高電壓開關 的英文怎麼說
中文拼音 [gāodiànyākāiguān]
高電壓開關
英文
high voltage switch-
Breaker, refrigerator over - load protection relay, refrigerant high pressure switch, air circulator thermal switch, fuse, overheat protector, alarm
無熔絲開關,壓縮機超載保護開關,冷媒高壓保護開關,超溫保護開關,水盤缺水保護開關,電磁開關,故障警告系統,警報器The functions of this automation system focus on five aspects : data acquisition 、 supervision and control 、 fault isolate and recovery 、 gis 、 data statistic and report. the design project takes the rcs - 9000 series 、 sd ? 9520 and sd - 9630, which is a new installation that can detect the operation state of the low - voltage current breaker, and send the state to the control room. the other new installation is sd - 9860, which is the monitor of the cable fault
設計方案中,在採用南瑞rcs - 9000系列、雙電公司sd - 9520裝置的同時,採用了新開發的sd - 9630塑殼開關運行狀態採集裝置,檢測塑殼開關的運行狀態,並將運行狀態傳回到集控中心(中間站) ;採用了新開發的sd - 9860電纜故障指示器,完成電纜故障的識別;集控中心的設計實現了整個小區配電自動化系統的集中通訊、實時監控、統計與管理功能;高、低壓開關實現了自動控制、狀態檢測和無功補償等。The products is of high water hydrophobe device usedin suitable and has the characteristics of aging resistance, resistance, tracking resistance, and corrosive resistance. it can withstand high bent load, strong impact force fn12 - 12 series indoor use high voltage load switch fn12 - 12 and fn12 - 12r is of three phases indoor use ac high voltage load switch for breaking and making the circuit of 50hz, 12kv system under rated loading
Fn12 - 12和fn12 - 12r組合電器是額定電壓12kv額定頻率50hz的三相高壓開關設備用於分合負荷電流閉環電流空載變壓器和電纜充電電流關合短路電流配裝接地開關的負荷開關,可以承受短路電流Although more costly, this provides the highest standoff voltage switch
這種方法盡管成本較高,但是能夠提供最高的關態電壓開關。High - low voltage switch box, dynamic trunk line, mcc, ats, walkie - talkie, broadcasting, fire alarming system, telephone system, etc
電氣:高低壓開關箱動力干線mcc ats對講廣播火警電話等系統。The soft switching, phase - shifted pwm and bi - directional dc - dc converter hang together, depress circuit switching loss and noise effectively, which provide condition to increase switch frequency, efficiency and reduce size and weight for the converter ; at the same time, it is proved the converter can achieve zvs in larger load variation, and the converter has the virtue of structure compact, voltage and current stress small such as ordinary hard switch converter
該變換器把軟開關技術和相移控制pwm技術以及雙向dc - dc變換器技術有機結合在一起,有效地降低了電路的開關損耗和開關噪聲,為變換器裝置提高開關頻率、效率以及降低尺寸及重量提供了良好的條件;同時,能拓寬零電壓開關的范圍,使變換器在較寬的負載變化范圍內都能實現軟開關。Compressor overload protector, over - current protector, high and low pressure switch, temperature protection
壓縮機過載保護器,超電流保護器,高低壓開關,溫度保護For high voltage switching ( above 500v ), the glass tube is evacuated
對于高電壓開關(高於500v ) ,玻璃管則是被抽空的。According to the mechanism characteristics of the ac motor, with zero - voltage switching technology, the pdm converter mathematical models both the pwm and rectangular wave control mode are given in this paper. and the voltage and current harmonic analysis and the simulation waveforms of the output voltage, current and power are also described respectively
根據交流電機在恆轉矩區和恆功率區的特性,結合零電壓開關技術,分別給出相應的脈寬調制控制( pwm )方式和方波控制方式下的高頻交流脈沖密度調制變頻器的數學模型,電壓和電流的諧波分析以及輸出電壓、電流和功率的模擬波形。" soft switching " is zero voltage switching or zero current switching, which the voltage ( or current ) of the switch varies by law of sine or quasi sine, the switch is on when its voltage reaches zero ( or switch is off when its current reaches zero ) by resonance. it makes switch loss is zero, so it can increase the operating frequency and raise power density, minimize the size of transformer and inductor
「軟開關」是指零電壓開關或零電流開關,它是利用諧振原理,使開關變換器的開關管電壓(或電流)按正弦(或準正弦)規律變化,當電壓過零時,使器件開通(或電流自然過零時,使器件關斷) ,實現開關損耗為零,從而提高開關頻率,減小變壓器、電感的體積。Among them, phase shifted ( ps ) full bridge ( fb ) zero - voltage - switched ( zvs ) pulse - width - modulated ( pwm ) dc / dc converter has strong competitive power in big power capacity fields. but it has some limitations such as smaller load range with zvs and larger circulation energy. the ps - fb - zvs - pwm dc / dc converter with a saturable inductor utilizes saturable inductor s critical saturable current characteristic and storage energy, to enlarge load range with zvs and improve output efficiency under light load
其中,移相控制零電壓開關脈寬調制dc / dc全橋變換器在大容量領域很有競爭力,但它具有實現零電壓開關負載范圍小,循環能量大等限制,帶飽和電感的移相控制零電壓開關全橋變換器利用飽和電感的臨界飽和電流特性及儲能,來擴大零電壓開關( zvs )的負載范圍,提高輕載時的輸出效率,具有非常重要的研究價值。The zero - voltage - switching ( zvs ) pwm hybrid full - bridge three - level ( h - fb tl ) converter can operate in both three - level mode and two - level mode, the output rectified voltage is close to the output voltage over the entire input voltage range, thus the output filter can be reduced significantly, leading to high power density and fast dynamic response. so the zvs pwm h - fb tl converter is very attractive for the applications such as fuel cells, photovoltaic cells, and telecom power supplies, where the voltage varies in a wide range
零電壓開關復合式全橋三電平( zero - voltage - switchingpwmhybridfull - bridgethree - level , zvspwmh - fbtl )變換器可以工作在三電平模式和兩電平模式,在很寬的輸入電壓范圍內,輸出整流電壓都接近輸出電壓,從而可以減小輸出濾波器,因此可以提高變換器的功率密度和改善動態性能。Zhejiang yueqing linyi electric appliance co., ltd is a large enterprise specialized in stainless steel boxes, box type electric substation and high and low pressure switch cabinet etc
浙江樂清林一電器有限公司是一家專業生產不銹鋼箱、箱式變電站、高低壓開關櫃等成套產品的大型企業。The realization of shift - phase pwm control with zero - voltage and high speed, large power drive circuit is emphatically solved
重點解決了零電壓開關的移相pwm控制策略的實現、高速大功率驅動電路的實現等幾個難點問題。The thesis analyses the effect of phase shift control and the utilization of the transformers primary sides saturable inductor to the transformers secondary sides voltage duty cycle, and basic on the buck converter s small signal ac model the converter s model is deserved, and infers control to output transfer function
論文通過分析移相控制方式和高頻變壓器一次側的飽和電感對高頻變壓器二次側方波電壓占空比的影響,在buck變換器小型號模型的基礎上建立了帶飽和電感的移相控制零電壓開關全橋變換器的小信號模型,推導出控制到輸出的小信號傳遞函數。This technology is also applied on intelligent apparatus and high / low voltage switch device
該技術還適用於智能電器以及高低壓開關櫃等裝置。Manufacturing reliable and quality power supply device. high and low voltage switch equipment and automatic control system etc
為用戶提供高可靠、高品質的電源裝置、高低壓開關成套設Most of our major products already gained patent, and were certified by iso9001 : 2000. our fangwushan dope all kind of high low voltage switch metal - oxide arrester and electric power tool all produced under country and industry standard strictly. most of them reached iec international standard, meanwhile we also can satisfy clients special request. coming from all directions, serving all quarters
我公司生產的防污閃塗料水性鐵銹轉化底漆,送變電防冰塗料,各種類型的高低壓開關金屬氧化物避雷器和電力金具,嚴格執行國家及行業標準,有的產品達到了iec國際標準要求,深受廣大電力用戶的好評。Defeat the corrugated pipe that the company produces to widely apply to various valves in shenyang, press the switch at last, each field such as the instrument and apparatus, spaceflight aviation, petrochemical industry, electric electron, auto industry, heating power project, nuclear power station, hot network project of solar energy, the products are sell to countries such as south korea, india, and america and europe, etc., is sold to 20 odd provinces and cities at home, have obtained praise of the domestic and international every profession and trade
沈陽勝公司生產的波紋管廣泛地應用於各種閥門、高低壓開關、儀器儀表、航天航空、石油化工、電力電子、汽車工業、熱力工程、核電站、太陽能熱網工程等各個領域,產品銷往韓國、印度、及歐美等國家,在國內銷往二十幾個省市,並獲得了國內外各行業的贊譽。The project included the train station, tunnel, platform, and parking lot. the main works are briefly described as follows : e power
電氣: 22 . 8kv ,干線全為低壓無毒電纜,設備容量48 . 5mva高低壓開關箱共310隻分享友人