無載開關 的英文怎麼說
中文拼音 [wúzǎikāiguān]
無載開關
英文
no load switch-
The most visible result is the wide array of u. s. - built defense equipment that is now in use or on order by the taiwan military. for air defense capability, the list includes e - 2t airborne early warning aircraft ; nike, hawk, and chaparral ground - based air defense systems ; the modified air defense system, a patriot missile system derivative ; and 150 f - 16 fighters
讓我再說一句已經不算是秘密的話：有關三不的聲明並不代表美國有了新的或不同的政策美國對臺政策並無改變，有關這一點，公開記錄上記載的很清楚。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 most important conclusion reached in this study is that cracking begins regardless of the initial loading nucleation time.
這個研究最重要的結論是：裂紋的開始與初始載荷成核的時間無關。Then a vsc controller using on - off valve and two potentiometers are designed for cushioning control system. it can realize the balanced, no shock, no reversing cushioning. experiments under different air pressure, load mass are carried out, and the results prove that the vsc controller can be used in pneumatic cushioning
第五章首先介紹了變結構控制的原理和應用發展情況，然後針對本實驗系統設計了一個使用開關閥和端位位移傳感器的變結構控制方案，實現緩沖過程的平穩無沖擊和無回彈要求，並在不同氣源壓力、不同負載質量下分析了控制性能的變化，實驗結果證明緩沖控制採用變結構控制是可行的，並具有很強的魯棒性。In the simulation and analysis on culvert construction, the method of foundation - pit excavation layer by layer and step by step was used, i. e. the method that makes the surface of excavation have no stress, when the elements were excavated gradually in period of construction. at this process, the state of soil is unloading, the laws of stress field and displacement field with the depth of excavation were studied. based on the obtained stress field and displacement field after the excavation was completed, by using of the newly increased filling - elements " gravity and the grinding force, the simulation of the construction of body of the culvert and foundation - pit ' s filling layer by layer had also been done in this dissertation
用有限元法模擬分析涵洞基坑開挖時，採用分層、分步模擬開挖過程的方法，即將計算域內單元分層「挖去」 ，使開挖表面成為無應力表面的方法，分析土體在卸載狀態時的應力場和位移場隨開挖深度的變化規律；在洞體施工后，回填土體時，據開挖完成時的應力場、位移場，通過逐級增加計算域內的單元數目，施加每級新增加單元的自重荷載，利用有限元法模擬基坑及上覆土體分層填築的施工過程，這不僅反映土體處于再加載應力狀態時，填土受力及變形的一般規律，而且這種將地基? ?涵洞? ?土體作為一個統一整體進行模擬的方法，量化了三者之間的相互作用關系。The tap - changer is made with solid state relay as its working mechanism and controlled by microprocessor. this switch has totally cancelled the mechanical drive organization, by the microprocessor according to the voltage of second side microprocessor decide the working condition of solid state rely, high regulation speed, need not transition resistor, rush current is low. operating frequently ; there is no electric arc to produce, can put in the fuel tank of the voltage transformer directly ; the structure is simple, the fabrication cost is low, benefit and use widely among the voltages transformer of distribution
其中的有載調壓分接開關，它是一種完全由固態繼電器作為分接開關執行機構，由單片機控制的有載自動調壓的變壓器分接開關。該開關完全取消了機械傳動機構，由單片機根據變壓器二次側電壓的高低，決定與變壓器各分接頭聯接的固態繼電器的工作狀態。調節速度快，改變分接頭時不需過渡電阻，沖擊電流小，可頻繁操作；無電弧產生，可以直接放在變壓器油箱中；結構簡單，造價低，便於在配電變壓器中推廣使用。Specification for radio teleswitches for tariff and load control
費率和負載控制用無線電遠程開關規范Its rated voltage class includes 40. 5kv, 72. 5kv and 126kv. this product is applied for connecting and disconnecting of hv lines at no load, electrical isolation between inspected hv busbar, circuit breaker and other electrical equipment, and live hv lines, as well as connecting and disconnecting of small capacitance current and inductance current. the new - type hv disconnecting switch can effectively prevent such common problems as overheat in galvanic circle, misoperation and
該系列產品為三相交流50hz的戶外高壓電器設備，額定電壓等級有33kv 40 . 5kv 72 . 5kv和126kv ，供高壓線路在無負載情況下進行開合，以及對被檢修高壓母線斷路器等電氣設備與帶電的高壓線路進行電氣隔離之用，也可用於開合小的電容或電感電流，並可按用戶要求加裝接地開關。Its rated voltage class includes 40. 5kv, 72. 5kv and 126kv. this product is applied for connecting and disconnecting of hv lines at no load, electrical isolation between inspected hv busbar, circuit breaker and other electrical equipment, and live hv lines, as well as connecting and disconnecting of small capacitance current and inductance current. the new - type hv disconnecting switch can effectively prevent such common problems as overheat in galvanic circle, misoperation and part rusting
該系列產品為三相交流50hz的戶外高壓電器設備，額定電壓等級有33kv 40 . 5kv 72 . 5kv和126kv ，供高壓線路在無負載情況下進行開合，以及對被檢修高壓母線斷路器等電氣設備與帶電的高壓線路進行電氣隔離之用，也可用於開合小的電容或電感電流，並可按用戶要求加裝接地開關。A current - doubler - rectifier ( cdr ) zvs pwm ( half - bridge ) three - level converter is proposed in this paper. zvs can be achieved for all the switches in a wide load range with the use of the energy stored in the output filter inductances. the output rectifier diodes commutate naturally without voltage oscillation and voltage spike
針對傳統（半橋）三電平直流變換器的一些不足，本文提出一種倍流整流方式pwm零電壓開關三電平直流變換器，可以使開關管在全負載范圍內實現零電壓開關，副邊整流二極體無電壓尖峰，無占空比丟失。The “ gw9 - 12 ” type of outdoor high voltage isolator switch is the high voltage switch ewuip ment of single phase ac 50hz, the product is suitable for power system sithrated 10kv to make or break power supply under circumstances of with voltage and nomload
12型戶外高壓職責離開關是單相交流50hz高壓開關設備，用於10kv的電力系統中，作為有電壓無負載的情況下接通或分斷電源使用。This paper simulates and analyses the torque pulsation because of the modulation frequency and speed variation under ambipolar pulse width modulation ; the influence of snubber circuit, dead time effects, and modulation frequency to igbt pwm inverterbridge is taken into account, too
本文對雙極性調制的無刷直流電動機模擬，分析了轉速和調制頻率對轉矩影響；並綜合考慮緩沖電路、控制死區及載波頻率對pwm逆變電路中igbt開關損耗的影響。In this paper, associated with the key problem of 550kv sf6 high voltage circuit breaker which is used in gis of three gorges project, the mathematical models of static electrical field and one - dimensioned and two - dimensioned gas flow field during the overall breaking process in arc chamber of circuit breaker are developed. on the basis of gas discharge theory, the criteria to judge the interruption success is determined. through the combination of one - dimensioned and two - dimensioned gas flow field software, the problem that the primary two - dimensioned gas flow field software ca n ' t calculate the hot gas flow field has been effectively solved
本文結合長江三峽550kvgis中sf6斷路器的科技攻關項目，建立了斷路器開斷過程中滅弧室內靜電場、一維氣流場、二維氣流場的數學模型；根據氣體放電的基礎理論選定了衡量斷路器能否成功開斷的標準，並通過一維和二維氣流場的有機結合，有效地解決了原二維氣流場計算軟體無法計算有載開斷的難題，具有較強的工程實用性。The study shows that this control approach can overcome those shortages of the methods which are adopted to control voltage and reactive power in substation nowadays, it can hold the voltage level in the regular bound and maintain the balance of reactive power in substation to the greatest extent, and it have the ability to seek the best solution. adopting this methods, the switching times of loaded taps and capacitors can be decreased efficiently and advance the running life - span of the transformer and capacitors and improve the economy benefits. this control approach is a advanced way ii and it is worth to study more and utilize
利用模糊神經網路對較好地實現對變電站的電壓、無功自動控制，能克服了目前在變電站電壓無功控制中普遍運用的分區方法存在的不足之處，不但可保持變電站電壓在合格的范圍內，盡量維持無功功率平衡，而且具有較好的尋優能力，有效減少變壓器有載調壓開關的切換次數和電容器組的投切次數，提高了變壓器和電容器的運行壽命，提高了經濟效益，是一種值得進一步探索和運用的較為先進的方法。The voltage is manually regulated by non - load machine switch, which is apt to be burnt. as a result, frequent fixing is inevitable ; moreover, these methods of controlling cannot meet the needs of processing certain work pieces
電壓調節通過人工轉換無載分接開關機械觸點實現，造成無載分接開關容易燒壞，維修頻繁，並且溫度波動大，有時不能滿足某些工件的加工要求。In the approach, non - load machine switch is replaced by scr controlled by mpu to regulate the temperature. this control precision is greatly improved, and at the same time parameters can be automatically stored and displayed during the manufacturing process, it also included some other auxiliary controlling functions, such as over - temperature alarm, work piece input or output reminding, etc. the fuzzy pid control algorithm consists of fuzzy control and digital pid adjustment
針對鹽浴變壓器只能進行無載分接、有級調節的問題，本方案採取在變壓器原邊串接晶閘管的方法，將手動轉換的溫度控制，即無載分接開關機械觸點調節電壓改為單片機自動控制晶閘管的導通，將手動控制溫度改為模糊pid控制，從而提高了控制精度，降低了工人勞動強度。On - load tap - changer of transformer can work under load, transfer quickly, change one class voltage about 3 - 6 ms each time ; switch can be operated by hand or electrically - driven and distant place operate while being electronic too, easy to realize automatic management ; transfer and keep relatively heavy range is generally more than 15 % ; switch and voltage transformer structure are more complicate than others, make man - hour and material increase, the cost is relatively high
變壓器的有載調壓能帶負載調壓，調壓速度快，每調換一級電壓約3 6s ；開關可手動、電動操作，也能遠方電動操作，便於實現自動化管理；調壓范圍較大，一般為15以上；開關和變壓器結構比無勵磁調壓的復雜，製造工時和材料增多，成本較高。The second, the realization of the zvs has no concerned with the attribute of load. with the load of light or full, even the resistance or inductor load, the chopper can ensure that the main - switches will realize the zvs switching
其次，實現零電壓軟開關的條件與負載的性質和程度沒有關系，無論是電阻性負載還是大電感負載，無論是輕載還是滿載，都可以實現功率器件的零電壓開通和關斷。The contactless hall effect - based measuring principle gives the pressure switch extremely good repeatability and longevity, even with extremely high load change frequencies. the adjusting screws allow the switching points of the magswitch
符合無觸點霍耳效應測量原理使得這種壓力開關即使在極高負載變化頻率條件下也具有卓越的可重復性和壽命。The contactless measuring method based on the hall effect combines excellent switching accuracy with high stability, even under high load alternations
基於霍爾效應的無觸點測量方法結合了極高的開關精度和即使在高負載變化下也具有的高穩定性。分享友人