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烏蘭浩特市批發(fā)韓國(guó)Autovalve閥門ACV131D-100A-S10
烏蘭浩特市批發(fā)韓國(guó)Autovalve閥門ACV131D-100A-S10
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上架日期:2020-02-27 10:57:32
產(chǎn)地:韓國(guó)
發(fā)貨地:中山市
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    烏蘭浩特市批發(fā)韓國(guó)Autovalve閥門ACV131D-100A-S10中山立訊電氣/中山朗立電氣批發(fā)

    KG AUTO轉(zhuǎn)換開關(guān)KGT系列
    KGT-N2M1D1R KGT-N2M1D1Y KGT-N2M1D1G KGT-N2M1D1A KGT-N2M1D1W,
    KGT-N2M1D2R KGT-N2M1D2Y KGT-N2M1D2G KGT-N2M1D2A KGT-N2M1D2W,
    KGT-N2M1D3R KGT-N2M1D3Y KGT-N2M1D3G KGT-N2M1D3A KGT-N2M1D3W
    KGT-N2M1V2R KGT-N2M1V2Y KGT-N2M1V2G KGT-N2M1V2A KGT-N2M1V2W,
    KGT-N2M1V3R KGT-N2M1V3Y KGT-N2M1V3G KGT-N2M1V3A KGT-N2M1V3W
    KGT-N2M2D1R KGT-N2M2D1Y KGT-N2M2D1G KGT-N2M2D1A KGT-N2M2D1W,
    KGT-N2M2D2R KGT-N2M2D2Y KGT-N2M2D2G KGT-N2M2D2A KGT-N2M2D2W,
    KGT-N2M2D3R KGT-N2M2D3Y KGT-N2M2D3G KGT-N2M2D3A KGT-N2M2D3W,
    KGT-N2M2V2R KGT-N2M2V2Y KGT-N2M2V2G KGT-N2M2V2A KGT-N2M2V2W,
    KGT-N2M2V3R KGT-N2M2V3Y KGT-N2M2V3G KGT-N2M2V3A KGT-N2M2V3W
    KGT-N2R1D1R KGT-N2R1D1Y KGT-N2R1D1G KGT-N2R1D1A KGT-N2R1D1W,
    KGT-N2R1D2R KGT-N2R1D2Y KGT-N2R1D2G KGT-N2R1D2A KGT-N2R1D2W,
    KGT-N2R1D3R KGT-N2R1D3Y KGT-N2R1D3G KGT-N2R1D3A KGT-N2R1D3W,
    KGT-N2R1V2R KGT-N2R1V2Y KGT-N2R1V2G KGT-N2R1V2A KGT-N2R1V2W,
    KGT-N2R1V3R KGT-N2R1V3Y KGT-N2R1V3G KGT-N2R1V3A KGT-N2R1V3W
    KGT-N2R2D1R KGT-N2R2D1Y KGT-N2R2D1G KGT-N2R2D1A KGT-N2R2D1W,
    KGT-N2R2D2R KGT-N2R2D2Y KGT-N2R2D2G KGT-N2R2D2A KGT-N2R2D2W,

    故在電路中起著自動(dòng)調(diào)節(jié)、保護(hù)、轉(zhuǎn)換電路等作用。主要用于發(fā)電機(jī)、變壓器和輸電線的繼電保護(hù)裝置中,作為過電壓保護(hù)或低電壓閉鎖的啟動(dòng)原件。[1]中文名電壓繼電器外文名Voltagerelay類別電氣設(shè)備學(xué)科電工學(xué)作用自動(dòng)調(diào)節(jié)、保護(hù)、轉(zhuǎn)換電路分類過電壓繼電器、欠電壓繼電器目錄1介紹2分類3電磁式電壓繼電器4靜態(tài)電壓繼電器介紹編輯電壓繼電器是輸入量、特性量為電壓的量度繼電器,分為過電壓繼電器和欠電壓繼電器。前者由于電壓值增加達(dá)到整定值而動(dòng)作,然后處于動(dòng)后狀態(tài);后者由于電壓值減少達(dá)到整定值而動(dòng)作,然后處于釋放狀態(tài)。電壓繼電器有電磁型、晶體管型。電磁型電壓繼電器原理及結(jié)構(gòu)如圖1所示,當(dāng)電壓達(dá)到整定值時(shí),鐵芯將舌片吸合。管壓降(通態(tài)平均電壓)為0.6---0.7V的普通型可控硅。綜上所述,小結(jié)如下:(1)可控硅一般做成螺栓形和平板形,有三個(gè)電極,用硅半導(dǎo)體材料制成的管芯由PNPN四層組成(2)可控硅由關(guān)斷轉(zhuǎn)為導(dǎo)通必須同時(shí)具備兩個(gè)條件:(1〕受正向陽極電壓;(2)受正向門極電壓。(3)可控硅導(dǎo)通后,當(dāng)陽極電流小干維持電流In時(shí).可控硅關(guān)斷。(4)可控硅的特性主要是:1.陽極伏安特性曲線,2.門極伏安特性區(qū)。(5)應(yīng)在額定參數(shù)范圍內(nèi)使用可控硅。選擇可控硅主要確定兩個(gè)參致:主要參數(shù)編輯電流⒈額定通態(tài)電流(IT)即穩(wěn)定工作電流,俗稱電流。常用可控硅的IT一般為一安到幾十安。⒉反向重復(fù)峰值電壓(VRRM)或斷態(tài)重復(fù)峰值電壓(VDRM)。烏蘭浩特市批發(fā)韓國(guó)Autovalve閥門ACV131D-100A-S10

    烏蘭浩特市批發(fā)韓國(guó)Autovalve閥門ACV131D-100A-S10
    KGT-N2R2D3R KGT-N2R2D3Y KGT-N2R2D3G KGT-N2R2D3A KGT-N2R2D3W,
    KGT-N2R2V2R KGT-N2R2V2Y KGT-N2R2V2G KGT-N2R2V2A KGT-N2R2V2W,
    KGT-N2R2V3R KGT-N2R2V3Y KGT-N2R2V3G KGT-N2R2V3A KGT-N2R2V3W
    KG AUTO轉(zhuǎn)換開關(guān)KGT系列
    KGT-H2M1D1R KGT-H2M1D1Y KGT-H2M1D1G KGT-H2M1D1A KGT-H2M1D1W,
    KGT-H2M1D2R KGT-H2M1D2Y KGT-H2M1D2G KGT-H2M1D2A KGT-H2M1D2W,
    KGT-H2M1D3R KGT-H2M1D3Y KGT-H2M1D3G KGT-H2M1D3A KGT-H2M1D3W,
    KGT-H2M1V2R KGT-H2M1V2Y KGT-H2M1V2G KGT-H2M1V2A KGT-H2M1V2W,
    KGT-H2M1V3R KGT-H2M1V3Y KGT-H2M1V3G KGT-H2M1V3A KGT-H2M1V3W
    KGT-H2M2D1R KGT-H2M2D1Y KGT-H2M2D1G KGT-H2M2D1A KGT-H2M2D1W,
    KGT-H2M2D2R KGT-H2M2D2Y KGT-H2M2D2G KGT-H2M2D2A KGT-H2M2D2W,
    KGT-H2M2D3R KGT-H2M2D3Y KGT-H2M2D3G KGT-H2M2D3A KGT-H2M2D3W,
    KGT-H2M2V2R KGT-H2M2V2Y KGT-H2M2V2G KGT-H2M2V2A KGT-H2M2V2W,俗稱耐壓。常用可控硅的VRRM/VDRM一般為幾百伏到一千伏。⒊控制極觸發(fā)電流(IGT),俗稱觸發(fā)電流。常用可控硅的IGT一般為幾微安到幾十毫安。在規(guī)定環(huán)境溫度和散熱條件下,允許通過陰極和陽極的電流平均值。封裝形式編輯常用可控硅的封裝形式有TO-TO-TO-202AB、TO-TO-220ABC、TO-3P、SOT-TO-TO-SOT-SOT23-3L等用途編輯普通晶閘管基本的用途就是可控整流。大家熟悉的二極管整流電路屬于不可控整流電路。如果把二極管換成晶閘管,就可以構(gòu)成可控整流電路。以簡(jiǎn)單的單相半波可控整流電路為例,在正弦交流電壓U2的正半周期間。
    KGT-H2M2V3R KGT-H2M2V3Y KGT-H2M2V3G KGT-H2M2V3A KGT-H2M2V3W
    KGT-H2R1D1R KGT-H2R1D1Y KGT-H2R1D1G KGT-H2R1D1A KGT-H2R1D1W,
    KGT-H2R1D2R KGT-H2R1D2Y KGT-H2R1D2G KGT-H2R1D2A KGT-H2R1D2W,
    KGT-H2R1D3R KGT-H2R1D3Y KGT-H2R1D3G KGT-H2R1D3A KGT-H2R1D3W,
    KGT-H2R1V2R KGT-H2R1V2Y KGT-H2R1V2G KGT-H2R1V2A KGT-H2R1V2W,
    KGT-H2R1V3R KGT-H2R1V3Y KGT-H2R1V3G KGT-H2R1V3A KGT-H2R1V3W
    KGT-H2R2D1R KGT-H2R2D1Y KGT-H2R2D1G KGT-H2R2D1A KGT-H2R2D1W,
    KGT-H2R2D2R KGT-H2R2D2Y KGT-H2R2D2G KGT-H2R2D2A KGT-H2R2D2W,
    KGT-H2R2D3R KGT-H2R2D3Y KGT-H2R2D3G KGT-H2R2D3A KGT-H2R2D3W,
    KGT-H2R2V2R KGT-H2R2V2Y KGT-H2R2V2G KGT-H2R2V2A KGT-H2R2V2W,
    KGT-H2R2V3R KGT-H2R2V3Y KGT-H2R2V3G KGT-H2R2V3A KGT-H2R2V3W

    感溫元件裝在保護(hù)管內(nèi),一端是固定端,另一端是自由端,自由端連接一根細(xì)軸,軸端裝有指針,當(dāng)溫度變化時(shí),感溫元件感溫后,其自由端圍繞著固定端旋轉(zhuǎn),并帶動(dòng)指針轉(zhuǎn)動(dòng),從而顯示在表盤上。[3]雙金屬溫度表結(jié)構(gòu)圖雙金屬溫度表結(jié)構(gòu)圖分類編輯伽利略溫度表伽利略溫度表溫度表運(yùn)利用一系列的物理反應(yīng)去測(cè)量溫度的。而多數(shù)的溫度表初是被校準(zhǔn)到恒定容量的氣體溫度表。溫度表(Mercury-in-glassthermometer)酒精溫度表(Alcohol-in-glassthermometer)雙金屬棒狀溫度表(Bi-blmechanicalthermometer)伽利略溫度表(Galileothermometer)紅外線溫度表(Infra-redthermometer)液晶體溫度表(LiquidCrystalThermometer)溫度表(MaximuMinimumthermometer)顛倒溫度表/倒置式溫度表(Reversingthermometer)硅帶溫度傳感器(Siliconbandgaptemperaturesensor)息克斯溫度表/悉氏溫度表(Six'sthermometer)熱敏電阻溫度表(ThermistorThermometer)熱電偶溫度表(ThermocoupleThermometer)旋轉(zhuǎn)式溫度表((RotaryThermometer)定容器體溫度表(Constantvolumebodythermometer)用途編輯溫度表溫度表實(shí)驗(yàn)室溫度表(Laboratorythermometer)工業(yè)溫度表(Industrialthermometer)肉類溫度表(Meatthermometer)溫度表(Medicalthermometer)室內(nèi)溫度表(又稱寒暑表)(Roomthermometer)使用范圍編輯測(cè)量各種固體表面、氣體、液體。因此,有時(shí)測(cè)得控制極反向電阻比較小,并不能說明控制極特性不好。另外,在測(cè)量控制極正反向電阻時(shí),萬用表應(yīng)放在R*10或R*1擋,防止電壓過高控制極反向擊穿。若測(cè)得元件陰陽極正反向已短路,或陽極與控制極短路,或控制極與陰極反向短路,或控制極與陰極斷路,說明元件已損壞??煽毓枋强煽毓枵髟暮?jiǎn)稱,是一種具有三個(gè)PN結(jié)的四層結(jié)構(gòu)的大功率半導(dǎo)體器件。實(shí)際上,可控硅的功用不僅是整流,它還可以用作無觸點(diǎn)開關(guān)以快速接通或切斷電路,實(shí)現(xiàn)將直流電變成交流電的逆變,將一種頻率的交流電變成另一種頻率的交流電,等等??煽毓韬推渌雽?dǎo)體器件一樣,其有體積小、效率高、穩(wěn)定性好、工作可靠等優(yōu)點(diǎn)。它的出現(xiàn),使半導(dǎo)體技術(shù)從弱電領(lǐng)域進(jìn)入了強(qiáng)電領(lǐng)域。烏蘭浩特市批發(fā)韓國(guó)Autovalve閥門ACV131D-100A-S10

    烏蘭浩特市批發(fā)韓國(guó)Autovalve閥門ACV131D-100A-S10
    KG AUTO轉(zhuǎn)換開關(guān)KGT系列
    KGT-C2M1D1R KGT-C2M1D1Y KGT-C2M1D1G KGT-C2M1D1A KGT-C2M1D1W,
    KGT-C2M1D2R KGT-C2M1D2Y KGT-C2M1D2G KGT-C2M1D2A KGT-C2M1D2W,
    KGT-C2M1D3R KGT-C2M1D3Y KGT-C2M1D3G KGT-C2M1D3A KGT-C2M1D3W,
    KGT-C2M1V2R KGT-C2M1V2Y KGT-C2M1V2G KGT-C2M1V2A KGT-C2M1V2W,
    KGT-C2M1V3R KGT-C2M1V3Y KGT-C2M1V3G KGT-C2M1V3A KGT-C2M1V3W
    KGT-C2M2D1R KGT-C2M2D1Y KGT-C2M2D1G KGT-C2M2D1A KGT-C2M2D1W,
    KGT-C2M2D2R KGT-C2M2D2Y KGT-C2M2D2G KGT-C2M2D2A KGT-C2M2D2W,
    KGT-C2M2D3R KGT-C2M2D3Y KGT-C2M2D3G KGT-C2M2D3A KGT-C2M2D3W,
    KGT-C2M2V2R KGT-C2M2V2Y KGT-C2M2V2G KGT-C2M2V2A KGT-C2M2V2W,
    KGT-C2M2V3R KGT-C2M2V3Y KGT-C2M2V3G KGT-C2M2V3A KGT-C2M2V3W
    KGT-C2R1D1R KGT-C2R1D1Y KGT-C2R1D1G KGT-C2R1D1A KGT-C2R1D1W,
    KGT-C2R1D2R KGT-C2R1D2Y KGT-C2R1D2G KGT-C2R1D2A KGT-C2R1D2W,
    KGT-C2R1D3R KGT-C2R1D3Y KGT-C2R1D3G KGT-C2R1D3A KGT-C2R1D3W,
    KGT-C2R1V2R KGT-C2R1V2Y KGT-C2R1V2G KGT-C2R1V2A KGT-C2R1V2W,
    KGT-C2R1V3R KGT-C2R1V3Y KGT-C2R1V3G KGT-C2R1V3A KGT-C2R1V3W
    KGT-C2R2D1R KGT-C2R2D1Y KGT-C2R2D1G KGT-C2R2D1A KGT-C2R2D1W,
    KGT-C2R2D2R KGT-C2R2D2Y KGT-C2R2D2G KGT-C2R2D2A KGT-C2R2D2W,
    KGT-C2R2D3R KGT-C2R2D3Y KGT-C2R2D3G KGT-C2R2D3A KGT-C2R2D3W,
    KGT-C2R2V2R KGT-C2R2V2Y KGT-C2R2V2G KGT-C2R2V2A KGT-C2R2V2W,
    KGT-C2R2V3R KGT-C2R2V3Y KGT-C2R2V3G KGT-C2R2V3A KGT-C2R2V3W

    也可通過RS485通訊備份至其他計(jì)算機(jī),并可自動(dòng)進(jìn)行備份實(shí)時(shí)顯示數(shù)據(jù)。新功能:USB接口:插U盤備份歷史數(shù)據(jù)和報(bào)警信息,接打印機(jī)打印歷史曲線和數(shù)據(jù);可通過U盤備份歷史數(shù)據(jù),再到PC上用“無紙記錄儀U盤采集系統(tǒng)”進(jìn)行歷史數(shù)據(jù)查看與分析。技術(shù)參數(shù)編輯◇輸入種類及測(cè)量量程、精度輸入種類量程測(cè)量量程精度DVC0~20mV-9999~199990.2%0~100mV-9999~199990.2%0~5V-9999~199990.2%1~5V-9999~199990.2%DCI0~100mA-9999~199990.2%4~20mA-9999~199990.2%TCS-50.0~100.0℃3.7℃100.0~1768.0℃2℃B0~1820.0℃2℃K-50.0~1372.0℃2℃E-50.0~1000.0℃2℃J-50.0~1200.0℃2℃T-199.90~320.00℃2℃Wer3-250.0~2300.0℃5℃RTDPt100200.0~850.0℃1℃Cu50-50.00~150.00℃1℃電阻0~350-9999~19999頻率0-10KHZ0~199991無紙記錄儀系列儀表允許1~40路不同類型的信號(hào)直接輸入。基礎(chǔ)頂部應(yīng)預(yù)埋M24地腳螺栓,螺栓露出基礎(chǔ)高度應(yīng)不小于100mm,螺栓的預(yù)埋位置偏差不得大于±2mm;引入電纜預(yù)埋鋼管的位置及規(guī)格等)。23)立桿及其主要構(gòu)件的室外控制開關(guān)箱應(yīng)采用不銹鋼箱體,并對(duì)其表面作噴塑處理。24)立桿采用Φ159×6直縫鋼管;立桿與橫支臂的連接端頭(0.2m)采用Φ89×4.5直縫鋼管,焊接加強(qiáng)板(δ10鋼板)保護(hù);立桿與基礎(chǔ)采用法蘭盤加預(yù)埋螺栓連接,焊接加強(qiáng)板(δ10鋼板)保護(hù);橫支臂與立桿端頭連接方式采用法蘭盤連接,并進(jìn)行焊接加強(qiáng)板(δ10鋼板)保護(hù);立桿的中心軸線距橫支臂靠路中心一側(cè)端頭的間距為5m。橫支臂采用Φ89×4.5直縫鋼管;且橫支臂中間均勻焊接立管3根,采用Φ60×4.5鋼管。烏蘭浩特市批發(fā)韓國(guó)Autovalve閥門ACV131D-100A-S10

    烏蘭浩特市批發(fā)韓國(guó)Autovalve閥門ACV131D-100A-S10
    KG AUTO轉(zhuǎn)換開關(guān)KGT系列
    KGT-J2M1D1R KGT-J2M1D1Y KGT-J2M1D1G KGT-J2M1D1A KGT-J2M1D1W,
    KGT-J2M1D2R KGT-J2M1D2Y KGT-J2M1D2G KGT-J2M1D2A KGT-J2M1D2W,
    KGT-J2M1D3R KGT-J2M1D3Y KGT-J2M1D3G KGT-J2M1D3A KGT-J2M1D3W,
    KGT-J2M1V2R KGT-J2M1V2Y KGT-J2M1V2G KGT-J2M1V2A KGT-J2M1V2W,
    KGT-J2M1V3R KGT-J2M1V3Y KGT-J2M1V3G KGT-J2M1V3A KGT-J2M1V3W
    KGT-J2M2D1R KGT-J2M2D1Y KGT-J2M2D1G KGT-J2M2D1A KGT-J2M2D1W,
    KGT-J2M2D2R KGT-J2M2D2Y KGT-J2M2D2G KGT-J2M2D2A KGT-J2M2D2W,
    KGT-J2M2D3R KGT-J2M2D3Y KGT-J2M2D3G KGT-J2M2D3A KGT-J2M2D3W,
    KGT-J2M2V2R KGT-J2M2V2Y KGT-J2M2V2G KGT-J2M2V2A KGT-J2M2V2W,
    KGT-J2M2V3R KGT-J2M2V3Y KGT-J2M2V3G KGT-J2M2V3A KGT-J2M2V3W
    KGT-J2R1D1R KGT-J2R1D1Y KGT-J2R1D1G KGT-J2R1D1A KGT-J2R1D1W,
    KGT-J2R1D2R KGT-J2R1D2Y KGT-J2R1D2G KGT-J2R1D2A KGT-J2R1D2W,
    KGT-J2R1D3R KGT-J2R1D3Y KGT-J2R1D3G KGT-J2R1D3A KGT-J2R1D3W,
    KGT-J2R1V2R KGT-J2R1V2Y KGT-J2R1V2G KGT-J2R1V2A KGT-J2R1V2W,
    KGT-J2R1V3R KGT-J2R1V3Y KGT-J2R1V3G KGT-J2R1V3A KGT-J2R1V3W
    KGT-J2R2D1R KGT-J2R2D1Y KGT-J2R2D1G KGT-J2R2D1A KGT-J2R2D1W,
    KGT-J2R2D2R KGT-J2R2D2Y KGT-J2R2D2G KGT-J2R2D2A KGT-J2R2D2W,
    KGT-J2R2D3R KGT-J2R2D3Y KGT-J2R2D3G KGT-J2R2D3A KGT-J2R2D3W,
    KGT-J2R2V2R KGT-J2R2V2Y KGT-J2R2V2G KGT-J2R2V2A KGT-J2R2V2W,
    KGT-J2R2V3R KGT-J2R2V3Y KGT-J2R2V3G KGT-J2R2V3A KGT-J2R2V3W

    退磁檢查電流互感器在電流突然下降的情況下,互感器鐵芯可能產(chǎn)生剩磁。如電流互感器在大電流情況下突然切斷電源、二次繞組突然開路等?;ジ衅麒F芯有剩磁,使鐵芯磁導(dǎo)率下降,影響互感器性能。長(zhǎng)期使用后的互感器都應(yīng)該退磁。互感器檢驗(yàn)前也要退磁。退磁就是通過一次或二次繞組以交變的勵(lì)磁電流,給鐵芯以交變的磁場(chǎng)。從0開始逐漸加大交變的磁場(chǎng)(勵(lì)磁電流)使鐵芯達(dá)到飽和狀態(tài),然后再慢慢減小勵(lì)磁電流到零,以消除剩磁。對(duì)于電流互感器退磁,一次繞組開路,二次繞組通以工頻電流,從零開始逐漸增加到一定的電流值(該電流值與互感器的設(shè)計(jì)測(cè)量上限有關(guān),一般為額定電流的20-50%左右??梢噪娏骰ジ衅麟娏骰ジ衅鬟@樣判斷,如果電流突然急劇變大。廣泛采用電液位計(jì),應(yīng)用在江河、琥珀、水庫、渠道、水電站等工程中。特點(diǎn)常用的水位計(jì)有四種:玻璃管式,平板式、雙色水位計(jì)和低地位水位計(jì)。玻璃管式水位計(jì)玻璃管式水位計(jì),公稱壓力一般不超過1.6MPa,公稱直徑有DN15和DN20兩種,玻璃管內(nèi)徑不應(yīng)小于8mm,厚度不小于3mm。玻璃管式水位計(jì)主要由汽旋塞,水旋塞,玻璃管、排污旋塞和連接法蘭等組成。鍋爐內(nèi)的水位高低和變化,透過玻璃管顯示出來。玻璃管的中心線要與水位計(jì)汽、水旋塞的中心線同心,以防止玻璃管受扭曲應(yīng)力而破裂。為了防止玻璃管爆破傷人,在帶有鋼球的水位計(jì)內(nèi),在旋塞內(nèi)配有彈子,汽、水爆破的沖力使彈子自動(dòng)關(guān)閉汽、水旋塞。同時(shí)還應(yīng)安裝防護(hù)罩。防護(hù)罩一般用較厚的耐溫的鋼化玻璃板制成。烏蘭浩特市批發(fā)韓國(guó)Autovalve閥門ACV131D-100A-S10

    烏蘭浩特市批發(fā)韓國(guó)Autovalve閥門ACV131D-100A-S10

    KGT-L2M1D1R KGT-L2M1D1Y KGT-L2M1D1G KGT-L2M1D1A KGT-L2M1D1W,
    KGT-L2M1D2R KGT-L2M1D2Y KGT-L2M1D2G KGT-L2M1D2A KGT-L2M1D2W,
    KGT-L2M1D3R KGT-L2M1D3Y KGT-L2M1D3G KGT-L2M1D3A KGT-L2M1D3W,
    KGT-L2M2D1R KGT-L2M2D1Y KGT-L2M2D1G KGT-L2M2D1A KGT-L2M2D1W
    KGT-L2M2D2R KGT-L2M2D2Y KGT-L2M2D2G KGT-L2M2D2A KGT-L2M2D2W,
    KGT-L2M2D3R KGT-L2M2D3Y KGT-L2M2D3G KGT-L2M2D3A KGT-L2M2D3W,
    KGT-L2M2V2R KGT-L2M2V2Y KGT-L2M2V2G KGT-L2M2V2A KGT-L2M2V2W,
    KGT-L2M2V3R KGT-L2M2V3Y KGT-L2M2V3G KGT-L2M2V3A KGT-L2M2V3W
    KGT-L2R1D1R KGT-L2R1D1Y KGT-L2R1D1G KGT-L2R1D1A KGT-L2R1D1W,
    KGT-L2R1D2R KGT-L2R1D2Y KGT-L2R1D2G KGT-L2R1D2A KGT-L2R1D2W,
    KGT-L2R1D3R KGT-L2R1D3Y KGT-L2R1D3G KGT-L2R1D3A KGT-L2R1D3W,
    KGT-L2R1V2R KGT-L2R1V2Y KGT-L2R1V2G KGT-L2R1V2A KGT-L2R1V2W,
    KGT-L2R1V3R KGT-L2R1V3Y KGT-L2R1V3G KGT-L2R1V3A KGT-L2R1V3W
    KGT-L2R2D1R KGT-L2R2D1Y KGT-L2R2D1G KGT-L2R2D1A KGT-L2R2D1W,
    KGT-L2R2D2R KGT-L2R2D2Y KGT-L2R2D2G KGT-L2R2D2A KGT-L2R2D2W,
    KGT-L2R2D3R KGT-L2R2D3Y KGT-L2R2D3G KGT-L2R2D3A KGT-L2R2D3W,
    KGT-L2R2V2R KGT-L2R2V2Y KGT-L2R2V2G KGT-L2R2V2A KGT-L2R2V2W,
    KGT-L2R2V3R KGT-L2R2V3Y KGT-L2R2V3G KGT-L2R2V3A KGT-L2R2V3W

    控制極G通過按鈕開關(guān)SB接在1.5V直流電源的正極(這里使用的是KP1型晶閘管,若采用KP5型,應(yīng)接在3V直流電源的正極)。晶閘管與電源的這種連接方式叫做正向連接,也就是說,給晶閘管陽極和控制極所加的都是正向電壓。合上電源開關(guān)S,小燈泡不亮,說明晶閘管沒有導(dǎo)通;再按一下按鈕開關(guān)SB,給控制極輸入一個(gè)觸發(fā)電壓,小燈泡亮了,說明晶閘管導(dǎo)通了。這個(gè)演示實(shí)驗(yàn)給了我們什么啟發(fā)呢?這個(gè)實(shí)驗(yàn)告訴我們,要使晶閘管導(dǎo)通,一是在它的陽極A與陰極K之間外加正向電壓,二是在它的控制極G與陰極K之間輸入一個(gè)正向觸發(fā)電壓。晶閘管導(dǎo)通后,松開按鈕開關(guān),去掉觸發(fā)電壓,仍然維持導(dǎo)通狀態(tài)。晶閘管特點(diǎn)“一觸即發(fā)”。但是,如果陽極或控制極外加的是反向電壓。是可以工作的,多數(shù)變頻器的母線電壓下限為400V,即是當(dāng)直流母線電壓降至400V以下時(shí),變頻器才報(bào)告直流母線低電壓故障。當(dāng)兩相輸入時(shí),直流母線電壓為380*1.2=452V400V。當(dāng)變頻器不運(yùn)行時(shí),由于平波電容的作用,直流電壓也可達(dá)到正常值,新型的變頻器都是采用PWM控制技術(shù),調(diào)壓調(diào)頻的工作在逆變橋完成,所以在低頻段輸入缺相仍可以正常工作,但因?yàn)檩斎腚妷旱洼敵鲭妷旱?,造成異步電機(jī)轉(zhuǎn)矩低,頻率上不去。3)變頻器顯示過流出現(xiàn)這種故障顯示時(shí),首先檢查加速時(shí)間參數(shù)是否太短,力矩提升參數(shù)是否太大,然后檢查負(fù)載是否太重。如果無這些現(xiàn)象,可以斷開輸出側(cè)的電流互感器和直流側(cè)的霍爾電流檢測(cè)點(diǎn),復(fù)位后運(yùn)行,看是否出現(xiàn)過流現(xiàn)象。烏蘭浩特市批發(fā)韓國(guó)Autovalve閥門ACV131D-100A-S10

    烏蘭浩特市批發(fā)韓國(guó)Autovalve閥門ACV131D-100A-S10

     

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