For switching capacitancesgroup overvoltage,vacuum circuit breaker refining technics requires strengthening,andchamber reignition probability might be confined in minimum extension.

為減小開斷電容器組過電壓的危害亚洲欧美自拍第一页，應(yīng)加強(qiáng)真空斷路器的老煉工藝在线播放免费人成人毛片乱码，將滅弧室的重?fù)舸└怕氏拗圃谧钚〉姆秶鷥?nèi)。

Yet, reignition overvoltage might do harm to transformer coils by cumulative effects for its surge steepness. The measures lies in setting parallel connection capacitance in practice working.

結(jié)果表明中文字幕乱码电影免费一二三区，盡管實(shí)際中切除空載變壓器過電壓的幅值并不是很高欧美一区二区人体，特別是帶負(fù)載變壓器的情況，但重燃過電壓的陡度較大黄色网站直接进大全，對變壓器繞組的縱絕緣有累積作用暖暖在线视频狼色，在實(shí)際工作中應(yīng)以并聯(lián)電容為基礎(chǔ)的限壓裝置九九视频只精品。

The analysis indicates that the combustion of base bleed charge is in the critical zone between extinguishment and reignition when the base bleed projectile is just out of the gun muzzle.

分析表明，在火炮發(fā)射條件下亚洲日韩色图16p页，底部排氣彈出膛口時亚洲女优黄视频，復(fù)合底排藥劑燃燒環(huán)境恰好處于永久熄滅／熄滅后再復(fù)燃的臨界狀態(tài)。

According to the phenomena of high-frequency reignition after the interruption ofthe line current by vacuum interrupter s,the auther analyses and discusses some factors thatinfluence the interrupting characteristics of the HF current of vacuum inlerrupters.

本文結(jié)合真空斷路器開斷工頻電流后所產(chǎn)生的高頻重燃現(xiàn)象免费一级特黄A毛大片看看，對影響真空斷路器高頻電流開斷特性的一些因素進(jìn)行了分析和探討三级A片视频。

On the base of practical transformer substation main connection, electric components and system circuit model are first formed in the paper; analyze vacuum arc characteristic and medium resume are analyzed, then, according to vacuum chamber physical process of switching AC arc, resume process are divided into three stages: sheath development, neutral particles diffusion and static characteristic, with that, calculating model of medium resume strength is erected and applied in the computing of vacuum circuit breaker interrupting transform overvoltage; In the paper, Saber software is used to simulate a whole switching process; As follows, overvoltage characteristic of vacuum circuit breaker switching no load and load transformers, kinds of influence factors are analyzed in detail; At last, vacuum circuit breaker switching capacitance group overvoltage formative causes and electrode refining for lessening reignition are discuss.

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The story master line character is loose clean middle-aged man Wang Ben, he has known unmarried mother the leaf (Mr. Wu plum decoration), Wang Ben the pursue is gentle and is powerful, is ambiguous and is courteous, charming has the festival, lets leaf reignition fire of passion which is absentminded.

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In the paper,vacuum circuit breaker switchingtransformers process is simulated with Saber software and parameters are analyzed Theresults indicate that overvoltage peak value of switching no load transformers is not muchhigh,especially for switching load transformers.Yet,reignition overvoltage might doharm to transformer coils by cumulative effects for its surge steepness.The measures liesin setting parallel connection capacitance in practice working.

本文利用Saber仿真軟件對真空斷路器切除變壓器的一個完整過程進(jìn)行了仿真計(jì)算日韩一级特级视频，并詳細(xì)分析了各種參數(shù)對過電壓的影響久久永久免费在线，結(jié)果表明，盡管實(shí)際中切除空載變壓器過電壓的幅值并不是很高欧美精选三区，特別是帶負(fù)載變壓器的情況超黄色毛片久国产，但重燃過電壓的陡度較大，對變壓器繞組的縱絕緣有累積作用gzdaqm.com，在實(shí)際工作中應(yīng)以并聯(lián)電容為基礎(chǔ)的限壓裝置色污污网站。

On the base of practical transformer substation main connection,electriccomponents and system circuit model are first formed in the paper;analyze vacuum arccharacteristic and medium resume are analyzed,then,according to vacuum chamberphysical process of switching AC arc,resume process are divided into three stages:sheathdevelopment,neutral particles diffusion and static characteristic,with that,calculatingmodel of medium resume strength is erected and applied in the computing of vacuumcircuit breaker interrupting transform overvoltage;In the paper,Saber software is used tosimulate a whole switching process;As follows,overvoltage characteristic of vacuumcircuit breaker switching no load and load transformers,kinds of influence factors areanalyzed in detail;At last,vacuum circuit breaker switching capacitance groupovervoltage formative causes and electrode refining for lessening reignition are discuss.

本文針對中低壓變電站的實(shí)際主接線建立各電氣元件及系統(tǒng)的電路模型；在真空電弧的特點(diǎn)及間隙的介質(zhì)恢復(fù)特性上欧美精品三区，依據(jù)真空斷路器滅弧室分?jǐn)嚯娀〉奈锢磉^程日韩欧美中文字幕二区不卡，將真空電弧熄滅后的恢復(fù)過程分為鞘層發(fā)展、中性粒子擴(kuò)散和靜態(tài)特性三個階段毛片无码在线看，建立了相應(yīng)的介質(zhì)恢復(fù)強(qiáng)度的計(jì)算模型，應(yīng)用到切除變壓器作過電壓的計(jì)算中喷水毛片一级；采用Saber仿真軟件模擬計(jì)算真空斷路器切除變壓器作過電壓亚洲网站精品；并分別對真空斷路器切除空載及負(fù)載變壓器作過電壓的特點(diǎn)與影響作過電壓的各種因素做了詳細(xì)的分析日韩欧美深夜精品福利视频；最后簡要分析了真空斷路器開斷電容器組過電壓的形成原因及為減少重燃的電極老煉措施。

On the base of practical transformer substation main connection,electriccomponents and system circuit model are first formed in the paper;analyze vacuum arccharacteristic and medium resume are analyzed,then,according to vacuum chamberphysical process of switching AC arc,resume process are divided into three stages:sheathdevelopment,neutral particles diffusion and static characteristic,with that,calculatingmodel of medium resume strength is erected and applied in the computing of vacuumcircuit breaker interrupting transform overvoltage;In the paper,Saber software is used tosimulate a whole switching process;As follows,overvoltage characteristic of vacuumcircuit breaker switching no load and load transformers,kinds of influence factors areanalyzed in detail;At last,vacuum circuit breaker switching capacitance groupovervoltage formative causes and electrode refining for lessening reignition are discuss.

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Fire-fighting foam is an aggregate of air-filled bubbles formed from aqueous solutions and has a lower density than that of flammable liquids. It is principally used to form a cohesive floating blanket over flammable and combustible liquids and prevents or extinguishes fire by excluding the air and cooling the fuel. It also prevents from reignition by suppressing formation of flammable vapors. Therefore, Fire-fighting foam can be used as a fire prevention, control, or exposure protection for flammable liquid fire hazards.

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