電容性線圈 的英文怎麼說
中文拼音 [diànróngxìngxiànjuān]
電容性線圈
英文
slab winding- 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...
- 性 : Ⅰ名詞1 (性格) nature; character; disposition 2 (性能; 性質) property; quality 3 (性別) sex ...
- 線 : 名詞1 (用絲、棉、金屬等製成的細長的東西) thread; string; wire 2 [數學] (一個點任意移動所構成的...
- 圈 : 圈名詞1. (養豬羊等牲畜的建築) pen; fold; sty 2. (姓氏) a surname
- 電容 : electric capacity; capacitance; capacity
- 線圈 : [電學] coil
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The verify experiment proves that its ratio and phase characteristics are much better than ordinary ones and the precision is enough for measure use. zero - flux current transformer can ’ t obtain absolute zero flux because residuary flux, so when the secondary turns is too small it will not satisfying. to improve the precision further, proposes a method to compensate zero - flux current transformer using capacitance parallel connected coil and deduces it
為了進一步抵消剩餘磁通,提高互感器的精度,提出了一種並聯電容線圈補償零磁通的方法,並進行了理論推導,設計了基於該方法的100匝電流互感器,通過校驗證明它可以改善零磁通電流互感器的比差和角差特性,提高互感器的精度,將電流互感器的二次匝數由普通互感器的幾千匝降到了100匝,提高了測量微小電流的能力。According to the quickly adjustable characteristic of the peterson coil grounding system, this dissertation proposes a new control strategy. when the system is in operation, the strategy can limit the series resonance over - voltage by using the off - resonance method. when fault occurs, the strategy can conveniently suppressing arc by rapidly adjusting the inductance value of the peterson coil to the point, which the resonance with grounding capacitance of the power network is occurred
依據可控硅控制消弧線圈接地系統的快速可控性,一改傳統的電網正常運行時調節消弧線圈接近於全補償的預調諧方法,提出正常運行時採用脫諧方法抑制串聯諧振過電壓;故障時立即調節消弧線圈電感量達到與對地電容諧振,以利熄弧的新型調節原理和方法。New designed auto tracing arc eliminating device based on this technique contents more technology, which has sample circuit, wide tuning scope, quick response and low noise. this paper firstly introduces neutral grounding histroy. by analyzing the syntony grounding theory, the transient and stable process of one - phase grounding fault, the threaten to secure run of power system and the importance of exact compensation for capacitive current are cognized
論文中首先介紹了中性點接地方式的發展過程,通過對諧振接地原理和單相接地故障的暫態、穩態分析,認識到接地故障對系統安全運行的危害,通過消弧線圈對接地電容電流的迅速準確補償是減小故障危害的最主要手段。The problem about neutral - point - grounding mode is an all - around technical problem which associated with not only power system reliability , insulation coordination , electromagnetic interference , but assault safety 。 in china , the neutral grounding modes of the 10kv net involved of none grounding, grounding by arc suppressing coils, resistance grounding or reactance grounding in the past 。 with the development of civic power network , low resistance grounding mode was used to restrain the over voltage, particularly in guangzhou, shanghai , beijing , and zhuhai etc. it was reported that the over - voltage level of low resistance grounding mode is lower than that of arc suppressing coil mode, but the operation carried out the other way 。 at substations in guangzhou and shanghai it was found that the low resistance grounding mode is successful 。 but in some areas , such as zhuhai , substations grounding with low resistance revealed some problems , including power supply reliability rapidly dropping , transmitting line often tripping ; and person safety being threatened 。 so interiorly the grounding mode selection of the 10kv network was disputed, which mainly focused on the fault form of 10kv net grounding, the apply area of suppressing arcing coil grounding mode, power supply reliability level of the two modes, person safety, communication interfere and the workload of maintenance
爭議點主要是在10kv電網接地故障的形式、消弧線圈接地的應用范圍、兩種運行方式供電可靠性的高低、人身安全、通訊干擾和運行維護工作量等諸多方面。 11 17本論文就是針對以電纜為主的城區10kv電網中性點接地方式的選擇問題進行研究。論文首先對10kv電網的中性點運行各種方式進行分析,比較各方式的特點,然後以重慶儲奇門變電站10kv電網的實際參數來建立數值計算模型,在考慮了電網接地電容電流變化、中性點電阻取值大小、接地點接地電阻值變化等多種影響因素的情況下,對中性點經消弧線圈接地和經小電阻接地方式下電網的過電壓水平和接地點短路電流大小進行了數值計算,其計算結果與電科院所作現場試驗進行了比較。The subject of this thesis is to study ironless moving coil linear permanent magnet synchronous motor and the major works in this thesis are summarized as follows : 1 ) two analytical formulas are derived by concentrated current method and distributed current method to determine the magnetic field due to pm, based on the current model of pm. besides, two method ( magnetic charge method and solution by laplace equation method ) are also introduced with comparing their advantages and disadvantages. then the effects of the motor parameters on the flux distribution are discussed
本文對空芯動圈式直線同步電動機進行了深入細致的研究,內容包括: ( 1 )採用電流模型推導出兩種計算永磁磁極二維氣隙磁場的解析公式(集中電流法、分佈電流法) ,同時介紹了兩種永磁電機氣隙磁場計算方法(磁荷法,直接求解拉氏方程法) ,分析各種方法的優缺點,討論電機參數對氣隙磁密的影響; ( 2 )介紹了單層同心繞組的布置方式,根據安培定律推導出空芯動圈式直線永磁同步電動機的靜推力計算公式,分析靜態力?位移特性; ( 3 )建立空芯動圈式直線永磁同步電動機動態模擬模型,模擬不同驅動方式下電動機起動、穩態運行時電磁力、速度、位移的變化情況。Combined with researches on propagation characteristics, the micro - current sensor for on - line pd monitoring is developed and the effects of coil number, stray capacitance and loading resistance on pass - band and sensitivity are also studied
同時,結合傳播特性,研究了局部放電在線監測寬帶微電流傳感器,並就線圈匝數、雜散電容和負載電阻等對傳感器通頻帶、靈敏度等性能參數的影響進行了分析。Three parallel - parallel type cttfcs is studied and compared in this paper. the performance of the cttfc with coupled inductor is similar to that with sharing freewheeling diode while coupling coefficient is one, and similar to that with sharing output capcitor while coupling coefficient is less than one and the converter working ccm
揭示了耦合電感並?並型雙管正激組合變換器與其餘兩種並?並型組合變換器的關系:耦合系數為1時,具有與共用續流管組合變換器相類似的特性;耦合系數小於1且耦合線圈電流連續時,具有與共用輸出濾波容組合變換器相一致的特性。Because ac losses of high temperature superconducting ( hts ) tapes and coils have direct affects on the stability of hts apparatus, the investigation of ac losses of hts tapes and coils has always been one of the most important research branches of hts application
由於高溫超導帶材及線圈的交流損耗直接關繫到高溫超導裝置的運行成本及穩定性,所以,對高溫超導帶材及線圈交流損耗的研究,一直高溫超導電力應用研究的最重要內容之一。After the neutral point is grounded through perterson 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
中性點經消弧線圈接地后,有效減小了流過故障點的電容電流,減小了弧光接地過電壓,有利於電弧熄滅。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
中性點經消弧線圈接地后,有效地減小了流過故障點的電容電流,減小了弧光接地過電壓,有利於電弧熄滅。In this paper, the research was made to solute these problems. the peterson coil compensation system has been designed which can measure capacitor current and damp degree ; a fault selection method of distribution network which was put forward that based on ftu
本課題就這兩方面的問題進行了深入研究,設計了一種消弧線圈自動補償裝置,該裝置可測量系統對地電容電流和阻尼率,具有響應快、準確性高的優點;同時提出了一種基於ftu的配電網接地選線方法。Ganfa has over 50 years experience of designing and manufacturing and has many items of patent techninque. the synchronous generators and permanent magnet generators which are manufactured with advanced technology and excellent machining equipement, will be able to meet the requirement of different technical condition which matched with various type turbines. ganfa has manufactured the generators of 0. 1 to 20mw in capacity which have been put into operation at present and owns the capability to manufacture the following generators : the capacity per unit up to 180mw, the stator outer diameter of generator up to 9, 000mm, the speed of vertical type generator up to 750r min, and thespeed of horizontal type generator up to 1, 500r min, both the b - grade and f - grade insulation class, the terminal voltage can up to 13. 8kv. ganfa manufactured 34, 500kw water turbine generator sets for the donghewan power station, yongchang, gansu, china which is located in 2. 868. 5m height above sea level, and has successfully solved the difficult problems such as plateau corona - shielding. ganfa is equipped with the generator test station and insulation material laboratory which are advanced test facilites and testing means to make each item electrical performance of products meet designing requirements from purchasing to delivering
公司具有50年的設計製造經驗,擁有多項專利技術,生產的同步發電機永磁機技術工藝先進,製造精良,能滿足與各式水輪機配套的不同技術條件要求。目前公司已製造投產的發電機容量范圍為0 . 120mw ,具備生產單擊容量50mw的能力,發電機機座號最大可達9000mm ,立式機最高轉速750r min ,臥式機最高轉速達1500r min ,絕緣等級有b級和f級,圈式線圈最高電壓達13 . 8kv ,公司製造的甘肅永昌東河水電站34500kw水輪發電機組,海拔為2868 . 5m ,成功解決了高原防暈等難題。公司擁有電機試驗站絕緣材料試驗室等先進的實驗室設施和測試手段,使產品從原材料進產,到成品出產的各項電器性能測試均能滿足設計要求。In recent years, with the large - scale reconstruction of city power system, the scale of power system is continuously expanding, and the power supply network is becoming larger and larger. in addition, the enormous use of cables in city power system increases the current through the grounded capacitor. these lead to more and more instantaneously grounding faults unable to eliminate naturally
近年來,國家對城市電網的大規模改造,使得電網的規模不斷發展,配電網路越來越大,加上城網中大量使用電纜,使接地電容電流大大增加,越來越多的瞬間單相接地故障不能自動消除,為了解決這一問題,我國普遍採用中性點經消弧線圈接地的補償方式。According to the present actual underground power system which neutral point is grounded through arc suppression coil in many supper big shaft, the development history and present situation of synthetic protection system used in hv flameproof switchgear are reviewed, and on the basis of analyzing the problems existed in high voltage flameproof switchgear, the selective leakage protective method based on the detecting harmonic direction of zero sequence current as well as the value of zero sequence voltage is proposed in this paper, and at the same time, harmonics extracting schematic and transforming circuit are also designed
本文深入系統地研究了基於intel80c196kb單片機控制的6kv防爆開關綜合保護系統,主要內容如下:針對大型及特大型礦井供電系統中性點普遍採用消弧線圈接地方式的現狀,回顧了國內外礦用高壓防爆開關保護系統的發展歷史,分析了目前國內高壓饋電開關保護系統所存在的問題,提出了「基於零序電壓基波啟動,五次諧波功率方向比較」的選擇性漏電保護原理,設計了相應的五次諧波提取電路和功率方向鑒別電路。This testing system has many merits, such as to test one ignition coil in 30 seconds, to store the testing results and do spc statistic on it, to record the waveform of failure parameter and call it anytime which helps to improve the processing technique, to work well in the industrial environment with high compatibility of electromagnetic interference
系統具有以下特點:單個點火線圈的測試在30s時間內完成;能夠對測量結果進行存儲、列印和spc統計分析;實現故障參數波形記錄及回放功能,可用於離線分析及加工工藝的完善;系統具有良好的電磁兼容特性,能夠穩定工作于惡劣的工業環境。Any combination ( usually adjustable ) of coils, capacitors, or resistors inserted in a transmission line or amplifier circuit to improve its frequency response
任何一種由線圈、電容器或電阻組成的網路(通常是可調的) ,插入傳輸線或放大器電路中,用來改善頻率響應特性。分享友人