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- In Perterson coil system, it can be decreased that 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(diǎn)經(jīng)消弧線(xiàn)圈接地后,有效減小了流過(guò)故障點(diǎn)的電容電流,減小了弧光接地過(guò)電壓,有利于電弧熄滅。
- Fault current and discharging current of capacitor would give more current strength to the thyristor.The transient temperature changed by the current strength is analyzed through Cauer model. 故障電流和電容器放電電流疊加使晶閘管閥體承受巨大的電流應力,建立晶閘管閥熱阻抗模型,分析了暫態(tài)溫升變化。
- 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(diǎn)經(jīng)消弧線(xiàn)圈接地后,有效地減小了流過(guò)故障點(diǎn)的電容電流,減小了弧光接地過(guò)電壓,有利于電弧熄滅。
- A system in which one or more neutral points are connected to earth through reactance which approximately compensate the capacitive component of a single-phase-to-earth fault current. 一個(gè)或多個(gè)中性點(diǎn)通過(guò)具有感抗的器件接地系統。這些器件在單相對短路時(shí)能大體上補償線(xiàn)路的容性效應。
- Moreover,it is the basis of constructing a new non communication protection through absolutely utilizing the fault information which is comprised in transient component of fault current or voltage. 高壓輸電線(xiàn)路發(fā)生故障后的暫態(tài)電壓或電流分量中包含比工頻分量更多的故障信息,充分利用這一信息是構成具有絕對選擇性單端無(wú)通信保護的前提。
- A system whose neutral point(s) is (are) earthed through impedances to limit earth fault currents. 系統中至少有一個(gè)中性點(diǎn)通過(guò)具有阻抗的器件接地以限制接地故障短路電流系統。
- SHJ-IV fault indicator installed on the wire, used to direct the flow of fault current devices. IV故障指示器安裝在電線(xiàn)上,用于指示故障電流流通的裝置。
- Aimed at the shortcomings of coalface passing through fault as low speed, low efficiency and low-quality coal and so on, a new technique was suggested. 摘要針對采煤工作面過(guò)斷層速度慢、效率低且影響煤質(zhì)等缺點(diǎn),提出工作面快速無(wú)矸石過(guò)斷層清潔開(kāi)采技術(shù)。
- By reason of its high reliability, the resonant-type fault current limiter is suitable for EHV power network. 諧振型限流器具有高可靠性等優(yōu)點(diǎn),適用于超高壓電網(wǎng)。
- A type for AC fault currents and pulsating DC fault currents. 用于交流和直流脈動(dòng)故障電流。
- Combined with engineering cases, the mechanism of inrush through fault which is water-inconductive in initial geological condition, has been studied. 結合工程實(shí)例分析了原始地質(zhì)條件下的不導水斷層在采動(dòng)影響下透水并最終導致突水事故發(fā)生的作用機理。
- Abstract:A control system of the initial fault current angle in shortcircuit test is proposed. 摘要:介紹了一種用于短路試驗的合閘角控制系統設計方案。
- When connecting sources to switching cards, install protective devices to limit fault current and voltage to the card. 在將信號源連接至開(kāi)關(guān)卡時(shí),請安裝保護裝置,限制傳輸至開(kāi)關(guān)卡的故障電流和電壓。
- In this paper, SSMES with fault current limiting function for substation applications is proposed. 文中研究了應用于變電站的具有故障限流功能的SSMES。
- For the distributed capacitance of the network is the main cause of the fault current, it can be compensated and reduced by installing arc suppression coil(ASC). 電網(wǎng)對地分布電容的存在是接地點(diǎn)產(chǎn)生故障電流的主要原因,在電網(wǎng)的中性點(diǎn)與大地之間加裝消弧線(xiàn)圈,可使容性電流得到補償,從而使接地點(diǎn)的電流減小。
- Resistive high temperature superconducting fault current limiters (HTSFCL) utilize S-N transition of superconductor to limit the short-circuit current. 電阻型高溫超導限流器(HTSFCL)利用超導體的超導態(tài)-正常態(tài)轉變來(lái)限制短路電流,無(wú)需短路故障檢測電路,具有體積小、重量輕的優(yōu)點(diǎn)。
- The resonance fault current limiter (RFCL) is a practical way to solve the problem of the bulk fault current on the EHV. 諧振型限流器的電容器因故障電流引起過(guò)電壓,傳統過(guò)電壓保護技術(shù)不適合限流器的系統工況。
- To evaluate the performance of the superconducting fault current limiter(SFCL),the PSCAD analysis has been executed on a... 通過(guò)PSCAD軟件對超導故障限流器的運行特性進(jìn)行仿真分析,證明超導故障限流器在電力系統中應用的意義與前景。
- They cleaved a path through the wilderness. 他們在荒原中開(kāi)辟出一條路。
- I was paging through a magazine when he came in. 他進(jìn)來(lái)時(shí)我在翻閱一本雜志。