Impedance transformer is one kind of main equipment of track circuit in electrification district.
扼流变压器是电化区段构成轨道电路的主要设备之一。
The second amplifying device is connected to the summing node via an output matching circuit and a second impedance transformer containing a transmission line.
所述第二放大装置经由输出匹配电路以及包含传输线的第二阻抗变换器连接到所述求和结 点。
Because the impedance fault location method is easily influenced by the factor such as fault resistance, transformer error and asymmetrical line configuration, the fault location accuracy is lower.
由于阻抗法易受过渡电阻、互感器误差、线路结构不对称等因素的影响，所以测距精度不高。
The uses, operating principle and main requirements of the current transformer for differential relay with high impedance were described.
叙述了高阻差动继电器用电流互感器的用途、工作原理和主要要求。
On the basis of active power filter linear shunt transformer harmonic impedance control, a novel principle for high voltage alternate power distribution systems is proposed.
针对高压交流配电系统，提出一种基于线性并联变压器谐波阻抗控制的并联型有源电力滤波器新原理。
The parallel transformer can exhibit controllable impedance under the control of power electronic converters.
通过电力电子变换器的控制，使得并联变压器呈现可控的阻抗。
The design method of the high voltage and the fast response time pulse transformer used in the condition of low load impedance was introduced.
介绍了工作于低阻抗负载下的高压大电流快响应脉冲变压器的一种设计方法。
Also compared to the short circuit impedance method, it is more sensitive to distribution inductance and capacitance effecting on the transformer distortion.
它与短路阻抗法相比，对影响变压器变形的分布电感和电容更为灵敏。
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.
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。
The output characteristic of non impedance matching balance traction transformer is deduced by employing the theory of multiwinding transformer and with considering the leakage impedance of windings.
考虑绕组漏阻抗，应用多绕组变压器理论导出了非阻抗匹配平衡牵引变压器的输出特性；
And then combined with the impedance and admittance of the test results to calculate the transformer error.
然后结合阻抗与导纳的测试结果计算出互感器的误差。
At this moment, the excitation voltage transformer impedance and the system-to-ground capacitance come into being non-linear resonant circuit.
此时电压互感器的励磁阻抗和系统的对地电容形成非线性谐振电路。
Winding distortion may happen during transformer operation. Frequency response and short impedance are the main methods to test winding distortion.
变压器在运行中可能发生绕组变形，测试绕组变形的方法主要有频响法和短路阻抗法。
This paper will give a brief introduction of how to reduce transformer impedance to 3%, in order to ensure short-circuit test pulse current requirements.
本文将简要介绍如何变压器的阻抗降低至3%，以保证短路测试脉冲电流的要求。
However, due to large system impedance of ITER testing platform, the requirement of reducing transformer impedance is commonly met in actual transformer industry.
然而，由于ITER测试平台的大的系统阻抗，从而降低变压器阻抗的要求通常在实际变压器行业满足。
Secondary load impedance of a current transformer(CT) has great influence on the error of the CT.
电流互感器二次负载阻抗对电流互感器误差有较大的影响。
When using frequency sweep meter to measure the input impedance of antenna, the balanced - unbalanced transformer must be connected between coaxial transmission line and antenna.
用扫频仪测量天线的输入阻抗时，在同轴传输线与天线间应按平衡—不平衡变换器。
How to ensure compliance with the measured value transformer impedance requirements of users and to ensure basic balance is the key to the three-phase impedance of the transformer design.
如何确保符合用户的测定值变压器阻抗要求，以确保基本平衡的关键是变压器设计的三相阻抗。
This transformer can be used to realize the output impedance transformation of the ceramic pulse forming line with low characteristic impedance.
此变压器可用于低阻抗陶瓷脉冲形成线输出端的阻抗变换。
When matched with high – impedance rectifier transformer, it is constituted of control cabinet and rectifier transformer.
当选用高阻抗整流变压器时，全套设备由控制柜、整流变压器二大部件组成。
This paper analyzes the require of distribution transformer short impedance in national standard and puts forward a method to test the capacity of transformer with steady impedance voltage.
根据新实施标准对隔爆型干式变压器性能参数进行调整，对其变压器的短路阻抗进行了理论分析和计算，并给出了矿用隔爆型干式变压器的短路阻抗值。
The requirements of distribution transformer short impedance in national specifications were analyzed and transformer short-circuit impedance was used to test the capacity of transformer.
文中分析了国家标准中规定的配电变压器短路阻抗的要求，提出了利用变压器短路阻抗来测试变压器实际容量的方法，并研制了相关测试装置。
When matched with low - impedance rectifier transformer, the whole set is composed of control cabinet, reactor and rectifier transformer.
当选用低阻抗整流变压器时，全套设备由控制柜、电抗器、整流变压器三大部件组成。
It is described that the sensitivity of impedance back up protection for transformer wind short circuit is very low.
介绍了后备阻抗保护对变压器绕组短路灵敏度很低。
The operation ways of auto-transformer for AT power supply are expounded. Its performance and characteristics are analyzed. It is introduced that how to get to the lower impedance.
阐述了AT供电用自耦变压器的运行方式，分析了AT用自耦变压器的性能、特点及能达到低阻抗的原因及措施。
That is, one more capacity grade can be increased on the base of impedance-matched balance traction transformer SF2-QY.
也就是说，在阻抗匹配平衡牵引变压器SF 2 - QY的基础上再提高一个容量等级。
The measurement method of reactive power in traction substation, which main transformer is impedance-matching balance one, is discussed.
讨论了采用阻抗匹配平衡变压器的牵引变电所的无功计量方法。
The measurement method of reactive power in traction substation, which main transformer is impedance-matching balance one, is discussed.
讨论了采用阻抗匹配平衡变压器的牵引变电所的无功计量方法。
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