飛弧電壓 的英文怎麼說
中文拼音 [fēihúdiànyā]
飛弧電壓
英文
arc-over voltage-
Guide on methods for evaluating potential for room flashover
車間飛弧電壓的評定方法指南Transitional feature of the arc and metal droplet in the welding process with steam shielded arc is investigated by means of analysing the waveforms of welding voltage and current under different welding regimes and it is found that there are two types of arc process behavor ? " arc starting - arc blowing out - short - circuiting " and " arc - starting - short - circuiting ". under the condition of constant diameter of welding wire and its feeding speed, the arc process behavor can be changed by adjusting the inductance of welding circuit as well as the voltage of power supply. if arc process behaves as alternative process of " arc starting - arc blowing out - short - circuiting " with minimum time duration of arc blowing out and maximum frequency of short - circuit transition, the welding process will be stable with less spatter and smooth weld bead
通過分析不同焊接規范下的焊接電壓和電流的波形.研究了水蒸氣保護下電弧及熔滴過渡的特點，發現其電弧過程行為有「燃弧?熄弧?短路」和「燃弧?短路」兩種形式.在焊絲直徑和送絲速度一定的情況下，通過調節焊接迴路中的電感量和電源電壓，可以改變電弧的過程行為形式.若電弧過程呈「燃弧?熄弧?短路」交替進行，並且熄弧時間最短時，短路過渡頻率最高，在這種情況下，飛濺小，焊道成型好，焊接過程穩定It is a very high advancement to the development from two - pressure arc - quenching chamber and single - pressure arc - quenching chamber to the self - energy arc - quenching chamber now for arc - quenching theory of sf6 cb make use of the arc blocking effect, namely arc - self - energy, to increase sf6 gas pressure in the arc - quenching chamber and get the efficient blasting effect to extinguish the arc when the arc current is zero
Sf _ 6斷路器從雙壓式、單壓式發展到如今的自能式是斷路器滅弧原理的一個重大飛躍。自能式sf _ 6斷路器利用電弧阻塞效應即利用電弧本身的能量使滅弧室內sf _ 6氣體的壓力升高，在電弧過零時產生有效的氣吹而熄滅電弧。The fast development of power system has made it more and more imperative to measure transient parameters, such as over voltage test, trial engagement test of switches, reactors and transformers, harmonics elimination test of arc elimination coils and trial operation of high voltage transmission lines
隨著電力系統的飛速發展，對于暫態參數的測量需求越來越迫切，例如：過電壓試驗；開關、電抗器、變壓器投切試驗、消弧線圈消諧試驗、高壓線路的試投等。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