工频电流

借助于付氏级数，把双指数函数转化为频率点，这样对于雷电流的处理就类似工频电流的处理。

By Fourier series , this paper transforms double exponential function into the sum of many sinusoidal functions , which is separated into many frequency points , so processing of lightning current is similar to that of power current .

为分析工频电流下接地网的性能奠定了理论基础。

Both of them provide theoretical foundation for analyzing performance of grounding grids in power current .

提高工频电流电压基波计算精度的Fourier均值算法

Fourier averaging algorithm for improving accuracy of basic wave voltages and currents calculations on industrial frequencies

研究开发了正温度系数（PTC）元件工频电流冲击特性计算机测试系统，详细介绍了系统的测试原理、硬件结构和软件设计。

An automatic measuring system for testing PTC alternating current impulse characteristics is developed . The measuring principle , hardware design and software design are described in detail .

为满足PTCR生产中耐工频电流冲击特性测试的要求，研制了多工位PTCR耐工频电流冲击特性测试仪。

In order to ensure the requirement of the current shock withstanding feature measurement in the PTCR producing flow , this paper has mentioned the research of multiple-channel automated current shock withstanding tester for PTCR .

导电高分子材料导电天然橡胶在工频电流电路中的特性

Behaviour of Electric Conductive Rubber in Circuit of Current at Industrial Frequency

工频电流电热解堵技术

The Unplugging Technique of Electrical Heating Treatment by Frequency Current

转化结果表明，冲击电流与工频电流类似，冲击接地电阻可按类似工频接地阻抗测量的方法测量；

From transformation result , impulse current is similar to power frequency current , so impulse grounding resistance is measured by the method measuring power frequency grounding resistance .

采用了注入工频电流法测量电网电容电流，并对该方法的误差特性进行了分析。

Moreover , a method of measuring the network capacity current by injecting a50 Hz current is applied into the neutral point and the error characteristic is analyzed .

本文详细比较了大型铜材和钢材接地网在工频电流下的接地性能，对工程应用有一定的参考价值。

The paper compares in detail the ground performance of large copper and steel material grounding grids in power current , which has some reference for the practical engineering .

然而，众多试验研究表明，接地装置在冲击电流作用下的特性与工频电流作用时有很大差别，表现出明显的非线性时变特性。

However , many tests show that characteristics of grounding device under the impulse current are nonlinear time-varying which are very different from characteristics under the industrial frequency current .

用该方法可以计算接地网的工频电流下的任何参数，如工频接地阻抗、接触电压和跨步电压、网内电位差等。

The methods are able to compute any parameter of grounding grids in power current , such as power ground impedance , touch and step voltage , potential differences within grounding grids and so on .

研究了含风电场的全电网电压计算方法，提出一种根据风电场输出电流计算全电网电压波动的分析方法，称之为定幅值工频电流源等效法。

An analysis method to simulate voltage fluctuation at all the nodes of a grid with wind farms is established in this thesis , called ' Equivalent current source with power frequency and fixed amplitude ' .

工频强电流电弧在非密闭充油容器中形成的压力

On Pressure Generation in an Unsealed Oil Container by High Current

同轴电缆工频感应电流的计算

Estimation of Power Feeding Frequency Induction Currents on Coaxial Cables

工频暂态电流测量装置的研制

Development of a Measuring Device of Transient Current

工频短路电流在接地网上的分布及对二次回路影响的研究

A Study on Distribution of the Power Frequency Short-Circuit Current in Grounding Grid and its Influence on the Secondary System

本实验利用工频交变电流产生的电磁场对碳源气体进行电磁场流态化来制备块体各向同性炭。

In this experiment we prepared the bulk isotropic carbon using carbon source gas fluidized under the electromagnetic fields generated by high-frequency alternating current .

研究了在稳恒强磁场和低强度工频交变电流复合作用下产生的电磁振荡对Al-6wt%Si合金初生相尺寸分布的影响规律。

The effect of simultaneous imposing high static magnetic field and alternating electric field on the solidification structure of Al-6 wt % Si alloy was investigated .

工频牵引电流对轨道电路传输的信号带来极大的干扰，信干比可达1／60。

The work-frequence tractive current creates big disturbance on the track singnal and the S / N can come up to 1 / 60 . In this paper .

随着我国石材工业的发展，为满足石材加工设备的大量需求，研制了水冷式工频大电流烧结机。

In order to meet the needs of stone processing equipment along with the development of domestic stone industry , an industrial frequency heavy current sintering machine of water-cooled type was developed .

对工频短路电流倍数增大导致保护误动的缺点，分析了非周期分量系数、互感器同型系数、互感器比误差系数的整定。

The setting of non-periodic component coefficient , transformer same type coefficient and transformer ratio error coefficient is analyzed for the misoperation of protection caused by the augment of short-circuit current multiple .

在谐振接地系统中，由于消弧线圈的补偿功能，工频故障电流幅值减小、极性改变，故障定位难度增加。

In the resonant grounded system , the compensation of the arc suppression coils makes the amplitude of fault current decrease and its polarity changed , so that single-phase-to-earth fault location gets more difficult .

本文介绍了CS5460A芯片的特点、工作原理及其在高精度工频电压、电流、功率、功率因数、频率表中的应用。

The paper introduces the technique feature and the operation principle of chip CS5460A , and its application in high-accuracy power frequency voltage , current , power , power factor , frequency meter .

另外，还分析了影响工频预击穿电流大小的各种因素。

Some factors which will affect the prebreakdown current are studied also .

在分析了预击穿电流、容性电流与施加电压的相位关系之后，提出了用构造法来获得工频预击穿电流。

Analyzing the relations between pre - break-down current , capacitive current and applied voltage , a construction method is proposed .

利用半个工频周期环流电流的平均值来修正参考电压幅值，用以抑制交流静态环流；

The AC steady-state circulation current can be suppressed by regulatingreference voltage amplitude according to average circulation current in half line cycle .

测量了真空灭弧室的工频预击穿电流，分析了预击穿电流的电极效应。

The prebreakdown current of vacuum interruptes under ac voltage has been measured , and the electrode-effect of prebreakdown current has also been analyzed .

工频电场及冲击电流对雄性小白鼠生物学效应的实验研究

Biological effects of AC electric field and shock current on male mice

提高了功率因素，避免了电机直接工频使用时大电流对电机线圈和电网的冲击。

Improve the power factor to avoid the motor direct-frequency high-current use of the motor coil and grid impact .