杭州市批發(fā)shinhwa繼電器SSC-225DA2,韓國(guó)Sinwoo S-CON變送器。中山立訊電氣有限公司,中山朗立電氣有限公司
T/C-2A1-W T/C-2A1-X T/C-2A1-Y T/C-2A1-Z
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T/C-2A8-W T/C-2A8-X T/C-2A8-Y T/C-2A8-Z
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T/C-2B3-W T/C-2B3-X T/C-2B3-Y T/C-2B3-Z
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T/C-2BR-W T/C-2BR-X T/C-2BR-Y T/C-2BR-Z
T/C-2BN-W T/C-2BN-X T/C-2BN-Y T/C-2BN-Z
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T/C-2C7-W T/C-2C7-X T/C-2C7-Y T/C-2C7-Z
T/C-2C8-W T/C-2C8-X T/C-2C8-Y T/C-2C8-Z
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T/C-2ER-W T/C-2ER-X T/C-2ER-Y T/C-2ER-Z
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T/C-2R2-W T/C-2R2-X T/C-2R2-Y T/C-2R2-Z
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T/C-2R7-W T/C-2R7-X T/C-2R7-Y T/C-2R7-Z
T/C-2R8-W T/C-2R8-X T/C-2R8-Y T/C-2R8-Z
T/C-2RR-W T/C-2RR-X T/C-2RR-Y T/C-2RR-Z
T/C-2RN-W T/C-2RN-X T/C-2RN-Y T/C-2RN-Z
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T/C-4A2-W T/C-4A2-X T/C-4A2-Y T/C-4A2-Z
T/C-4A3-W T/C-4A3-X T/C-4A3-Y T/C-4A3-Z
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以利于線路安裝和連接其他設(shè)備，而且電纜進(jìn)入口應(yīng)有可靠的絕緣、防水、防塵措施，確保該道路交通信號(hào)燈不低于應(yīng)有的IP55防護(hù)等級(jí)。14)紅色、黃色LED管發(fā)光強(qiáng)度大于600CD，采用國(guó)外公司生產(chǎn)的TS芯片封裝。綠色LED管發(fā)光強(qiáng)度大于600CD，采用進(jìn)口芯片封裝。全屏燈LED管數(shù)量：全屏紅、黃、綠≥162粒15)LED使用壽命不少于80000小時(shí)，LED信號(hào)燈可視距離不低于500米，單燈功率小于15W，工作電壓在AC180－260之間，無(wú)顏色變化。16)PCB電路板要采用阻燃材料制作的剛性印刷電路板，并進(jìn)行鍍錫處理，鍍層無(wú)氧化，焊接面加綠色阻焊層，板厚1.8MM以上。17)每個(gè)發(fā)光單元的引線，應(yīng)采用符合國(guó)家電工標(biāo)準(zhǔn)的導(dǎo)線。
杭州市批發(fā)shinhwa繼電器SSC-225DA2,
T/C-4A5-W T/C-4A5-X T/C-4A5-Y T/C-4A5-Z
T/C-4A6-W T/C-4A6-X T/C-4A6-Y T/C-4A6-Z
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T/C-4A8-W T/C-4A8-X T/C-4A8-Y T/C-4A8-Z
T/C-4AR-W T/C-4AR-X T/C-4AR-Y T/C-4AR-Z
T/C-4AN-W T/C-4AN-X T/C-4AN-Y T/C-4AN-Z
T/C-4B1-W T/C-4B1-X T/C-4B1-Y T/C-4B1-Z
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T/C-4B7-W T/C-4B7-X T/C-4B7-Y T/C-4B7-Z
T/C-4B8-W T/C-4B8-X T/C-4B8-Y T/C-4B8-Z
T/C-4BR-W T/C-4BR-X T/C-4BR-Y T/C-4BR-Z
T/C-4BN-W T/C-4BN-X T/C-4BN-Y T/C-4BN-Z
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T/C-4C7-W T/C-4C7-X T/C-4C7-Y T/C-4C7-Z
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T/C-4CR-W T/C-4CR-X T/C-4CR-Y T/C-4CR-Z
T/C-4CN-W T/C-4CN-X T/C-4CN-Y T/C-4CN-Z
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T/C-4DN-W T/C-4DN-X T/C-4DN-Y T/C-4DN-Z
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T/C-7BR-W T/C-7BR-X T/C-7BR-Y T/C-7BR-Z
T/C-7BN-W T/C-7BN-X T/C-7BN-Y T/C-7BN-Z
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采用交—直—交工作方式，即是輸入為交流電源，交流電壓三相整流橋整流后變?yōu)橹绷麟妷?，然后直流電壓?jīng)三相橋式逆變電路變換為調(diào)壓調(diào)頻的三相交流電輸出到負(fù)載。當(dāng)變頻器剛上電時(shí)，由于直流側(cè)的平波電容容量非常大，充電電流很大，通常采用一個(gè)起動(dòng)電阻來(lái)限制充電電流，常見(jiàn)的變頻起動(dòng)兩種電路，如圖1所示。充電完成后，控制電路通過(guò)繼電器的觸點(diǎn)或晶閘管將電阻短路，起動(dòng)電路故障一般表現(xiàn)為起動(dòng)電阻燒壞，變頻器報(bào)警顯示為直流母線電壓故障，一般設(shè)計(jì)者在設(shè)計(jì)變頻器的起動(dòng)電路時(shí)，為了減少變頻器的體積選擇起動(dòng)電阻，都選擇小一些，電阻值在10～50Ω，功率為10～50W。當(dāng)變頻器的交流輸入電源頻繁通時(shí)，或者旁路接觸器的觸點(diǎn)接觸不良時(shí)。
杭州市批發(fā)shinhwa繼電器SSC-225DA2,
T/C-7C8-W T/C-7C8-X T/C-7C8-Y T/C-7C8-Z
T/C-7CR-W T/C-7CR-X T/C-7CR-Y T/C-7CR-Z
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T/C-7D1-W T/C-7D1-X T/C-7D1-Y T/C-7D1-Z
T/C-7D2-W T/C-7D2-X T/C-7D2-Y T/C-7D2-Z
T/C-7D3-W T/C-7D3-X T/C-7D3-Y T/C-7D3-Z
T/C-7D4-W T/C-7D4-X T/C-7D4-Y T/C-7D4-Z
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T/C-7D6-W T/C-7D6-X T/C-7D6-Y T/C-7D6-Z
T/C-7D7-W T/C-7D7-X T/C-7D7-Y T/C-7D7-Z
T/C-7D8-W T/C-7D8-X T/C-7D8-Y T/C-7D8-Z
T/C-7DR-W T/C-7DR-X T/C-7DR-Y T/C-7DR-Z
T/C-7DN-W T/C-7DN-X T/C-7DN-Y T/C-7DN-Z
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T/C-7E7-W T/C-7E7-X T/C-7E7-Y T/C-7E7-Z
T/C-7E8-W T/C-7E8-X T/C-7E8-Y T/C-7E8-Z
T/C-7ER-W T/C-7ER-X T/C-7ER-Y T/C-7ER-Z
T/C-7EN-W T/C-7EN-X T/C-7EN-Y T/C-7EN-Z
T/C-7R1-W T/C-7R1-X T/C-7R1-Y T/C-7R1-Z
T/C-7R2-W T/C-7R2-X T/C-7R2-Y T/C-7R2-Z
T/C-7R3-W T/C-7R3-X T/C-7R3-Y T/C-7R3-Z
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T/C-7R5-W T/C-7R5-X T/C-7R5-Y T/C-7R5-Z
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T/C-7R7-W T/C-7R7-X T/C-7R7-Y T/C-7R7-Z
T/C-7R8-W T/C-7R8-X T/C-7R8-Y T/C-7R8-Z
T/C-7RR-W T/C-7RR-X T/C-7RR-Y T/C-7RR-Z
T/C-7RN-W T/C-7RN-X T/C-7RN-Y T/C-7RN-Z
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在10%誤差曲線上確定電流互感器的允許二次負(fù)荷⑶按照對(duì)電流互感器二次負(fù)荷嚴(yán)重的短路類型，計(jì)算電流互感器的實(shí)際二次負(fù)荷⑷比較實(shí)際二次負(fù)荷與允許二次負(fù)荷。如實(shí)際二次負(fù)荷小于允許二次負(fù)荷，表示電流互感器的誤差不超過(guò)10%誤差：1）增大連接導(dǎo)線截面或縮短連接導(dǎo)線長(zhǎng)度，以減小實(shí)際二次負(fù)荷2）選擇比較大的電流互感器，減小一次電流倍數(shù)，增大允許二次負(fù)荷3）將電流互感器的二次繞組串聯(lián)起來(lái)，使允許二次負(fù)荷增大一倍。動(dòng)、熱穩(wěn)定度需校驗(yàn)電流互感器的動(dòng)穩(wěn)定度和熱穩(wěn)定度[9]，廠家的產(chǎn)品技術(shù)參數(shù)中都給出了動(dòng)穩(wěn)定倍數(shù)Kes和熱穩(wěn)定倍數(shù)Kt，因此按下列公式分別校驗(yàn)動(dòng)穩(wěn)定和熱定度即可。1）動(dòng)穩(wěn)定度校驗(yàn)Kes×I1N≥iSh2）熱穩(wěn)定度校驗(yàn)（KtI1n)2t≥I⑶∞tima式中。
杭州市批發(fā)shinhwa繼電器SSC-225DA2,
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S-CON300-D4X S-CON300-D4Y
S-CON300-D5X S-CON300-D5Y
S-CON300-DNX S-CON300-DNY
可將計(jì)數(shù)器分為同步計(jì)數(shù)器和異步計(jì)數(shù)器兩種。如果按照計(jì)數(shù)過(guò)程中數(shù)字增減分類，又可將計(jì)數(shù)器分為加法計(jì)數(shù)器、減法計(jì)數(shù)器和可逆計(jì)數(shù)器，隨時(shí)鐘信號(hào)不斷增加的為加法計(jì)數(shù)器，不斷減少的為減法計(jì)數(shù)器，可增可減的叫做可逆計(jì)數(shù)器。另外還有很多種分類不一一列舉，但是常用的是種分類，因?yàn)檫@種分類可以使人一目了然，知道這個(gè)計(jì)數(shù)器到底是什么觸發(fā)方式，以便于設(shè)計(jì)者進(jìn)行電路的設(shè)計(jì)。此外，也經(jīng)常按照計(jì)數(shù)器的計(jì)數(shù)進(jìn)制把計(jì)數(shù)器分為二進(jìn)制計(jì)數(shù)器、十進(jìn)制計(jì)數(shù)器等等。應(yīng)用編輯軟件簡(jiǎn)介計(jì)數(shù)器應(yīng)用包括通話、短信、數(shù)據(jù)等類別的記錄，數(shù)顯計(jì)數(shù)器數(shù)顯計(jì)數(shù)器并支持用戶自主選擇清零日期，以及按照類別添加提醒數(shù)值，如用戶可以選擇每月任一一天，或者天、后一天作為記錄循環(huán)清零日。
杭州市批發(fā)shinhwa繼電器SSC-225DA2,
