阻抗电压

基于阻抗电压法的变压器容量测试装置的研制

Study on transformer capacity testing equipment based on impedance voltage method

在有些应用中，例如监测电化电池和测量半导体的电阻系数，则可能必须进行高阻抗电压切换。

High impedance voltage switching may be necessary in applications such as monitoring electrochemical cells and measuring semiconductor resistivity .

壳式变压器并联线圈电流分配及阻抗电压计算

Calculation of Ampere-turn Distribution and Impedance in Shell-Type Transformers

文中利用变压器阻抗电压为固定值的原理，提出一种测试变压器容量的方法，并结合现场实际，开发了相应的测试装置。

A method to test the transformer capacity was put forward and relevant testing device was developed .

高阻电路的切换应用包括小电流、高电阻和高阻抗电压应用。

Switching applications of high impedance circuits include low current , high resistance , and high impedance voltage applications .

通过接地变压器结构型式、容量和阻抗电压的分析研究，得出正确选择接地变压器的方法。

Based on the analysis of the structural type , capacitance and impedance voltage of grounding transformer , a proper method of choosing grounding transformer is proposed in this paper .

探讨了3×75MVA变压器阻抗电压的合理选择及其对降低工程造价和运行能耗的作用，对厂矿企业大型变配电工程设计有一定参考价值。

Reasonable selection methods of impedance voltage of 3 × 75 MVA transformer were discussed . Its effects on reduction of engineering costs and running energy consumption were also discussed . It gave a reference to large engineering design of electricity distribution of enterprises .

通过对变压器铁芯结构、阻抗电压、冷却方式和绕组容量分配等问题的研究，给出了这种新型AT方式牵引变压器的主要技术规格，并介绍了相关配套电气化设计情况。

By study the issues of iron core structure of transformer , impedance voltage , cooling mode and the distribution of winding capacity etc , gives the main technical specifications for this new type traction transformer in AT power supply mode and describes associated railway electrification designs .

人工电源网络是EMC测试中使用的主要辅助设备，对其校准方法进行了介绍，包括阻抗和电压分压系数的校准，其中重点介绍了电压分压系数的测量方法。

The calibration of Line Artificial-Mains Network for EMC test is introduced in this article , including the calibration of impedance and voltage division factor , with emphasis on the method of voltage division factor .

研究了这种新型套筒天线的输入阻抗、电压驻波比（VSWR）、增益及辐射方向图等电特性。

The electric characteristic parameters of this novel sleeve antenna are calculated , including the input impedance , voltage standing wave ratio ( VSWR ), horizontal gain and radiation pattern .

其次研究了宽角有限长双锥天线的宽带特性，解析地求出了宽角有限长双锥天线的输入阻抗和电压驻波比等参数，并通过CST微波工作室的仿真验证了结果的正确性。

Secondly , the broadband characteristics of the wide-angle biconical antenna have been researched and parameters such as input impedance and VSWR are resolved . Simulations are carried out by CST microwave studio to demonstrate validity of the results .

变压器短路阻抗及电压调整率计算

Calculation of Short Circuit Impedance and Voltage Regulation Rate of Transformer

测量架空输电线路正序阻抗干扰电压的消除方法

Elimination of Disturbance Voltage in Measuring Positive Sequence Impedance for Overhead Transmission Line

且外加信号电压的频率越高时，探测器的阻抗与电压之间的线性关系越明显。

The linear of between the resistance and the voltage got more obvious as the increasing frequency .

卤化亚汞声光器件换能器电输入阻抗仪器电压、出电流信号能够自动转换。

The Electrical Impedance of Piezoelectric Transducer Mercurous Chloride Devices ; Automatic exchange for voltage and current output .

测量采用吉士利公司的236源测量设备提供恒定电流和高输入阻抗的电压测量。

The 236 source-measure unit of KEITHLEY company was used which can supply the constant current and the high input resistance .

电机类分布式电源短路计算中等效为阻抗和电压源串联的模型。

The equivalent model of short circuit calculation of conventional generators can be a equivalent impedance in series with a voltage source .

研究进一步提高测量系统灵敏度的方法，设计高输入阻抗的电压跟随电路。

The methods for increasing the sensitivity of the measurement system were studied and the voltage follower based on operational amplifier was designed .

超导故障限流器与常规限流电抗器不同的是：它不但可以限制短路电流，使得轻型断路器可以正常动作，而且在电网正常运行时不呈现任何阻抗和电压降。

Unlike reactors , the Superconducting Fault Current Limiters ( SFCL ) without impedance or voltage drop during normal operation , can limit the short circuit current to a lower level , so that the underrated switchgears can be operated safely .

采用该方法对自由空间对数周期偶极天线的方向图、增益、输入阻抗和电压驻波比以及等效相位中心等特性进行了详细的分析计算，且计算时考虑了阵中所有偶极子之间的全部互耦。

The electrical characteristics ( radiation pattern , gain , input impedance , voltage standing wave ratio , etc. ) and the variable phase centers of the log-periodic dipole antenna in the free space are analyzed and calculated in detail , taking into account all mutual coupling effect .

一种高输入阻抗单CCII电压模式滤波器一种新颖的基于CCⅡ+/-电压模式双二阶滤波器

A Novel Single CC ⅱ Based Voltage Mode Filter with High Input Impedance

测量结果表明，天线的阻抗带宽（电压驻波比，VSWR≤2）和圆极化带宽（轴比AR≤3dB）分别达到18.8%和12.3%。

The impedance bandwidth for VSWR ≤ 2 and circular polarization bandwidth for axial ratio AR ≤( 3 dB ) reaches 18.8 % and 12.3 % , respectively .

在推广的海伦积分方程的基础上对方程进行了化简，得到了Nakano方程，用矩量法将方程化为矩阵方程，给出了广义阻抗矩阵，电压矩阵的表达式。

As the generalized Halen integral equation was simplified , the Nakano equation was derived and converted into a matrix equation through the moment method .

基于传输线分布参数节点导纳方程和数值拉普拉斯反变换（NILT）方法，仿真分析了传输线串扰电压响应及传输线参数和端接阻抗对串扰电压峰值的影响。

Based on distribution parameter node admittance equations and the method of the numerical inverse Laplace transformation ( NILT ), crosstalk coupling voltage responses are analyzed at terminals of transmission lines with common ground .

基于节点阻抗解析的电压稳定性评估

Voltage stability evaluation based on node load impedance analyses

研究了放电峰值电流和平均阻抗与充电电压和气体压力的关系。

The discharge peak currents and corresponding impedances of laser cavity at various charge voltages and gas pressures were studied .

由此，提出了提高体导电能量传递效率的方法：阻抗法和电压法。通过电路分析，还发现了体导电能量传递系统的另一些重要特性：植入电池的充电条件和充电电流传递效率极限。

Two methods for enhancing recharging current transmission efficiency have been proposed : those are impedance method and voltage method .

第二个影响是线路电容电流流过电源，阻抗引起的电压升高。

The second effect is the rise in voltage resulting from the capacitive current of the line flowing through the source ( generator ) impedance .

通过对比电缆整定的单位千米阻抗值和电压电流值，来确定线路上的故障点。

Power lines have set impedance per kilometre and using this value and comparing voltage and current the distance to a fault can be determined .

基于交流阻抗和两极电压试验数据的分析，发现发电机转子绕组因存在铜渣而造成匝间短路故障的原因。

Based on the analysis of AC impedance and two poles voltage test data , the reason of turn-to-turn short circuit fault caused by having copper dregs in generator rotor winding was found .