電氣與電子工程專業(yè)畢業(yè)論文中英文資料外文翻譯文獻(xiàn)變電站建設(shè)的一般要求

1、畢業(yè)設(shè)計(jì)（論文）中英文對(duì)照資料外文翻譯文獻(xiàn)電氣與電子工程學(xué)院（此文檔為word格式，下載后您可任意編輯修改?。┮?、外文翻譯是畢業(yè)設(shè)計(jì)（論文）的主要內(nèi)容之一，必須學(xué)生獨(dú)立完成。2、外文翻譯譯文內(nèi)容應(yīng)與學(xué)生的專業(yè)或畢業(yè)設(shè)計(jì)（論文）內(nèi)容相關(guān)，不得少于xxxx 印刷符號(hào)。3、外文翻譯譯文用a4紙打印，需包含中文翻譯和英文原文。4、年月日等的填寫，用阿拉伯?dāng)?shù)字書寫，要符合關(guān)于出版物上數(shù)字用法的試行規(guī)定, 如“2017年5月26日”。5、所有簽名必須手寫，不得打印。附件：外文資料翻譯譯文變電站建設(shè)的一般要求carpentier jvv國際電力與能源系統(tǒng)雜志sci，ei 2011年2月變電所在電源系統(tǒng)和

2、工業(yè)企業(yè)中至關(guān)重要。他們接收,轉(zhuǎn)換和輸送電 能,根據(jù)能源需求，變電站分為電壓為110-500kv的中央樞紐變電站；電 壓為110-220/6-10-35kv的主降壓變電站；110330/610kv區(qū)域變電站; 電壓為6-10kv的地方變電站；電壓為6-10/0.38-0.66kv的車間變電所。 在主要的降壓變電所中，電源轉(zhuǎn)化為110-220kv電壓，通常使用6-10kv 變電所（有時(shí)為35kv變電所）將電壓分配給企業(yè)和滿足某些高壓服務(wù)。中央樞紐變電站從電力系統(tǒng)接收能量,并通過電壓為110-220kv的 空中電纜和地下電纜線路分發(fā)（不包括或者包括部分變換）給不同區(qū)域。 中央樞紐變電站不同于主配電

3、變電站,它是一個(gè)更強(qiáng)大的電力設(shè)施，它的 電壓大部分在110-220kvo它可以簡化初級(jí)電壓、中級(jí)電壓或地區(qū)的開 關(guān)電路。中低級(jí)別變電站改造的能量來自6-10kv的電壓，它的二次側(cè)電 壓為 380/220kv 或 660/380kvo升壓變電站用于將電廠電機(jī)產(chǎn)生的電壓升高,從而有效地減少在遠(yuǎn) 距離輸電過程中的能量損失。變電站的能量轉(zhuǎn)換是用半導(dǎo)體整流器來變 頻，目的是將直流轉(zhuǎn)換成交流（有時(shí)相反）以及改變頻率。帶半導(dǎo)體整流器 的變電站最經(jīng)濟(jì)。6-10kv的變電站主要是配電變電站（有時(shí)為中央配電 變電站）o 110-220kv變電站出線根據(jù)6-10kv變電站的容量進(jìn)行分配。根據(jù)變電站的地理位置，電站設(shè)

4、備有露天的和室內(nèi)的。6-10rv變 電站的電纜主要是輸出線。在35-220kv變電站中，空中線路的排布架設(shè), 主要注重供電的可靠性和經(jīng)濟(jì)性。變電站依據(jù)大量塊積組織的和工業(yè)電氣行業(yè)編寫的程序集來搭建。 變電站中通常為無連續(xù)出勤值班人員操作的基本自動(dòng)信號(hào)設(shè)備。變電站 中的部分結(jié)構(gòu)應(yīng)當(dāng)采用薄型建造材料和由彎段組成的組件（板材、地 板等）。這些元件是在安裝區(qū)外面建造，然后在這個(gè)位置組裝的，這樣可 以有效的削減變電所建造成本。變電站基本電路的設(shè)計(jì)，是根據(jù)企業(yè)的供電系統(tǒng)特征選擇的。變電站 電壓的主接線，變壓器和輸出電纜線路,當(dāng)前導(dǎo)體的二次電壓，變電站安 裝的設(shè)備和元件等多種設(shè)備的組合耍非常合理。變電站的電

5、路設(shè)計(jì)耍爭 取切換裝置的最簡化，和數(shù)目的最少化。這樣的變電站更可靠、更經(jīng)濟(jì)。 電路簡化是采用自動(dòng)接入或自動(dòng)轉(zhuǎn)入儲(chǔ)備的方法，允許快速和無錯(cuò)誤的 自動(dòng)接入每一個(gè)元件和用電設(shè)備。當(dāng)設(shè)計(jì)工業(yè)用變電站時(shí)，下面的基本因素都要考慮在；1.優(yōu)先采用兩編組的單總線系統(tǒng),可以確保可靠和經(jīng)濟(jì)的供應(yīng)電力；2 配套建設(shè)和廣泛使用；3變電站使用自動(dòng)化設(shè)備并且支持遙測技術(shù)，如果變電站的設(shè)計(jì)并 不支持自動(dòng)化或遙測、線路要安全而且不允許添加設(shè)備，確保以后沒有 過度投資和返工；4使用簡單、便宜的裝置，有絕緣裝置的斷路器、斷路開關(guān)、過載 保護(hù)隔離器、保險(xiǎn)絲，預(yù)估計(jì)他們的交換容量，可考慮大幅度削減昂貴的 器件需要和臨界油、真空管、螺

6、線管和空氣開關(guān)的使用。變電站中開關(guān) 電路的使用，要采用合理的流程來裝配，允許它們同時(shí)斷開而不破壞斷開 連接的生產(chǎn)流程；變電站線路的架設(shè)過程中最重要的一點(diǎn)是要妥善安排與選擇轉(zhuǎn)換 器件（開關(guān)、隔離器、電流限制器、避雷器、高低壓熔斷器等），這決定了 變電站的用途、功能和意義。變電站是電力系統(tǒng)中不可缺少的重要組成部分，它擔(dān)負(fù)著電能轉(zhuǎn)換 和分配的任務(wù)，對(duì)電網(wǎng)的安全和經(jīng)濟(jì)運(yùn)行起著舉足輕重的作用，是聯(lián)系 發(fā)電廠和用戶的中間環(huán)節(jié)。隨著經(jīng)濟(jì)的發(fā)展，電網(wǎng)容量不斷擴(kuò)大，對(duì)電 網(wǎng)運(yùn)行的可靠性耍求也越來越高?？茖W(xué)技術(shù)的發(fā)展、智能化開關(guān),光電式 電流電壓互感器，一次運(yùn)行設(shè)備,在線狀態(tài)檢測，變電站運(yùn)行操作培訓(xùn)仿真 等高新技

7、術(shù)日趨成熟，以及光纖技術(shù)、計(jì)算機(jī)高速網(wǎng)絡(luò)在實(shí)時(shí)系統(tǒng)中的開 發(fā)應(yīng)用，勢必對(duì)現(xiàn)有的變電站自動(dòng)化技術(shù)產(chǎn)生深刻的影響,全數(shù)字化的變 電站自動(dòng)化系統(tǒng)成為發(fā)展的趨勢。電力系統(tǒng)是由生產(chǎn)、輸送、分配和消費(fèi)電能的各種電氣設(shè)備連接在 一起組成。由于電能無法大量儲(chǔ)存，必須保證用電和電能生產(chǎn)的平衡。 隨著科學(xué)技術(shù)的不斷進(jìn)步，我們國家的電力技術(shù)發(fā)展已經(jīng)達(dá)到一定的水 平。智能化開關(guān)，光電式電流電壓互感器,一次運(yùn)行設(shè)備在線狀態(tài)檢測，變 電站運(yùn)行操作培訓(xùn)仿真等高新技術(shù)日趨成熟，光纖技術(shù)、計(jì)算機(jī)高速網(wǎng)絡(luò) 在實(shí)時(shí)系統(tǒng)中的開發(fā)應(yīng)用，大大的提高了變電自動(dòng)化程度。我國變電站的設(shè)計(jì)開始向接線方案簡單方面趨近，近期國內(nèi)新建的 許多220

8、kv及110kv電壓等級(jí)的變電站，采用雙母線而不帶旁路母線主 接線。在gis的情況下，優(yōu)先采用單母線分段接線。終端變電站中，盡 量采用線路變壓器組接線等。大量采用新的技術(shù)，變電站電氣設(shè)備檔次 不斷提高，配電裝置也從傳統(tǒng)的形式走向無油化、真空開關(guān)、sf6開關(guān) 和機(jī)-電組合一體化的小型設(shè)備。近年來世界各國著名的高壓電氣設(shè)備 公司都相繼開發(fā)、研制了各種類型的145-550 kv戶外高壓和超高壓組 合電器，國內(nèi)一些高壓開關(guān)廠也已經(jīng)開始生產(chǎn)145 kv戶外緊湊型組合 電器。戶外插接式智能型組合電器是一種功能更完備的高壓和超高壓開 關(guān)系統(tǒng)，它內(nèi)含電氣一次、二次設(shè)備，以及相關(guān)聯(lián)的插接式復(fù)合光纜等。 全分散式

9、變電站自動(dòng)化系統(tǒng)，引入先進(jìn)的網(wǎng)絡(luò)技術(shù)。變電站占地及建筑 面積減少，變電站接線方案的簡化，組合電器、管母線及鋼支架等的采 用，使變電站布置更為簡單，取消站前區(qū)和優(yōu)化布置使變電站占地大幅 度下降。隨著技術(shù)的進(jìn)步，傳統(tǒng)的繼電保護(hù)裝置正逐步被微機(jī)保護(hù)所取代。 微機(jī)保護(hù)是微型計(jì)算機(jī)保護(hù)的簡稱，是一種數(shù)字式繼電保護(hù)，是基于可 編程數(shù)字電路技術(shù)和實(shí)時(shí)數(shù)字信號(hào)處理技術(shù)實(shí)現(xiàn)的電力系統(tǒng)繼電保護(hù)。 目前，國內(nèi)外已經(jīng)研制出以32位數(shù)字信號(hào)處理器為硬件基礎(chǔ)的保護(hù)、 控制、測量、及數(shù)據(jù)通信一體化的微機(jī)保護(hù)綜合控制裝置，并將一些人 工智能技術(shù)引入繼電保護(hù)中，如用人工神經(jīng)網(wǎng)絡(luò)、模糊理論實(shí)現(xiàn)故障類 型的判斷、故障測距、方向保護(hù)

10、、主設(shè)備保護(hù)等新方法。用小波理論的 數(shù)字手段分析故障產(chǎn)生信號(hào)的整個(gè)頻帶信息,并用于實(shí)現(xiàn)故障檢測。這些 人工智能技術(shù)不僅為提高故障判別精度提供了手段，而且使某些基于單 一工頻信號(hào)的傳統(tǒng)算法難以識(shí)別的問題得到了解決。目前，微機(jī)繼電保 護(hù)正沿著微機(jī)保護(hù)網(wǎng)絡(luò)化、智能化、自適應(yīng)、控制、測量、信號(hào)、數(shù)據(jù) 通信一體化的方向發(fā)展。城市電網(wǎng)運(yùn)行的最基本要求是安全與穩(wěn)定。城市電網(wǎng)安全穩(wěn)定的核 心問題是要建立一個(gè)與該城市相適應(yīng)的、合理的電網(wǎng)結(jié)構(gòu)。通過對(duì)電網(wǎng) 規(guī)劃和電力設(shè)計(jì)方面的技術(shù)原理分析，闡述在電網(wǎng)安全中關(guān)于電壓等 級(jí)、供電可靠性、供電能力以及電網(wǎng)安全的供電準(zhǔn)則等方面應(yīng)注意的一 些問題；以及有針對(duì)性的闡述了對(duì)22

11、0kv變電站和llokv變電站的具 體設(shè)計(jì)原則相對(duì)電網(wǎng)安全供電的要求。如何保證供電可靠性：1）滿足電網(wǎng)供電安全準(zhǔn)則。供電網(wǎng)絡(luò)滿足供電可靠性的要求。全部滿足n1的準(zhǔn)則，城區(qū)中心高負(fù)荷密度區(qū)域重要用戶滿足n2的準(zhǔn)則。不允許變壓器過載，城網(wǎng)供電可靠率指標(biāo)規(guī)劃目標(biāo)為99.99%。2）城市中配電負(fù)荷轉(zhuǎn)移能力滿足以下要求： 變電站失去任何一回進(jìn)線或一臺(tái)主變壓器而降低供電能力時(shí)，中 壓配電網(wǎng)具有轉(zhuǎn)移負(fù)荷，確保供電的能力。 變電站的一段母線因故停運(yùn)時(shí)，中壓配電網(wǎng)應(yīng)具有轉(zhuǎn)移全部負(fù)荷 的能力。 10kv配電線路任何段檢修或故障時(shí)，配電網(wǎng)應(yīng)具備轉(zhuǎn)移非檢 修、非故障段負(fù)荷的能力。非檢修、非故障段負(fù)荷停電時(shí)間僅為配電設(shè)

12、 備倒閘操作時(shí)間。3）配電網(wǎng)故障造成用戶停電時(shí)，允許停電的容量和恢復(fù)供電的目標(biāo) 時(shí)問滿足以下原則： 兩回路供電的用戶，失去一條回路后，應(yīng)不限電。 三回路供電的用戶，失去一條回路后，應(yīng)不限電，再失去一條回 路后，應(yīng)滿足供電容量50-70%用電。 一回路或多回路供電的用戶電源全停時(shí)，恢復(fù)供電的目標(biāo)時(shí)間為 一冋路故障處理恢復(fù)的時(shí)問。 在環(huán)網(wǎng)供電方式中對(duì)于開環(huán)網(wǎng)絡(luò)中的用戶，環(huán)網(wǎng)故障時(shí)的最低恢 復(fù)供電要求是需通過電網(wǎng)操作恢復(fù)供電的時(shí)間，其目標(biāo)時(shí)間為操作所需 的時(shí)問；配網(wǎng)自動(dòng)化線路是通過配網(wǎng)自動(dòng)化限制在1分鐘內(nèi)恢復(fù)完好區(qū) 段的供電。（3）供電能力和安全性1）城網(wǎng)中各電壓層網(wǎng)容量之間，按一定的變電容載比配置

13、，各級(jí)電 壓網(wǎng)變電容載比滿足現(xiàn)行城市電力網(wǎng)規(guī)劃設(shè)計(jì)導(dǎo)則規(guī)定的上限要求。 根據(jù)2001年國家經(jīng)濟(jì)貿(mào)易委員會(huì)頒布的電力行業(yè)標(biāo)準(zhǔn)電力系統(tǒng)安全 穩(wěn)定導(dǎo)則中指出：n-1準(zhǔn)則為正常運(yùn)行方式下的電力系統(tǒng)中任一元件 （如線路、發(fā)電機(jī)、變壓器等）無故障或因故障斷開，電力系統(tǒng)應(yīng)能保持 穩(wěn)定運(yùn)行和正常供電，其他元件不過負(fù)荷，電壓和頻率均在允許范圍內(nèi), 這通常稱為n1準(zhǔn)則。電網(wǎng)供電安全準(zhǔn)則有：n1準(zhǔn)則、準(zhǔn)n 2準(zhǔn) 則和n 2準(zhǔn)則。城市配電網(wǎng)的供電安全通常要求是釆用n 一 1準(zhǔn)則。 在供電安全特別重要的地方也有采用準(zhǔn)n 2準(zhǔn)則或n 2準(zhǔn)則。2）中壓配電網(wǎng)具有一定的備用容量，一般應(yīng)有50%裕度，當(dāng)任一元 件檢修和故障停運(yùn)

14、時(shí)，應(yīng)通過倒閘操作保持向用戶或非事故段用戶繼續(xù) 供電，轉(zhuǎn)移負(fù)荷時(shí)配電網(wǎng)的各元件不過負(fù)荷、不限電。變電站兩臺(tái)主變 同時(shí)停電時(shí)，公用線路應(yīng)調(diào)出60%以上負(fù)荷本科畢業(yè)設(shè)計(jì)(論文)外文資料翻譯附件：外文原文general requirements to construction of substationcarpentier j; optimal power flowsintemational joumal of electrical power and energy systems, 回歴 2011 febsubstations are a vital element in a power supp

15、ly system of industrial enterprises they serve to receive , convert and distribute electric energy depending on power and purpose ,the substations are divided into central distribution substations for a voltage of 110-500kv;main step-down substations for110-220/6-10-35kv;deep entrance substations fo

16、r 110-330/6-1 okv;distribution substations for 6-10kv;shop transformer substations for 610/0.38-0.66kv.at the main step-down substations, the energy received from the power source is transformed from 110-220kv usually to 6-10kv(sometimes 35kv) which is distributed among substations of the enterprise

17、 and is fed to high-voltage services.central distribution substations receive energy from power systems and distribute it (without or with partial transformation) via aerial and cable lines of deep entrances at a voltage of 110220kv over the enterprise territory central distribution substation diffe

18、rs from the main distributionsubstation in a higher power and in that bulk of its power is at a voltage of 110-220kv;it features simplified switching circuits at primary voltage; it is fed from the power to an individual object or region .low-and mediumpower shop substations transform energy from 6-

19、1 okv to a secondary voltage of 380/220 or 660/380step-up transformer substations are used at power plants for transformation of energy produced by the generators to a higher voltage which decreases losses at a long distance transmission . converter substations are intended to convert ac to dc (some

20、times vice versa) and to convert energy of one frequency to another converter substations with semiconductor rectifiers are convert energy of one frequency to another converter substations with semiconductor rectifiers are most economic distribution substations for 6-1 okv are fed primarily from mai

21、n distribution substations (sometimes from central distribution substations)with a system of dividing substations for 110-220kv, the functions of a switch-gear are accomplished by switch-gears for 6-1 okv at deep entrance substations.depending on location of substations their switchmay be outdoor or

22、 indo or. the feed and output lines at 6-1 okv substations are mainly of the cable type .at 35220kv substations of the aerial type when erecting and wiring the substations, major attention is given to reliable and economic power supply of a given production.substations are erected by industrial meth

23、ods with the use of large blocks and assemblies prepared at the site shops of electric engineering organizations and factories of electrical engineering industry .substations are usually designed for operation without continuous attendance of the duty personnel but with the use of elementary automat

24、ic and signaling deviceswhen constructing the structural part of a substation .it is advisable to use light-weight industrial structures and elements (panels ,floors ,etc.) made of bent sections these elements are made outside the erection zone and are only assembled at site this considerably cuts t

25、he terms and cost of construction.basic circuitry concepts of substations are chosen when designing a power supply system of the enterprise substations feature primary voltage entrances transformers and output cable lines or current conductors of secondary voltage substations are mounted from equipm

26、ent and elements described below .the number of possible combinations of equipment and elements is very great .when elaborating a substation circuitry ,it is necessary to strive for maximum simplification and minimizing the number of switching devices such substations are more reliable and economic

27、circuitry is simplified by using automatic enclosure or automatic change over to reserve facility which allows rapid and faultless redundancy of individual elements and using equipment.when designing transformer substations of industrial enterprises for all voltages, the following basic consideratio

28、ns are taken into account:1. preferable employment of a single-bus system with using two-bus systems only to ensure a reliable and economic power supply;2. wide use of unitized constructions and bustles substations;3.substantiated employment of automatics and telemetry ;if the substation design does

29、 not envisage the use of automatics or telemetry ,the circuitry is so arranged as to allow for adding such equipment in future without excessive investments and re-work4.use of simple and cheap devices-isolating switches ,short-circuiting switches ,load-breaking isolators ,fuses ,with due regard for

30、 their switching capacity may drastically cut the need for expensive and critical oil ,vacuum ,solenoid and air switches substation and switch-gear circuitries are so made that using the equipment of each production line is fed from individual transformers ,assemblies ,the lines to allow their disco

31、nnection simultaneously with mechanisms without disrupting operation of adjacent production flows.when elaborating circuitry of a substation, the most vital task is to properly choose and arrange switching devices (switches, isolators, current limiters, arresters, highvoltage fuses).the decision dep

32、ends on the purpose, power and significance of the substation.power system substation is an important and indispensable component of the power it assumed the task of conversion and distribution of grid security and the economy play a decisive role in running is to contact the user's power plants

33、 and intermediate links with economic development, expanding grid capacity, reliability of operation of the power grid is getting higher and higher requirements development of science and technology, intelligent switches, photoelectric current and voltage transformer, a run-line state detection, tra

34、ining simulation substation operation matures, such as high-tech, as well as fiber-optic technology, computer high-speed network system in the development of real-time applications, bound to the existing substation automation technology have a profound impact, all-digital substation automation syste

35、m development trend.power system is operated by the production, transmission, distribution and consumption of a variety of power linked to the composition of electrical equipment. as a result of a large number of powers can not be stored, we must ensure that the production of electricity and energy

36、balance. with the scientific and technological advances in the technological development of our country has reached a certain level. intelligent switches, photoelectric current and voltage transformer, a run-line state detection, training simulation substation operation matures, such as high-tech, a

37、s well as fiber-optic technology, computer high-speed network system in the development of real-time applications, significantly increase the transformation degree of automation.design of our substation cable programs tend to be simple, many of the recent domestic new 220 k v substation and llokv vo

38、ltage levels of wiring without the use of dual -bus bypass bus. the use of gis, the priority sub-bus single wire. terminal substation, the line as far as possible, such as transformer unit wiring a large number of the introduction of new technology, transformer substation rising level of electrical

39、equipment, power distribution devices from the traditional form of moving toward oil-free, vacuum switches, sf6 switches and mechanical, electrical equipment combination of the development of small-scale integration. in recent years the world famous high-voltage electrical equipment companies have b

40、een developing, the development of the various types of 145-550 kv outdoor high-pressure and ultrahigh-pressure combination of electrical appliances, some high-voltage switchgear plant has also started production of 145 k v compact outdoor portfolio electrical appliances smart plug-in type outdoor s

41、witchgear is a more complete high-pressure and ultrahigh-pressure switch system, which includes electrical first and second equipment, as well as the associated fiber optic cable, such as plug-type compound the entire distributed substation automation system; the introduction of advanced network tec

42、hnology; substation and the construction area covers an area of reduced substation program to simplify wiring, switchgear, bus and steel pipes, such as the use of stents to substation layout is more simple, the abolition of the former station area and optimize the layout to make a substantial declin

43、e in an area substation.with technological advances, the traditional relay protection devices are gradually being replaced by microprocessor-based protection. microprocessor-based protection is referred to as the protection of pc computer, a digital relay protection, is based on the programmable dig

44、ital circuit technology and real-time digital signal processing technology of the power system protection. at present, both at home and abroad have been developed to 32-bit digital signal processor for hardware-based protection, control, measurement, and data communications integration of microproce

45、ssor-based protection control devices, and artificial intelligence technology into a number of relay protection, such as artificial neural networks, fuzzy theory to determine the realization of fault type, fault location, the direction of protection, the main equipment and other new methods of prote

46、ction. by means of wavelet analysis of the theory of digital signal failure of the entire frequency band information and to achieve fault detection. these artificial intelligence technologies to improve the accuracy of failure to provide a means of identification, but also some single-frequency sign

47、al based on the traditional method difficult to identify the problems to be resolved. at present, the microprocessor-based relay protection is along the microprocessor-based protection network, and intelligent, adaptive and protection, control, measurement, signal, datacommunications integration dir

48、ection.the most basic request that charged barbed wire net in the city circulates is safe and stable. the core problem of charged barbed wire net safety in the city stability wants to build up to be a with the city mutually accommodative of, reasonable of charged barbed wire net structure. this text

49、 passes and programs to the charged barbed wire net with electric power and designs the technique principle of the aspect analysis. elaborated the standard concerning electric voltage grade, power supply credibility, power supply ability and charged barbed wire net safe power supply requests etc. so

50、me problems that should notice in the charged barbed wire net safety; and have already aimed at sex*s elaborating request to the concrete design principle opposite charged barbed wire net safe power supply of the 220 kv transformer substation and 11 okv transformer substation.how to promise power su

51、pply credibility1) satisfy charged barbed wire net power supply safe standard the power supply network satisfies the request of power supply credibility. the standard that all satisfies n-l, city area center high burden density important customer in the district satisfies the standard of n2.disallow

52、 transformer over carry. help a southern city net power supply credibility rate index sign programming target is 99.99%2) press to go together with charged barbed wire net burden to transferability in the city satisfies following request: the transformer substation loses any once enter line or one s

53、et lord transformer but lower power supply ability, win press to go together with charged barbed wire net to have to transfer burden to ensure the ability of power supply.(2) when a female line of transformer substation stops luck because of putting, winning to press to go together with charged barb

54、ed wire net should have the ability that transfer all burden.(3) when the lokv goes together with electric wire road any check to fix or breaks down, going together with the charged barbed wire net should have non- check of transfer to fix, non- breakdown segment ability for carrying. the non check

55、fixes,the non breakdown segment carries to the power is off time only for go together with to give or get an electric shock an equipments to pour a zia operation for time.3) ask to satisfy a following principle while allowing the capacity of the power outage and the target of the instauration power

56、supply while going together with charged barbed wire net breakdown to make the customer the power is off:the customer of two back track power supplies, after losing a back track, should be unlimited to give or get an electric shock. the customer of three back track power supplies , after losing a ba

57、ck track, should be unlimited to give or get an electric shock, again after losing a back track, should satisfy power supply capacity 50-70% is used an electricity. when all of a back track or much customer's the power of back track power supplies stopped, resume target time of power supply brok

58、e down to handle for a back track restored of ask at wreath net power supply method in for open the customer in the wreath network, the lowest instauration power supply request for breaking down wreath net is to need to pass charged barbed wire net operation instaurationpower supply of time, its target time need for operating of asks; it is the power supply that passes to go together with net automation restriction to resume an intact block in the lain to go together with net automation circuit.(3)power s