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YVP variable frequency speed regulating motor

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GHON
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ZhejiangWenzhou city
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Wenzhou Jinghong Electric Co., Ltd.

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Product Details

YVFEJ/YVPEJ系列变频调速制动三相异步电动机变频制动电机是在原有的变频电机上根据需要加一个制动器而形成的。变频电机的优点:除了所知道的宽频,节能之外,最大的优点就是有效限制启动电流。就是说采用变频器运转,随着电机的加速相应提高频率和电压,起动电流被限制在150%额定电流以下(根据机种不同,为125%~200%)。用工频电源直接起动时,起动电流为6~7倍,因此,将产生机械电气上的冲击。采用变频器传动可以平滑地起动(起动时间变长)。起动电流为额定电流的1.2~1.5倍,起动转矩为70%~120%额定转矩;对于带有转矩自动增强功能的变频器,起动转矩为100%以上,可以带全负载起动。
变频制动电机概述:
变频调速制动电动机是靠改变供电频率达到电机调速的目的,它依据的原理(公式):n=60f/p
    式中: n—每分钟转速     p—极对数      f—频率(我国电网标准为50Hz)
    由上述公式看出,当电机极数(p)一定时,频率改变,变频电机每分钟转速(n)将随之改变,通过变频器改变供电频率,以达到调速目的。
YVPEJ变频调速制动电机有时需要与变频器配合使用。目前国际上普遍采用变频调速,因为变频调速有以下优点:
    1、效率高、节能显著;
    2、调速平滑能在5~100Hz范围内无级调速;
    3、低频起动时力矩对负载冲击小;
    4、起动电流小,不用附加起动设备;
    5、体积小、重量轻、安装尺寸和Y系列相同;
    6、在风罩内装有轴流风机,在各种转速下,均有良好的冷却效果;
    7、应用范围广,在50Hz以下可作恒转矩运行,在50Hz以上可作恒功率运行;
    8、较电磁调速电机节能降耗,调速范围广,结构简单,使用可靠,维修方便。
YVPEJ系列电动机使用条件
   1、环境温度不超过-15℃~+40℃               5、工作制:连续S1
    2、海拔不超过1000m                            6、电机绝缘等级:F级
    3、电机防护等级IP44                           7、额定频率50Hz
    4、额定电压380(220)V±10%   制动电机调速系统的特性
  电动机变频调速范围(标准系列):5~50Hz恒转矩调速;50~100Hz恒功率调速。在矢量控制条件下,调速范围还可扩大。>
 注:电机可选装光电编码器、制动器、测速发电、超速开关。(为预定产品)
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