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贵刊1977No.6期中登载的“怎样处理东风型内燃机车电流分配不均”一文谈到了怎样在架轮修中测量主极绕组阻值和磁场削弱电阻阻值来估算线路电流分配的不均匀程度,这是个很好的方法。但是,我们看了之后,对其经验公式的准确性有一些不同的看法。我们觉得这个配比计算式的简化是不正确的。为此,提出一些自己的想法供参考。我们段小运用经验不足,错了的地方请指正。1.由于东风型内燃机车的牵引电动机是串励直流电机,单组电机在全磁场时昀电
The article titled “How to Deal With Current Distribution Unevenness in Dongfeng Diesel Locomotives” published in your journal No.60No.6 discusses how to measure the unevenness of line current distribution by measuring the resistance of the main winding and the field weakening resistor This is a good method. However, after we read it, we have some different opinions on the accuracy of our empirical formula. We think the simplification of this formula is not correct. To this end, put forward some of my own ideas for reference. We use a small segment of the lack of experience, the wrong place, please correct me. 1. As the traction motor of DFM locomotive is a series excitation DC motor, when a single motor is in full magnetic field,