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【全国三菱水泵专用变频器价格】三菱水泵专用变频器图三菱 通用变频器;FR-D740-2.2K-CHT订 货 号 :FR-D740-2.2K-CHT商品型号:FR-D740-2.2K-CHT
1.变频器的调速原理
交流异步电动机的转速计算公式为:
n=60f(1-s)/p
由公式知,改变电源的频率时,因同步转速n与频率f成正比变化,故异步电动机的转速n也随之改变。可见变频器调速是利用电动机的同步转速随频率变化的特性,通过改变电动机的供电频率进行调速的。
2.变频器的调速方法
变频器是用静止变频装置(晶闸管)构成变频电源对异步电动机进行调速,它采用间接变换方式(交一直一交变频)把交流电通过整流器变成直流电,再用逆变器将直流电变为频率可调整的交流电供给异步电动机。如下图:
AC/f1――整流器-DC――逆变器――AC/F2
3.变频器的优点
3.1节约能源[举例:在泵、鼓风机和引风机的使用中,由公式n=60f(1-s)/p知转速与电源频率成正比,即改变电源频率就可以改变电动机的转速。理论上,流量(风量)与转速的一次方成正比,水压(或风压)与转速的平方成正比,所以轴功率与转速的三次方成正比。可见,与调节阀门相比,调节转速具有十分明显的节能效果。
3.2减少启动时对电网的冲击(无变频器启动时启动电流是电动机额定电流的5~7倍)。
3.3减低噪声,实现电动机的软启动和自由停车。
3.4运行方便、准确,减少了员工的劳动强度。
3.6在泵的使用上消除了泵的喘振现象,使泵处于至佳运行工况状态。
4.型号
FR-A720-5.5K
FR-A7AP
FR-A7NC
FR-A7NC-E KIT-C
FR-A820-00077-2-60(0.75KW)
FR-A820-00105-2-60(1.5KW)
FR-A820-00167-2-60(2.2KW)
FR-A820-00630-2-60(11KW)
FR-A820-2.2K-1
FR-A820-5.5K
FR-A840-00023-2-60(0.4KW)
FR-A840-00038-2-60(0.75KW)
FR-A840-00052-2-60(1.5KW)
FR-A840-00083-2-60(2.2KW)
FR-A840-00126-2-60(3.7KW)
FR-A840-00170-2-60(5.5KW)
FR-A840-00250-2-60(7.5KW)
FR-A840-00310-2-60(11KW)
FR-A840-00380-2-60(15KW)
FR-A840-00470-2-60(18.5KW)
FR-A840-00620-2-60(22KW)
FR-A840-00770-2-60(30KW)
FR-A840-00930-2-60(37KW)
FR-A840-01160-2-60(45KW)
FR-A840-01800-2-60(55KW)
FR-A840-02160-2-60
FR-A840-02160-2-60 75K
FR-A840-03250-2-60(160KW)
FR-A8AP
FR-A8NC
FR-A8NP
FR-ABR-3.7K
FR-ABR-H0.4K
FR-ABR-H0.75K
FR-ABR-H1.5K
FR-ABR-H2.2K
FR-ABR-H3.7K
FR-ABR-H5.5K
FR-ABR-H7.5K
FR-ADP
FR-BIF
FR-BIF-H
FR-BLF
FR-BSF01
FR-CC2-H560K-60
FR-CC2-H630K-60
FR-D720-0.1K
FR-D720-0.2K
FR-D720-0.4K
FR-D720-0.75K
FR-D720-1.5K
FR-D720-5.5K
FR-D720-7.5K
FR-D720S-0.4K-CHT
FR-D720S-0.75K-CHT
FR-D720S-1.5K-CHT
FR-D720S-2.2K-CHT
FR-D740-0.4K-CHT
FR-D740-0.75K-CHT
FR-D740-1.5K-CHT
FR-D740-2.2K-CHT
FR-D740-3.7K-CHT
FR-D740-5.5K-CHT
FR-D740-7.5K-CHT
FR-DU07
FR-E720-0.1K
FR-E720-0.2K
FR-E720-0.4K
FR-E720-0.75K
FR-E720-1.5K
FR-E720-15K-CHT
FR-E720-2.2K
FR-E720-3.7K
FR-E720-5.5K
FR-E720-5.5K
FR-E720-7.5K
FR-E720S-0.2K
FR-E720S-0.4K-CHT
FR-E720S-0.75K-CHT
FR-E720S-1.5K-CHT
FR-E720S-2.2K-CHT
FR-E740-0.4K-CHT
FR-E740-0.75K-CHT
FR-E740-1.5K-CHT
FR-E740-11K-CHT
FR-E740-15K-CHT
FR-E740-2.2K-CHT
FR-E740-3.7K-CHT
FR-E740-5.5K-CHT
FR-E740-7.5K-CHT
FR-F740-0.75K-CHT
FR-F740-1.5K-CHT1
FR-F740-11K-CHT1
FR-F740-15K-CHT1
FR-F740-18.5K-CHT1
FR-F740-2.2K-CHT1
FR-F740-22K-CHT1
FR-F740-3.7K-CHT1
FR-F740-30K-CHT1
FR-F740-37K-CHT1
FR-F740-45K-CHT
FR-F740-5.5K-CHT1
FR-F740-55K-CHT1
FR-F740-7.5K-CHT1
FR-F740-S110K-CHT
FR-F740-S132K-CHT
FR-F740-S160K-CHT
FR-F740-S185K-CHT
FR-F740-S220K-CHT
FR-F740-S250K-CHT
FR-F740-S280K-CHT
FR-F740-S315K-CHT
FR-F740-S355K-CHT
FR-F740-S400K-CHT
FR-F740-S450K-CHT
FR-F740-S500K-CHT
FR-F740-S500K-CHT
FR-F740-S560K-CHT
FR-F740-S630K-CHT
FR-F740-S630K-CHT
FR-F740-S75K-CHT
FR-F740-S90K-CHT
FR-F840-00023-2-60(0.75KW)
FR-F840-00038-2-60(1.5KW)
FR-F840-00052-2-60(2.2KW)
FR-F840-00083-2-60(3.7KW)
FR-F840-00126-2-60(5.5KW)
FR-F840-00170-2-60(7.5KW)
FR-F840-00250-2-60(11KW)
FR-F840-00310-2-60(15KW)
FR-F840-00380-2-60(18.5KW)
FR-F840-00470-2-60(22KW)
FR-F840-00620-2-60(30KW)
FR-F840-00770-2-60(37KW)
FR-F840-00930-2-60(45KW)
FR-F840-01160-2-60(55KW)
FR-F840-01800-2-60(75KW)
FR-F840-02160-2-60(90KW)
FR-F840-02600-2-60(110KW)
FR-F842-10940-2-60
FR-F842-12120-2-60
FR-FD
FR-HAL-H1.5K
FR-HAL-H30K
FR-HAL-H37K
FR-HCC2-H560K
FR-HCC2-H630K
FR-HEL-H0.4K
FR-HEL-H0.75K
FR-HEL-H1.5K
FR-HEL-H132K
FR-HEL-H2.2K
FR-HEL-H220K
FR-HEL-H3.7K
FR-HEL-H30K
FR-HEL-H37K
FR-HEL-H5.5K
FR-HEL-H7.5K
FR-HEL-H75K
FR-PA02-02
FR-PA07
FR-PU07