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  本文关键词：海拔对电力机车电气设备的影响，，由笔耕文化传播整理发布。

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temperature-rise

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    Calculation of ventilation and temperature-rise for brake resistance

    制动电阻通风及温升计算探讨

短句来源

    The Emulation Research of Energy-Recycle Temperature-Rise Experiment Platform of AC Driver Induction Traction Motor

    交流传动异步牵引电机能量反馈型温升试验台仿真研究

短句来源

    With quantitative calculation of ventilation and temperature-rise for locomotive brake resistance,this paper estimates the rationality of matching of ventilator and ventilation system of locomotive brake resistance,and the reliability of brake resistance ribbon,to optimize the design of locomotive brake resistance.

    对机车制动电阻通风和电阻带温升进行定量计算,从而判断通风机和制动电阻通风系统匹配的合理性和电阻带工作的可靠性,对制动电阻优化设计具有一定的指导意义。

短句来源

    Introduced in this paper are the concrete methods and notices of traction motor temperature-rise test,which in cludes continuous temperature-rise test and hour temperature-rise test.

    牵引电机温升试验包括持续温升试验及小时温升试验两种,文章介绍了其具体实施方法和技巧,以及实验时应注意的事项。

短句来源

    The article describes the influence of altitude on electric equipments of electric locomotive from dielectric strength of clearances,external-insulationstrength,temperature-rise,time of air compressor working,performance and life, and so on. It mentions what we should do for the locomotives running on high altitude area.

    从电气间隙的介电强度和外绝缘强度、电气设备的温升、空气压缩机的打风时间、电气设备的性能和寿命等方面阐述了不同海拔对电力机车电气设备的影响,并提出了高海拔地区电力机车应采取的措施。

短句来源

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    Calculation of ventilation and temperature-rise for brake resistance

    制动电阻通风及温升计算探讨

短句来源

    The Emulation Research of Energy-Recycle Temperature-Rise Experiment Platform of AC Driver Induction Traction Motor

    交流传动异步牵引电机能量反馈型温升试验台仿真研究

短句来源

    With quantitative calculation of ventilation and temperature-rise for locomotive brake resistance,this paper estimates the rationality of matching of ventilator and ventilation system of locomotive brake resistance,and the reliability of brake resistance ribbon,to optimize the design of locomotive brake resistance.

    对机车制动电阻通风和电阻带温升进行定量计算,从而判断通风机和制动电阻通风系统匹配的合理性和电阻带工作的可靠性,对制动电阻优化设计具有一定的指导意义。

短句来源

    Introduced in this paper are the concrete methods and notices of traction motor temperature-rise test,which in cludes continuous temperature-rise test and hour temperature-rise test.

    牵引电机温升试验包括持续温升试验及小时温升试验两种,文章介绍了其具体实施方法和技巧,以及实验时应注意的事项。

短句来源

    The article describes the influence of altitude on electric equipments of electric locomotive from dielectric strength of clearances,external-insulationstrength,temperature-rise,time of air compressor working,performance and life, and so on. It mentions what we should do for the locomotives running on high altitude area.

    从电气间隙的介电强度和外绝缘强度、电气设备的温升、空气压缩机的打风时间、电气设备的性能和寿命等方面阐述了不同海拔对电力机车电气设备的影响,并提出了高海拔地区电力机车应采取的措施。

短句来源

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    Temperature-rise Letdown by Moving the Heat Source Outwards

    热源外移法降温升

短句来源

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  temperature-rise

An analytical solution for the temperature-rise distribution in arc welding of short workpieces is developed based on the classical Jaeger's moving heat-source theory to predict the transient thermal response.

In isoperibol temperature-rise calorimetry, different approaches can lead to the corrected temperature rise.

However, only colchicine prevented temperature-rise in the inflamed area.

From the resulting inflammation two parameters were recorded simultaneously: temperature-rise in the inflamed tissue and nociception, a correlate of pain.

From the resulting inflammation two parameters were recorded simultaneously: temperature-rise in the inflamed tissue and nociception, a correlate of pain.

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This paper reviews the development of theories to predict the stability ofcontinuous welded rail in hot weather and describes the most recently develo-ped method of calculating the maximum safe temperature rise of the railabove the force free temperature. Recent experiments on a full scale test trackhave been used to check this theory. A traffic induced mechanism is describedwhich can lead to the growth of track misalignments and eventual buckling.Factors which can affect the longitudinal force in the rail such...

This paper reviews the development of theories to predict the stability ofcontinuous welded rail in hot weather and describes the most recently develo-ped method of calculating the maximum safe temperature rise of the railabove the force free temperature. Recent experiments on a full scale test trackhave been used to check this theory. A traffic induced mechanism is describedwhich can lead to the growth of track misalignments and eventual buckling.Factors which can affect the longitudinal force in the rail such as rollingout and creep are described.

本文评论热天无缝线路稳定性理论推导的发展及论述在锁定轨温以上时,计算钢轨最大安全升温值的最新方法。最近在实际线路上做的试验已用来检验此理论。描述了一种类似行车情况的机械装置,它能导致扩大线路方向偏差及最后发生臌曲。也描述了钢轨辗长及爬行等因素对钢轨纵向力的影响。

The paper presents the experiments sponsored by the Railway Engineering Research Institute of the Academy at the loop testing track on the subject of stability of continuous welded rail track under the combined action of temperature force and moving train. The characteristic curve showing the course of bouncing on track buckling was obtained. The floating portion of the track between the two bogies of a freight ear was modelled for the measurement of the lateral ballast resistance and the accumulated la-teral...

The paper presents the experiments sponsored by the Railway Engineering Research Institute of the Academy at the loop testing track on the subject of stability of continuous welded rail track under the combined action of temperature force and moving train. The characteristic curve showing the course of bouncing on track buckling was obtained. The floating portion of the track between the two bogies of a freight ear was modelled for the measurement of the lateral ballast resistance and the accumulated la-teral displacement at the misaligned track portion due to day and night temperature fluctuation was also measured. By computation with the test data, a table of temperature rise allowance ensuring stability of CWR track was compiled. The table will be useful for safe upkeep of CWR track in China.

本文介绍铁道部科学研究院铁建所在环形试验基地,进行温度力和列车动载共同作用下稳定性试验,这一试验获得了描述无缝线路产生“弹动”现象的失稳过程特征曲线。试验模拟车辆转向架之间轨排浮起,测定了道床横向阻力以及轨温昼夜变化,无缝线路在具有初始弯曲的地方所产生的横向累积变形,运用试验资料,进行计算,编制我国无缝线路稳定性允许温差表,供推广应用。

Based on the analysis of the present situation of the ZQ800-1 pulsating current traction motor on SS3 electric locomotive, effective measures have been taken to improve on it according to the requirements on the new SS6 electric locomotive to increase the continuous power of the traction motor to 800 kW and the constant power speed ratio to over 1.6. Test results show that when the contin uous power is increased, satisfactory results have been acquired for temperature rise, commutating performances, constant...

Based on the analysis of the present situation of the ZQ800-1 pulsating current traction motor on SS3 electric locomotive, effective measures have been taken to improve on it according to the requirements on the new SS6 electric locomotive to increase the continuous power of the traction motor to 800 kW and the constant power speed ratio to over 1.6. Test results show that when the contin uous power is increased, satisfactory results have been acquired for temperature rise, commutating performances, constant power speed ratio and power utilization coefficient at maximum speed. etc.

本文从分析SS3机车ZQ800-1脉流牵引电动机的现状出发,按SS6新型机车提出的增大牵引电动机持续功率至800kW和恒功率速度比在1.6以上的要求,对其采取了行之有效的改进措施,试验结果表明,在持续功率增加后,其温升、换向性能、恒功率速度比和最高速时的功率利用系数等均得到了满意的效果。

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  本文关键词：海拔对电力机车电气设备的影响，由笔耕文化传播整理发布。