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Regarding the issue of oil accumulation in the cooling blower of high-voltage motors (YKS630-2GW), Jiamusi Motors

2025-10-10View Original

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1. As shown in the figure, it is a 3150KW high-voltage motor from Jiamusi. During operation, oil always accumulates in the cooling water tank at the top; over time, at least around 100 liters of oil can be discharged. 2. The bearing housing is opened as shown in the figure: the black pipes lead to the stator cavity; it’s not clear exactly where they are located. 3. The bottom of the bearing housing is as shown in the figure: 4. The exterior of the bearing housing. I would appreciate it if experts could help analyze the reasons for oil leakage or oil accumulation. Meanwhile, what is the function of the black pipes (the inlet and outlet of the bearing housing)? Are there any areas for improvement in this design, or are there any things I’m doing incorrectly during use? Thank you! Coal chemical technology

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