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通过对按不同的励磁电流整定值调整的电阻制动性能进行试验，得出不同的试验结果。通过分析说明了改变励磁电流对电阻制动性能发生变化的原因，指出按1993年段规提出的最大励磁电流整定值存在的问题和建议。
By testing the resistance braking performance adjusted according to different excitation current settings, different test results are obtained. The reasons for the change of the braking current by changing the excitation current are analyzed. The problems and suggestions on setting the maximum exciting current according to the 1993 gauge are pointed out.