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- The harmonic wave of current, when single phase grounded fault happened, can’t be eliminated by mounting Petersen-coil.The damage of arc-grounding overvoltage appeared. 而在单相接地的残余电流中含有较大的高次谐波,是加装消弧线圈也无法消除的,这使得弧光接地过电压的危害凸显出来。
- TAI Neng-ling,YIN Xiang-gen.Single-phase grounded fault protection schemes of generator stator based on orthonormal wavelet.Automation of Electric Power Systems,2001,25(1):34-37. [7]邰能灵;尹项根.;正交小波在发电机定子单相接地保护中的应用[J]
- After the neutral point is grounded through Peterson coil, it can decrease 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,有效地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。
- 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。
- 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。
- 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。
- She grounded her pupils well in arithmetic. 她给自己的学生打下良好的算术基础。
- Our ship grounded in shallow water/on a sandbank. 我们的船在浅水中[在沙滩上]搁浅。
- 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。
- The fox went to ground under a rocky escarpment. 狐狸钻进了石崖下面的洞里。
- 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。
- The boat grounded on a sand bank. 船只搁浅在沙洲上。
- The ground was covered with ferns. 地面上长满了羊齿植物。
- My argument was grounded on my own experience. 我的论点有我自己的经验作为根据。
- The pilot was grounded for 3 days. 该飞行员被禁飞三天。
- He lifted a pail of water from the ground. 他把一桶水从地上提了起来。
- The plane was grounded by fog yesterday. 昨天那架飞机因雾停飞。
- Rachel who died last week was still above ground. 雷切尔上星期去世,现在还没安葬。
- The ship grounded in shallow water. 那条船在浅水中搁浅。
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- 深远海浮式风电平台 - deep-sea floating wind power platform
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