The article expounds the electric circuit of the prototype of SS4 locomotive of 8-axle for freight traffic.
本文阐述了新制SS4型八轴货运电力机车样车的电气线路。
According to the harmonic characteristics of electric locomotive typed SS4 under typical operating situations, the current module of harmonic source is proposed.
依据ss4型电力机车在典型工况下的谐波特点，提出了谐波源的电流模型。
The TPZ27 electronic cabinet is the core control device of SS4 modified electric locomotive, in which the fault will affect the normal operation of electric locomotive.
电子柜是SS4改型电力机车的核心控制设备，其故障将直接影响电力机车的正常运行，因此，确保电子柜正常工作对电力机车的安全运行具有重要的意义。
The TPZ27 electronic cabinet is the core control device of SS4 modified electric locomotive, in which the fault will affect the normal operation of electric locomotive.
电子柜是SS4改型电力机车的核心控制设备，其故障将直接影响电力机车的正常运行，因此，确保电子柜正常工作对电力机车的安全运行具有重要的意义。
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