正弦波滤波器
产品说明A.由于变频器的输出含有高频谐波,增加了动力电缆及电机的损耗。
B.同时极高的dv/dt会引起数MHz的辐射干扰。
C.如果电机需要长线传输时(电机线缆超过50米),由于行波反射引起电机端电压叠加,使电机绝缘破坏,甚至使电缆爆裂。
对于谐波电流,可以通过改变调制方式,降低谐波分量但并不能完全消除。由dv/dt引起的射频干扰,可以加装dv/dt电磁滤波器,但只能对一定长度的电缆有效,并不适合任意长度的电缆。
能同时解决以上问题的有效方法使在变频器输出侧加装正弦波滤波器,将SPWM调制波滤成近似正弦的电压波形,正弦波滤波器由高频出相电抗器,RC回路,共模电抗器组成。可以有效的抑制高频损耗及dv/dt射频干扰,并使电机和变频器的线缆延长。
滤波器可以把给电机的脉宽调制输出电压转变成正弦波电压。从而使得电机的寿命和整个系统的可靠性有重大的改善。
滤波器型号额定电流(V)绝缘等级尺寸(±5mm) DD1WW1W2HA*BSFN-3990-0010-EISF10A7%~12.5%F21920111989762007*13SFN-3990-0015-EISF15A7%~12.5%F21920111989762107*13SFN-3990-0020-EISF20A7%~12.5%F24318212296/29011*18SFN-3990-0030-EISF30A7%~12.5%F245182125100/27010*18SFN-3990-0040-EISF40A7%~12.5%F295214160120/38511*18SFN-3990-0060-EISF60A7%~12.5%F325243162132/35012*20SFN-3990-0080-EISF80A7%~12.5%F385260198175/42512*20SFN-3990-0100-EISF100A7%~12.5%F385260200175/53012*20SFN-3990-0150-EISF150A7%~12.5%F435325240198/53013*22SFN-3990-0200-EISF200A7%~12.5%F435325240198/53013*22SFN-3990-0250-EISF250A7%~12.5%F435325270228/58013*22SFN-3990-0330-EISF330A7%~12.5%F435325270218/59013*22SFN-3990-0400-EISF400A7%~12.5%F550420260206/76013*22SFN-3990-0500-EISF500A7%~12.5%F655450350310/830/SFN-3990-0600-EISF600A7%~12.5%F655450350310/780/SFN-3990-0700-EISF700A7%~12.5%F655450350310/830/SFN-3990-0800-EISF800A7%~12.5%F735490375332/950/SFN-3990-0900-EISF900A7%~12.5%F735490375332/950 SFN-3990-01000-EISF1000A7%~12.5%F735490375332/950
滤波器型号载波频率
(Khz)变频器
(Kw)额定电流
(A)SFN3048D-0005-EISF50.755SFN3048D-0005-EISF51.55SFN3048D-0005-EISF52.55SFN3048D-0010-EISF545SFN3048D-0010-EISF55.510SFN3048D-0015-EISF57.515SFN3048D-0025-EISF41125SFN3048D-0030-EISF41530SFN3048D-0040-EISF418.540SFN3048D-0045-EISF42245SFN3048D-0060-EISF33060SFN3048D-0080-EISF33780SFN3048D-0090-EISF34590SFN3048D-0110-EISF355110SFN3048T-0150-EISF375150SFN3048T-0180-EISF390180SFN3048T-0220-EISF3110220SFN3048T-0265-EISF3132265SFN3048T-0320-EISF3160320SFN3048T-0370-EISF3185370SFN3048T-0400-EISF3200400SFN3048T-0450-EISF3220450SFN3048T-0500-EISF3250500SFN3048T-0600-EISF3285600SFN3048T-0650-EISF3315650SFN3048T-0700-EISF3355700SFN3048T-0770-EISF2385770SFN3048T-0800-EISF2400800SFN3048T-0900-EISF2450900SFN3048T-1000-EISF25001000SFN3048T-1100-EISF25501100SFN3048T-1200-EISF26001200SFN3048T-1600-EISF28001600SFN3048T-2000-EISF210002000