
起重机
电动机
额定功率
温度
修正
crane
motor
rated power
temperature
modification
