查询词典 electric current

Be based on Matlab to emulate computational software, to jacket medium faradic build a model respectively with capacitance electric current, the response that discussed cable jacket to be isolated from to issue jacket electric current in all sorts of breakdown is characteristic.

基于Matlab仿真计算软件，对护套中的感应电流和电容电流分别建立模型，讨论了电缆护套绝缘在各种故障下护套电流的响应特性。

The unit of rate of flow of electric current is the ampere, which shows the amount of electric current.

电流流动的速率的单位是安培，它表示电流的大小。

The unit of rateof flowof electric current is the ampere, which shows the amount of electric current.

电流流动的速率的单位是安培，它表示电流的大小。

This digital inductance reflectoscope reflector is based on the rule that the voltage the electric current will increase after the inductance added, because the speed of the voltage the electric currents%26rsquo; increases is related with the inductance quantity after the inductance added, therefore we can survey the inductance the inductance by the inductance quantity the survey electric current achieved some predetermined number how much time it takes.

本数字电感测试仪以电感加上电压后电流增加的规律作为测量依据，因为电感加上电压后电流增加的速度与电感量相关，所以通过测量电流达到某一预定值所用的时间就能测量出电感的电感量。

The choice of the transformer includes: Main transformer use the main technique in number, capacity, model number...etc. in set data of the transformer to really settle; The electricity lord connected the line to introduce primarily the electricity lord connects the linear importance, design according to, the basic request, every kind of merit and shortcoming and lords that connect the line form connects the linear choosing more, the lord that combine to establish the in keeping with my plant the request connects the line; The short-circuit galvanometer is regarded as the most important link, this thesis introduced the calculating purpose in short-circuit electric current, assumption term, general provision, the calculation, network transformation of a parameter detailed, and each calculation etc. knowledge that short circuit order; The choice of the high pressure electricity equipments includes the mother line, high pressure breaks the road machine and insulate the switch, electric current to feels with each other the machine, electric voltage feels with each other the choice principle of the machine, high pressure switch cabinet with request, and proceed to these equipments the school check with the related introduction in product.

变压器的选择包括：主变压器的台数、容量、型号等主要技术数据的确定；电气主接线主要介绍了电气主接线的重要性、设计依据、基本要求、各种接线形式的优缺点以及主接线的比较选择，并制定了适合要求的主接线；短路电流计算是最重要的环节，本论文详细的介绍了短路电流计算的目的、假定条件、一般规定、元件参数的计算、网络变换、以及各短路点的计算等知识；高压电气设备的选择包括母线、高压断路器、隔离开关、电流互感器、电压互感器的选择原则和要求，并对这些设备进行校验和产品相关介绍。

Electric current relay reflect circuit electric current changes but electric apparatus of movements.

因此，对继电保护装置本身的要求也越来越高。

Projection Current Detector J01465 is suitable for middle schools and polytechnic schools in the teaching demonstration or experiment with the projector as the current detector to measure small electric current and electric potential difference such as electromagnetic induction, photoemission, thermoelectric induction, and bridge measurement.

J01465投影检流计是适用于中学、中专配合投影仪在进行教学演示或实验时测量直流电路中微小电流和微弱电势差，如电磁感应、光电效应、温差电偶、电桥测量等实验的检流计。

Produces the red flash under the computer F-V signal function which supple gently changes, in the start process electric current is smaller than the normal work electric current, the voltage imitates 20V to start gradually to elevate until 220V, completely has avoided to the photosource electricity impact; The digital electric circuit board installs the radiator, the light bulb service life may enhance above three times; Canada supposes the lightning protector, further enhances the lamp equipment the service life.

在电脑F-V讯号作用下产生柔和缓变的红色闪光，启动过程中的电流小于正常工作电流，电压从120V开始逐渐升高直到220V，完全避免了对光源的电冲击；数码电路板加装散热器，灯泡的使用寿命可以提高三倍以上；加设避雷装置，进一步提高灯器的使用寿命。

Thus,locks through the rail switch electricity the contact locks for the signal electricity the magnet coil delivers the electric current,only then the switch location correct only then causes the closed circuit,the signal electricity to lock has the enough electric current,after namely the approval moves the signal handle to cause the semaphore opens,by the signal electricity locks the contact for the rail switch electricity to lock the magnet coil power transmission electric circuit to separate,therefore cannot move the rail switch handle again,soon the rail switch locks in the position.

这样，通过道岔电锁器的接点给信号电锁器的电磁线圈送电流，只有道岔位置正确才使电路接通，信号电锁器有足够电流，即准许扳动信号握柄使信号机开放后，由信号电锁器的接点给道岔电锁器电磁线圈送电的电路被断开，于是再不能扳动道岔握柄，即将道岔锁在规定位置上。

From the burden increased aspect clarify set upthe necessity of station, then pass to drew up to set up generalizeof transformer substation and line direction to consider, and passto analysis of carry the data, safety, economic and dependableconsider and made sure the 110 kV, 35 kV, 10 kV and station useelectricity of lord connect line, then again through burdencalculation and power supply scope made sure main number, capacityand model number of the transformer set, also in the meantime makesure the station uses capacity and model number of transformer,end, according to biggest keep on work electric current and shortcircuit calculating of calculation result, to the high pressureRong break a machine, insulate a switch, female line, insulate sonand wear a wall set tube, electric voltage with each other feelingmachine, electric current with each other the feeling machinecarried on choose a type, thus completed a 110 kV electricity apart of design.

本文首先根据任务书上所给系统与线路及所有负荷的参数，分析负荷发展趋势。从负荷增长方面阐明了建站的必要性，然后通过对拟建变电站的概括以及出线方向来考虑，并通过对负荷资料的分析，安全，经济及可靠性方面考虑，确定了110kV ，35kV ，10kV 以及站用电的主接线，然后又通过负荷计算及供电范围确定了主变压器台数，容量及型号，同时也确定了站用变压器的容量及型号，最后，根据最大持续工作电流及短路计算的计算结果，对高压熔断器，隔离开关，母线，绝缘子和穿墙套管，电压互感器，电流互感器进行了选型，然后进行配电装置和平面布置的设计以及防雷的设计，从而完成了110kV 电气一次部分的设计。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。