freepeople性欧美熟妇, 色戒完整版无删减158分钟hd, 无码精品国产vα在线观看DVD, 丰满少妇伦精品无码专区在线观看,艾栗栗与纹身男宾馆3p50分钟,国产AV片在线观看,黑人与美女高潮,18岁女RAPPERDISSSUBS,国产手机在机看影片

正文內容

供電系統(tǒng)外文翻譯-其他專業(yè)(編輯修改稿)

2025-02-24 07:25 本頁面
 

【文章內容簡介】 urrent, and withstanding high voltage surges that appear after interruption. Switches with normal loadinterruption capability are called load break switches. Disconnect witches. Disconnect witches have isolation and connection capability without interruption capability. Busbars Bus bars arc connecting bars or conductors between equipment. Flexible conductor are stretched from insulator to insulator, where more mon solid buses(monly made of aluminum alloy)are installed on insulators in the air or in gasenclosed cylindrical pipes Shunt reactors Shunt reactors are often required for pensation of line capacitance where long lines are involved Shunt capacitors Shunt capacitors are often required for pensation of inductive ponents of load current Current transformers and potential transformers, Current transformers and potential transformers are for measuring currents and voltages and provide proportionately lowlevel currents and voltages for control and protection Control and protection, Control and protection include a) a variety of protective relays which can rapidly detect faults anywhere in the substation equipment and lines, determine which part of the systems is faulty ,and give appropriate mands for opening of circuit breakers 。(b) Control equipment for voltage and Current control and proper selection of the system conf gmation。(c) faultrecording equipment 。(e)metering equipment。 and (f) auxiliary power supplies. Many of the control and protection devices are solidstate electronic types, and there is a trend toward digital techniques using microprocessors. most of the substations are fullv automated locallv with a provision for manual override .the minimum manual interface required ,alone munications channels to the dispatche
點擊復制文檔內容
黨政相關相關推薦
文庫吧 www.dybbs8.com
備案圖片鄂ICP備17016276號-1