弧的觸發 的英文怎麼說
中文拼音 [húdechùfā]
弧的觸發
英文
striking an arc-
Improvement of phase modulation trigger circuit of type zx5 - 400 scr rectifying arc welder
400晶閘管整流弧焊機移相觸發電路的改進The silicon controlled trigger and it s auxiliary circuit could regulate simultaneously the controlling coil current of four series - parallel connected powers, so the purpose of making four powers output in step with was achieved, and the process of increasing progressively current after lighting arc and weakening current after going out arc was realized
利用可控硅觸發器及輔助電路可以同時調節串並聯在一起的四臺電源控制線圈的電流,達到四臺電源同步輸出的目的,並且實現了等離子弧噴塗引弧時電流遞增和熄弧時電流衰減的過程。Chapter one of the thesis introduces the vacuum structure, operation principle and electric arc characteristic of the vacuum killing arc room concisely, and retrospected the development of the vacuum killing arc room briefly, and indicated the research purpose and meaning of thesis at the same time. chapter two introduces the design process and manufacturing technology of the vacuum killing arc room possessing cup form horizontal magnetism touch head structure. electric magnetic field finite element, an analytical soft of ansoft company, and msc non - linear finite element, an analytical soft of marc of company, have been adopted to analyze the distribution state of the horizontal magnetic field between the touch heads, electric field intensity distribute state and temperature rise situation which the touch head produced
論文的第一章首先是對真空滅弧室的結構、工作原理和電弧特性進行了簡明的闡述,同時對真空滅弧室的發展做了一個簡要的回顧,並表明了本論文的研究目的和意義;第二章介紹了杯狀橫磁真空滅弧室的設計過程和製造工藝;採用ansoft公司電磁場有限元分析軟體和msc公司marc非線性有限元分析軟體分析了觸頭結構產生的橫向磁場在觸頭間的分佈狀況、電場強度分佈狀況以及溫升情況。Vibration - resisting electricity contact pressure meter is used for occasion by environment quake vibration excle in pulsaling lash by medium - resistant and suddenly unload ; usually it is make use of form a complete set by relevant eletric device ( such as relay and contact appliance and so on ). so realized attain auto - control post a letter ( give an alarm ) for pressure system by survey. compare with ordinary for a special model electricity contact pressure meter, zhe indicator ' s function by survey pressure more stabilize, more accurate, and powerful of resist eletric arc, and it is use for even more long life
耐振電接點壓力表,適用於環境劇烈振動場合,可耐介質的高強脈動沖擊及突然卸荷;通常該儀表經與相應的電氣器件(如繼電器及接觸器等)配套使用,即可對被測(控)壓力系統實現自動控制發信(報警)的目的,與普通專用型電接點壓力表相比,指針測壓性能更穩、準,且抗電弧強大,使用壽命更長。Abstract : through the analysis of the coordination characteristics between the switch and the fuses in combination, it is shown that the transfer current of combination can be decreased by reducing the prearcing time of fuses in the range of transfer current or by increasing the fuse - initiated opening time ( t0 ) of the switch. the ways to decrease the transfer current for present combinations are put forward
文摘:本文通過對組合電器中負荷開關與熔斷器之間的配合特性分析,認為減小熔斷器在轉移電流區域內的弧前時間或適當增加熔斷器觸發的負荷開關分閘時間t0 ,均可降低組合電器所需開斷的轉移電流值,並針對現有組合電器提出了減小轉移電流的具體方案。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。In this paper, the over voltage induced by re - ignition, rules of breakdown in vacuum contact clearance, factors which influence dielectric strength of clearance and characteristics of re - ignition when vacuum switchgear switch capacitor banks are analyzed. the conclusion is that the breakdown of clearance in vacuum interrupter is the direct cause which inducing re - ignition of vacuum circuit - breaker in capacitor banks ’ switch. particle breakdown is the essential reason to induce breakdown in clearance of vacuum interrupter, although mechanical characteristic of vacuum circuit - breaker is another factor
本文通過對真空開關投切電容器組重燃過電壓、真空觸頭間隙擊穿機理及影響真空間隙介質強度的因素、真空開關投切電容器組重燃現象特點進行分析研究發現,真空滅弧室斷口的真空間隙擊穿是導致真空斷路器投切電容器組重燃的直接原因,其次是真空斷路器機械性能的影響,而微粒擊穿是導致國產真空滅弧室真空間隙擊穿的根本原因。分享友人