Should the cooling fan of the generator be connected to the MCC, or should a separate motor control cabinet be installed?
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Only part of the project is done. As understood, the power plant should have an MCC motor control center; therefore, it is sufficient to provide start/stop signals to the MCC. But I don’t know how far MCC is; I’m worried about the large number of power cables for the motors (12 fans, 30KW each), and I’m not sure if there are enough circuit paths. I plan to build my own motor control cabinet to manage the fans, and it will be sufficient to use one main power supply line. However, if the plant’s MCC control is to be utilized, this approach incurs significant additional costs. I would like to ask that if the MCC in a power plant is used to control all the high-power motors in the plant, how are the long power cables taken into account? Is it possible to simply supply power to each area, with an MCC installed in each area?
We specialize in motor control cabinets
The total fan power is not high; the compressors in our factory also have a power rating of 160 KW per unit. The decision depends on the distance and costs involved. If the distance is too great, it’s better to connect directly to the main power supply and set up control circuits nearby the site. However, on-site operation has its disadvantages – operating from a distant location is rather troublesome. It’s definitely best to connect directly to the MCC for remote control. It is also possible to supply power to each area and set up MCCs; the decision depends on whether controlling costs or facilitating operation is more important.
https://baijiahao.baidu.com/s?id=1586469231422679736&wfr=spider&for=pc
What kind of generator is this? 630MW for thermal power, 390MW for gas turbines – are there no generator cooling fans shown in the drawings? Of course, enter the plant’s MCCs; there are many of them in a plant – for the main units, auxiliary units, and utility systems. . .
Sorry, I didn’t understand your question