grounding problems 中文意思是什麼
grounding problems
解釋
接地問題-
Furthermore, problems easy to make mistake are demonstrated, for instance, grounding resistance of large grounding grid is impedance
研究論證了被一些研究者錯誤理解的關于大型地網接地電阻是阻抗、四極法及其倒相法測量結果為阻抗等問題。 -
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。 -
In connection with the situation of application of hook type earthing resistance meter in the transmission division of yichang power supply bureau, taking account of the principle and the environmental requirement of measurement, the problems in application were proposed and analyzed as well. according to the different grounding structure of lightning protection for overhead transmission lines, the proper measuring method was suggested
針對宜昌供電局輸電分局鉤式接地電阻計使用情況，通過運用該表接地測量原理和適用條件，分析並提出使用中存在的問題；對架空送電線路防雷接地構造差異情況，提出正確的測量方法。 -
It adopted after years of use proved to be totally reliable, professional design, transistors chassis grounding professional design, large transistors allow direct contact cooling unit and do not have to insert the middle of mica insulation film, thermal capacity increases promoting - - warming is the burning of the power amplifier transistors number one killer. professional design significantly improve the heat dissipation problems so as to enhance the reliability of the power amplifier
它採用了經過多年使用證實是完全可靠的一種專業設計，電晶體機殼接地的專業設計，讓放大電晶體直接接觸散熱片而中間不用加插絕緣用的雲母片，加促散熱能力? ?升溫是燒毀功放電晶體的頭號殺手，專業設計大大改善了散熱問題從而提高了功放的可靠性。 -
Firstly, the paper introduced the commonly hardware configure of microcomputer relaying and the function of every module of industry controlling computer std90386. secondly, the paper introduced several types busbarprotection which was commonly installed on electric power system and the characteristic of mv or lv system with low current grounding. based on it, the paper put forwards the theory of percentage - restraint differential relay. after that, in the discussing every problems of the relaying working the paper put the emphasis on the negative effect of the ct saturation and countermeasure
本文首先介紹了微機保護裝置的一般硬體配置以及作為裝置硬體平臺的std90386工控機各組件模板的功能，然後分析了目前電網系統裝設的母線保護的各種類型以及中、低壓小電流接地電網的特點，在此基礎上分析、介紹了作為本保護動作原理的「比率制動式差動保護」原理。 -
To solve these problems, the compensating method of neutral point grounding through peterson coil is commonly used in our country
為了解決這一問題，我國現在普遍採用中性點經消弧線圈接地的補償方式。 -
The paper analyses the necessity of the investment risk analysis of chinese petroleum enterprises in dint of the development about the same business in home and overseas and gives a new method - monte carlo simulation method through connecting with general theories of investment risk analysis and basing on analyzing the problems which lie in the investment risk analysis and management and by grounding on original evaluation guideline system of investment risk analysis and decision - making model. the merits are that the method not only embodies uncertainty of risk elements but also makes up the limitation rooted in underestimating influence extent about all of risk elements by com bining original break even analysis and sensitivity analysis. the method perfects deeply investment risk analysis system and improved the accurateness of investment risk analysis
本文結合石油企業投資風險分析在國內外的發展狀況，分析了我國石油企業進行投資風險分析研究的必要性，結合投資風險分析的一般理論，在分析我國石油企業目前投資風險分析與管理方面所存在的問題和我國石油企業原有的投資風險分析評價指標體系與決策模型的基礎上，根據我國石油企業實際情況，引入蒙特卡羅模擬方法，充分體現各風險因素的不確定性，使之與原有的盈虧平衡分析、敏感性分析相結合，以彌補原有石油企業投資風險分析決策模型對各風險因素的影響程度考慮不足的缺陷，進一步完善投資風險分析系統，增強石油企業投資風險分析的準確性，並將其應用於遼河油田冷家西部開發方案中。 -
Association with the situation of china, the solution is grounding the neuter point by peterson coil which will decrease the fault current and improve the human security. but it also brings two problems : first, the improper compensation will cause over voltage ; second, it ’ s hard to fault select
但是，中性點經消弧線圈接地后存在兩方面的問題:首先，消弧線圈調諧不當易產生諧振過電壓;其次，在中性點經消弧線圈接地系統中，發生單相接地時故障選線困難。 -
It is credited with the ability to solve communication problems in relationships. it is believed to be good for meditation, dream awareness and channeling ability. some smoky quartz owners claim that it is a protective and a grounding stone
聽說也有進口商是將白水晶經過鈷60放射線照射處理出來的，改變其內在分子的排列組合，進而導致微量的金屬反應，仍是業界頗能接受的種類。
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