高電容電弧 的英文怎麼說
中文拼音 [gāodiànróngdiànhú]
高電容電弧
英文
condensed arc-
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。By improving surface condition of parts and one shot seal - off clean room grade, using ultrasonic vapor phase cleaning process, the inner parts of vacuum interrupter get cleaner. movable particles have been diminished by automatic current ageing, power frequency hi - voltage ageing and dynamic high current ageing. as the dielectric strength of clearance in vacuum interrupter improved, the probability of re - ignition in test drops evidently
通過提高零件表面加工質量，改善一次封排間的真空衛生條件、制定合理的超聲波氣相清洗工藝提高管內潔凈度，採用自動電流老煉、超高壓工頻老煉、大電流動態老煉等工藝進一步消除真空滅弧室內活動性微粒，可提高真空滅弧室真空間隙介質強度，使真空開關投切電容器組的重燃率大大降低，並通過實驗驗證真空開關投切電容器組的重燃率在製造工藝改進後由原來的10 . 7 %降低至1 . 3 % 。In the 3 ~ 35kv power supply system of our country, the large part is the not solidly earthed neutral system. when the single - phase earthed phenomena happens in this system, this electric power network can run with failure. and in this way the operated cost can reduce greadty. and at the same time the power supply systemic dependability can be improved. but when the single - phase earthed current is large, this electric power system can engender easily arc earthed overvoltage and interphase short circuit by this means
在我國10 35kv供電系統中，主要為中性點非直接接地系統，這種系統在發生單相接地時，電網仍可帶故障運行，這樣可以大大降低運行成本，提高供電系統的可靠性，但這種供電方式在單相接地電容電流較大時容易產生弧光接地過電壓和相間短路，給供電設備造成了極大的危害。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。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。Answer : ( 1 ) prevent to splatter the metal is caused burnable with fire ; ( 2 ) avoid the harm of electric arc ray radiation to human body ; ( 3 ) prevent certain and harmful gas toxic ; ( 4 ) soldering when pressure vessel, should prevent to solder produce explosion ; ( 5 ) when headroom works, want to take safety belt and safety helmet ; ( 6 ) the attention prevents accident getting an electric shock
答： （ 1 ）防止飛濺金屬造成灼傷和火災； （ 2 ）防止電弧光輻射對人體的危害； （ 3 ）防止某些有害氣體中毒； （ 4 ）在焊接壓力容器時，要防止焊接發生爆炸； （ 5 ）高空作業時，要帶安全帶和安全帽； （ 6 ）注重避免觸電事故。分享友人