古冶區(qū)SANIL開關(guān)SKD-30M,M30,2-30mm,Non-sheild,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

MUL-2A1-W MUL-2A1-X MUL-2A1-Y MUL-2A1-Z
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MUL-2A7-W MUL-2A7-X MUL-2A7-Y MUL-2A7-Z
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MUL-2DR-W MUL-2DR-X MUL-2DR-Y MUL-2DR-Z
MUL-2DN-W MUL-2DN-X MUL-2DN-Y MUL-2DN-Z
MUL-2E1-W MUL-2E1-X MUL-2E1-Y MUL-2E1-Z
MUL-2E2-W MUL-2E2-X MUL-2E2-Y MUL-2E2-Z
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MUL-2E8-W MUL-2E8-X MUL-2E8-Y MUL-2E8-Z
MUL-2ER-W MUL-2ER-X MUL-2ER-Y MUL-2ER-Z
MUL-2EN-W MUL-2EN-X MUL-2EN-Y MUL-2EN-Z
MUL-2F1-W MUL-2F1-X MUL-2F1-Y MUL-2F1-Z
MUL-2F2-W MUL-2F2-X MUL-2F2-Y MUL-2F2-Z
MUL-2F3-W MUL-2F3-X MUL-2F3-Y MUL-2F3-Z
MUL-2F4-W MUL-2F4-X MUL-2F4-Y MUL-2F4-Z
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MUL-2F8-W MUL-2F8-X MUL-2F8-Y MUL-2F8-Z
MUL-2FR-W MUL-2FR-X MUL-2FR-Y MUL-2FR-Z
MUL-2FN-W MUL-2FN-X MUL-2FN-Y MUL-2FN-Z
MUL-2G1-W MUL-2G1-X MUL-2G1-Y MUL-2G1-Z
MUL-2G2-W MUL-2G2-X MUL-2G2-Y MUL-2G2-Z
MUL-2G3-W MUL-2G3-X MUL-2G3-Y MUL-2G3-Z
MUL-2G4-W MUL-2G4-X MUL-2G4-Y MUL-2G4-Z
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MUL-2G8-W MUL-2G8-X MUL-2G8-Y MUL-2G8-Z
MUL-2GR-W MUL-2GR-X MUL-2GR-Y MUL-2GR-Z
MUL-2GN-W MUL-2GN-X MUL-2GN-Y MUL-2GN-Z
MUL-2H1-W MUL-2H1-X MUL-2H1-Y MUL-2H1-Z
MUL-2H2-W MUL-2H2-X MUL-2H2-Y MUL-2H2-Z
MUL-2H3-W MUL-2H3-X MUL-2H3-Y MUL-2H3-Z
MUL-2H4-W MUL-2H4-X MUL-2H4-Y MUL-2H4-Z
MUL-2H5-W MUL-2H5-X MUL-2H5-Y MUL-2H5-Z
MUL-2H6-W MUL-2H6-X MUL-2H6-Y MUL-2H6-Z
MUL-2H7-W MUL-2H7-X MUL-2H7-Y MUL-2H7-Z
MUL-2H8-W MUL-2H8-X MUL-2H8-Y MUL-2H8-Z
MUL-2HR-W MUL-2HR-X MUL-2HR-Y MUL-2HR-Z
MUL-2HN-W MUL-2HN-X MUL-2HN-Y MUL-2HN-Z
MUL-4A1-W MUL-4A1-X MUL-4A1-Y MUL-4A1-Z
MUL-4A2-W MUL-4A2-X MUL-4A2-Y MUL-4A2-Z
MUL-4A3-W MUL-4A3-X MUL-4A3-Y MUL-4A3-Z
MUL-4A4-W MUL-4A4-X MUL-4A4-Y MUL-4A4-Z
MUL-4A5-W MUL-4A5-X MUL-4A5-Y MUL-4A5-Z
MUL-4A6-W MUL-4A6-X MUL-4A6-Y MUL-4A6-Z
MUL-4A7-W MUL-4A7-X MUL-4A7-Y MUL-4A7-Z
MUL-4A8-W MUL-4A8-X MUL-4A8-Y MUL-4A8-Z
MUL-4AR-W MUL-4AR-X MUL-4AR-Y MUL-4AR-Z
MUL-4AN-W MUL-4AN-X MUL-4AN-Y MUL-4AN-Z
MUL-4B1-W MUL-4B1-X MUL-4B1-Y MUL-4B1-Z

輸入阻抗為250W〗18．功率消耗:不大于30W19．正常工作環(huán)境:溫度范圍：0～50°C濕度范圍：10～85%R?H20．電源電壓:220V;50Hz21．外形尺寸:144′144′200mm22．開孔尺寸:138′138mm工作原理編輯每路輸入信號經(jīng)程控放大，24位分辨率A/D轉(zhuǎn)換，光電隔離送至單片機處理。從而消除了各輸入通道之間的干擾，消除了輸入通道與CPU之間的干擾。使用高精度數(shù)字溫度傳感器，進(jìn)行熱電偶的冷端溫度補償。為了提高長期穩(wěn)定性，本記錄儀放棄了傳統(tǒng)的用電位器調(diào)整放大倍數(shù)及零點的方法，代之以軟件程序調(diào)校法，并實現(xiàn)了放大倍數(shù)的程控放大。出廠前廠方對各項參數(shù)均已調(diào)試完成。用戶可通過鍵盤設(shè)定對系統(tǒng)誤差進(jìn)行平移校正。
古冶區(qū)SANIL開關(guān)SKD-30M,M30,2-30mm,Non-sheild,

MUL-4B2-W MUL-4B2-X MUL-4B2-Y MUL-4B2-Z
MUL-4B3-W MUL-4B3-X MUL-4B3-Y MUL-4B3-Z
MUL-4B4-W MUL-4B4-X MUL-4B4-Y MUL-4B4-Z
MUL-4B5-W MUL-4B5-X MUL-4B5-Y MUL-4B5-Z
MUL-4B6-W MUL-4B6-X MUL-4B6-Y MUL-4B6-Z
MUL-4B7-W MUL-4B7-X MUL-4B7-Y MUL-4B7-Z
MUL-4B8-W MUL-4B8-X MUL-4B8-Y MUL-4B8-Z
MUL-4BR-W MUL-4BR-X MUL-4BR-Y MUL-4BR-Z
MUL-4BN-W MUL-4BN-X MUL-4BN-Y MUL-4BN-Z
MUL-4C1-W MUL-4C1-X MUL-4C1-Y MUL-4C1-Z
MUL-4C2-W MUL-4C2-X MUL-4C2-Y MUL-4C2-Z
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MUL-4D3-W MUL-4D3-X MUL-4D3-Y MUL-4D3-Z
MUL-4D4-W MUL-4D4-X MUL-4D4-Y MUL-4D4-Z
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MUL-4D8-W MUL-4D8-X MUL-4D8-Y MUL-4D8-Z
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MUL-4E3-W MUL-4E3-X MUL-4E3-Y MUL-4E3-Z
MUL-4E4-W MUL-4E4-X MUL-4E4-Y MUL-4E4-Z
MUL-4E5-W MUL-4E5-X MUL-4E5-Y MUL-4E5-Z
MUL-4E6-W MUL-4E6-X MUL-4E6-Y MUL-4E6-Z
MUL-4E7-W MUL-4E7-X MUL-4E7-Y MUL-4E7-Z
MUL-4E8-W MUL-4E8-X MUL-4E8-Y MUL-4E8-Z
MUL-4ER-W MUL-4ER-X MUL-4ER-Y MUL-4ER-Z
MUL-4EN-W MUL-4EN-X MUL-4EN-Y MUL-4EN-Z
MUL-4F1-W MUL-4F1-X MUL-4F1-Y MUL-4F1-Z
MUL-4F2-W MUL-4F2-X MUL-4F2-Y MUL-4F2-Z
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MUL-4F4-W MUL-4F4-X MUL-4F4-Y MUL-4F4-Z

采用軟啟動器，可以控制電動機電壓，使其在啟動過程中逐漸升高，很自然地控制啟動電流，這就意味著電動機可以平穩(wěn)啟動，機械和電應(yīng)力降至。因此軟啟動器在市場上得到廣泛應(yīng)用，并且軟啟動器所附帶的軟停車功能有效地避免水泵停止時所產(chǎn)生的“水錘效應(yīng)”。異步電動機以其優(yōu)良的性能及無需維護(hù)的特點，在各行各業(yè)中得到廣泛的應(yīng)用。然而由于其起動時要產(chǎn)生較大沖擊電流（一般為額定電流的5-8倍），同時由于起動應(yīng)力較大，使負(fù)載設(shè)備的使用壽命降低。國家有關(guān)部門對電機起動早有明確規(guī)定，即電機起動時的電網(wǎng)電壓將不能超過15%。解決辦法有兩個：增大配電容量，采用限制電機起動電流的起動設(shè)備，如果僅僅為起動電機而增大配電容，從經(jīng)濟角度上來說。
古冶區(qū)SANIL開關(guān)SKD-30M,M30,2-30mm,Non-sheild,

MUL-4F5-W MUL-4F5-X MUL-4F5-Y MUL-4F5-Z
MUL-4F6-W MUL-4F6-X MUL-4F6-Y MUL-4F6-Z
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MUL-4F8-W MUL-4F8-X MUL-4F8-Y MUL-4F8-Z
MUL-4FR-W MUL-4FR-X MUL-4FR-Y MUL-4FR-Z
MUL-4FN-W MUL-4FN-X MUL-4FN-Y MUL-4FN-Z
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MUL-4G2-W MUL-4G2-X MUL-4G2-Y MUL-4G2-Z
MUL-4G3-W MUL-4G3-X MUL-4G3-Y MUL-4G3-Z
MUL-4G4-W MUL-4G4-X MUL-4G4-Y MUL-4G4-Z
MUL-4G5-W MUL-4G5-X MUL-4G5-Y MUL-4G5-Z
MUL-4G6-W MUL-4G6-X MUL-4G6-Y MUL-4G6-Z
MUL-4G7-W MUL-4G7-X MUL-4G7-Y MUL-4G7-Z
MUL-4G8-W MUL-4G8-X MUL-4G8-Y MUL-4G8-Z
MUL-4GR-W MUL-4GR-X MUL-4GR-Y MUL-4GR-Z
MUL-4GN-W MUL-4GN-X MUL-4GN-Y MUL-4GN-Z
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MUL-4H2-W MUL-4H2-X MUL-4H2-Y MUL-4H2-Z
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MUL-4HR-W MUL-4HR-X MUL-4HR-Y MUL-4HR-Z
MUL-4HN-W MUL-4HN-X MUL-4HN-Y MUL-4HN-Z
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MUL-7A2-W MUL-7A2-X MUL-7A2-Y MUL-7A2-Z
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MUL-7F2-W MUL-7F2-X MUL-7F2-Y MUL-7F2-Z

可以將傳感器固定在河底，用引壓管消除大氣壓力，從而直接測得水位。壓力式水位計有兩類。一類為氣泡型，在引壓管中不斷輸氣，用自動調(diào)節(jié)的壓力天平將水壓力轉(zhuǎn)換成機械轉(zhuǎn)角量，從而帶動記錄機構(gòu)。另一類為電測型，它應(yīng)用固態(tài)壓阻器件作傳感器，可直接將水壓力轉(zhuǎn)變成電壓模量或頻率量輸出,用導(dǎo)線傳輸至岸上進(jìn)行處理和記錄（圖2）。聲波式水位計是反射式水位計的一種，應(yīng)用聲波遇不同介面反射的原理來測定水位。分為氣介式和水介式兩類。氣介式以空氣為聲波的傳播介質(zhì)，換能器置于水面上方，由水面反射聲波，根據(jù)回波時間可計算并顯示出水位。儀器不接觸水體，完全擺脫水中泥沙，流速沖擊和水草等不利因素的影響。水介式是將換能器安裝在河底，向水面發(fā)射聲波。
古冶區(qū)SANIL開關(guān)SKD-30M,M30,2-30mm,Non-sheild,

MUL-7F3-W MUL-7F3-X MUL-7F3-Y MUL-7F3-Z
MUL-7F4-W MUL-7F4-X MUL-7F4-Y MUL-7F4-Z
MUL-7F5-W MUL-7F5-X MUL-7F5-Y MUL-7F5-Z
MUL-7F6-W MUL-7F6-X MUL-7F6-Y MUL-7F6-Z
MUL-7F7-W MUL-7F7-X MUL-7F7-Y MUL-7F7-Z
MUL-7F8-W MUL-7F8-X MUL-7F8-Y MUL-7F8-Z
MUL-7FR-W MUL-7FR-X MUL-7FR-Y MUL-7FR-Z
MUL-7FN-W MUL-7FN-X MUL-7FN-Y MUL-7FN-Z
MUL-7G1-W MUL-7G1-X MUL-7G1-Y MUL-7G1-Z
MUL-7G2-W MUL-7G2-X MUL-7G2-Y MUL-7G2-Z
MUL-7G3-W MUL-7G3-X MUL-7G3-Y MUL-7G3-Z
MUL-7G4-W MUL-7G4-X MUL-7G4-Y MUL-7G4-Z
MUL-7G5-W MUL-7G5-X MUL-7G5-Y MUL-7G5-Z
MUL-7G6-W MUL-7G6-X MUL-7G6-Y MUL-7G6-Z
MUL-7G7-W MUL-7G7-X MUL-7G7-Y MUL-7G7-Z
MUL-7G8-W MUL-7G8-X MUL-7G8-Y MUL-7G8-Z
MUL-7GR-W MUL-7GR-X MUL-7GR-Y MUL-7GR-Z
MUL-7GN-W MUL-7GN-X MUL-7GN-Y MUL-7GN-Z
MUL-7H1-W MUL-7H1-X MUL-7H1-Y MUL-7H1-Z
MUL-7H2-W MUL-7H2-X MUL-7H2-Y MUL-7H2-Z
MUL-7H3-W MUL-7H3-X MUL-7H3-Y MUL-7H3-Z
MUL-7H4-W MUL-7H4-X MUL-7H4-Y MUL-7H4-Z
MUL-7H5-W MUL-7H5-X MUL-7H5-Y MUL-7H5-Z
MUL-7H6-W MUL-7H6-X MUL-7H6-Y MUL-7H6-Z
MUL-7H7-W MUL-7H7-X MUL-7H7-Y MUL-7H7-Z
MUL-7H8-W MUL-7H8-X MUL-7H8-Y MUL-7H8-Z
MUL-7HR-W MUL-7HR-X MUL-7HR-Y MUL-7HR-Z
MUL-7HN-W MUL-7HN-X MUL-7HN-Y MUL-7HN-Z
MUL-9A1-W MUL-9A1-X MUL-9A1-Y MUL-9A1-Z
MUL-9A2-W MUL-9A2-X MUL-9A2-Y MUL-9A2-Z
MUL-9A3-W MUL-9A3-X MUL-9A3-Y MUL-9A3-Z
MUL-9A4-W MUL-9A4-X MUL-9A4-Y MUL-9A4-Z
MUL-9A5-W MUL-9A5-X MUL-9A5-Y MUL-9A5-Z
MUL-9A6-W MUL-9A6-X MUL-9A6-Y MUL-9A6-Z
MUL-9A7-W MUL-9A7-X MUL-9A7-Y MUL-9A7-Z
MUL-9A8-W MUL-9A8-X MUL-9A8-Y MUL-9A8-Z
MUL-9AR-W MUL-9AR-X MUL-9AR-Y MUL-9AR-Z
MUL-9AN-W MUL-9AN-X MUL-9AN-Y MUL-9AN-Z
MUL-9B1-W MUL-9B1-X MUL-9B1-Y MUL-9B1-Z
MUL-9B2-W MUL-9B2-X MUL-9B2-Y MUL-9B2-Z
MUL-9B3-W MUL-9B3-X MUL-9B3-Y MUL-9B3-Z
MUL-9B4-W MUL-9B4-X MUL-9B4-Y MUL-9B4-Z
MUL-9B5-W MUL-9B5-X MUL-9B5-Y MUL-9B5-Z

由于MAX810L的復(fù)位門檻電平為4.65V，因此其RESET端輸出為高電平，迫使Q1關(guān)斷，從而使負(fù)載與輸入電源斷開。MAX668通過外部反饋電阻網(wǎng)絡(luò)設(shè)定5V輸出電壓。當(dāng)輸出電壓超MAX810L的復(fù)位門檻電平時，其內(nèi)部單穩(wěn)電路開始工作并延時約240ms。之后，MAX810L的輸出變低，使Q1導(dǎo)通。Q1導(dǎo)通之后，MAX810L一直監(jiān)測輸出電壓以確定輸出是否過流。過載將會導(dǎo)致輸出電壓下降，當(dāng)它低于MAX810L門檻電平時，MAX810L的輸出經(jīng)過20μs的延遲后由高變低，從而關(guān)斷Q1并使負(fù)載斷開。由于MAX668的升壓作用，MAX810電源端電壓又會高于其門檻電平，240ms的復(fù)位延遲時間后，MAX810L輸出再次由高變低。
古冶區(qū)SANIL開關(guān)SKD-30M,M30,2-30mm,Non-sheild,

MUL-9B6-W MUL-9B6-X MUL-9B6-Y MUL-9B6-Z
MUL-9B7-W MUL-9B7-X MUL-9B7-Y MUL-9B7-Z
MUL-9B8-W MUL-9B8-X MUL-9B8-Y MUL-9B8-Z
MUL-9BR-W MUL-9BR-X MUL-9BR-Y MUL-9BR-Z
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MUL-9C1-W MUL-9C1-X MUL-9C1-Y MUL-9C1-Z
MUL-9C2-W MUL-9C2-X MUL-9C2-Y MUL-9C2-Z
MUL-9C3-W MUL-9C3-X MUL-9C3-Y MUL-9C3-Z
MUL-9C4-W MUL-9C4-X MUL-9C4-Y MUL-9C4-Z
MUL-9C5-W MUL-9C5-X MUL-9C5-Y MUL-9C5-Z
MUL-9C6-W MUL-9C6-X MUL-9C6-Y MUL-9C6-Z
MUL-9C7-W MUL-9C7-X MUL-9C7-Y MUL-9C7-Z
MUL-9C8-W MUL-9C8-X MUL-9C8-Y MUL-9C8-Z
MUL-9CR-W MUL-9CR-X MUL-9CR-Y MUL-9CR-Z
MUL-9CN-W MUL-9CN-X MUL-9CN-Y MUL-9CN-Z
MUL-9D1-W MUL-9D1-X MUL-9D1-Y MUL-9D1-Z
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MUL-9D3-W MUL-9D3-X MUL-9D3-Y MUL-9D3-Z
MUL-9D4-W MUL-9D4-X MUL-9D4-Y MUL-9D4-Z
MUL-9D5-W MUL-9D5-X MUL-9D5-Y MUL-9D5-Z
MUL-9D6-W MUL-9D6-X MUL-9D6-Y MUL-9D6-Z
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MUL-9E2-W MUL-9E2-X MUL-9E2-Y MUL-9E2-Z
MUL-9E3-W MUL-9E3-X MUL-9E3-Y MUL-9E3-Z
MUL-9E4-W MUL-9E4-X MUL-9E4-Y MUL-9E4-Z
MUL-9E5-W MUL-9E5-X MUL-9E5-Y MUL-9E5-Z
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MUL-9ER-W MUL-9ER-X MUL-9ER-Y MUL-9ER-Z

作為一種無觸點的半導(dǎo)體開關(guān)器件，其允許反復(fù)導(dǎo)通和關(guān)斷的次數(shù)幾乎是無限的，并且導(dǎo)通的控制也十分方便。這是一般的“通-斷開關(guān)”所望塵莫及的，從而使實現(xiàn)異步電動機的變頻調(diào)速取得了突破。但由于變頻器的逆變電路是在直流電壓下工作的，而SCR在直流電壓下又不能自行關(guān)斷，因此，要實現(xiàn)逆變，還必須增加輔助器件和相應(yīng)的電路來幫助它關(guān)斷。所以，盡管當(dāng)時的變頻調(diào)速裝置在個別領(lǐng)域（如風(fēng)機和泵類負(fù)載）已經(jīng)能夠?qū)嵱?，但未能進(jìn)入大范圍的普及應(yīng)用階段。⑵門極關(guān)斷（GTO）晶閘管SCR在一段時間內(nèi)，幾乎是能夠承受高電壓和大電流的半導(dǎo)體器件。因此，針對SCR的缺點，人們很自然地把努力方向引向了如何使晶閘管具有關(guān)斷能力這一點上，并因此而開發(fā)出了門極關(guān)斷晶閘管。
古冶區(qū)SANIL開關(guān)SKD-30M,M30,2-30mm,Non-sheild,

MUL-9EN-W MUL-9EN-X MUL-9EN-Y MUL-9EN-Z
MUL-9F1-W MUL-9F1-X MUL-9F1-Y MUL-9F1-Z
MUL-9F2-W MUL-9F2-X MUL-9F2-Y MUL-9F2-Z
MUL-9F3-W MUL-9F3-X MUL-9F3-Y MUL-9F3-Z
MUL-9F4-W MUL-9F4-X MUL-9F4-Y MUL-9F4-Z
MUL-9F5-W MUL-9F5-X MUL-9F5-Y MUL-9F5-Z
MUL-9F6-W MUL-9F6-X MUL-9F6-Y MUL-9F6-Z
MUL-9F7-W MUL-9F7-X MUL-9F7-Y MUL-9F7-Z
MUL-9F8-W MUL-9F8-X MUL-9F8-Y MUL-9F8-Z
MUL-9FR-W MUL-9FR-X MUL-9FR-Y MUL-9FR-Z
MUL-9FN-W MUL-9FN-X MUL-9FN-Y MUL-9FN-Z
MUL-9G1-W MUL-9G1-X MUL-9G1-Y MUL-9G1-Z
MUL-9G2-W MUL-9G2-X MUL-9G2-Y MUL-9G2-Z
MUL-9G3-W MUL-9G3-X MUL-9G3-Y MUL-9G3-Z
MUL-9G4-W MUL-9G4-X MUL-9G4-Y MUL-9G4-Z
MUL-9G5-W MUL-9G5-X MUL-9G5-Y MUL-9G5-Z
MUL-9G6-W MUL-9G6-X MUL-9G6-Y MUL-9G6-Z
MUL-9G7-W MUL-9G7-X MUL-9G7-Y MUL-9G7-Z
MUL-9G8-W MUL-9G8-X MUL-9G8-Y MUL-9G8-Z
MUL-9GR-W MUL-9GR-X MUL-9GR-Y MUL-9GR-Z
MUL-9GN-W MUL-9GN-X MUL-9GN-Y MUL-9GN-Z
MUL-9H1-W MUL-9H1-X MUL-9H1-Y MUL-9H1-Z
MUL-9H2-W MUL-9H2-X MUL-9H2-Y MUL-9H2-Z
MUL-9H3-W MUL-9H3-X MUL-9H3-Y MUL-9H3-Z
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MUL-9H5-W MUL-9H5-X MUL-9H5-Y MUL-9H5-Z
MUL-9H6-W MUL-9H6-X MUL-9H6-Y MUL-9H6-Z
MUL-9H7-W MUL-9H7-X MUL-9H7-Y MUL-9H7-Z
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MUL-9HR-W MUL-9HR-X MUL-9HR-Y MUL-9HR-Z
MUL-9HN-W MUL-9HN-X MUL-9HN-Y MUL-9HN-Z

以及旁路晶閘管的導(dǎo)通阻值變大時，都會導(dǎo)致起動電阻燒壞。如遇此情況，可購買同規(guī)格的電阻換之，同時必須找出引出電阻燒壞的原因。如果故障是由輸入側(cè)電源頻率開合引起的，必須消除這種現(xiàn)象才能將變頻器投入使用；如果故障是由旁路繼電器觸點或旁路晶閘管引起，則必須更換這些器件。2)變頻器無故障顯示，但不能高速運行我廠一臺變頻器狀態(tài)正常，但調(diào)不到高速運行，經(jīng)檢查，變頻器并無故障，參數(shù)設(shè)置正確，調(diào)速輸入信號正常，上電運行時測試出現(xiàn)變頻器直流母線電壓只有450V左右，正常值為580～600V，再測輸入側(cè)，發(fā)現(xiàn)缺了一相，故障原因是輸入側(cè)的一個空氣開關(guān)的一相接觸不良造成的，為什么變頻器輸入缺相不報警仍能在低頻段工作呢?實際上變頻器缺一相輸入時。
古冶區(qū)SANIL開關(guān)SKD-30M,M30,2-30mm,Non-sheild,