At present, China is still widely used locomotive with forced ventilation of the traction motor, the continuous power rating to a large extent dependent on the ventilation and cooling effect.
目前我国机车上仍广泛地采用具有强迫通风的牵引电机，其连续定额功率在很大程度上依赖于通风冷却的效果。
Continuous power: continuous operating at regulate conditions and specific period and the rating is 90% of 12 hour power.
持续功率：指按规定工况和期限不间断地工作，标定值为12小时功率的90%。
Continuous power: continuous operating at regulate conditions and specific period and the rating is 90% of 12 hour power.
持续功率：指按规定工况和期限不间断地工作，标定值为12小时功率的90%。
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