neutral-point 中文意思是什麼
neutral-point
解釋
中性點-
The selection of neutral - point earthing ways of the hydrogenerator of left - bank power station in the three gorges project should be related to one - point earthing protection of the stator of its generator within one hundred percent framework
三峽工程左岸電站水輪發電機中性點接地方式的選擇應和發電機100 %范圍定子一點接地保護相關聯。 -
Through analysising the characteristics of the power system with floating neutral point deeply, the paper puts forward a new plan of single - phase to ground fault line selection on the base of s ' s signal injecton method and gives the hardware and software design. in this design, the high speed sampling and data processing is carried out through using dsp processor ; the large electrice current is drived through the application of a high - performance audio power amplifier and transformer ; the communication between host computer and detectors is realized through rs485 bus technology ; the difference multilevel frequency - selected amplifier is designed and the feeble signal of space is sampled on the base of the theory of magnetic induction ; the interface between dsp and exterior chip and rs485 interface logical is designed through using fpga ; the using of lcd module and keyboard interfacing chip makes the interface between human and machine ; the programme of host computer and detectors is designed through using blocking design method
在本設計中，採用高速的dsp處理器，實現了對故障特徵信息的高速採集與處理;採用大功率的功放晶元與變壓器配合的方法，實現了大電流信號的驅動輸出;採用485總線技術，組建了裝置主機與多探測器之間的主從式通訊網路，實現了多干擾條件下裝置主機與多探測器的可靠通訊;設計了差分式多級選頻放大電路，採用磁感應的方法實現了對空間微弱信號的接收;利用fpga技術，實現了控制器與多外設的介面及數字信號的串並轉換;採用了先進的lcd液晶顯示模塊及鍵盤介面晶元，設計了人機信息交互的介面;採用了模塊化的軟體設計方法，開發了裝置主機及探測器的軟體程序。 -
On the grounding manners of neutral point in distribution networks
關于配電網中性點接地方式的探討 -
Choice of grounding method of neutral point in high voltage distributing net
高壓配電網中性點接地方式的選擇 -
Therefore, the conclusion is valuable to engineering apply, and could be consulted for the selection of the neutral point grounding mode of the civic 10kv network
得出的這些結論具有相當的工程實用價值，為大城市10kv電網中性點接地方式的選擇提供了一定的參考依據。 -
The problem about neutral - point - grounding mode is an all - around technical problem which associated with not only power system reliability ， insulation coordination ， electromagnetic interference ， but assault safety 。 in china ， the neutral grounding modes of the 10kv net involved of none grounding, grounding by arc suppressing coils, resistance grounding or reactance grounding in the past 。 with the development of civic power network ， low resistance grounding mode was used to restrain the over voltage, particularly in guangzhou, shanghai ， beijing ， and zhuhai etc. it was reported that the over - voltage level of low resistance grounding mode is lower than that of arc suppressing coil mode, but the operation carried out the other way 。 at substations in guangzhou and shanghai it was found that the low resistance grounding mode is successful 。 but in some areas ， such as zhuhai ， substations grounding with low resistance revealed some problems ， including power supply reliability rapidly dropping ， transmitting line often tripping ； and person safety being threatened 。 so interiorly the grounding mode selection of the 10kv network was disputed, which mainly focused on the fault form of 10kv net grounding, the apply area of suppressing arcing coil grounding mode, power supply reliability level of the two modes, person safety, communication interfere and the workload of maintenance
爭議點主要是在10kv電網接地故障的形式、消弧線圈接地的應用范圍、兩種運行方式供電可靠性的高低、人身安全、通訊干擾和運行維護工作量等諸多方面。 11 17本論文就是針對以電纜為主的城區10kv電網中性點接地方式的選擇問題進行研究。論文首先對10kv電網的中性點運行各種方式進行分析，比較各方式的特點，然後以重慶儲奇門變電站10kv電網的實際參數來建立數值計算模型，在考慮了電網接地電容電流變化、中性點電阻取值大小、接地點接地電阻值變化等多種影響因素的情況下，對中性點經消弧線圈接地和經小電阻接地方式下電網的過電壓水平和接地點短路電流大小進行了數值計算，其計算結果與電科院所作現場試驗進行了比較。 -
Moreover, the epiipc functions properly and stably under well due to the reasonable electrical circuit design and very strong anti - jamming design. this design successfully solves the directionally power current leakage fault action and reject action, and makes it working in both neutral point non - grounded and grounded through resistors or coils under compensate systems and over compensate systems
本次研製的保護器較好地解決了功率方向型漏電的誤動作和拒動作問題，使得它既能較好地運行在中性點不接地的系統中，又能用在中性點經消弧線圈接地的欠補償系統中，同時試用於過補償系統中。 -
The resistance products have various types, and are for different lightning arrester, restrictive transformer, capacitor, electric machinery, vacuum switch, transformer neutral point sealed electrical instruments, cable, and railway line overvoltage
該電阻片具有多種規格型號，用於組裝不同使用場所的避雷器，限制變壓器、電容器、電機、真空開關、變壓器中性點、全封閉電器、電纜、鐵道線路的過電壓。 -
The calculation of the selection of the neutral - point earthing - transformer of the generator shows that the selection of its parameters should be matched with one - point earthing protection of the stator of its generator
對發電機中性點接地變壓器的選型計算表明，其參數選擇必須與發電機定子一點接地保護相配合。 -
This is done through polite discussion and negotiation, in an attempt to develop a consensus regarding proper application of policies and guidelines such as neutral point of view
這個過程通過有禮貌地討論和談判來完成，人們根據諸如中性的觀點這樣的方針與指引來嘗試達成共識。 -
This paper uses " virtual neutral point method " to measure the " zero crossing ", then the soft deal " zero crossing " to get the six key position to commutate
本文採用虛擬中點的方法來識別反電勢過零點，然後對過零點進行處理得到無刷電機換向的六個關鍵位置。 -
The chip jk3ce that is one of micro - controllers in motorola 68hc08 family is used as control unit in this system. the zero crossing point of the back emf can be obtained by comparing the terminal voltage with the virtual neutral point, then using the software of the system can figure out the commutation period. the electronic commutation replaces the mechanical commutation in this way
本系統採用的控制晶元為motorola系列單片機中的jk3ce ，反電勢過零點可以通過比較電機端電壓和虛擬中點電壓來得到，將過零點信號送往單片機捕捉埠後由系統軟體來確定換相時刻，這樣就可以由電子換向裝置替代機械換相裝置，有利於提高系統運行的可靠性，並降低了系統維護的費用。 -
Analysis on the neutral point structure and its characteristics of hydro - generating units for ertan hydropower station
二灘水電站水輪發電機中性點結構及特性分析 -
It has been proved by test results that this protective method is suitable not only for neutral point insulated system, but also for neutral point grounded system through arc suppression coil
實驗結果表明：該保護原理不僅適用於中性點絕緣的供電系統，而且適用於中性點經消弧線圈接地的供電系統，提高了選擇性漏電的動作可靠性，保證了動作值的穩定性。 -
3. neutral point is fetched out ; each phase of three phases could be running separately. it is excellent product for precisely dynamic compensate of system
3 .中性點引出結構，三相可各相單獨運行，為系統動態精確補償提供了優良產品 -
It was shown that the position of neutral point of pile shaft varied with the consolidation of surrounding soil and the magnitude of pile - head load
利用該模型分析了大面積堆載下，在樁頂作用大小不同的豎向荷載以及樁側土達到不同固結度時再施加樁頂荷載情況下，樁身摩阻力的發展變化規律。 -
After the neutral point is grounded through perterson coil, it can decrease the capacitor current through fault point and the over - voltage caused by the grounding fault, which is advantage for the extinguishments of electric arc
中性點經消弧線圈接地后，有效減小了流過故障點的電容電流，減小了弧光接地過電壓，有利於電弧熄滅。 -
After the neutral point is grounded through peterson coil, it can decrease the capacitor current through fault point and the over - voltage caused by the grounding fault, which is advantage for the extinguishments of electric arc
中性點經消弧線圈接地后，有效地減小了流過故障點的電容電流，減小了弧光接地過電壓，有利於電弧熄滅。 -
With respect to good faith, no amount of emphasized assertions that you are editing according to wikipedia : neutral point of view while engaging in biased editing will serve to paper over the nature of your activities
關于善意這個話題，當你捲入有偏向的編輯時，不過于強調自己的編輯符合中性的觀點多少會遮掩你行動的本質。 -
The technique of back emf induction in bldc motor is analyzed, the " virtual neutral point " method and the technique of " 3 - step " start are introduced
主要分析了反電動勢感應方法，並闡述了虛擬中點法和三段式起動技術。
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