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Genset Sizing


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The management of my company has given me a task to calculate a genset (Diesel Engine and Alternator) for a machine. The load data of machine is as following;


Input voltage = 400VAC

Frequency = 50HZ

Main Motor = 37KW, 4poles (Eddy current motor)

Auxiliary motors = 2 x 2.2KW, 4poles

Setting motors = 4 x 0.45KW, 8poles


I have no more experience for genset sizing. I have read the paper "Genset sizing" by Marke, but I haven't cleared. Please help me.

Thanks in advance.

"Don't assume any thing, always check/ask and clear yourself".

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Hello AB2005


If you download my Electrical Calculations software from busbar32.exe

you will find calculations for genset sizing under the supply menu.

In you case, you can assume a single motor as the small ones are insignificant.


Hope this helps.


Best regards,

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