AB 網(wǎng)絡(luò)適配器 1203-CN1
HPS2D75…840型電機(jī)軟起動器，是一種全數(shù)字控制的軟起動器？刂乒δ苁滞晟撇⒂卸喾N保護(hù)功能,在省級新產(chǎn)品鑒定會上，被評定為國際水平國內(nèi)產(chǎn)品。它采用16位單片機(jī)，數(shù)據(jù)處理實(shí)現(xiàn)全部數(shù)字化，起動和停止時的電壓斜坡由單片機(jī)控制。具有脈沖突跳、大電流斷開、泵停止、內(nèi)置電子過載保護(hù)(可選)、斷相保護(hù)、過流保護(hù)、過溫保護(hù)，并具有自診斷和節(jié)能功能？上妱訖C(jī)起動、停止過程中的電流沖擊，減小電網(wǎng)容量，避免電機(jī)起動時機(jī)械沖擊，保護(hù)電機(jī)和負(fù)載。是傳統(tǒng)星--三角、自耦降壓起動器的換代產(chǎn)品，可廣泛應(yīng)用于紡織、冶金、石油化工、水處理、食品和保健品加工、采礦和機(jī)械等行業(yè)。
HPMV-DN中、高壓固態(tài)軟啟動器
HPMV-DN中、高壓固態(tài)軟啟動器
HPMV-DN高壓固態(tài)
積分型AD工作原理是將輸入電壓轉(zhuǎn)換成時間(脈沖寬度信號)或頻率(脈沖頻率)，然后由定時器/計(jì)數(shù)器獲得數(shù)字值。其優(yōu)點(diǎn)是用簡單電路就能獲得高分辨率，但缺點(diǎn)是由于轉(zhuǎn)換精度依賴于積分時間，因此轉(zhuǎn)換速率極低。初期的單片AD轉(zhuǎn)換器大多采用積分型，逐次比較型已逐步成為主流。
2）逐次比較型（如TLC0831）
逐次比較型AD由一個比較器和DA轉(zhuǎn)換器通過逐次比較邏輯構(gòu)成，從MSB開始，順序地對每一位將輸入電壓與內(nèi)置DA轉(zhuǎn)換器輸出進(jìn)行比較，經(jīng)n次比較而輸出數(shù)字值。其電路規(guī)模屬于中等。其優(yōu)點(diǎn)是速度較高、功耗低，在低分辨率（12位）時價格很高。
3）并行比較型/串并行比較型（如TLC5510）
磁控軟啟動器裝置直道2002年5月才有國產(chǎn)第一臺高壓產(chǎn)品問世。查新檢索表明，國外不生產(chǎn)這類產(chǎn)品。它是從電抗器啟動衍生出來的。用電抗串聯(lián)在電動機(jī)定子實(shí)現(xiàn)降壓是兩者的共同點(diǎn)。磁控軟啟動不同于電抗器軟啟動的時刻空飽和和電抗器來取代固定電抗器。飽和電抗器在啟動完成后被旁路。
在磁控軟啟動裝置中，SCR通過飽和電抗器的功率和電壓放大作用，控制電動機(jī)的電流。不像在晶閘管軟啟動裝置里，在這里耐高壓和流通大電流都是飽和電抗器的事情。磁控軟啟動由以下的技術(shù)優(yōu)勢：1、可靠；2、便宜；3、對環(huán)境要求不高。
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Trutzschler DCB1 DCB 1 9 494-80.230.000 ABR28 494-16.210.001 AA
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TRUTZSCHLER BRE 1C CONTROL STATION ***XLNT***
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Trutzschler 492 47 430 000 NTE1 Supply
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