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等值计算电路
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     At the same time,important practical values of the equivalent calculation circuit and external performance curves have been expounded in the design,motion and relay protection setting for the electrified railways.
     同时,阐明等值计算电路和外特性曲线在电气化铁路设计和运行以及继电保护整定工作中的重要实用价值
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This paper is a summary report on scientific researches. Qn condition that the two-side supply of the ac tracting network for the electrified railway, brief generalizations have been done to analysis and calculation of the circulating current of the tracting network, short-circuit current of the tracting network, circuitous short - circuit current, relay protection scheme, eguivalent calculating circuit of the tracting supply system,higher harmonic current. We have given results to investigate for technical...

This paper is a summary report on scientific researches. Qn condition that the two-side supply of the ac tracting network for the electrified railway, brief generalizations have been done to analysis and calculation of the circulating current of the tracting network, short-circuit current of the tracting network, circuitous short - circuit current, relay protection scheme, eguivalent calculating circuit of the tracting supply system,higher harmonic current. We have given results to investigate for technical remouldings of electrified railway. We also have advanced suggestions to a number of technical measures,design norms,technical policy. Possibility and importance to realize the two-side supply of the tracting network have been explaned, in order that we might heighten physical property of the tracting supply system, technical economics targets, ability of the railway transportation.

在电气化铁路交流牵引网两边供电条件下,对牵引网平衡电流、牵引网短路电流、迂回短路电流、继电保护方式、牵引供电系统等值计算电路和高次谐波电流的分析计算,做了简要概括。对电气化铁路的技术改造问题,给出了调查研究结果。对若干技术措施、设计规范、技术政策,提出了建议。为提高牵引供电系统的物理性能、技术经济指标以及铁路运输能力,说明了实现牵引网两边供电的可行性与重要性。

On the basis of the circuit theory,electromechanics and practical state of the electrified railways,we have made up equivalent circuit of threephase traction substations and traction power supply systems and have got external performance curves.At the same time,important practical values of the equivalent calculation circuit and external performance curves have been expounded in the design,motion and relay protection setting for the electrified railways.

根据电路原理和电机学的基本理论,结合电气化铁路的实际状态,构成三相牵引变电所和牵引供电系统的等值电路,得出外特性曲线。同时,阐明等值计算电路和外特性曲线在电气化铁路设计和运行以及继电保护整定工作中的重要实用价值

It's easy to master and improve the computing precision by utilizing the approximate method which computes single line attrition on the base of computing circuit isotimic without attrition

阐述了在无损线等值计算电路的基础上计算单根线路损耗的近似方法,该方法简便易于掌握,提高了计算精度。

 
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