朝陽市BUMHAN電抗器BHTB-SA300,BHTB-SA500,BHTB-SA1K韓國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
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RTD-2A2-W RTD-2A2-X RTD-2A2-Y RTD-2A2-Z
RTD-2A3-W RTD-2A3-X RTD-2A3-Y RTD-2A3-Z
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RTD-2A8-W RTD-2A8-X RTD-2A8-Y RTD-2A8-Z
RTD-2AR-W RTD-2AR-X RTD-2AR-Y RTD-2AR-Z
RTD-2AN-W RTD-2AN-X RTD-2AN-Y RTD-2AN-Z
RTD-2B1-W RTD-2B1-X RTD-2B1-Y RTD-2B1-Z
RTD-2B2-W RTD-2B2-X RTD-2B2-Y RTD-2B2-Z
RTD-2B3-W RTD-2B3-X RTD-2B3-Y RTD-2B3-Z
RTD-2B4-W RTD-2B4-X RTD-2B4-Y RTD-2B4-Z
RTD-2B5-W RTD-2B5-X RTD-2B5-Y RTD-2B5-Z
RTD-2B6-W RTD-2B6-X RTD-2B6-Y RTD-2B6-Z
RTD-2B7-W RTD-2B7-X RTD-2B7-Y RTD-2B7-Z
RTD-2B8-W RTD-2B8-X RTD-2B8-Y RTD-2B8-Z
RTD-2BR-W RTD-2BR-X RTD-2BR-Y RTD-2BR-Z
RTD-2BN-W RTD-2BN-X RTD-2BN-Y RTD-2BN-Z
RTD-2C1-W RTD-2C1-X RTD-2C1-Y RTD-2C1-Z
RTD-2C2-W RTD-2C2-X RTD-2C2-Y RTD-2C2-Z
RTD-2C3-W RTD-2C3-X RTD-2C3-Y RTD-2C3-Z
RTD-2C4-W RTD-2C4-X RTD-2C4-Y RTD-2C4-Z
RTD-2C5-W RTD-2C5-X RTD-2C5-Y RTD-2C5-Z
RTD-2C6-W RTD-2C6-X RTD-2C6-Y RTD-2C6-Z
又稱為SoftStarter。它不僅實現(xiàn)在整個起動過程中無沖擊而平滑的起動電機，而且可根據(jù)電動機負載的特性來調(diào)節(jié)起動過程中的參數(shù)，如限流值、起動時間等。此外，它還具有多種對電機保護功能，這就從根本上解決了傳統(tǒng)的降壓起動設備的諸多弊端。發(fā)展趨勢編輯隨著國產(chǎn)變頻器產(chǎn)業(yè)的迅速發(fā)展，變頻器的價格不再高高在上，它不僅解決了電機啟動產(chǎn)生大沖擊電流的問題，并且具有很好的節(jié)能效果，因此，曾經(jīng)風光一時的軟啟動器似乎有些沒落，聲音越來越小。但是軟啟動器面臨的替代壓力確實越來越大，[1]這種情況在尤為明顯。由于工業(yè)技術一直較為落后，在十多年前，的變頻器產(chǎn)業(yè)剛剛起步，沒有定價權，國內(nèi)市場大部分為品牌占據(jù)，變頻器的成本一直居高不下。
朝陽市BUMHAN電抗器BHTB-SA300,BHTB-SA500,BHTB-SA1K
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RTD-2ER-W RTD-2ER-X RTD-2ER-Y RTD-2ER-Z
RTD-2EN-W RTD-2EN-X RTD-2EN-Y RTD-2EN-Z
RTD-2F1-W RTD-2F1-X RTD-2F1-Y RTD-2F1-Z
RTD-2F2-W RTD-2F2-X RTD-2F2-Y RTD-2F2-Z
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RTD-2FR-W RTD-2FR-X RTD-2FR-Y RTD-2FR-Z
RTD-2FN-W RTD-2FN-X RTD-2FN-Y RTD-2FN-Z
RTD-2G1-W RTD-2G1-X RTD-2G1-Y RTD-2G1-Z
RTD-2G2-W RTD-2G2-X RTD-2G2-Y RTD-2G2-Z
RTD-2G3-W RTD-2G3-X RTD-2G3-Y RTD-2G3-Z
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RTD-2G6-W RTD-2G6-X RTD-2G6-Y RTD-2G6-Z
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RTD-2G8-W RTD-2G8-X RTD-2G8-Y RTD-2G8-Z
RTD-2GR-W RTD-2GR-X RTD-2GR-Y RTD-2GR-Z
RTD-2GN-W RTD-2GN-X RTD-2GN-Y RTD-2GN-Z
RTD-2H1-W RTD-2H1-X RTD-2H1-Y RTD-2H1-Z
RTD-2H2-W RTD-2H2-X RTD-2H2-Y RTD-2H2-Z
RTD-2H3-W RTD-2H3-X RTD-2H3-Y RTD-2H3-Z
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RTD-2HR-W RTD-2HR-X RTD-2HR-Y RTD-2HR-Z
RTD-2HN-W RTD-2HN-X RTD-2HN-Y RTD-2HN-Z
RTD-2I1-W RTD-2I1-X RTD-2I1-Y RTD-2I1-Z
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RTD-2I4-W RTD-2I4-X RTD-2I4-Y RTD-2I4-Z
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RTD-2K1-W RTD-2K1-X RTD-2K1-Y RTD-2K1-Z
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RTD-2KR-W RTD-2KR-X RTD-2KR-Y RTD-2KR-Z
RTD-2KN-W RTD-2KN-X RTD-2KN-Y RTD-2KN-Z
RTD-2L1-W RTD-2L1-X RTD-2L1-Y RTD-2L1-Z
RTD-2L2-W RTD-2L2-X RTD-2L2-Y RTD-2L2-Z
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RTD-2LR-W RTD-2LR-X RTD-2LR-Y RTD-2LR-Z
RTD-2LN-W RTD-2LN-X RTD-2LN-Y RTD-2LN-Z
RTD-2R1-W RTD-2R1-X RTD-2R1-Y RTD-2R1-Z
RTD-2R2-W RTD-2R2-X RTD-2R2-Y RTD-2R2-Z
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RTD-2R8-W RTD-2R8-X RTD-2R8-Y RTD-2R8-Z
RTD-2RR-W RTD-2RR-X RTD-2RR-Y RTD-2RR-Z
RTD-2RN-W RTD-2RN-X RTD-2RN-Y RTD-2RN-Z
RTD-4A1-W RTD-4A1-X RTD-4A1-Y RTD-4A1-Z
RTD-4A2-W RTD-4A2-X RTD-4A2-Y RTD-4A2-Z
RTD-4A3-W RTD-4A3-X RTD-4A3-Y RTD-4A3-Z
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RTD-4A8-W RTD-4A8-X RTD-4A8-Y RTD-4A8-Z
RTD-4AR-W RTD-4AR-X RTD-4AR-Y RTD-4AR-Z
RTD-4AN-W RTD-4AN-X RTD-4AN-Y RTD-4AN-Z
RTD-4B1-W RTD-4B1-X RTD-4B1-Y RTD-4B1-Z
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RTD-4B8-W RTD-4B8-X RTD-4B8-Y RTD-4B8-Z
RTD-4BR-W RTD-4BR-X RTD-4BR-Y RTD-4BR-Z
RTD-4BN-W RTD-4BN-X RTD-4BN-Y RTD-4BN-Z
RTD-4C1-W RTD-4C1-X RTD-4C1-Y RTD-4C1-Z
RTD-4C2-W RTD-4C2-X RTD-4C2-Y RTD-4C2-Z
RTD-4C3-W RTD-4C3-X RTD-4C3-Y RTD-4C3-Z
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RTD-4C6-W RTD-4C6-X RTD-4C6-Y RTD-4C6-Z
RTD-4C7-W RTD-4C7-X RTD-4C7-Y RTD-4C7-Z
RTD-4C8-W RTD-4C8-X RTD-4C8-Y RTD-4C8-Z
RTD-4CR-W RTD-4CR-X RTD-4CR-Y RTD-4CR-Z
RTD-4CN-W RTD-4CN-X RTD-4CN-Y RTD-4CN-Z
RTD-4D1-W RTD-4D1-X RTD-4D1-Y RTD-4D1-Z
RTD-4D2-W RTD-4D2-X RTD-4D2-Y RTD-4D2-Z
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RTD-4D4-W RTD-4D4-X RTD-4D4-Y RTD-4D4-Z
RTD-4D5-W RTD-4D5-X RTD-4D5-Y RTD-4D5-Z
RTD-4D6-W RTD-4D6-X RTD-4D6-Y RTD-4D6-Z
RTD-4D7-W RTD-4D7-X RTD-4D7-Y RTD-4D7-Z
RTD-4D8-W RTD-4D8-X RTD-4D8-Y RTD-4D8-Z
RTD-4DR-W RTD-4DR-X RTD-4DR-Y RTD-4DR-Z
RTD-4DN-W RTD-4DN-X RTD-4DN-Y RTD-4DN-Z
RTD-4E1-W RTD-4E1-X RTD-4E1-Y RTD-4E1-Z
RTD-4E2-W RTD-4E2-X RTD-4E2-Y RTD-4E2-Z
RTD-4E3-W RTD-4E3-X RTD-4E3-Y RTD-4E3-Z
RTD-4E4-W RTD-4E4-X RTD-4E4-Y RTD-4E4-Z
RTD-4E5-W RTD-4E5-X RTD-4E5-Y RTD-4E5-Z
RTD-4E6-W RTD-4E6-X RTD-4E6-Y RTD-4E6-Z
RTD-4E7-W RTD-4E7-X RTD-4E7-Y RTD-4E7-Z
因為BG1集電極與BG2基極相連，IC1又是BG2的基極電流Ib2。BG2又把比Ib2（Ib1）放大了β2的集電極電流IC2送回BG1的基極放大。如此循環(huán)放大，直到BGBG2完全導通。實際這一過程是“一觸即發(fā)”的過程，對可控硅來說，觸發(fā)信號加入控制極，可控硅立即導通。導通的時間主要決定于可控硅的性能。可控硅一經(jīng)觸發(fā)導通后，由于循環(huán)反饋的原因，流入BG1基極的電流已不只是初始的Ib1，而是經(jīng)過BGBG2放大后的電流（β1*β2*Ib1）這一電流遠大于Ib1，足以保持BG1的持續(xù)導通。此時觸發(fā)信號即使消失，可控硅仍保持導通狀態(tài)只有斷開電源Ea或降低Ea，使BGBG2中的集電極電流小于維持導通的值時。
朝陽市BUMHAN電抗器BHTB-SA300,BHTB-SA500,BHTB-SA1K
RTD-4E8-W RTD-4E8-X RTD-4E8-Y RTD-4E8-Z
RTD-4ER-W RTD-4ER-X RTD-4ER-Y RTD-4ER-Z
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RTD-4F1-W RTD-4F1-X RTD-4F1-Y RTD-4F1-Z
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RTD-4F8-W RTD-4F8-X RTD-4F8-Y RTD-4F8-Z
RTD-4FR-W RTD-4FR-X RTD-4FR-Y RTD-4FR-Z
RTD-4FN-W RTD-4FN-X RTD-4FN-Y RTD-4FN-Z
RTD-4G1-W RTD-4G1-X RTD-4G1-Y RTD-4G1-Z
RTD-4G2-W RTD-4G2-X RTD-4G2-Y RTD-4G2-Z
RTD-4G3-W RTD-4G3-X RTD-4G3-Y RTD-4G3-Z
RTD-4G4-W RTD-4G4-X RTD-4G4-Y RTD-4G4-Z
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RTD-4G6-W RTD-4G6-X RTD-4G6-Y RTD-4G6-Z
RTD-4G7-W RTD-4G7-X RTD-4G7-Y RTD-4G7-Z
RTD-4G8-W RTD-4G8-X RTD-4G8-Y RTD-4G8-Z
RTD-4GR-W RTD-4GR-X RTD-4GR-Y RTD-4GR-Z
RTD-4GN-W RTD-4GN-X RTD-4GN-Y RTD-4GN-Z
RTD-4H1-W RTD-4H1-X RTD-4H1-Y RTD-4H1-Z
RTD-4H2-W RTD-4H2-X RTD-4H2-Y RTD-4H2-Z
RTD-4H3-W RTD-4H3-X RTD-4H3-Y RTD-4H3-Z
RTD-4H4-W RTD-4H4-X RTD-4H4-Y RTD-4H4-Z
RTD-4H5-W RTD-4H5-X RTD-4H5-Y RTD-4H5-Z
RTD-4H6-W RTD-4H6-X RTD-4H6-Y RTD-4H6-Z
RTD-4H7-W RTD-4H7-X RTD-4H7-Y RTD-4H7-Z
RTD-4H8-W RTD-4H8-X RTD-4H8-Y RTD-4H8-Z
RTD-4HR-W RTD-4HR-X RTD-4HR-Y RTD-4HR-Z
RTD-4HN-W RTD-4HN-X RTD-4HN-Y RTD-4HN-Z
RTD-4I1-W RTD-4I1-X RTD-4I1-Y RTD-4I1-Z
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否則，當故障發(fā)生絲熔斷時會出現(xiàn)持續(xù)飛弧、引燃、絲燒毀、連同接觸件一起熔融、絲標記無法辨認等現(xiàn)象。當然，劣質(zhì)絲的分斷能力達不到標準規(guī)定的要求，使用時同樣會發(fā)生上述的危害。[2]分類按保護形式分，可分為：過電流保護與過熱保護。用于過電流保護的絲就是平常說的絲（也叫限流絲）。用于過熱保護的絲一般被稱為"溫度絲"。溫度絲又分為低熔點合金形與感溫觸發(fā)形還有記憶合金形等等（溫度絲是防止發(fā)熱電器或易發(fā)熱電器溫度過高而進行保護的，例如：電吹風、電熨斗、電飯鍋、電爐、變壓器、電動機等等；它響應于用電電器溫升的升高，不會理會電路的工作電流大小。其工作原理不同于"限流絲"）。按使用范圍分，可分為：電力絲、機床絲、電器儀表絲（電子絲）、汽車絲。
朝陽市BUMHAN電抗器BHTB-SA300,BHTB-SA500,BHTB-SA1K
RTD-9F6-W RTD-9F6-X RTD-9F6-Y RTD-9F6-Z
RTD-9F7-W RTD-9F7-X RTD-9F7-Y RTD-9F7-Z
RTD-9F8-W RTD-9F8-X RTD-9F8-Y RTD-9F8-Z
RTD-9FR-W RTD-9FR-X RTD-9FR-Y RTD-9FR-Z
RTD-9FN-W RTD-9FN-X RTD-9FN-Y RTD-9FN-Z
RTD-9G1-W RTD-9G1-X RTD-9G1-Y RTD-9G1-Z
RTD-9G2-W RTD-9G2-X RTD-9G2-Y RTD-9G2-Z
RTD-9G3-W RTD-9G3-X RTD-9G3-Y RTD-9G3-Z
RTD-9G4-W RTD-9G4-X RTD-9G4-Y RTD-9G4-Z
RTD-9G5-W RTD-9G5-X RTD-9G5-Y RTD-9G5-Z
RTD-9G6-W RTD-9G6-X RTD-9G6-Y RTD-9G6-Z
RTD-9G7-W RTD-9G7-X RTD-9G7-Y RTD-9G7-Z
RTD-9G8-W RTD-9G8-X RTD-9G8-Y RTD-9G8-Z
RTD-9GR-W RTD-9GR-X RTD-9GR-Y RTD-9GR-Z
RTD-9GN-W RTD-9GN-X RTD-9GN-Y RTD-9GN-Z
RTD-9H1-W RTD-9H1-X RTD-9H1-Y RTD-9H1-Z
RTD-9H2-W RTD-9H2-X RTD-9H2-Y RTD-9H2-Z
RTD-9H3-W RTD-9H3-X RTD-9H3-Y RTD-9H3-Z
RTD-9H4-W RTD-9H4-X RTD-9H4-Y RTD-9H4-Z
RTD-9H5-W RTD-9H5-X RTD-9H5-Y RTD-9H5-Z
RTD-9H6-W RTD-9H6-X RTD-9H6-Y RTD-9H6-Z
RTD-9H7-W RTD-9H7-X RTD-9H7-Y RTD-9H7-Z
RTD-9H8-W RTD-9H8-X RTD-9H8-Y RTD-9H8-Z
RTD-9HR-W RTD-9HR-X RTD-9HR-Y RTD-9HR-Z
RTD-9HN-W RTD-9HN-X RTD-9HN-Y RTD-9HN-Z
RTD-9I1-W RTD-9I1-X RTD-9I1-Y RTD-9I1-Z
RTD-9I2-W RTD-9I2-X RTD-9I2-Y RTD-9I2-Z
RTD-9I3-W RTD-9I3-X RTD-9I3-Y RTD-9I3-Z
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RTD-9I7-W RTD-9I7-X RTD-9I7-Y RTD-9I7-Z
RTD-9I8-W RTD-9I8-X RTD-9I8-Y RTD-9I8-Z
RTD-9IR-W RTD-9IR-X RTD-9IR-Y RTD-9IR-Z
RTD-9IN-W RTD-9IN-X RTD-9IN-Y RTD-9IN-Z
RTD-9J1-W RTD-9J1-X RTD-9J1-Y RTD-9J1-Z
RTD-9J2-W RTD-9J2-X RTD-9J2-Y RTD-9J2-Z
RTD-9J3-W RTD-9J3-X RTD-9J3-Y RTD-9J3-Z
RTD-9J4-W RTD-9J4-X RTD-9J4-Y RTD-9J4-Z
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RTD-9J6-W RTD-9J6-X RTD-9J6-Y RTD-9J6-Z
RTD-9J7-W RTD-9J7-X RTD-9J7-Y RTD-9J7-Z
如霍爾元件、運放電路等。電源與驅(qū)動板啟動顯示過電流通常是由于驅(qū)動電路或逆變模塊損壞引起。空載輸出電壓正常，帶載后顯示過載或過電流通常是由于參數(shù)設置不當或驅(qū)動電路老化，模塊損壞引起。技術系列編輯過電流保護在變頻器維修中,過電流保護的對象主要指帶有突變性質(zhì)的、電流的峰值超過了變頻器的容許值的情形.由于逆變器的過載能力較差,所以變頻器的過電流保護是至關重要的一環(huán),迄今為止,已發(fā)展得十分完善.過電流的原因工作中過電流即拖動系統(tǒng)在工作過程中出現(xiàn)過電流.其原因大致來自以下幾方面:①電動機遇到?jīng)_擊負載,或傳動機構出現(xiàn)“卡住”現(xiàn)象,引起電動機電流的突然增加.②變頻器的輸出側短路,如輸出端到電動機之間的連接線發(fā)生相互短路,或電動機內(nèi)部發(fā)生短路等.③變頻器自身工作的不正常,如逆變橋中同一橋臂的兩個逆變器件在不斷交替的工作過程中出現(xiàn)異常。
朝陽市BUMHAN電抗器BHTB-SA300,BHTB-SA500,BHTB-SA1K
RTD-9J8-W RTD-9J8-X RTD-9J8-Y RTD-9J8-Z
RTD-9JR-W RTD-9JR-X RTD-9JR-Y RTD-9JR-Z
RTD-9JN-W RTD-9JN-X RTD-9JN-Y RTD-9JN-Z
RTD-9K1-W RTD-9K1-X RTD-9K1-Y RTD-9K1-Z
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RTD-9K8-W RTD-9K8-X RTD-9K8-Y RTD-9K8-Z
RTD-9KR-W RTD-9KR-X RTD-9KR-Y RTD-9KR-Z
RTD-9KN-W RTD-9KN-X RTD-9KN-Y RTD-9KN-Z
RTD-9L1-W RTD-9L1-X RTD-9L1-Y RTD-9L1-Z
RTD-9L2-W RTD-9L2-X RTD-9L2-Y RTD-9L2-Z
RTD-9L3-W RTD-9L3-X RTD-9L3-Y RTD-9L3-Z
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RTD-9L7-W RTD-9L7-X RTD-9L7-Y RTD-9L7-Z
RTD-9L8-W RTD-9L8-X RTD-9L8-Y RTD-9L8-Z
RTD-9LR-W RTD-9LR-X RTD-9LR-Y RTD-9LR-Z
RTD-9LN-W RTD-9LN-X RTD-9LN-Y RTD-9LN-Z
RTD-9R1-W RTD-9R1-X RTD-9R1-Y RTD-9R1-Z
RTD-9R2-W RTD-9R2-X RTD-9R2-Y RTD-9R2-Z
RTD-9R3-W RTD-9R3-X RTD-9R3-Y RTD-9R3-Z
RTD-9R4-W RTD-9R4-X RTD-9R4-Y RTD-9R4-Z
RTD-9R5-W RTD-9R5-X RTD-9R5-Y RTD-9R5-Z
RTD-9R6-W RTD-9R6-X RTD-9R6-Y RTD-9R6-Z
RTD-9R7-W RTD-9R7-X RTD-9R7-Y RTD-9R7-Z
RTD-9R8-W RTD-9R8-X RTD-9R8-Y RTD-9R8-Z
RTD-9RR-W RTD-9RR-X RTD-9RR-Y RTD-9RR-Z
RTD-9RN-W RTD-9RN-X RTD-9RN-Y RTD-9RN-Z
造成鐵心過度飽和磁化，發(fā)熱嚴重乃至燒毀線圈；同時，磁路過度飽和磁化后，使誤差增大。電流互感器在正常工作時，二次側與測量儀表和繼電器等電流線圈串聯(lián)使用，測量儀表和繼電器等電流線圈阻抗很小，二次側近似于短路。CT二次電流的大小由一次電流決定，二次電生的磁勢，是平衡一次電流的磁勢的。若突然使其開路，則勵磁電動勢由數(shù)值很小的值驟變?yōu)楹艽蟮闹?，鐵芯中的磁通呈現(xiàn)嚴重飽和的平頂波，因此二次側繞組將在磁通過零時感應出很高的尖頂波，其值可達到數(shù)千甚至上萬伏，危及工作人員的及儀表的絕緣性能。另外，二次側開路使二次側電壓達幾百伏，一旦觸及將造成觸電事故。因此，電流互感器二次側都備有短路開關，防止二次側開路。在使用過程中。
朝陽市BUMHAN電抗器BHTB-SA300,BHTB-SA500,BHTB-SA1K
