元通镇EASTOUR刹车电机ATL调速马达SB44A-35-PS

直流电机电枢反应的问题
　　1、直流电机的电枢磁场，对转矩没有贡献；
　　2、直流电机的电枢磁场，对主极磁场是交轴去磁作用，负载大时电枢电流大，去磁作用越强；
　　3、直流电机的定子磁场，都安装有换向极，换向极的励磁电流就是电枢电流；
　　4、换向极的磁极方向与电枢磁场方向始终相反，互相抵消，这样保证主极磁场方向不变，磁场不会因电枢反应而减小！
　　5、直流电机的电枢电流与励磁电流分别控制并没有优势可言；而恰恰是交流电机的电枢电流磁势与转子电流磁势互相抵消从而保持旋转磁势恒定有优势！ 　　
6、硬是要将将交流电机3-2变换成直流电机的励磁电流与转矩电流分别控制的矢量控制是无知的“巫术”！

元通镇EASTOUR刹车电机ATL调速马达SB44A-35-PS

我国稀土金属资源从开发利用来看,有以下特点:储量分布高度集中(主要是轻稀土)。我国稀土矿产虽然在华北、东北、华东、中南、西南、西北等六大区均有分布,但主要集中在华北区的内蒙古白云鄂博铁-铌、稀土矿区,其稀土储量占全国稀土总储量的95%,是我国轻稀土主要生产基地。轻、重稀土储量在地理分布上呈现出北轻南重的特点,即轻稀土主要分布在北方地区,重稀土则主要分布在南方地区,尤其是在南岭地区分布可观的离子吸附型中稀土、重稀土矿,易采、易提取,已成为我国重要的中、重稀土生产基地。
元通镇EASTOUR刹车电机ATL调速马达SB44A-35-PS

元通镇EASTOUR刹车电机ATL调速马达SB44A-35-PS

TF-042-3-4-5-7-8-10-12-15-20-S2-P2-P1
TF-042-25-30-35-40-50-70-100-S2-P2-P1
TF-060-3-4-5-7-8-10-12-15-20-S2-P2-P1
TF-060-25-30-35-40-50-70-100-S2-P2-P1
TF-080-3-4-5-7-8-10-12-15-20-S2-P2-P1
TF-080-25-30-35-40-50-70-100-S2-P2-P1
TF-090-3-4-5-7-8-10-12-15-20-S2-P2-P1
TF-090-25-30-35-40-50-70-100-S2-P2-P1


元通镇EASTOUR刹车电机ATL调速马达SB44A-35-PS
常用的电工钳有钢丝钳、剥线钳和尖嘴钳。钢丝钳：钢丝钳是一种钳夹和剪切工具，其用途很多：钳头上的钳口用来弯铰或钳夹导线线头，齿口用来旋转螺母，刀口用来剪切导线或剖切软导线绝缘层，铡口用来铡切较硬的线材。使用钢丝钳注意事项：钢丝钳的绝缘护套耐压一般为5V，使用时检查手柄的绝缘性能是否良好，绝缘如果损坏，进行带电作业时会发生触电事故。带电操作时，手离金属部分地距离应不小于2cm，以确保人身安全。剪切带电导线时，严禁用刀口同时剪切相线和中性线，或同时剪切两根相线，以免发生短路事故。


CH1500-3-S-G3-TR-H3
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CH3700-180-S-G3-TR-H3
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CH100-180-S-B-G3-TR-H3
CH100-200-S-B-G3-TR-H3