接地電阻表 的英文怎麼說
中文拼音 [jiēdediànzǔbiǎo]
接地電阻表
英文
earth resistance meter- 接 : Ⅰ動詞1 (靠近;接觸) come into contact with; come close to 2 (連接; 使連接) connect; join; put ...
- 電 : Ⅰ名詞1 (有電荷存在和電荷變化的現象) electricity 2 (電報) telegram; cable Ⅱ動詞1 (觸電) give...
- 阻 : 動詞(阻擋; 阻礙) block; hinder; impede; obstruct
- 表 : Ⅰ名詞1 (外面;外表) outside; surface; external 2 (中表親戚) the relationship between the child...
- 接地 : [電學] landing; body; ground connection; electrical grounding; grounding; earthing; earth; ground...
- 電阻 : (物質阻礙電流通過的性質) resistance; electric resistance (電路中兩點間在一定壓力下決定電流強度...
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It was shown that resistance of pore solution ( r ) and resistance of electrochemistry reaction ( ret ) increased with the prolongation of hydration ages but r decreased with the augment of coal stone. can indirectly reflect the hydration degree of cement pastes
研究結果表明,孔溶液電阻隨著水化齡期的延長而增大,但隨著煤矸石摻量的增大而減小;電化學反應電阻隨著水化齡期的延長而增大,且可以間接地反映水泥漿體的水化程度;分形維數值隨著水化齡期的延長而減小,但隨著煤矸石摻量的增大而增大。It creates the model of layer soil by using the cdegs software, analyses the resistance error which is measured by traditional three - poles way, measures the grounding grids resistance and soil resistance rate of hejin power plant, creates the electromagnetic model of layer soil and grounding grids model of hejin power plant, calculates the step voltage > touch voltage n voltage distribution of earth surface in fault of hejin power plant. in the end, it compares the measuring value and calculating value of grounding grids resistance in hejin power plant
本文利用cdegs軟體建立分層土壤接地模型,對傳統三極法測量接地電阻誤差進行分析;對河津電廠接地網接地電阻和土壤電阻率進行測量;建立河津電廠分層土壤電磁模型和接地網模型;計算河津電廠接地網電阻和事故狀態下跨步電壓、接觸電壓和地表電位分佈;最後對河津電廠接地網電阻實測值與計算值進行比較分析。The results show that the vertical grounding electrodes can effectively decrease grounding resistance, step and touch voltages of the grounding system and reduce the influence of seasonal factors on the grounding system
分析表明,增設垂直接地極能有效減低接地系統的接地電阻、減小發變電站的接觸電壓和跨步電壓、減小季節因素對地網安全性的影響。Earth resistance meters
接地電阻表Earth resistance meter
接地電阻表Applying relative arithmetic to all kinds of faults and calculating off - line, we can master time - distance relation chart for all kinds of faults. computation indicates : when transmission lines occur faults, the data window of protection algorithm consisting of prefault and postfault data at the same time has important significance. the following methods are useful to achieve the inverse time characteristic : calculating impedance by using flourier in a full cycle, calculating work voltage by using fault component, calculating the torque created by a phase comparator or a magnitude comparator
實際的計算表明:輸電線路發生故障后,用故障前後的數據同時充滿保護演算法的數據窗,對于快速切除近區故障具有很重要的意義;同時利用故障前後的數據,下述方法可以比較好地實現距離保護的反時限特性:直接用全周傅里葉演算法進行阻抗計算;採用工頻變化量阻抗繼電器進行工作電壓的計算;採用轉矩的思想進行轉矩的計算。In connection with the situation of application of hook type earthing resistance meter in the transmission division of yichang power supply bureau, taking account of the principle and the environmental requirement of measurement, the problems in application were proposed and analyzed as well. according to the different grounding structure of lightning protection for overhead transmission lines, the proper measuring method was suggested
針對宜昌供電局輸電分局鉤式接地電阻計使用情況,通過運用該表接地測量原理和適用條件,分析並提出使用中存在的問題;對架空送電線路防雷接地構造差異情況,提出正確的測量方法。Guide for measuring earth resistivity, ground impedance, and earth surface potentials of a ground system
接地系統的接地電阻率,接地阻抗及地表電位的測量指南Interconnection generates in 1994, when china union was founded. with the development of telecommunication industry, interconnection presents different states, at the beginning, it ’ s the problem of weak & delay signal because of the telegraphic network ’ s low quality, then it becomes the situation of connected but influent, by 2003, it badly deteriorated while both sides destroyed the cable, interdicted communications by people, so people focus on interconnection
互聯互通問題早期表現為因電信網本身質量問題而導致的網間信號不好、簡訊延時等;接著,發展為固網、移動網之間,本地網、 ip長途網之間不時出現的不通、不暢等問題;而在2002年、 2003年問題已經嚴重到互相砍斷傳輸電纜、人為阻斷網間通信等惡性事件接連發生。The phytic acid has the function of complexing with metal. it easily forms a protection film of single molecular on the metal surface to obscure the contact of oxygen with the metal and prevent magnesium alloy from corrosion in the process of electroplating
添加劑植酸與金屬配合后,易在金屬表面形成一層緻密的單分子保護膜,能有效地阻止氧氣與金屬基體接觸,從而可以防止鎂合金基體在電鍍過程中的腐蝕。It is shown that only the inversion incorporating topography, in which the topography is directly incorporated into the inversion algorithm, can effectively erase the topographic influence and correct the error in inversion result, obtaining the inverted model in agreement with subsurface geoelectrical structure
結果表明,只有將地形直接帶入反演演算法中,進行帶地形電阻率三維反演才能有效消除地形影響及其對反演結果的偏差,得到與地下電性結構相符的反演結果。分享友人