監(jiān)控與數(shù)據(jù)采集系統(tǒng)-電力系統(tǒng)專業(yè)英語課件

1、A1Supervisory control and Data Acquisition System監(jiān)控與數(shù)據(jù)采集系統(tǒng)Lesson EightA2vocabularysupervisory scanself-checkalarmover-temperaturechange-of-statetelemeterreferenceanalog quantitypulse監(jiān)視掃描自檢報警過熱狀態(tài)改變、變位遙信基準(zhǔn)模擬量脈沖A3vocabularysequence-of-event(SOE)codeloggingmodulatordemodulatorpanelmimic事件順序記錄代碼記錄調(diào)制器解調(diào)器面

2、板模仿的A4(1) Conditions alarming, such as fire alarm, illegal entry, over-temperature, low battery voltage and indication alarm of any uncommanded change-of-state.(2) Control and indication including:a. Control of, and indication from a device having only two position. Examples are circuit breakers (tr

3、ipped or closed) and motor starters (stopped or started).b. Control of , and indication from a device having three positions. An example is a valve (closed, midposition and open).c. Indication without control of a device having two or three positions.Sentence ExplanationsA5d. Indications with memory

4、 capable of storing single or multiple changes of status that occur between scans.e. Control without indication of a device. Examples are tap-changing transformers (tap position is brought to the master by telemetering means) and raise-lower control of generator load.f. Set-point control to provide

5、a set-point reference to a controller located at a remote.(3) Data acquisition including recording or displaying:a. Analog quantities. Examples are AC watts, vars, volts and amperes.b. Kilowatt-hour data from digital pulses.c. Digital data such as levels that are digitalized by external devices and

6、read digitally by the SCADA equipment.A6(4)Sequence-of-events that recognize the occurrence of predefined events,associated time of occurrence with each event,and presentation of the event data in the order of occurrence of the events. (4)事件順序記錄，它記錄預(yù)定義的事件及其發(fā)生的時間，并且按照事件發(fā)生的順序顯示事件數(shù)據(jù)。A7This information

7、can be commands to remote locations(trip-close,position,set points,etc.) or it can be the transmission of status indication,position and analog or digital data from the remote to the master station.這種信息可以是對遠(yuǎn)方設(shè)備的操作命令（斷/合，位置設(shè)定，整定命令等等）或是從遠(yuǎn)方到主站的狀態(tài)監(jiān)測，位置信號、模擬量或數(shù)字量。A8The communications input/output functio

8、n is handled by several microcomputers capable of operating with a number of communication lines. 幾個可以處理多路信道的微機實現(xiàn)通信的輸入輸出功能。1、capable of 修飾microcomputers 2、被動譯為主動A9Conventional master station man-machine interface systems consist of standard panels with mimic bus, indicating lights, control switches,

9、 alarm panels and indicating meters. 模擬盤 模擬母線 指示燈 控制開關(guān) 光字牌 監(jiān)測儀表A10A11A12The CRT provides a one-line diagram that dynamically displays the status of the substation and also alphanumeric displays; this saves space and wiring. The keyboard and special-function push buttons are used by the operator for

10、the display function,data and events logging , limit violation and other operator actions. Logging by the printer provides a permanent hard-copy record of all things that have occurred at a remote.CRT提供單線圖可以動態(tài)顯示變電站的狀態(tài)和數(shù)字顯示，這節(jié)省了空間和電纜。運行人員使用鍵盤和特殊功能的按鈕進行顯示，數(shù)據(jù)和事件記錄，越限記錄和其他操作。打印日志提供在遠(yuǎn)方發(fā)生的所有事件的永久的硬拷貝記錄。A1

11、3A14Operators control allows the following functions to be initiated: control action,CRT display selection, alarm acknowledgement, data entry, demand logging, limit changes and points IN or OUT of service in the substation. Means for print and display ,data entry , control point selection and alarm

12、functions are also provided.運行人員控制允許執(zhí)行以下功能：控制操作，CRT顯示畫面選擇，報警確認(rèn)，數(shù)據(jù)錄入，命令日志，改變限值和變電站測點投用/停用。SCADA系統(tǒng)也提供顯示和打印，數(shù)據(jù)錄入、控制點選擇和報警功能。A15Translation Skill被動句的翻譯1、譯為被動句為保持譯文的準(zhǔn)確性，通常可保留被動語氣。常用“被、由、為、受、靠”等詞表示。The keyboard and special-function push buttons are used by the operator for the display function。鍵盤和特殊功能的按鈕被

13、操作員用于顯示。A16Translation Skill被動句的翻譯2、譯為漢語主動句某些情況下，用被動翻譯譯句語序不好處理，可譯為主動句，即采用反譯法。The communications input/output function is handled by several microcomputers capable of operating with a number of communication lines.幾個可以處理多路信道的微機實現(xiàn)通信的輸入輸出功能。因為“微機”的定語很長，若保持被動語氣，主語和賓語距離太遠(yuǎn)，句子結(jié)構(gòu)不緊湊。A17Translation Skill被動句的翻譯3、譯為無主句對it ed that結(jié)構(gòu)，可以譯為無主句It must be realized that