电流的

If the background current is the opposite polarity, these unwanted currents could cause a reverse polarity current reading.

如果背景电流是反极性的，那么这种不希望有的电流可能会引起反极性的电流读数。

This invention concerns a current control process for a feed-in voltage converter, wherein a detected flux-inducing current component and a detected torque-inducing currrent component of an actual currrent vector of a rotating field machine are each controlled for a flux-inducing current component set value and a torque-inducing current component set value of the rotating field machine. To that effect, a control set-value (DELTA u*sp, DELTA u*sq) is determined, dependent each time upon a determined current component control deviation. From these, current components of an actual current vector are formed each time by overlay of a formed pilot value (u*spvor, u*sqvor). This invention also concerns a device for carrying out this process.

本发明涉及一种用于馈入电压式变流器的电流调节方法，其中分别将所检测的一感应式电机的一实际电流向量（i s 的磁通感应电流分量和一转矩感应电流分量i sq ）调节至该感应式电机的一额定电流向量的一磁通感应分量额定值和一转矩感应电流分量额定值，在这种情况下，分别根据所检测的一电流分量调节偏差计算出一调节器调节量（△u * sp ，△u * sq ），由这两个调节器调节量分别通过叠加所形成的一预控制量（u * spvor ，u * sqvor ）形成一额定电压向量的电压分量（u * sp ，u * sq ），本发明还涉及一种用于实施该方法的装置。

Simulation results also show that saddle-shaped distributed AMF can more effectively inhibit constriction of vacuum arc.

对于小电流扩散态真空电弧，重点仿真分析不同电弧电流与不同纵向磁场对其关键特性的影响，部分仿真结果进行了实验验证；对离子处于超音速流动的收缩态真空电弧的仿真表明，真空电弧的磁收缩主要是由于霍尔效应引起的，离子温度和电子温度沿轴向先增大后减小，马鞍形分布的纵向磁场能够更有效地抑制真空电弧的收缩，而且阴极斑点分布对真空电弧特性也有着显著的影响；对离子处于亚音速流动状态的大电流真空电弧的仿真表明，部分等离子体不能到达阳极而损失，马鞍形分布的纵向磁场能够更有效地抑制电弧等离子体的损失，同时能使阳极电流密度和能流密度的分布更加均匀。

Fused current method is adopted in the device for fault feeder detection. This method uses vector sum of compensated current and zero-sequence current and selects fault line according to different distribution of the sum.

该装置采用了一种新的接地选线的算法－电流融合算法，该算法将补偿电流与故障零序电流矢量求和，根据故障与非故障线路矢量和分布在不同区间作为选线判据。

CY2000 stable high-current test system or are only a computer-controlled automatic recording systems, real-time monitoring of input current waveform, but also by setting the trigger conditions×transient input current waveform.

CY2000大电流稳升试验测试系统是国内唯一一款计算机控制的自动记录系统，可实时监测输入电流波形，还可按设定的触发条件扑捉瞬态输入电流波形。

The characteristics and applications of zero order current protection are discribed in detail in this paper.

分析了零序电流保护的特点及应用情况，提出了零序电流保护属于后备保护系列、在和其它保护方式相配合方面还应加以改进，说明了零序电流保护在发电厂和变配电系统中的重要地位。

The influence of the linearization of rectifier external characteristic on the short-circuit current calculation is specially analyzed,because the exter.

给出了短路电流计算的数学模型，并利用可视化语言CVI完成了短路电流仿真计算；分析了整流机组外特性线性化对短路电流计算的影响。

The maloperation of transverse differential current protection will be caused by the circulating current when each fault occurs in parallel lines.

该文利用六序故障分量法对平行双回线的零序循环电流进行了分析，用零序电流对电流平衡保护的起动判据作了改进。

Through the analysis of the alloy electroplating solution in gradients, the process variables and their relationship between content of manganese in the alloy coating, the optimum process has been obtained, the additive to improve the cathode current efficiency was found; it was found that the deposits with a manganese content 40～60% exhibit excellent corrosion resistance; the corrosion resistance of zinc-manganese alloy coating will be even better after"phosphated"and passivated.

研究发现Na〓SeO〓能显著提高锌锰合金电沉积电流效率。首次用循环伏安法、恒电势电解法、恒电流阶跃法研究了Na〓SeO〓提高电流效率的作用机理。研究发现Na〓SeO〓在锌锰共沉积的条件下在阴极是分两步还原，即：首先在-0.9V处被还原为单质硒，然后在-1.25V处被还原为多硒阴离子。证明了多硒和多硒阴离子都在阴极存在特性吸附

Because the magnetic field is always associated with the current, then the magnetic field is expected to think that it is by another current - displacement current generated.

因为磁场总是与电流相联系，则预期的磁场也认为是由另一种电流——位移电流产生的。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。