The ACS 1000i comes standard with a 24-pulse diode rectifier bank,which eliminates harmonic disturbances to the grid without increasing the complexity of the frequency converter.It meets the stringent requirements of IEEE 519,IEC 61000-2-4 and EN standards for current and voltage harmonic distortion.No expensive harmonic analysis or filter configuration is required for new frequency conversion projects.
Voltage reflections and common-mode voltages-common to all inverters-can cause insulation damage to standard motors and cause harmful bearing currents.In addition,if precautions are not taken,the motor can also suffer from motor heating caused by higher harmonics generated during inverter switching.
ABB’s patented product-the output sine wave filter-configured with the ACS 1000i eliminates the aforementioned voltage reflections and common mode voltages.The motors are supplied with near perfect sinusoidal current and voltage waveforms.Not only that,the motor cables can be up to 3000 meters or more in length without any risk of voltage reflections.
ACS 1000i标准配置24脉波二极管整流器组,消除了对电网的谐波干扰而无需增加变频器的复杂度。她满足IEEE 519,IEC 61000-2-4和EN标准对电流和电压谐波畸变的严格要求。对于新建的变频项目,无需昂贵的谐波分析或配置滤波器。
电压反射和共模电压–所有逆变器存在的共性-对标准电机会造成绝缘损害,并产生有害的轴承电流。此外,如果不采取预防措施,电机还会遭受逆变器开关过程中产生的高次谐波而造成的电机发热。
ACS 1000i配置的ABB专利产品-输出正弦波滤波器-消除了上述的电压反射和共模电压。提供给电机的是近乎完美的正弦波电流和电压波形。不仅如此,电机电缆的长度可达3000米或更长,而不存在任何电压反射的风险。
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