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A high impedance coupling device will limit loading. 一个高阻抗的耦合装置将限制负载。
The extinguish of arc of single-phase grounding fault is analyzed with high frequency theory and fundamental frequency theory. 本文分析了小电流接地系统弧光接地过电压的基本原理及高频熄弧理论和工频熄弧理论。
In the high impedance state,output voltage is unaltered. 在高阻抗状态，输出电压不改变。
For broken overhead covered conductors the fault reveal high impedance faults（HIF）to the distribution systems. 由于高阻抗人工故障试验不易实施，所以有必要发展一套可以模拟与分析高阻抗故障的元件与系统模型。
High impedance and EMI suppression effective over a wide frequency range. 在较宽的频率范围内有高阻抗及EMI抑制效果
However, in this system serious over voltage may occur due to arc grounding fault. 然而,在此系统中可能由于电弧接地故障而出现严重过电压。
The detection and location method of single-phase grounding fault based on fault indicator technology was introduced. 重点介绍了基于故障指示器技术的单相接地故障的检测和定位方法。
This choke must be large in value, and provides a relatively high impedance at audio frequencies. 这一扼流圈必须有足够大的容量，并能在音频内提供相对高的感抗。
Based on data fusion,a new method for singlephase grounding fault location of distribution feeders in networks with ungrounded neutral is proposed. 提出了基于模糊信息融合的中性点不接地系统单相接地故障定位的新方法及其实现。
This paper presents an up-to-date design of bioelectric preamplifier with low noise- high common-mode-rejection ratio (CMRR) and high impedance. 本文介绍一种利用负反馈原理由集成运算放大器构成的低噪声、高共模抑制比、高输入阻抚前置放大器。
DVM usually got an input impedance of 10 Mohm. There may be loading effect when measuring high impedance circuit. 数字式电压表通常有10兆欧的输入阻抗.;当测量高阻抗电路时，可能会有影响
The single-phase grounding fault frequently occurs in neutral ungrounded systems,the fault location must be found as soon as possible to avoid a phase-to-phase short circuit. 单相接地故障在小电流接地系统中出现的比较频繁,此时必须尽快地找到故障点以避免两相对地短路。
When choosing a card to switch high impedance voltage, make sure the card has a low offset current. 在选择切换高阻电压的开关卡时，请确保开关卡具有低偏移电流。
However, some unique geographical characters, such as fire grounding, bamboo grounding and treetop grounding, can cause single phase high-impedance grounding fault frequently. 然而，由火焰接地、毛竹接地或树梢接地等原因引起的单相高阻接地故障，由于电压降小、三相线间电压依然几乎对称，从而增加了高阻接地检测的难度。
A novel power conditioning circuit for flux compression generators (FCG) to drive high impedance loads is presented. 爆磁压缩发生器一般具有较低阻抗,在驱动较高阻抗负载时需要脉冲功率调制电路。
CM and C CM cause the same type of leakage and shunt errors in low current and high impedance circuits as seen earlier. 如前所述，Rcm和Ccm会在小电流和高阻电路中引起相同类型的漏泄和分流误差。
A new scheme for the high impedance faults (HIF) detection in double-circuit lines was presented. 摘要提出了一种适用于双回线路接地故障的继电保护新方法。
Shielding is required because high impedance circuitry is susceptible to pickup of spurious radiated noise. 由于高阻电路容易拾取杂散的辐射噪声，所以需要采取屏蔽措施。
In Perterson coil system, it can be decreased that the capacitor current through fault point and the over-voltage caused by the grounding fault, which is advantage for the extinguishments of electric arc. 中性点经消弧线圈接地后，有效减小了流过故障点的电容电流，减小了弧光接地过电压，有利于电弧熄灭。
Based on clustering FSVM and current injection method,a new method using two steps for single-phase grounding fault location of distribution feeders in networks with ungrounded neutral is proposed. 提出小电流接地系统实现单相接地故障定位的新方法。该方法应用基于聚类的FSVM和电流注入法分两步实现故障定位。