那曲地區(qū)SANIL開關(guān)SD-30MS-LS,M30,10mm,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

RTD-2A1-W RTD-2A1-X RTD-2A1-Y RTD-2A1-Z
RTD-2A2-W RTD-2A2-X RTD-2A2-Y RTD-2A2-Z
RTD-2A3-W RTD-2A3-X RTD-2A3-Y RTD-2A3-Z
RTD-2A4-W RTD-2A4-X RTD-2A4-Y RTD-2A4-Z
RTD-2A5-W RTD-2A5-X RTD-2A5-Y RTD-2A5-Z
RTD-2A6-W RTD-2A6-X RTD-2A6-Y RTD-2A6-Z
RTD-2A7-W RTD-2A7-X RTD-2A7-Y RTD-2A7-Z
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

其周期決定于kf，振幅決定于ku,中曲線①，載波為雙極性的等腰三角波，其周期決定于載波頻率，振幅不變，與ku=1時正弦波的振幅值相等。調(diào)制波與載波的交點(diǎn)決定了逆變橋輸出相電壓的脈沖系列，此脈沖系列也是雙極性的，但是，由相電壓合成為線電壓(uab=ua-ub;ubc=ub-uc;uca=uc-ua)時，所得到的線電壓脈沖系列卻是單極性的。(2)雙極性調(diào)制的工作特點(diǎn)：逆變橋在工作時，同一橋臂的兩個逆變器件總是按相電壓脈沖系列的規(guī)律交替地導(dǎo)通和關(guān)斷，毫不停息，而流過負(fù)載ZL的是按線電壓規(guī)律變化的交變電流。實(shí)施SPWM的基本要求(1)必須實(shí)時地計算調(diào)制波(正弦波)和載波(三角波)的所有交點(diǎn)的時間坐標(biāo)。
那曲地區(qū)SANIL開關(guān)SD-30MS-LS,M30,10mm,

RTD-2C7-W RTD-2C7-X RTD-2C7-Y RTD-2C7-Z
RTD-2C8-W RTD-2C8-X RTD-2C8-Y RTD-2C8-Z
RTD-2CR-W RTD-2CR-X RTD-2CR-Y RTD-2CR-Z
RTD-2CN-W RTD-2CN-X RTD-2CN-Y RTD-2CN-Z
RTD-2D1-W RTD-2D1-X RTD-2D1-Y RTD-2D1-Z
RTD-2D2-W RTD-2D2-X RTD-2D2-Y RTD-2D2-Z
RTD-2D3-W RTD-2D3-X RTD-2D3-Y RTD-2D3-Z
RTD-2D4-W RTD-2D4-X RTD-2D4-Y RTD-2D4-Z
RTD-2D5-W RTD-2D5-X RTD-2D5-Y RTD-2D5-Z
RTD-2D6-W RTD-2D6-X RTD-2D6-Y RTD-2D6-Z
RTD-2D7-W RTD-2D7-X RTD-2D7-Y RTD-2D7-Z
RTD-2D8-W RTD-2D8-X RTD-2D8-Y RTD-2D8-Z
RTD-2DR-W RTD-2DR-X RTD-2DR-Y RTD-2DR-Z
RTD-2DN-W RTD-2DN-X RTD-2DN-Y RTD-2DN-Z
RTD-2E1-W RTD-2E1-X RTD-2E1-Y RTD-2E1-Z
RTD-2E2-W RTD-2E2-X RTD-2E2-Y RTD-2E2-Z
RTD-2E3-W RTD-2E3-X RTD-2E3-Y RTD-2E3-Z
RTD-2E4-W RTD-2E4-X RTD-2E4-Y RTD-2E4-Z
RTD-2E5-W RTD-2E5-X RTD-2E5-Y RTD-2E5-Z
RTD-2E6-W RTD-2E6-X RTD-2E6-Y RTD-2E6-Z
RTD-2E7-W RTD-2E7-X RTD-2E7-Y RTD-2E7-Z
RTD-2E8-W RTD-2E8-X RTD-2E8-Y RTD-2E8-Z
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
RTD-2F3-W RTD-2F3-X RTD-2F3-Y RTD-2F3-Z
RTD-2F4-W RTD-2F4-X RTD-2F4-Y RTD-2F4-Z
RTD-2F5-W RTD-2F5-X RTD-2F5-Y RTD-2F5-Z
RTD-2F6-W RTD-2F6-X RTD-2F6-Y RTD-2F6-Z
RTD-2F7-W RTD-2F7-X RTD-2F7-Y RTD-2F7-Z
RTD-2F8-W RTD-2F8-X RTD-2F8-Y RTD-2F8-Z
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
RTD-2G4-W RTD-2G4-X RTD-2G4-Y RTD-2G4-Z
RTD-2G5-W RTD-2G5-X RTD-2G5-Y RTD-2G5-Z
RTD-2G6-W RTD-2G6-X RTD-2G6-Y RTD-2G6-Z
RTD-2G7-W RTD-2G7-X RTD-2G7-Y RTD-2G7-Z
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
RTD-2H4-W RTD-2H4-X RTD-2H4-Y RTD-2H4-Z
RTD-2H5-W RTD-2H5-X RTD-2H5-Y RTD-2H5-Z
RTD-2H6-W RTD-2H6-X RTD-2H6-Y RTD-2H6-Z
RTD-2H7-W RTD-2H7-X RTD-2H7-Y RTD-2H7-Z
RTD-2H8-W RTD-2H8-X RTD-2H8-Y RTD-2H8-Z
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
RTD-2I2-W RTD-2I2-X RTD-2I2-Y RTD-2I2-Z
RTD-2I3-W RTD-2I3-X RTD-2I3-Y RTD-2I3-Z
RTD-2I4-W RTD-2I4-X RTD-2I4-Y RTD-2I4-Z
RTD-2I5-W RTD-2I5-X RTD-2I5-Y RTD-2I5-Z
RTD-2I6-W RTD-2I6-X RTD-2I6-Y RTD-2I6-Z
RTD-2I7-W RTD-2I7-X RTD-2I7-Y RTD-2I7-Z
RTD-2I8-W RTD-2I8-X RTD-2I8-Y RTD-2I8-Z
RTD-2IR-W RTD-2IR-X RTD-2IR-Y RTD-2IR-Z
RTD-2IN-W RTD-2IN-X RTD-2IN-Y RTD-2IN-Z
RTD-2J1-W RTD-2J1-X RTD-2J1-Y RTD-2J1-Z
RTD-2J2-W RTD-2J2-X RTD-2J2-Y RTD-2J2-Z
RTD-2J3-W RTD-2J3-X RTD-2J3-Y RTD-2J3-Z
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RTD-2J8-W RTD-2J8-X RTD-2J8-Y RTD-2J8-Z
RTD-2JR-W RTD-2JR-X RTD-2JR-Y RTD-2JR-Z
RTD-2JN-W RTD-2JN-X RTD-2JN-Y RTD-2JN-Z
RTD-2K1-W RTD-2K1-X RTD-2K1-Y RTD-2K1-Z
RTD-2K2-W RTD-2K2-X RTD-2K2-Y RTD-2K2-Z
RTD-2K3-W RTD-2K3-X RTD-2K3-Y RTD-2K3-Z
RTD-2K4-W RTD-2K4-X RTD-2K4-Y RTD-2K4-Z
RTD-2K5-W RTD-2K5-X RTD-2K5-Y RTD-2K5-Z
RTD-2K6-W RTD-2K6-X RTD-2K6-Y RTD-2K6-Z
RTD-2K7-W RTD-2K7-X RTD-2K7-Y RTD-2K7-Z
RTD-2K8-W RTD-2K8-X RTD-2K8-Y RTD-2K8-Z
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
RTD-2L3-W RTD-2L3-X RTD-2L3-Y RTD-2L3-Z
RTD-2L4-W RTD-2L4-X RTD-2L4-Y RTD-2L4-Z
RTD-2L5-W RTD-2L5-X RTD-2L5-Y RTD-2L5-Z
RTD-2L6-W RTD-2L6-X RTD-2L6-Y RTD-2L6-Z
RTD-2L7-W RTD-2L7-X RTD-2L7-Y RTD-2L7-Z
RTD-2L8-W RTD-2L8-X RTD-2L8-Y RTD-2L8-Z
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
RTD-2R3-W RTD-2R3-X RTD-2R3-Y RTD-2R3-Z
RTD-2R4-W RTD-2R4-X RTD-2R4-Y RTD-2R4-Z
RTD-2R5-W RTD-2R5-X RTD-2R5-Y RTD-2R5-Z
RTD-2R6-W RTD-2R6-X RTD-2R6-Y RTD-2R6-Z
RTD-2R7-W RTD-2R7-X RTD-2R7-Y RTD-2R7-Z
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
RTD-4A4-W RTD-4A4-X RTD-4A4-Y RTD-4A4-Z
RTD-4A5-W RTD-4A5-X RTD-4A5-Y RTD-4A5-Z
RTD-4A6-W RTD-4A6-X RTD-4A6-Y RTD-4A6-Z
RTD-4A7-W RTD-4A7-X RTD-4A7-Y RTD-4A7-Z
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
RTD-4B2-W RTD-4B2-X RTD-4B2-Y RTD-4B2-Z
RTD-4B3-W RTD-4B3-X RTD-4B3-Y RTD-4B3-Z
RTD-4B4-W RTD-4B4-X RTD-4B4-Y RTD-4B4-Z
RTD-4B5-W RTD-4B5-X RTD-4B5-Y RTD-4B5-Z
RTD-4B6-W RTD-4B6-X RTD-4B6-Y RTD-4B6-Z
RTD-4B7-W RTD-4B7-X RTD-4B7-Y RTD-4B7-Z
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
RTD-4C4-W RTD-4C4-X RTD-4C4-Y RTD-4C4-Z
RTD-4C5-W RTD-4C5-X RTD-4C5-Y RTD-4C5-Z
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
RTD-4D3-W RTD-4D3-X RTD-4D3-Y RTD-4D3-Z
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

例如個人電腦，而開關(guān)電源就進(jìn)行兩者之間電壓及電流的轉(zhuǎn)換。開關(guān)電源不同于線性電源，開關(guān)電源利用的切換晶體管多半是在全開模式（飽和區(qū)）及全閉模式（截止區(qū)）之間切換，這兩個模式都有低耗散的特點(diǎn)，切換之間的轉(zhuǎn)換會有較高的耗散，但時間很短，因此比較節(jié)省能源，產(chǎn)生廢熱較少。理想上，開關(guān)電源本身是不會消耗電能的。電壓穩(wěn)壓是透過調(diào)整晶體管導(dǎo)通及斷路的時間來達(dá)到。相反的，線性電源在產(chǎn)生輸出電壓的過程中，晶體管工作在放大區(qū)，本身也會消耗電能。開關(guān)電源的高轉(zhuǎn)換效率是其一大優(yōu)點(diǎn)，而且因?yàn)殚_關(guān)電源工作頻率高，可以使用小尺寸、輕重量的變壓器，因此開關(guān)電源也會比線性電源的尺寸要小，重量也會比較輕。若電源的高效率、體積及重量是考慮重點(diǎn)時。
那曲地區(qū)SANIL開關(guān)SD-30MS-LS,M30,10mm,

RTD-4E8-W RTD-4E8-X RTD-4E8-Y RTD-4E8-Z
RTD-4ER-W RTD-4ER-X RTD-4ER-Y RTD-4ER-Z
RTD-4EN-W RTD-4EN-X RTD-4EN-Y RTD-4EN-Z
RTD-4F1-W RTD-4F1-X RTD-4F1-Y RTD-4F1-Z
RTD-4F2-W RTD-4F2-X RTD-4F2-Y RTD-4F2-Z
RTD-4F3-W RTD-4F3-X RTD-4F3-Y RTD-4F3-Z
RTD-4F4-W RTD-4F4-X RTD-4F4-Y RTD-4F4-Z
RTD-4F5-W RTD-4F5-X RTD-4F5-Y RTD-4F5-Z
RTD-4F6-W RTD-4F6-X RTD-4F6-Y RTD-4F6-Z
RTD-4F7-W RTD-4F7-X RTD-4F7-Y RTD-4F7-Z
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
RTD-4G5-W RTD-4G5-X RTD-4G5-Y RTD-4G5-Z
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
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主要目標(biāo)在保護(hù)暴露於不同等級之危險性的機(jī)械操作人員。中文名繼電器外文名Safetyrelay組合數(shù)個繼電器與電路組合而成目的要能互補(bǔ)彼此的異常缺陷主要目標(biāo)保護(hù)暴露於不同等級之危險性目錄1基本信息?定義?要求?用途2原理?電磁式?熱敏干簧?固態(tài)式3使用方法基本信息編輯定義所謂“繼電器”并不是“沒有故障的繼電器”，而是發(fā)生故障時做出有規(guī)則的動作，它具有強(qiáng)制導(dǎo)向接點(diǎn)結(jié)構(gòu)，萬一發(fā)生接點(diǎn)熔結(jié)現(xiàn)象時也能確保，這一點(diǎn)同一般繼電器完全不同。繼電器是一個回路中所必須的控制部分，它接受輸入，通過內(nèi)部回路的判斷，確定性的輸出開關(guān)信號到設(shè)備的控制回路里。簡單地說，繼電器都是雙通道信號型，只有兩個通道信號都正常時，繼電器才能正常工作；
那曲地區(qū)SANIL開關(guān)SD-30MS-LS,M30,10mm,

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當(dāng)KNI2>I1時，比差為正，反之為負(fù)。對于沒有采取補(bǔ)償措施的電流互感器，比差為負(fù)值，角差為正值，比差的值和角差均隨電流增大而減小。采用補(bǔ)償?shù)霓k法可以減小互感器的誤差。一般通過在互感器上加繞附加繞組或增添附加鐵心，以及接入相應(yīng)的電阻、電感、電容元件來補(bǔ)償。常用的補(bǔ)償法有匝數(shù)補(bǔ)償、分?jǐn)?shù)匝補(bǔ)償、小鐵心補(bǔ)償、并聯(lián)電容補(bǔ)償?shù)?。校?yàn)方法在進(jìn)行電流互感器誤差試驗(yàn)之前，通常需要檢查極性和退磁等試驗(yàn)。極性檢查電流互感器一次繞組標(biāo)志為PP2，二次繞組標(biāo)志為SS2。若PS1是同名端，則這種標(biāo)志叫減極性。一次電流從P1進(jìn)，二次電流從S1出。極性檢查很簡單，除了可以在互感器校驗(yàn)儀上進(jìn)行檢查外，還可以使用直流檢查法。
那曲地區(qū)SANIL開關(guān)SD-30MS-LS,M30,10mm,

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故在電路中起著自動調(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)到整定值而動作，然后處于動后狀態(tài)；后者由于電壓值減少達(dá)到整定值而動作，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，鐵芯將舌片吸合。
那曲地區(qū)SANIL開關(guān)SD-30MS-LS,M30,10mm,