The three-phase analysis method should be applied for the distribution calculation of electrical tractionload in the electrical system.
电力牵引负荷在电力系统中的分布计算宜采用三相分析法。
2
Tractionload varies rapidly for multi-factors such as rail condition, so tractionload harmonic also has random time-varying characteristic.
由于电气化铁道牵引负载受线路条件等多种因素影响而波动剧烈，因此产生的谐波也具有随机波动性。
3
The paper hence suggested that to achieve transportation task for year 2000, China rail way should actively increase in train density while raising tractionload of trains.