雷電過電壓 的英文怎麼說
中文拼音 [léidiànguòdiànyā]
雷電過電壓
英文
lightning surge- 雷 : 1. (雲層放電時發出的響聲) thunder 2. (軍事上用的爆炸武器) mine 3. (姓氏) a surname
- 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...
- 過 : 過Ⅰ動詞[口語] (超越) go beyond the limit; undue; excessiveⅡ名詞(姓氏) a surname
- 壓 : 壓構詞成分。
- 雷電 : thunder and lightning雷電計 [氣象學] ceraunograph
- 電壓 : voltage; electric tension; electric voltage
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This article through installs the reactor with air core in the transformer substation transmission, to control the thunder electric wave amplitude and steepness in the transformer substation ; through over voltage on - line monitoring device testing, inquire into lightning protection of the reactor with air core
本文通過在變電站的輸電線路的出口處加裝空心電抗器,對通過輸電線路侵入變電站的雷電波的幅值和陡度進行抑制;並通過安裝過電壓在線監測裝置進行測試的方法,初步探討了空心電抗器防雷的作用。High voltage shunt capacitor installation is comp - rised of capacitor cabinets or steel racks capacitor, special fuses for capacitor overload protection, capaci - tor discharge device, air - cored reactor which is applied to restrain surge current and high frequency harmonic, zno arrester without gaps for overvoltage - limiting and high voltage vacuum switch etc. capacitor cabinet is
高壓並聯電容器成套裝置主要由電容器櫃或鋼架電容器電容器過負荷保護專用熔斷器放電裝置專用放電線圈或電壓互感器,抑制涌流限制高次諧波的空芯電抗器和限制過電壓的無間隙氧化鋅避雷器及高壓真空開關The resistance products have various types, and are for different lightning arrester, restrictive transformer, capacitor, electric machinery, vacuum switch, transformer neutral point sealed electrical instruments, cable, and railway line overvoltage
該電阻片具有多種規格型號,用於組裝不同使用場所的避雷器,限制變壓器、電容器、電機、真空開關、變壓器中性點、全封閉電器、電纜、鐵道線路的過電壓。The shorter the interval between the two pulses of the current wave, the fewer strikes the varistors can endure. at the same time, the dc ljima changes fast - slowly - fast alone with the experiment continuing. microstructual disorder, such as variations in the height of the electrostatic potential at grain boundaries and electrode protrusions into the zinc oxide varistors, causes substantial temperature rise in a microscopic region around the defect and is the source for failure
雷電的多重閃擊對雷電過電壓保護器件的影響更加嚴重,本文首次採用不同間歇時間雙脈沖電流沖擊對氧化鋅電阻進行了多次試驗,試驗表明:氧化鋅電阻在雙脈沖電流沖擊下更容易出現老化破壞現象,間歇時間越短,電阻能耐受的沖擊次數越少;此外,直流u _ ( 1ma )值隨沖擊次數的增加具有快一慢一快的下降過程。When the electric field arising from the piling up of charges reaches a certain breakdown value, lightning discharges take place between clouds or between cloud and the earth s surface
當電荷累積而形成的電壓過大時,雲與雲之間或雲與地之間就會出現閃電放電現象,放電通道周圍的空氣會急劇膨脹而產生隆隆雷聲。When the electric field arising from the piling up of charges reaches a certain breakdown value, lightning discharges take place between clouds or between cloud and the earths surface. the explosive expansion of the surrounding air produces the rolling sound of thunder
當電荷累積而形成的電壓過大時,雲與雲之間或雲與地之間就會出現閃電放電現象,放電通道周圍的空氣會急劇膨脹而產生隆隆雷聲。When the electric field arising from the piling up of charges reaches a certain breakdown value, lightning discharges take place between clouds or between cloud and the earth s surface. the explosive expansion of the surrounding air produces the rolling sound of thunder
當電荷累積而形成的電壓過大時,雲與雲之間或雲與地之間就會出現閃電放電現象,放電通道周圍的空氣會急劇膨脹而產生隆隆雷聲。Measuring of lightning parameters is the base work of lightning research. it is very important for researching the lightning characteristics, analyzing the accident of lightning, identifying the responsibility of lightning strike outage accident and discussing the strategies of lightning protection. it also can provide precise original data of atmosphere over - voltage for designing insulation co - ordination
雷電流參數的測量是進行雷電研究的基礎工作,對于研究雷電特性、分析雷害事故、鑒定雷擊跳閘事故責任、探討防雷對策及為絕緣配合設計提供精確的大氣過電壓原始數據均具有十分重要的意義。High voltage shunt capacitor installation is comprised of capacitor cabinets or steel racks capacitor, spe - cial fuses for capacitor overload protection, capacitor discharge device, air - cored reactor which is applied to restrain surge current and high freq. harmonic, zno arrester without gaps for overvolage - limiting and high voltage vacuum switch etc. capacitor cabinet is made of highquality cold - rolling steel plate
高壓並聯電容器成套裝置主要由電容器櫃或鋼架電容器電容器過負荷保護專用熔斷器放電裝置抑制涌流限制高次諧波的空芯電抗器和限制過電壓的無間隙氧化鋅避雷器及高壓真空開關等設備組成。Lead the team to do the research on electro - magnetic transient overvoltage calculation and insulation coordination of power system, lightning overvoltage calculation of substations and transmission lines, protection, operation and test of arresters, overvoltage limiter and other lightning protection equipment
帶領團隊從事電力系統電磁暫態過電壓計算及系統絕緣配合研究,變電站和輸電線路雷電過電壓計算及防護技術研究,避雷器及過電壓限制器等防雷保護設備的運行技術和試驗技術研究等。In these mathematic models, the essential vedables are propulsion motor ' s input voltage, input currefit and outpllt rotate rate and output torque. with these variables, the transient process of torpedo ' s electrical counterrotating propulsion system is studied both in quality and in quantity by computing its mathematic models
在這些數學模型中,以推進電機的輸入電壓、輸入電流、輸出轉矩和輸出轉速等為基本分析變量,對魚雷電動力推進系統的暫態過程進行定性定量的分析。Obtained by emtp program and the egm, this paper studies on lightning protection performance on 500kv double circuit transmission line the distributed parameter model of tower is built when analyzing the back stroking lightning protection performance for double circuit line, it can truly reflect the spreading course of lightning current on the tower, furthermore, considering the randomness of working voltage ' s phase when lightning strokes the top tower and supposing the probability of lightning appearing arbitrary phase in a cycle of ac is equal, this paper brings forward the statistical method to calculate the rate of back stroking on double circuit line
本文利用emtp程序、擊距法對500kv同桿雙回線路的耐雷性能進行了研究。在分析同桿雙回線路的反擊耐雷性能時,建立了桿塔的分佈參數計算模型,此模型可以真實地反映雷電流在桿塔上的傳播過程。並針對雷擊塔頂時,導線運行電壓相位角的隨機性,本文假定雷擊出現于交流一周期的任一角度區間內的概率相等,提出了利用統計法計算同桿雙回線路的反擊跳閘率。Schneider electric launchs new fixed spd - st series product in april 2005. the new product can be used in tt and tn system
電涌保護器的作用主要是限制電力系統中的雷擊過電壓和部分的操作過電壓。Familiar on - line monitoring device for overvoltage just monitor inner overvoltage, but the device introduced in the paper can monitor lighting impulse overvoltage and inner overvoltage in lokv distribution system. with the characteristics of overvoltage in the lokv distribution network, the principle of on - line device for overvoltage monitoring is introduced. divider, coaxial line, trigger, signal processing, data acquisition, acquisition control and waveform analysis software is included in the device. when the device operate in the system, overvoltage is transferred to coaxial line by divider. if the
通常的過電壓監測裝置只能監測一些內過電壓,而本裝置設計目的是能夠同時監測雷電過電壓和內過電壓。本文結合10kv配電系統的過電壓特點,提出了10kv配電網過電壓的在線監測裝置的基本原理,並研製成功了實用的在線監測裝置。該裝置包括分壓器、同軸電纜、觸發電路、信號處理、數據採集、控制和分析軟體。With the demonstration of 35kv line of youxian substation, it built a numeral value calculation model of on - line data of each pole. in terms of many factors, it studied on how to improve lightning withstand level, especially on how to use moa economically and reasonably, and on the synthetic measures to decrease the lightning tripping outrage
在考慮眾多影響因素的基礎上,對雷擊35kv線路時雷電過電壓進行數值計算,通過大量的數值模擬計算,研究如何提高其耐雷水平,特別是研究線路型避雷器經濟合理的使用,以及降低雷擊跳閘率的綜合處理方法。Familiar automatic recording device for overvoltage can just monitor inner overvoltage, but the device introduced in the paper can real time record lighting impulse overvoltage and inner overvoltage together in 10kv distribution system. with the characteristics of overvoltage in the 10kv distribution network, the principle of realtime recording device for overvoltage is introduced by author, and design and develop applied realtime and automatic recording device for overvoltage first
通常的過電壓自動記錄裝置采樣頻率不高,采樣周期短,大多隻能監測內過電壓,而本裝置研究的目的是能夠同時監測雷電過電壓和內過電壓。作者結合10kv配電系統的過電壓特點,提出了10kv配電網過電壓實時自動記錄裝置的基本原理,設計並研製成功了實時監測大氣過電壓和內過電壓的監測裝置。Varistors for use in electronic equipment part 3 : blank detail specification for lightning surge protective with fault - indication assessment level e
電子設備用壓敏電阻器.第3部分:空白詳細規范.防雷指示型過電壓保護器.評定水平eDetail specifications of electronic and element device for lightning surge protective device with fault - indication of type mys4 mys5 mys6 mys8 assessment level e
電子元器件詳細規范. mys4 mys5 mys6 mys8 .防雷指示型過電壓保護器.評定水平eTransformer neutral point overvoltage relaying protection main includs nod gap and arrestor protection. in this paper, principle of parameter choice and different function of above - mentioned protection are analysed
摘要變壓器中性點過電壓保護裝置主要有棒間隙保護和避雷器保護兩種,文中分析了這兩種保護裝置的不同作用和參數選擇的原則。A number of standards committees have addressed lightning and overvoltage conditions that appear on power lines
許多標準制定機構在其標準中都有關于雷電及電源線上過電壓的描述。分享友人