空压机节能改造对电机有什么要求？

空压机节能改造对电机的部分要求，今天我们继续来看看空压机节能改造对电机有什么要求。

Air compressor energy-saving transformation of the motor part of the requirements, today we continue to see the air compressor energy-saving transformation of the motor what requirements.

1、电机的绝缘

1. Insulation of motor

空压机节能改造介绍由于电机采用变频器供电，产生不同宽度和频率（几十到几千千赫）的固定振幅电压矩形脉冲，电压上升时间在 50ns-400ns 之间，在这么短的上升时间内，变频器经电缆向电动机供电时电动机端子上产生重复的电压突变（浪涌电压），势必降低绝缘的寿命。空压机节能改造厂家认为对于普通电机，电磁线、绝缘、引接线电缆没有经过特殊处理，在变频器供电情况下，存在重大隐患。

Energy saving retrofit of air compressor is introduced. Because the motor is powered by frequency converter, rectangular voltage pulses with different width and frequency (tens to thousands of kHz) are generated, and the voltage rise time is between 50ns and 400ns In such a short rise time, when the frequency converter supplies power to the motor through the cable, repeated voltage mutation (surge voltage) occurs on the motor terminal, which is bound to reduce the insulation life. Air compressor energy-saving transformation manufacturers believe that for ordinary motor, electromagnetic wire, insulation, lead wiring cable has not been treated specially, there are major hidden dangers in the case of inverter power supply.

2、谐波电磁噪声与振动

2. Harmonic electromagnetic noise and vibration

普通异步电机变频运行时，会使由电磁、机械、通风等因素所引起的振动和噪声变的更加复杂。空压机节能改造介绍变频电源中含有的各次时间谐波与电机电磁部分的固有空间谐波相互干涉，形成各种电磁激振力，当电磁力波的频率和电机的固有频率一致或接近时，将产生共振现象，从而加大噪声，如果电机的工作频率范围宽，转速变化大，空压机节能改造认为各种电磁力波的频率很难避开电机的各部件的固有振动。

The vibration and noise caused by electromagnetic, mechanical, ventilation and other factors will become more complex when the ordinary asynchronous motor operates with variable frequency. Energy saving transformation of air compressor introduces that the time harmonics contained in the frequency conversion power supply interfere with the inherent space harmonics of the electromagnetic part of the motor to form various electromagnetic exciting forces. When the frequency of the electromagnetic force wave is consistent with or close to the natural frequency of the motor, resonance phenomenon will occur, thus increasing the noise. If the working frequency range of the motor is wide and the speed changes greatly, the energy-saving transformation of the air compressor will be carried out It is considered that the frequency of various electromagnetic force waves is difficult to avoid the natural vibration of various parts of the motor.

以上就是空压机节能改造对电机要求的介绍，希望大家有所了解。如果想了解更多关于山东空压机的相关内容请关注我们公司网站：https://www.sdqyjn.com

The above is the air compressor energy-saving transformation of the motor requirements, I hope you understand. If you want to know more about Shandong air compressor, please pay attention to our website: https://www.sdqyjn.com