Questions regarding indoor corrosion-resistant motors
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I would like to ask everyone: what is the difference between corrosion protection for motors used indoors and those used outdoors? Also, at our construction site, what type of enclosed motors are used? Are they air-cooled or water-cooled? I can’t see from the outside that the motor is completely enclosed inside. I’m not majoring in electrical engineering. I hope you will kindly share your insights.
Motors can be classified as AC motors and DC motors based on whether they use alternating or direct current. They can also be divided into high-voltage and low-voltage motors according to their voltage level. There are also synchronous motors and asynchronous motors. I think the question posed by the original poster isn’t very clear. Among AC asynchronous motors, there are explosion-proof and non-explosion-proof types, as well as different protection levels, corrosion resistance levels, and insulation levels. In terms of cooling methods, water cooling is rarely used; most motors are cooled by air, and this information can be found by searching on Baidu.
The motor is placed indoors, falling under the indoor corrosion resistance rating; its cooling method is water cooling at the bottom and air cooling at the top. My main question now is: why is this type of motor designed to be fully enclosed? It is used to drive the nitrogen blower and several circulating water pumps. Is it really necessary to make it IP44, with a fully enclosed design? Especially in terms of the use of nitrogen compressors. :handshake