空壓機(jī)改造對電機(jī)有什么要求？

空壓機(jī)改造對電機(jī)的部分要求，今天我們繼續(xù)來看看空壓機(jī)改造對電機(jī)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、電機(jī)的絕緣

1. Insulation of motor

空壓機(jī)改造介紹由于電機(jī)采用變頻器供電，產(chǎn)生不同寬度和頻率（幾十到幾千千赫）的固定振幅電壓矩形脈沖，電壓上升時間在 50ns-400ns 之間，在這么短的上升時間內(nèi)，變頻器經(jīng)電纜向電動機(jī)供電時電動機(jī)端子上產(chǎn)生重復(fù)的電壓突變（浪涌電壓），勢必降低絕緣的壽命。空壓機(jī)改造廠家認(rèn)為對于普通電機(jī)，電磁線、絕緣、引接線電纜沒有經(jīng)過特殊處理，在變頻器供電情況下，存在重大隱患。

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、諧波電磁噪聲與振動

2. Harmonic electromagnetic noise and vibration

普通異步電機(jī)變頻運(yùn)行時，會使由電磁、機(jī)械、通風(fēng)等因素所引起的振動和噪聲變的更加復(fù)雜?？諌簷C(jī)改造介紹變頻電源中含有的各次時間諧波與電機(jī)電磁部分的固有空間諧波相互干涉，形成各種電磁激振力，當(dāng)電磁力波的頻率和電機(jī)的固有頻率一致或接近時，將產(chǎn)生共振現(xiàn)象，從而加大噪聲，如果電機(jī)的工作頻率范圍寬，轉(zhuǎn)速變化大，空壓機(jī)改造認(rèn)為各種電磁力波的頻率很難避開電機(jī)的各部件的固有振動。

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.

以上就是空壓機(jī)改造對電機(jī)要求的介紹，希望大家有所了解。如果想了解更多關(guān)于山東空壓機(jī)的相關(guān)內(nèi)容請關(guān)注我們公司網(wǎng)站：http://m.xingchangweb.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: http://m.xingchangweb.com