玉田縣SANIL開關(guān)SKA-18MS-T,M18,2-8mm,Sheild,AC20-250V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DSC-2A1-W DSC-2A1-X DSC-2A1-Y DSC-2A1-Z
DSC-2A2-W DSC-2A2-X DSC-2A2-Y DSC-2A2-Z
DSC-2A3-W DSC-2A3-X DSC-2A3-Y DSC-2A3-Z
DSC-2A4-W DSC-2A4-X DSC-2A4-Y DSC-2A4-Z
DSC-2A5-W DSC-2A5-X DSC-2A5-Y DSC-2A5-Z
DSC-2A6-W DSC-2A6-X DSC-2A6-Y DSC-2A6-Z
DSC-2A7-W DSC-2A7-X DSC-2A7-Y DSC-2A7-Z
DSC-2A8-W DSC-2A8-X DSC-2A8-Y DSC-2A8-Z
DSC-2AR-W DSC-2AR-X DSC-2AR-Y DSC-2AR-Z
DSC-2AN-W DSC-2AN-X DSC-2AN-Y DSC-2AN-Z
DSC-2B1-W DSC-2B1-X DSC-2B1-Y DSC-2B1-Z
DSC-2B2-W DSC-2B2-X DSC-2B2-Y DSC-2B2-Z
DSC-2B3-W DSC-2B3-X DSC-2B3-Y DSC-2B3-Z
DSC-2B4-W DSC-2B4-X DSC-2B4-Y DSC-2B4-Z
DSC-2B5-W DSC-2B5-X DSC-2B5-Y DSC-2B5-Z
DSC-2B6-W DSC-2B6-X DSC-2B6-Y DSC-2B6-Z
DSC-2B7-W DSC-2B7-X DSC-2B7-Y DSC-2B7-Z
DSC-2B8-W DSC-2B8-X DSC-2B8-Y DSC-2B8-Z
DSC-2BR-W DSC-2BR-X DSC-2BR-Y DSC-2BR-Z
DSC-2BN-W DSC-2BN-X DSC-2BN-Y DSC-2BN-Z
DSC-2C1-W DSC-2C1-X DSC-2C1-Y DSC-2C1-Z
DSC-2C2-W DSC-2C2-X DSC-2C2-Y DSC-2C2-Z
DSC-2C3-W DSC-2C3-X DSC-2C3-Y DSC-2C3-Z
DSC-2C4-W DSC-2C4-X DSC-2C4-Y DSC-2C4-Z
DSC-2C5-W DSC-2C5-X DSC-2C5-Y DSC-2C5-Z
DSC-2C6-W DSC-2C6-X DSC-2C6-Y DSC-2C6-Z
DSC-2C7-W DSC-2C7-X DSC-2C7-Y DSC-2C7-Z
DSC-2C8-W DSC-2C8-X DSC-2C8-Y DSC-2C8-Z
DSC-2CR-W DSC-2CR-X DSC-2CR-Y DSC-2CR-Z
DSC-2CN-W DSC-2CN-X DSC-2CN-Y DSC-2CN-Z
DSC-2D1-W DSC-2D1-X DSC-2D1-Y DSC-2D1-Z
DSC-2D2-W DSC-2D2-X DSC-2D2-Y DSC-2D2-Z
DSC-2D3-W DSC-2D3-X DSC-2D3-Y DSC-2D3-Z
DSC-2D4-W DSC-2D4-X DSC-2D4-Y DSC-2D4-Z
DSC-2D5-W DSC-2D5-X DSC-2D5-Y DSC-2D5-Z
DSC-2D6-W DSC-2D6-X DSC-2D6-Y DSC-2D6-Z
DSC-2D7-W DSC-2D7-X DSC-2D7-Y DSC-2D7-Z
DSC-2D8-W DSC-2D8-X DSC-2D8-Y DSC-2D8-Z
DSC-2DR-W DSC-2DR-X DSC-2DR-Y DSC-2DR-Z
DSC-2DN-W DSC-2DN-X DSC-2DN-Y DSC-2DN-Z
DSC-2E1-W DSC-2E1-X DSC-2E1-Y DSC-2E1-Z
DSC-2E2-W DSC-2E2-X DSC-2E2-Y DSC-2E2-Z
DSC-2E3-W DSC-2E3-X DSC-2E3-Y DSC-2E3-Z
DSC-2E4-W DSC-2E4-X DSC-2E4-Y DSC-2E4-Z
DSC-2E5-W DSC-2E5-X DSC-2E5-Y DSC-2E5-Z
DSC-2E6-W DSC-2E6-X DSC-2E6-Y DSC-2E6-Z
DSC-2E7-W DSC-2E7-X DSC-2E7-Y DSC-2E7-Z
DSC-2E8-W DSC-2E8-X DSC-2E8-Y DSC-2E8-Z
DSC-2ER-W DSC-2ER-X DSC-2ER-Y DSC-2ER-Z
DSC-2EN-W DSC-2EN-X DSC-2EN-Y DSC-2EN-Z
DSC-2F1-W DSC-2F1-X DSC-2F1-Y DSC-2F1-Z
DSC-2F2-W DSC-2F2-X DSC-2F2-Y DSC-2F2-Z
DSC-2F3-W DSC-2F3-X DSC-2F3-Y DSC-2F3-Z
DSC-2F4-W DSC-2F4-X DSC-2F4-Y DSC-2F4-Z
DSC-2F5-W DSC-2F5-X DSC-2F5-Y DSC-2F5-Z
DSC-2F6-W DSC-2F6-X DSC-2F6-Y DSC-2F6-Z
DSC-2F7-W DSC-2F7-X DSC-2F7-Y DSC-2F7-Z
DSC-2F8-W DSC-2F8-X DSC-2F8-Y DSC-2F8-Z
DSC-2FR-W DSC-2FR-X DSC-2FR-Y DSC-2FR-Z
DSC-2FN-W DSC-2FN-X DSC-2FN-Y DSC-2FN-Z
DSC-2G1-W DSC-2G1-X DSC-2G1-Y DSC-2G1-Z
DSC-2G2-W DSC-2G2-X DSC-2G2-Y DSC-2G2-Z
DSC-2G3-W DSC-2G3-X DSC-2G3-Y DSC-2G3-Z
DSC-2G4-W DSC-2G4-X DSC-2G4-Y DSC-2G4-Z
DSC-2G5-W DSC-2G5-X DSC-2G5-Y DSC-2G5-Z

可控硅方可關(guān)斷。當(dāng)然，如果Ea極性反接，BGBG2由于受到反向電壓作用將處于截止?fàn)顟B(tài)。這時(shí)，即使輸入觸發(fā)信號，可控硅也不能工作。反過來，Ea接成正向，而觸動(dòng)發(fā)信號是負(fù)的，可控硅也不能導(dǎo)通。另外，如果不加觸發(fā)信號，而正向陽極電壓大到超過一定值時(shí)，可控硅也會導(dǎo)通，但已屬于非正常工作情況了。可控硅這種通過觸發(fā)信號（小的觸發(fā)電流）來控制導(dǎo)通（可控硅中通過大電流）的可控特性，正是它區(qū)別于普通硅整流二極管的重要特征。普通可控硅的三個(gè)電極可以用萬用表歐姆擋R×100擋位來測。大家知道，晶閘管G、K之間是一個(gè)PN結(jié)（a），相當(dāng)于一個(gè)二極管，G為正極、K為負(fù)極，所以，按照測試二極管的方法，找出三個(gè)極中的兩個(gè)極。
玉田縣SANIL開關(guān)SKA-18MS-T,M18,2-8mm,Sheild,AC20-250V

DSC-2G6-W DSC-2G6-X DSC-2G6-Y DSC-2G6-Z
DSC-2G7-W DSC-2G7-X DSC-2G7-Y DSC-2G7-Z
DSC-2G8-W DSC-2G8-X DSC-2G8-Y DSC-2G8-Z
DSC-2GR-W DSC-2GR-X DSC-2GR-Y DSC-2GR-Z
DSC-2GN-W DSC-2GN-X DSC-2GN-Y DSC-2GN-Z
DSC-2H1-W DSC-2H1-X DSC-2H1-Y DSC-2H1-Z
DSC-2H2-W DSC-2H2-X DSC-2H2-Y DSC-2H2-Z
DSC-2H3-W DSC-2H3-X DSC-2H3-Y DSC-2H3-Z
DSC-2H4-W DSC-2H4-X DSC-2H4-Y DSC-2H4-Z
DSC-2H5-W DSC-2H5-X DSC-2H5-Y DSC-2H5-Z
DSC-2H6-W DSC-2H6-X DSC-2H6-Y DSC-2H6-Z
DSC-2H7-W DSC-2H7-X DSC-2H7-Y DSC-2H7-Z
DSC-2H8-W DSC-2H8-X DSC-2H8-Y DSC-2H8-Z
DSC-2HR-W DSC-2HR-X DSC-2HR-Y DSC-2HR-Z
DSC-2HN-W DSC-2HN-X DSC-2HN-Y DSC-2HN-Z

DSC-4A1-W DSC-4A1-X DSC-4A1-Y DSC-4A1-Z
DSC-4A2-W DSC-4A2-X DSC-4A2-Y DSC-4A2-Z
DSC-4A3-W DSC-4A3-X DSC-4A3-Y DSC-4A3-Z
DSC-4A4-W DSC-4A4-X DSC-4A4-Y DSC-4A4-Z
DSC-4A5-W DSC-4A5-X DSC-4A5-Y DSC-4A5-Z
DSC-4A6-W DSC-4A6-X DSC-4A6-Y DSC-4A6-Z
DSC-4A7-W DSC-4A7-X DSC-4A7-Y DSC-4A7-Z
DSC-4A8-W DSC-4A8-X DSC-4A8-Y DSC-4A8-Z
DSC-4AR-W DSC-4AR-X DSC-4AR-Y DSC-4AR-Z
DSC-4AN-W DSC-4AN-X DSC-4AN-Y DSC-4AN-Z
DSC-4B1-W DSC-4B1-X DSC-4B1-Y DSC-4B1-Z
DSC-4B2-W DSC-4B2-X DSC-4B2-Y DSC-4B2-Z
DSC-4B3-W DSC-4B3-X DSC-4B3-Y DSC-4B3-Z
DSC-4B4-W DSC-4B4-X DSC-4B4-Y DSC-4B4-Z
DSC-4B5-W DSC-4B5-X DSC-4B5-Y DSC-4B5-Z
DSC-4B6-W DSC-4B6-X DSC-4B6-Y DSC-4B6-Z
DSC-4B7-W DSC-4B7-X DSC-4B7-Y DSC-4B7-Z
DSC-4B8-W DSC-4B8-X DSC-4B8-Y DSC-4B8-Z
DSC-4BR-W DSC-4BR-X DSC-4BR-Y DSC-4BR-Z
DSC-4BN-W DSC-4BN-X DSC-4BN-Y DSC-4BN-Z
DSC-4C1-W DSC-4C1-X DSC-4C1-Y DSC-4C1-Z
DSC-4C2-W DSC-4C2-X DSC-4C2-Y DSC-4C2-Z
DSC-4C3-W DSC-4C3-X DSC-4C3-Y DSC-4C3-Z
DSC-4C4-W DSC-4C4-X DSC-4C4-Y DSC-4C4-Z
DSC-4C5-W DSC-4C5-X DSC-4C5-Y DSC-4C5-Z
DSC-4C6-W DSC-4C6-X DSC-4C6-Y DSC-4C6-Z
DSC-4C7-W DSC-4C7-X DSC-4C7-Y DSC-4C7-Z
DSC-4C8-W DSC-4C8-X DSC-4C8-Y DSC-4C8-Z
DSC-4CR-W DSC-4CR-X DSC-4CR-Y DSC-4CR-Z
DSC-4CN-W DSC-4CN-X DSC-4CN-Y DSC-4CN-Z
DSC-4D1-W DSC-4D1-X DSC-4D1-Y DSC-4D1-Z
DSC-4D2-W DSC-4D2-X DSC-4D2-Y DSC-4D2-Z
DSC-4D3-W DSC-4D3-X DSC-4D3-Y DSC-4D3-Z
DSC-4D4-W DSC-4D4-X DSC-4D4-Y DSC-4D4-Z
DSC-4D5-W DSC-4D5-X DSC-4D5-Y DSC-4D5-Z
DSC-4D6-W DSC-4D6-X DSC-4D6-Y DSC-4D6-Z
DSC-4D7-W DSC-4D7-X DSC-4D7-Y DSC-4D7-Z
DSC-4D8-W DSC-4D8-X DSC-4D8-Y DSC-4D8-Z
DSC-4DR-W DSC-4DR-X DSC-4DR-Y DSC-4DR-Z
DSC-4DN-W DSC-4DN-X DSC-4DN-Y DSC-4DN-Z
DSC-4E1-W DSC-4E1-X DSC-4E1-Y DSC-4E1-Z
DSC-4E2-W DSC-4E2-X DSC-4E2-Y DSC-4E2-Z

外觀精致，按鈕人性化，顯示屏亮麗?？达@示屏：液晶顯示屏的好壞直接影響儀表壽命，差的顯示屏用了一斷時(shí)間后字跡會變得模糊，昏暗。常見故障編輯無紙記錄儀采用144*144彩色顯示屏，設(shè)定數(shù)據(jù)與記錄數(shù)據(jù)具掉電保護(hù)功能；采用USBHost技術(shù)，提供USB總線接口，實(shí)現(xiàn)FAT16文件系統(tǒng)，支持USB移動(dòng)存儲器的數(shù)據(jù)讀寫；具有體積小、通道數(shù)多、功耗低、精度高、通用性強(qiáng)、運(yùn)行穩(wěn)定、可靠性高等特點(diǎn)。常見故障：通道不進(jìn)數(shù)，即改變通道信號值大小，通道顯示值無任何變化。A用萬用表在接線端子上測量信號是否正常;B檢查通道模塊開關(guān)與信號類型是否設(shè)置正確;C打開表殼，檢查通道信號電纜是否接好。儀表通電不工作。A檢查儀表220V電源端子接線是否正確;B檢查儀表絲是否熔斷;C擰下儀表后的固定螺釘。
玉田縣SANIL開關(guān)SKA-18MS-T,M18,2-8mm,Sheild,AC20-250V

DSC-4E3-W DSC-4E3-X DSC-4E3-Y DSC-4E3-Z
DSC-4E4-W DSC-4E4-X DSC-4E4-Y DSC-4E4-Z
DSC-4E5-W DSC-4E5-X DSC-4E5-Y DSC-4E5-Z
DSC-4E6-W DSC-4E6-X DSC-4E6-Y DSC-4E6-Z
DSC-4E7-W DSC-4E7-X DSC-4E7-Y DSC-4E7-Z
DSC-4E8-W DSC-4E8-X DSC-4E8-Y DSC-4E8-Z
DSC-4ER-W DSC-4ER-X DSC-4ER-Y DSC-4ER-Z
DSC-4EN-W DSC-4EN-X DSC-4EN-Y DSC-4EN-Z
DSC-4F1-W DSC-4F1-X DSC-4F1-Y DSC-4F1-Z
DSC-4F2-W DSC-4F2-X DSC-4F2-Y DSC-4F2-Z
DSC-4F3-W DSC-4F3-X DSC-4F3-Y DSC-4F3-Z
DSC-4F4-W DSC-4F4-X DSC-4F4-Y DSC-4F4-Z
DSC-4F5-W DSC-4F5-X DSC-4F5-Y DSC-4F5-Z
DSC-4F6-W DSC-4F6-X DSC-4F6-Y DSC-4F6-Z
DSC-4F7-W DSC-4F7-X DSC-4F7-Y DSC-4F7-Z
DSC-4F8-W DSC-4F8-X DSC-4F8-Y DSC-4F8-Z
DSC-4FR-W DSC-4FR-X DSC-4FR-Y DSC-4FR-Z
DSC-4FN-W DSC-4FN-X DSC-4FN-Y DSC-4FN-Z
DSC-4G1-W DSC-4G1-X DSC-4G1-Y DSC-4G1-Z
DSC-4G2-W DSC-4G2-X DSC-4G2-Y DSC-4G2-Z
DSC-4G3-W DSC-4G3-X DSC-4G3-Y DSC-4G3-Z
DSC-4G4-W DSC-4G4-X DSC-4G4-Y DSC-4G4-Z
DSC-4G5-W DSC-4G5-X DSC-4G5-Y DSC-4G5-Z
DSC-4G6-W DSC-4G6-X DSC-4G6-Y DSC-4G6-Z
DSC-4G7-W DSC-4G7-X DSC-4G7-Y DSC-4G7-Z
DSC-4G8-W DSC-4G8-X DSC-4G8-Y DSC-4G8-Z
DSC-4GR-W DSC-4GR-X DSC-4GR-Y DSC-4GR-Z
DSC-4GN-W DSC-4GN-X DSC-4GN-Y DSC-4GN-Z
DSC-4H1-W DSC-4H1-X DSC-4H1-Y DSC-4H1-Z
DSC-4H2-W DSC-4H2-X DSC-4H2-Y DSC-4H2-Z
DSC-4H3-W DSC-4H3-X DSC-4H3-Y DSC-4H3-Z
DSC-4H4-W DSC-4H4-X DSC-4H4-Y DSC-4H4-Z
DSC-4H5-W DSC-4H5-X DSC-4H5-Y DSC-4H5-Z
DSC-4H6-W DSC-4H6-X DSC-4H6-Y DSC-4H6-Z
DSC-4H7-W DSC-4H7-X DSC-4H7-Y DSC-4H7-Z
DSC-4H8-W DSC-4H8-X DSC-4H8-Y DSC-4H8-Z
DSC-4HR-W DSC-4HR-X DSC-4HR-Y DSC-4HR-Z
DSC-4HN-W DSC-4HN-X DSC-4HN-Y DSC-4HN-Z

DSC-7A1-W DSC-7A1-X DSC-7A1-Y DSC-7A1-Z
DSC-7A2-W DSC-7A2-X DSC-7A2-Y DSC-7A2-Z
DSC-7A3-W DSC-7A3-X DSC-7A3-Y DSC-7A3-Z
DSC-7A4-W DSC-7A4-X DSC-7A4-Y DSC-7A4-Z
DSC-7A5-W DSC-7A5-X DSC-7A5-Y DSC-7A5-Z
DSC-7A6-W DSC-7A6-X DSC-7A6-Y DSC-7A6-Z
DSC-7A7-W DSC-7A7-X DSC-7A7-Y DSC-7A7-Z
DSC-7A8-W DSC-7A8-X DSC-7A8-Y DSC-7A8-Z
DSC-7AR-W DSC-7AR-X DSC-7AR-Y DSC-7AR-Z
DSC-7AN-W DSC-7AN-X DSC-7AN-Y DSC-7AN-Z
DSC-7B1-W DSC-7B1-X DSC-7B1-Y DSC-7B1-Z
DSC-7B2-W DSC-7B2-X DSC-7B2-Y DSC-7B2-Z
DSC-7B3-W DSC-7B3-X DSC-7B3-Y DSC-7B3-Z
DSC-7B4-W DSC-7B4-X DSC-7B4-Y DSC-7B4-Z
DSC-7B5-W DSC-7B5-X DSC-7B5-Y DSC-7B5-Z
DSC-7B6-W DSC-7B6-X DSC-7B6-Y DSC-7B6-Z
DSC-7B7-W DSC-7B7-X DSC-7B7-Y DSC-7B7-Z
DSC-7B8-W DSC-7B8-X DSC-7B8-Y DSC-7B8-Z
DSC-7BR-W DSC-7BR-X DSC-7BR-Y DSC-7BR-Z
DSC-7BN-W DSC-7BN-X DSC-7BN-Y DSC-7BN-Z
DSC-7C1-W DSC-7C1-X DSC-7C1-Y DSC-7C1-Z
DSC-7C2-W DSC-7C2-X DSC-7C2-Y DSC-7C2-Z
DSC-7C3-W DSC-7C3-X DSC-7C3-Y DSC-7C3-Z
DSC-7C4-W DSC-7C4-X DSC-7C4-Y DSC-7C4-Z
DSC-7C5-W DSC-7C5-X DSC-7C5-Y DSC-7C5-Z
DSC-7C6-W DSC-7C6-X DSC-7C6-Y DSC-7C6-Z
DSC-7C7-W DSC-7C7-X DSC-7C7-Y DSC-7C7-Z
DSC-7C8-W DSC-7C8-X DSC-7C8-Y DSC-7C8-Z
DSC-7CR-W DSC-7CR-X DSC-7CR-Y DSC-7CR-Z
DSC-7CN-W DSC-7CN-X DSC-7CN-Y DSC-7CN-Z
DSC-7D1-W DSC-7D1-X DSC-7D1-Y DSC-7D1-Z
DSC-7D2-W DSC-7D2-X DSC-7D2-Y DSC-7D2-Z
DSC-7D3-W DSC-7D3-X DSC-7D3-Y DSC-7D3-Z
DSC-7D4-W DSC-7D4-X DSC-7D4-Y DSC-7D4-Z
DSC-7D5-W DSC-7D5-X DSC-7D5-Y DSC-7D5-Z
DSC-7D6-W DSC-7D6-X DSC-7D6-Y DSC-7D6-Z
DSC-7D7-W DSC-7D7-X DSC-7D7-Y DSC-7D7-Z
DSC-7D8-W DSC-7D8-X DSC-7D8-Y DSC-7D8-Z
DSC-7DR-W DSC-7DR-X DSC-7DR-Y DSC-7DR-Z
DSC-7DN-W DSC-7DN-X DSC-7DN-Y DSC-7DN-Z
DSC-7E1-W DSC-7E1-X DSC-7E1-Y DSC-7E1-Z
DSC-7E2-W DSC-7E2-X DSC-7E2-Y DSC-7E2-Z
DSC-7E3-W DSC-7E3-X DSC-7E3-Y DSC-7E3-Z
DSC-7E4-W DSC-7E4-X DSC-7E4-Y DSC-7E4-Z
DSC-7E5-W DSC-7E5-X DSC-7E5-Y DSC-7E5-Z
DSC-7E6-W DSC-7E6-X DSC-7E6-Y DSC-7E6-Z
DSC-7E7-W DSC-7E7-X DSC-7E7-Y DSC-7E7-Z
DSC-7E8-W DSC-7E8-X DSC-7E8-Y DSC-7E8-Z
DSC-7ER-W DSC-7ER-X DSC-7ER-Y DSC-7ER-Z
DSC-7EN-W DSC-7EN-X DSC-7EN-Y DSC-7EN-Z
DSC-7F1-W DSC-7F1-X DSC-7F1-Y DSC-7F1-Z
DSC-7F2-W DSC-7F2-X DSC-7F2-Y DSC-7F2-Z
DSC-7F3-W DSC-7F3-X DSC-7F3-Y DSC-7F3-Z
DSC-7F4-W DSC-7F4-X DSC-7F4-Y DSC-7F4-Z
DSC-7F5-W DSC-7F5-X DSC-7F5-Y DSC-7F5-Z
DSC-7F6-W DSC-7F6-X DSC-7F6-Y DSC-7F6-Z
DSC-7F7-W DSC-7F7-X DSC-7F7-Y DSC-7F7-Z
DSC-7F8-W DSC-7F8-X DSC-7F8-Y DSC-7F8-Z
DSC-7FR-W DSC-7FR-X DSC-7FR-Y DSC-7FR-Z
DSC-7FN-W DSC-7FN-X DSC-7FN-Y DSC-7FN-Z
DSC-7G1-W DSC-7G1-X DSC-7G1-Y DSC-7G1-Z
DSC-7G2-W DSC-7G2-X DSC-7G2-Y DSC-7G2-Z
DSC-7G3-W DSC-7G3-X DSC-7G3-Y DSC-7G3-Z
DSC-7G4-W DSC-7G4-X DSC-7G4-Y DSC-7G4-Z
DSC-7G5-W DSC-7G5-X DSC-7G5-Y DSC-7G5-Z
DSC-7G6-W DSC-7G6-X DSC-7G6-Y DSC-7G6-Z
DSC-7G7-W DSC-7G7-X DSC-7G7-Y DSC-7G7-Z
DSC-7G8-W DSC-7G8-X DSC-7G8-Y DSC-7G8-Z
DSC-7GR-W DSC-7GR-X DSC-7GR-Y DSC-7GR-Z
DSC-7GN-W DSC-7GN-X DSC-7GN-Y DSC-7GN-Z
DSC-7H1-W DSC-7H1-X DSC-7H1-Y DSC-7H1-Z
DSC-7H2-W DSC-7H2-X DSC-7H2-Y DSC-7H2-Z
DSC-7H3-W DSC-7H3-X DSC-7H3-Y DSC-7H3-Z
DSC-7H4-W DSC-7H4-X DSC-7H4-Y DSC-7H4-Z

但要求有一定的過勵(lì)磁特性（即當(dāng)原邊電壓增加時(shí)，鐵心中的磁通密度也增加相應(yīng)倍數(shù)而不會損壞）。[3]電壓互感器是發(fā)電廠、變電所等輸電和供電系統(tǒng)不可缺少的一種電器。精密電壓互感器是電測試驗(yàn)室中用來擴(kuò)大量限，測量電壓、功率和電能的一種儀器。電壓互感器和變壓器很相像，都是用來變換線路上的電壓。線路上為什么需要變換電壓呢？這是因?yàn)楦鶕?jù)發(fā)電、輸電和用電的不同情況，線路上的電壓大小不一，而且相差懸殊，有的是低壓220V和380V，有的是高壓幾萬伏甚至幾十萬伏。要直接測量這些低壓和高壓電壓，就需要根據(jù)線路電壓的大小，制作相應(yīng)的低壓和高壓的電壓表和其他儀表和繼電器。這樣不僅會給儀表制作帶來很大困難，而且更主要的是。
玉田縣SANIL開關(guān)SKA-18MS-T,M18,2-8mm,Sheild,AC20-250V

DSC-7H5-W DSC-7H5-X DSC-7H5-Y DSC-7H5-Z
DSC-7H6-W DSC-7H6-X DSC-7H6-Y DSC-7H6-Z
DSC-7H7-W DSC-7H7-X DSC-7H7-Y DSC-7H7-Z
DSC-7H8-W DSC-7H8-X DSC-7H8-Y DSC-7H8-Z
DSC-7HR-W DSC-7HR-X DSC-7HR-Y DSC-7HR-Z
DSC-7HN-W DSC-7HN-X DSC-7HN-Y DSC-7HN-Z

DSC-9A1-W DSC-9A1-X DSC-9A1-Y DSC-9A1-Z
DSC-9A2-W DSC-9A2-X DSC-9A2-Y DSC-9A2-Z
DSC-9A3-W DSC-9A3-X DSC-9A3-Y DSC-9A3-Z
DSC-9A4-W DSC-9A4-X DSC-9A4-Y DSC-9A4-Z
DSC-9A5-W DSC-9A5-X DSC-9A5-Y DSC-9A5-Z
DSC-9A6-W DSC-9A6-X DSC-9A6-Y DSC-9A6-Z
DSC-9A7-W DSC-9A7-X DSC-9A7-Y DSC-9A7-Z
DSC-9A8-W DSC-9A8-X DSC-9A8-Y DSC-9A8-Z
DSC-9AR-W DSC-9AR-X DSC-9AR-Y DSC-9AR-Z
DSC-9AN-W DSC-9AN-X DSC-9AN-Y DSC-9AN-Z
DSC-9B1-W DSC-9B1-X DSC-9B1-Y DSC-9B1-Z
DSC-9B2-W DSC-9B2-X DSC-9B2-Y DSC-9B2-Z
DSC-9B3-W DSC-9B3-X DSC-9B3-Y DSC-9B3-Z
DSC-9B4-W DSC-9B4-X DSC-9B4-Y DSC-9B4-Z
DSC-9B5-W DSC-9B5-X DSC-9B5-Y DSC-9B5-Z
DSC-9B6-W DSC-9B6-X DSC-9B6-Y DSC-9B6-Z
DSC-9B7-W DSC-9B7-X DSC-9B7-Y DSC-9B7-Z
DSC-9B8-W DSC-9B8-X DSC-9B8-Y DSC-9B8-Z
DSC-9BR-W DSC-9BR-X DSC-9BR-Y DSC-9BR-Z
DSC-9BN-W DSC-9BN-X DSC-9BN-Y DSC-9BN-Z
DSC-9C1-W DSC-9C1-X DSC-9C1-Y DSC-9C1-Z
DSC-9C2-W DSC-9C2-X DSC-9C2-Y DSC-9C2-Z
DSC-9C3-W DSC-9C3-X DSC-9C3-Y DSC-9C3-Z
DSC-9C4-W DSC-9C4-X DSC-9C4-Y DSC-9C4-Z
DSC-9C5-W DSC-9C5-X DSC-9C5-Y DSC-9C5-Z
DSC-9C6-W DSC-9C6-X DSC-9C6-Y DSC-9C6-Z
DSC-9C7-W DSC-9C7-X DSC-9C7-Y DSC-9C7-Z
DSC-9C8-W DSC-9C8-X DSC-9C8-Y DSC-9C8-Z
DSC-9CR-W DSC-9CR-X DSC-9CR-Y DSC-9CR-Z
DSC-9CN-W DSC-9CN-X DSC-9CN-Y DSC-9CN-Z
DSC-9D1-W DSC-9D1-X DSC-9D1-Y DSC-9D1-Z

其動(dòng)合觸點(diǎn)閉合，與已閉合的KM動(dòng)合輔助觸點(diǎn)形成自鎖，電動(dòng)機(jī)正常運(yùn)行。當(dāng)電動(dòng)機(jī)發(fā)生斷相運(yùn)行時(shí)，接在斷相上的欠電流繼電器釋放，相應(yīng)繼電器的動(dòng)合觸點(diǎn)打開，使交流接觸器線圈的自鎖電路斷開，接觸器失電釋放，電動(dòng)機(jī)停止運(yùn)轉(zhuǎn)。[2]當(dāng)通過繼電器的電流減小到低于其整定值時(shí)就動(dòng)作的繼電器，稱為欠電流繼電器。當(dāng)檢測的電流大于欠電流設(shè)定值時(shí)，欠電流輸出繼電器吸合，否則輸出繼電器釋放。欠電流設(shè)定值通過面板按鍵設(shè)置，設(shè)置范圍為測量范圍，控制精度高。面板有欠電流指示燈，內(nèi)部有報(bào)警蜂鳴器。中文名欠電流繼電器外文名undercurrentrelay響應(yīng)時(shí)間：≤30ms。外形尺寸：96mm×48mm×112mm,功耗：≤4VA目錄1概念2工作原理3常用型號和選擇4安裝和使用5欠電流繼電器斷相保護(hù)電路概念編輯當(dāng)通過繼電器的電流減小到低于其整定值時(shí)就動(dòng)作的繼電器稱為欠電流繼電器。
玉田縣SANIL開關(guān)SKA-18MS-T,M18,2-8mm,Sheild,AC20-250V

DSC-9D2-W DSC-9D2-X DSC-9D2-Y DSC-9D2-Z
DSC-9D3-W DSC-9D3-X DSC-9D3-Y DSC-9D3-Z
DSC-9D4-W DSC-9D4-X DSC-9D4-Y DSC-9D4-Z
DSC-9D5-W DSC-9D5-X DSC-9D5-Y DSC-9D5-Z
DSC-9D6-W DSC-9D6-X DSC-9D6-Y DSC-9D6-Z
DSC-9D7-W DSC-9D7-X DSC-9D7-Y DSC-9D7-Z
DSC-9D8-W DSC-9D8-X DSC-9D8-Y DSC-9D8-Z
DSC-9DR-W DSC-9DR-X DSC-9DR-Y DSC-9DR-Z
DSC-9DN-W DSC-9DN-X DSC-9DN-Y DSC-9DN-Z
DSC-9E1-W DSC-9E1-X DSC-9E1-Y DSC-9E1-Z
DSC-9E2-W DSC-9E2-X DSC-9E2-Y DSC-9E2-Z
DSC-9E3-W DSC-9E3-X DSC-9E3-Y DSC-9E3-Z
DSC-9E4-W DSC-9E4-X DSC-9E4-Y DSC-9E4-Z
DSC-9E5-W DSC-9E5-X DSC-9E5-Y DSC-9E5-Z
DSC-9E6-W DSC-9E6-X DSC-9E6-Y DSC-9E6-Z
DSC-9E7-W DSC-9E7-X DSC-9E7-Y DSC-9E7-Z
DSC-9E8-W DSC-9E8-X DSC-9E8-Y DSC-9E8-Z
DSC-9ER-W DSC-9ER-X DSC-9ER-Y DSC-9ER-Z
DSC-9EN-W DSC-9EN-X DSC-9EN-Y DSC-9EN-Z
DSC-9F1-W DSC-9F1-X DSC-9F1-Y DSC-9F1-Z
DSC-9F2-W DSC-9F2-X DSC-9F2-Y DSC-9F2-Z
DSC-9F3-W DSC-9F3-X DSC-9F3-Y DSC-9F3-Z
DSC-9F4-W DSC-9F4-X DSC-9F4-Y DSC-9F4-Z
DSC-9F5-W DSC-9F5-X DSC-9F5-Y DSC-9F5-Z
DSC-9F6-W DSC-9F6-X DSC-9F6-Y DSC-9F6-Z
DSC-9F7-W DSC-9F7-X DSC-9F7-Y DSC-9F7-Z
DSC-9F8-W DSC-9F8-X DSC-9F8-Y DSC-9F8-Z
DSC-9FR-W DSC-9FR-X DSC-9FR-Y DSC-9FR-Z
DSC-9FN-W DSC-9FN-X DSC-9FN-Y DSC-9FN-Z
DSC-9G1-W DSC-9G1-X DSC-9G1-Y DSC-9G1-Z
DSC-9G2-W DSC-9G2-X DSC-9G2-Y DSC-9G2-Z
DSC-9G3-W DSC-9G3-X DSC-9G3-Y DSC-9G3-Z
DSC-9G4-W DSC-9G4-X DSC-9G4-Y DSC-9G4-Z
DSC-9G5-W DSC-9G5-X DSC-9G5-Y DSC-9G5-Z
DSC-9G6-W DSC-9G6-X DSC-9G6-Y DSC-9G6-Z

要直接制作高壓儀表，直接在高壓線路上測量電壓，那是不可能的，而且也是不允許的。主要類型編輯按安裝地點(diǎn)可分為戶內(nèi)式和戶外式[4]35kV及以下多制成戶內(nèi)式；35kV以上則制成戶外式。按相數(shù)可分為單相和三相式35kV及以上不能制成三相式。按繞組數(shù)目可分為雙繞組和三繞組電壓互感器，三繞組電壓互感器除一次側(cè)和基本二次側(cè)外，還有一組輔助二次側(cè)，供接地保護(hù)用。按絕緣方式可分為干式、澆注式、油浸式和充氣式[1]。干式電壓互感器結(jié)構(gòu)簡單、無著火和危險(xiǎn)，但絕緣強(qiáng)度較低，只適用于6kV以下的戶內(nèi)式裝置；澆注式電壓互感器結(jié)構(gòu)緊湊、維護(hù)方便，適用于3kV～35kV戶內(nèi)式配電裝置；油浸式電壓互感器絕緣性能較好。
玉田縣SANIL開關(guān)SKA-18MS-T,M18,2-8mm,Sheild,AC20-250V

DSC-9G7-W DSC-9G7-X DSC-9G7-Y DSC-9G7-Z
DSC-9G8-W DSC-9G8-X DSC-9G8-Y DSC-9G8-Z
DSC-9GR-W DSC-9GR-X DSC-9GR-Y DSC-9GR-Z
DSC-9GN-W DSC-9GN-X DSC-9GN-Y DSC-9GN-Z
DSC-9H1-W DSC-9H1-X DSC-9H1-Y DSC-9H1-Z
DSC-9H2-W DSC-9H2-X DSC-9H2-Y DSC-9H2-Z
DSC-9H3-W DSC-9H3-X DSC-9H3-Y DSC-9H3-Z
DSC-9H4-W DSC-9H4-X DSC-9H4-Y DSC-9H4-Z
DSC-9H5-W DSC-9H5-X DSC-9H5-Y DSC-9H5-Z
DSC-9H6-W DSC-9H6-X DSC-9H6-Y DSC-9H6-Z
DSC-9H7-W DSC-9H7-X DSC-9H7-Y DSC-9H7-Z
DSC-9H8-W DSC-9H8-X DSC-9H8-Y DSC-9H8-Z
DSC-9HR-W DSC-9HR-X DSC-9HR-Y DSC-9HR-Z
DSC-9HN-W DSC-9HN-X DSC-9HN-Y DSC-9HN-Z

FDC-2A1-W FDC-2A1-X FDC-2A1-Y FDC-2A1-Z
FDC-2A2-W FDC-2A2-X FDC-2A2-Y FDC-2A2-Z
FDC-2A3-W FDC-2A3-X FDC-2A3-Y FDC-2A3-Z
FDC-2A4-W FDC-2A4-X FDC-2A4-Y FDC-2A4-Z
FDC-2A5-W FDC-2A5-X FDC-2A5-Y FDC-2A5-Z
FDC-2A6-W FDC-2A6-X FDC-2A6-Y FDC-2A6-Z
FDC-2A7-W FDC-2A7-X FDC-2A7-Y FDC-2A7-Z
FDC-2A8-W FDC-2A8-X FDC-2A8-Y FDC-2A8-Z
FDC-2AR-W FDC-2AR-X FDC-2AR-Y FDC-2AR-Z
FDC-2AN-W FDC-2AN-X FDC-2AN-Y FDC-2AN-Z
FDC-2B1-W FDC-2B1-X FDC-2B1-Y FDC-2B1-Z
FDC-2B2-W FDC-2B2-X FDC-2B2-Y FDC-2B2-Z
FDC-2B3-W FDC-2B3-X FDC-2B3-Y FDC-2B3-Z
FDC-2B4-W FDC-2B4-X FDC-2B4-Y FDC-2B4-Z
FDC-2B5-W FDC-2B5-X FDC-2B5-Y FDC-2B5-Z
FDC-2B6-W FDC-2B6-X FDC-2B6-Y FDC-2B6-Z
FDC-2B7-W FDC-2B7-X FDC-2B7-Y FDC-2B7-Z
FDC-2B8-W FDC-2B8-X FDC-2B8-Y FDC-2B8-Z
FDC-2BR-W FDC-2BR-X FDC-2BR-Y FDC-2BR-Z
FDC-2BN-W FDC-2BN-X FDC-2BN-Y FDC-2BN-Z
FDC-2C1-W FDC-2C1-X FDC-2C1-Y FDC-2C1-Z

維修中需要注意一下幾點(diǎn)拆卸、調(diào)整儀表時(shí)，應(yīng)記錄原來的位置，以便復(fù)原。在潮濕環(huán)境下檢修無紙記錄儀故障時(shí)，對印刷線路用萬用表測其各點(diǎn)是否通暢很有必要，因?yàn)檫@種情況下的主要故障是銅箔腐蝕。用萬用表歐姆擋時(shí)，切記不要帶電測量。修理精密無紙記錄儀時(shí)，如不慎將小零件彈飛，可采取磁鐵掃描和視線掃描方法進(jìn)行尋找。檢測電源中的濾波電容時(shí)，應(yīng)先將電解電容器的正負(fù)極短路一下，而且短路時(shí)不要用表筆線來代替導(dǎo)線對電容器進(jìn)行放電，因?yàn)檫@樣容易燒斷芯線。可以取一只帶燈頭引線的220V，60～100W的燈，接于電容器的兩端，在放電瞬間燈泡會閃光。檢修無紙記錄儀內(nèi)部電路時(shí)，如果安裝元件的接點(diǎn)和電路板上涂了絕緣清漆。
玉田縣SANIL開關(guān)SKA-18MS-T,M18,2-8mm,Sheild,AC20-250V

FDC-2C2-W FDC-2C2-X FDC-2C2-Y FDC-2C2-Z
FDC-2C3-W FDC-2C3-X FDC-2C3-Y FDC-2C3-Z
FDC-2C4-W FDC-2C4-X FDC-2C4-Y FDC-2C4-Z
FDC-2C5-W FDC-2C5-X FDC-2C5-Y FDC-2C5-Z
FDC-2C6-W FDC-2C6-X FDC-2C6-Y FDC-2C6-Z
FDC-2C7-W FDC-2C7-X FDC-2C7-Y FDC-2C7-Z
FDC-2C8-W FDC-2C8-X FDC-2C8-Y FDC-2C8-Z
FDC-2CR-W FDC-2CR-X FDC-2CR-Y FDC-2CR-Z
FDC-2CN-W FDC-2CN-X FDC-2CN-Y FDC-2CN-Z
FDC-2D1-W FDC-2D1-X FDC-2D1-Y FDC-2D1-Z
FDC-2D2-W FDC-2D2-X FDC-2D2-Y FDC-2D2-Z
FDC-2D3-W FDC-2D3-X FDC-2D3-Y FDC-2D3-Z
FDC-2D4-W FDC-2D4-X FDC-2D4-Y FDC-2D4-Z
FDC-2D5-W FDC-2D5-X FDC-2D5-Y FDC-2D5-Z
FDC-2D6-W FDC-2D6-X FDC-2D6-Y FDC-2D6-Z
FDC-2D7-W FDC-2D7-X FDC-2D7-Y FDC-2D7-Z
FDC-2D8-W FDC-2D8-X FDC-2D8-Y FDC-2D8-Z
FDC-2DR-W FDC-2DR-X FDC-2DR-Y FDC-2DR-Z
FDC-2DN-W FDC-2DN-X FDC-2DN-Y FDC-2DN-Z
FDC-2E1-W FDC-2E1-X FDC-2E1-Y FDC-2E1-Z
FDC-2E2-W FDC-2E2-X FDC-2E2-Y FDC-2E2-Z
FDC-2E3-W FDC-2E3-X FDC-2E3-Y FDC-2E3-Z
FDC-2E4-W FDC-2E4-X FDC-2E4-Y FDC-2E4-Z
FDC-2E5-W FDC-2E5-X FDC-2E5-Y FDC-2E5-Z
FDC-2E6-W FDC-2E6-X FDC-2E6-Y FDC-2E6-Z
FDC-2E7-W FDC-2E7-X FDC-2E7-Y FDC-2E7-Z
FDC-2E8-W FDC-2E8-X FDC-2E8-Y FDC-2E8-Z
FDC-2ER-W FDC-2ER-X FDC-2ER-Y FDC-2ER-Z
FDC-2EN-W FDC-2EN-X FDC-2EN-Y FDC-2EN-Z

工作原理編輯開關(guān)電源的工作過程相當(dāng)容易理解，在線性電源中，讓功率晶體管工作在線性模式，與線性電源不同的是，PWM開關(guān)電源是讓功率晶體管工作在導(dǎo)通和關(guān)斷的狀態(tài)，在這兩種狀態(tài)中，加在功率晶體管上的伏-安乘積是很小的（在導(dǎo)通時(shí)，電壓低，電流大；關(guān)斷時(shí)，電壓高，電流小）/功率器件上的伏安乘積就是功率半導(dǎo)體器件上所產(chǎn)生的損耗。與線性電源相比，PWM開關(guān)電源更為有效的工作過程是通過“斬波”，即把輸入的直流電壓斬成幅值等于輸入電壓幅值的脈沖電壓來實(shí)現(xiàn)的。開關(guān)電源伯特圖開關(guān)電源伯特圖脈沖的占空比由開關(guān)電源的控制器來調(diào)節(jié)。一旦輸入電壓被斬成交流方波，其幅值就可以通過變壓器來升高或降低。通過增加變壓器的二次繞組數(shù)就可以增加輸出的電壓值。
玉田縣SANIL開關(guān)SKA-18MS-T,M18,2-8mm,Sheild,AC20-250V