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The switches installed in converter station valve halls in Xiangjiaba-Shanghai ±800 kV UHVDC project are expensive and maintenance inconvenience.Two optimization schemes of the valve hall grounding switches for researches on the function and operation of the switchers are presented.The two schemes are both studied in detail,with one way of abolishing all grounding switches on transformer valve side,and another way of partly cancelling the switches.Detailed analysis is further carried out for the feasibility and the pros and cons of the two schemes.Based on the comparison of two schemes,the partial reduction of grounding switches is selected to get a simulation with an EMTDC model.Plus in order to verify the reliability of the simulating results,a field test is carried out in Fengxian converter station with the partly switches cancellation scheme.The test results proved that using only one switch can still release residual charge in the valve hall in a relatively short period.Optimized designs of the valve hall switches can save both space and costs of the project.
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家裝開關、插座的分布 上傳時間: 2012-3-18 15:36:38 來源: 裝酷網(wǎng) 網(wǎng)友評論 0 條 加瑞裝飾給出的各自然間開關、插座數(shù)量的參考建議: (一)主臥室:開關 2 個(主臥室頂燈的門口和床頭雙控),插座 6 個(兩個床頭燈、空調(diào)、電話、電視、 地燈); (二)次臥室(兒童房):開關 2 個(次臥室頂燈的門口和床頭雙控),插座 4 個(空調(diào)、電話、寫字臺 燈插座、備用插座);(三)書房:開關 2 個(書房頂燈的門口和書桌雙控),插座 6 個(網(wǎng)口、空調(diào)、 電話、書房臺燈、電腦、備用插座); (四)客廳:開關 1 個(客廳頂燈),插座 8 個(電視 3 個、飲水機、空調(diào)、電話、地燈、備用插座); (五)衛(wèi)生間:開關 3 個(衛(wèi)生間頂燈、鏡前燈、排風扇或浴霸),插座: 4 個(洗衣機、吹風機、電熱 水器、電話); (六)廚房(廚房、餐廳一體):開關 2 個(廚房頂燈、餐廳頂