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双语推荐：跳线

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1 000 kV特高压交流同塔双回输电线路由于电场间的相互影响,其电晕问题更为突出,根据示范工程开展的同塔双回耐张塔跳线及金具的电场计算结果,需要对跳线及其金具结构进行优化。为获得优化后的跳线及金具电晕放电特性,利用紫外成像仪对笼式和铝管式2类不同结构刚性跳线开展电晕特性试验研究,找出有明显电晕放电的跳线及金具,确定放电位置和电晕起始电压试验值。采用三维有限元方法建立仿真模型,计算场强,分析产生电晕的原因。研究结果不仅验证了电晕特性研究方法的有效性,同时表明优化后的跳线及金具能有效降低电场强度,防晕效果显著。根据研究成果,推荐采用的刚性跳线及配套连接金具满足特高压同塔双回输电线路的运行要求,已应用于示范工程的设计建设中。
Due to interaction among electric fields the corona discharge is more hazardous for the secure operation of 1 000 kV UHVAC double circuit transmission lines on the same tower. The computational results of electric fields of jumpers and fittings for the demonstration project of 1 000 kV UHVAC double circuit transmission lines on the same tower show that the structure of the jumper and fittings should be optimized. To obtain the corona discharge characteristics of optimized jumper and fittings, the experimental investigation for corona discharge characteristics of cage-type and aluminum tube-type of rigid jumpers with different structures is carried out by ultraviolet imager to find the jumpers and fittings with obvious discharge traces to determine the discharge position and the trail value of corona inception voltage. Three-dimensional finite element method is utilized to establish the simulation model to calculate electric field strength and analyze the reason to lead to corona. Resul

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与6分裂导线相比，750 kV线路采用4分裂导线在工程初期投资降低，在经济性上具有一定优势，但导线周围电磁环境是否满足要求则需要进行深入研究。运用三维有限元软件，采用谐响应分析方法，考虑了杆塔、金具、绝缘子串等因素和相间影响，仿真计算了750 kV 4分裂耐张塔跳线、导线的表面电场分布，分析了跳线表面场强的影响因素；给出了表面场强较高的4分裂上相跳线的合理优化建议；并计算了750 kV 6分裂耐张塔跳线、导线的表面电场分布，对比分析了4分裂和6分裂的计算结果。结果表明：4分裂上相跳线表面最高场强高于外角侧与内角侧的原因是受相间影响；相近条件下，750 kV线路采用6分裂导线时的电磁环境要优于4分裂；4分裂上相跳线选用JL/G3A-900/40型扩径导线后其表面最高场强降至2600V/mm 以下。所得研究成果可为后续工程导线型号的选取及跳线的安装布置所借鉴。
In the initial stage of 750 kV transmission project adoption of 4-bundled conductor makes investment reduced than the adoption of 6-bundled conductor, so it possesses a certain advantage in economy, however whether the electromagnetic environment around transmission line could meet the demand needs to be further studied. Applying three-dimensional finite element software and adopting harmonic response analysis, the simulation calculation of surface electric field distribution of 4-bundled conductor and jumper of tension tower for 750 kV transmission line is performed while the factors such as tower, fitting, insulator string and so on as well as the interaction among phases are taken into account, and the influencing factors of surface electric field strength of the jumper are analyzed; reasonable optimization suggestions for the 4-bundled conductor jumper of upper phase with higher surface electric field strength are given; the surface electric field distribution of 6-bundled conducto

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1000kV特高压交流双回路输电线路的换位设计复杂,分析了三柱换位设计的优缺点,针对其占地多、跳线设计复杂、施工要求高的特点,研究了一种新型双柱换位塔。介绍了双柱换位塔的跳线布置方式、电磁环境、防雷水平以及跳线金具串的设计,并将其与三柱换位塔在走廊占地、塔重等方面进行综合经济指标比较,结果表明双柱换位塔更具优越性和实用性。
As the transposition design of 1 000 kV UHVAC double-circuit transmission line was complicated,the advantages and disadvantages of three-column transposition tower were analyzed.According to the disadvantages of three-column transposition tower,which were more occupied land,complicated jumpers and high construction requirements,a new type of tower named double-column transposition tower was researched.The jumpers'' arrangement,electromagnetic environment,lightning protection level,jumper fitting strings''design of double-column transposition tower were introduced. Compared with the three-column transposition tower in corridor area,tower weight and other comprehensive economic indicators,it shows that double-column transposition tower has more superiority and practicability.

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本文通过对110kV江南站内电缆终端现状接线方式的分析，并根据现场实际情况，设想对110kV江南站内电缆终端跳线接线方式进行优化改造，改造后实现当连接江南站任意一端电缆发生故障或需要检修时，通过调整跳线方式使江南站主变可以快速恢复供电。
This article analyzes the way of 110kV cable terminal connection in Jiangnan Station. According to the actual situation,improvement and reformation of 110kV cable terminal connection in Jiangnan station are put forth. After reformation,if there is any accident happened in cable or cable is needed repairing in Jiangnan Station, the main transformer substation can rapidly supply electricity by adjusting jumping wires.

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目前2.5G以上高速SFP链路为光传输方式,基于电传输的SFP最大速率仅为1G,缺乏用于2.5G以上高速链路的技术和产品。本文基于普通电缆材料,采用电磁场与电路联合仿真技术,设计出低成本、高质量的SFP电缆跳线,可替代现有的3G以下的由高速光模块和光缆组成的SFP光跳线模块。
Traditionally,the maximum transmission rate of the electricity-based SFP is 1G,lacking the technology and product to convey the 2.5 G&beyond high-speed links. At present,optical transmission is the primary way to support 2.5 G&beyond high-speed SFP links. Based on common cable materials,this paper employs electromagnetic field and circuits joint-simulations to design low-cost,high-quality SFP cable jumper in order to replace the 3G&below SFP fiber jumper which is composed of high-speed optical module and fiber.

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采用有限元法仿真计算了实际线路和试验简化模拟布置情况下刚性跳线及金具表面的电场分布;并利用等效场强方法进行了特高压交流耐张塔刚性跳线及金具的电晕试验研究,研究结果表明:铝管式、鼠笼式刚性跳线以及铝管式结构的相关金具满足电晕试验要求,鼠笼式结构的相关金具不满足电晕试验要求,建议将鼠笼式结构中部分间隔棒的线夹改成与铝管式结构中的椭圆型引流间隔棒一样,户外试验场各场强对比点处的起晕场强约在28.74~31.38 kV/cm之间。试验结果可以在其它工程中得以参考应用。
Using finite element method the distributions of electric field on the surfaces of rigid jumpers and fittings under the conditions of actual transmission line and simplified simulated layout for the test are simulated. Using equivalent electric field strength method the corona tests on rigid jumpers and fittings for UHVAC double circuit tension support are performed, and test results show that the aluminum-tube type of rigid jumpers and squirrel cage type of rigid jumpers as well as interrelated fittings with aluminum-tube structure can meet the demand of corona test, however the interrelated fittings with the structure of squirrel cage cannot meet the demand. The corona inception field strengths at the field strength comparison points in outdoor testing field are within the range from 28.74 kV/cm to 31.38 kV/cm, and such a testing results are available for reference to other projects. It is recommended to change the clamps of partial spacers in the squirrel cage structure into the cla

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信息化手段对于解决教学中的重点和难点起到重要的辅助作用。该文以综合布线技术课程的教学模块"常见跳线的制作与测试"为例进行信息化教学设计,通过分析教学目标、内容、对象,展开教学过程设计,针对不同的教学内容运用恰当的信息技术进行层层剖析,再结合全方位的教学互动方式,激发学生主动性,达成知识、技能、职业素养三个方面的教学目标。
Information technology for solving the key and difficult points in teaching plays an important role. This paper takes the teaching module"fabrication and testing of common jumper"of the course Integrated Cabling Technology as an example of information-based instructional design. According to the analysis of the teaching goal, content and object, it carries on the teach?ing process design by explaining different contents with appropriate information technologies and combining different interactive teaching methods to stimulate students'' initiative to reach the instructional objectives of knowledge, skill and professional quality.

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随着嵌入式系统在各行各业的广泛使用，嵌入式软件的更新维护也变得日益重要。传统的嵌入式软件更新工作繁琐，需要专业人员使用专用的仿真器并且要经过打开设备、手工安装跳线等步骤。本文在IAP、分散加载、MFC等技术的基础上，以lpc1768为平台设计了一套嵌入式软件更新系统。此系统操作简单，并解决了传输误码、更新过程中掉电等关键技术问题。
With the embedded systems widely applied in various fields,maintenance of embedded software has become very important.The old update method is actually cumbersome.The steps include taking out the chip and manually installing wire.In this paper,an update mechanism for embedded system based on IAP,scatter loading and MFC is proposed.The method in this paper is more convenient and fast.Accidental interruption and transmission error during updating were settled in this paper.

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基于射频开关通过互联的方式获得不同的逻辑组合,从而形成射频开关网络对网络分析仪的端口数量进行扩展,用以满足多种功能的测试需求。文章介绍的装置同时具有4端口全矩阵,4端口半矩阵的功能,且可以通过改变跳线连接来实现不同功能的测试。从而大幅度提高多端口射频器件(如多端口基站天线,多系统合路平台(POI),多频合路器等)生产测试效率、降低测试成本,也可应用于无线终端或基站的多端口射频测试。
To expand test ports of network analyzer with variable RF switches combined to build the RF switch network which could have variable test function. The device introduced have full matrix of 4ports and half matrix of the other 4ports, and the test function could be increased more with jumper cable changed on ports connection. By integration this device on the test station, could improve the test efficiency and reduce test cost on production of RF equipments such multi-ports antenna of base station, POI, multi-ports combiners. Also it could be applied to test for wireless ter-minal equipments.

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环境保护在输电线路工程中的重要性日益突出,本文研究并总结了山区输电线路环保设计的若干理念,主要结论如下:优化铁塔长短腿的极差设计,为基础配置和选用提供更大的空间;因地制宜选择性地设计特殊的塔型(如小根开铁塔、跳线上绕塔、Z型边坡塔、三角形断面塔等),可满足山区工程实际需要;优先选用原状土基础和新型环保基础型式;长短腿与不等高基础配合塔脚架使用可最大限度减少开方,建设性提出了几种适宜的塔脚架方案;山区塔基边坡推荐优先采用生态或综合护坡方案。
It is increasingly of great importance of environmental protection in transmission line project. Some Environment favoring design decepts and its protection measures are presented in this paper, including:①optimal design of unequal tower-leg is useful for tower foundation design and configure;②special design of tower type(small-base-tower, Jumper upward-strained tower, z-shape tower and triangle section tower. etc) is carry out to meet the project requirements;③the undisturbed soil foundtion and new environment favoring type should preferably be applied;④the compound technique between unequal tower leg and piers with leg-trusses are constructively put up, to minimize the earthwork project; ⑤ecological treatment for tower-foundation-slope is recommended by the above analysis.

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