Study on the Single Phase-to-Grounding Fault Detection in 35 kV Networks with Isolated Neutral

1、

For an ungrounded neutral low voltage power system in mine, its insulance ( r), capacitance ( C) and leakage resistance ( R) to the ground are three important parameters in determining the zero sequence voltage.

对于中性点不接地的矿井低压电网，其对地绝缘电阻r，电容C和漏电电阻R，是决定零序电压的3个重要参数。

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2、

The Dividing Frequency Resonance and Damping Measure in Ungrounded Network& A Simulating Calculation of Networks by Means of EMTP

中性点不接地网络的分频谐振与消谐措施&用EMTP对网络的模拟计算

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3、

Diffusion capacity ( DLco) of 315 asbestos workers without obvious radiological pulmonary changes and 314 healthy workers without history of exposure to industrial dust as controls were measured by means of CO single breath technique.

本文采用一次呼吸CO法，测定了315名石棉工人和314名作为对照的不接尘健康工人的弥散量，并测定了通气功能。

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4、

Analysis of the Neutral, the low resistance grounding and arc suppression coil grounding through the advantages and disadvantages of three ways, using MATLAB simulation under different single phase grounding fault in the operation.

分析了中性点不接地、经小电阻接地和经消弧线圈接地三种方式的优缺点，用MATLAB对不同接地方式下单相接地故障时的运行情况进行了仿真。

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5、

An effective method for preventing high voltage fuse of Pt from breaking in 10~ 35? Kv isolated neutral system

10～35kV中性点不接地系统中防止PT高压熔断器熔断的方法

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6、

Study on Neutral Point Protection without Grounding for 220 kV Transformer

220kV不接地变压器中性点绝缘保护研究

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7、

This paper has derived calculating formulas of arbitrary two point faults in neutral non-grounded power system by bus impedance matrix. An example of calculation is carried out with IBM computer.

本文推导出用结点阻抗矩阵进行中性点不接地系统中任意两点异相接地故障计算公式，并编制程序在IBM机上调试通过，最后进行了算例分析。

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8、

96 30-day-old AA chickens were randomly divided into 5 groups. Chickens in Group 1 were not challenged with AIV;

将96只30日龄AIV阴性AA肉鸡随机均分为5组，第1组不接毒，不给药；

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9、

Plug BEC from ESC, then digital servo into this card for offline use.

不接电脑，插接电变的BEC，及数位伺服机，离线使用程式卡。

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10、

The DCS power grounding should be: when three-phase and four-wire system is adopted, the neutral wire should be grounded;

而采用单相电源时，若DCS与电力设备为公用接地，则DCS电源零线不接地；

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11、

In ungrounded systems, PT saturation result in ferroresonance is a appear frequently and work accident sort of inner overvoltage.

在中性点不接地电网中，由于电磁式电压互感器（以下简称PT）饱和而引起的铁磁谐振是出现最频繁、造成事故最多的一种内过电压。

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12、

At the first, the paper analyze the single phase fault and ferroresonance fault, these process are emulated by Matlab.

首先文章对中性点不接地系统发生单相接地以及弧光接地的过程进行分析，并用Matlab对这些过程进行仿真。

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13、

Digital Simulation Study and Analysis on Abnormity of Electromagnetic Potential Transformer in Isolated Neutral System

不接地系统中电磁式PT异常运行的数字仿真分析

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14、

The Determination of Grounded Fault on Branch Circuit of Power Network with non-grounded Neutral on the Basis of DSP

基于DSP的中性点不接地系统接地故障支路判别

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15、

Running as fast as his legs could carry him. Actaeon was soon out of breath4, feeling certain that he was to die. He dropped to the ground and made no further attempt to get up.

阿卡同拼命狂奔，很快就上气不接下气。感觉自己肯定会死去，他就一下躺在地上，不想再起来了。

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16、

Out of breath, I swung open the door and got a blast of cold air that instantly cooled me off.

我上气不接下气地把门打开,一股冷空气立刻使我凉了下来。

高考真题- 2015 四川阅读表达

17、

By mile 17, I became out of breath and the once injured ankle hurt badly ．

跑到17英里的时候,我上气不接下气,曾经受伤的脚踝也开始剧烈疼痛。

高考真题- 2018 北京阅读A

18、

I'm out of breath after climbing up all the stairs.

我爬完了这些楼梯后，上气不接下气。

词典精选例句

19、

Another, Somang Church, has hundreds of thousands of faithful, including South Korea's president, Lee Myung-bak.

另一个叫所望的教会有几十万名信徒，连韩国总统李明博也是其中之一。

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20、

In South Korea, President Obama and President Lee Myung-bak discussed a free trade agreement signed by their governments two years ago.

在韩国，奥巴马总统和李明博总统商讨两国政府于两年前所签定的自由贸易协议。

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