長(zhǎng)沙市SANIL開(kāi)關(guān)SKAC-18M-T,SKAC-18MB-T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
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二次側(cè)一旦開(kāi)路應(yīng)馬上撤掉電路負(fù)載，然后，再停電處理。一切處理好后方可再用。4）為了滿足測(cè)量?jī)x表、繼電保護(hù)、斷路器失靈判斷和故障濾波等裝置的需要，在發(fā)電機(jī)、變壓器、出線、母線分段斷路器、母線斷路器、旁路斷路器等回路中均設(shè)2～8個(gè)二次繞阻的電流互感器。5）對(duì)于保護(hù)用電流互感器的裝設(shè)地點(diǎn)應(yīng)按盡量消除主保護(hù)裝置的不保護(hù)區(qū)來(lái)設(shè)置。例如：若有兩組電流互感器，且位置允許時(shí)，應(yīng)設(shè)在斷路器兩側(cè)，使斷路器處于交叉保護(hù)范圍之中6）為了防止支柱式電流互感器套管閃絡(luò)造成母線故障，電流互感器通常布置在斷路器的出線或變壓器側(cè)7）為了減輕發(fā)電機(jī)內(nèi)部故障時(shí)的損傷，用于自動(dòng)調(diào)節(jié)勵(lì)磁裝置的電流互感器應(yīng)布置在發(fā)電機(jī)定子繞組的出線側(cè)。為了便于分析和在發(fā)電機(jī)并入系統(tǒng)前發(fā)現(xiàn)內(nèi)部故障。
長(zhǎng)沙市SANIL開(kāi)關(guān)SKAC-18M-T,SKAC-18MB-T
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動(dòng)觸點(diǎn)就移動(dòng)，使原來(lái)斷開(kāi)的成閉合，原來(lái)閉合的成斷開(kāi)狀態(tài)，達(dá)到轉(zhuǎn)換的目的。這樣的觸點(diǎn)組稱為轉(zhuǎn)換觸點(diǎn)。用“轉(zhuǎn)”字的拼音字頭“z”表示。選用編輯1.先了解必要的條件①控制電路的電源電壓，能提供的電流；②被控制電路中的電壓和電流；③被控電路需要幾組、什么形式的觸點(diǎn)。選用繼電器時(shí)，一般控制電路的電源電壓可作為選用的依據(jù)？刂齐娐窇(yīng)能給繼電器提供足夠的工作電流，否則繼電器吸合是不穩(wěn)定的。2.查閱有關(guān)資料確定使用條件后，可查找相關(guān)資料，找出需要的繼電器的型號(hào)和規(guī)格號(hào)。若手頭已有繼電器，可依據(jù)資料核對(duì)是否可以利用。后考慮尺寸是否合適。3.注意器具的容積。若是用于一般用電器，除考慮機(jī)箱容積外，小型繼電器主要考慮電路板安裝布局。
長(zhǎng)沙市SANIL開(kāi)關(guān)SKAC-18M-T,SKAC-18MB-T
MUL-4F5-W MUL-4F5-X MUL-4F5-Y MUL-4F5-Z
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MUL-7E3-W MUL-7E3-X MUL-7E3-Y MUL-7E3-Z
MUL-7E4-W MUL-7E4-X MUL-7E4-Y MUL-7E4-Z
MUL-7E5-W MUL-7E5-X MUL-7E5-Y MUL-7E5-Z
MUL-7E6-W MUL-7E6-X MUL-7E6-Y MUL-7E6-Z
MUL-7E7-W MUL-7E7-X MUL-7E7-Y MUL-7E7-Z
MUL-7E8-W MUL-7E8-X MUL-7E8-Y MUL-7E8-Z
MUL-7ER-W MUL-7ER-X MUL-7ER-Y MUL-7ER-Z
MUL-7EN-W MUL-7EN-X MUL-7EN-Y MUL-7EN-Z
MUL-7F1-W MUL-7F1-X MUL-7F1-Y MUL-7F1-Z
MUL-7F2-W MUL-7F2-X MUL-7F2-Y MUL-7F2-Z
t為熱穩(wěn)定電流時(shí)間。額定容量電流互感器二次額定容量要大于實(shí)際二次負(fù)載，實(shí)際二次負(fù)載應(yīng)為25～二次額定容量。容量決定二次側(cè)負(fù)載阻抗，負(fù)載阻抗又影響測(cè)量或控制精度。負(fù)載阻抗主要受測(cè)量?jī)x表和繼電器線圈電阻、電抗及接線接觸電阻、二次連接導(dǎo)線電阻的影響。使用注意事項(xiàng)編輯使用原則1）電流互感器的接線應(yīng)遵守串聯(lián)原則[8]：即一次繞阻應(yīng)與被測(cè)電路串聯(lián)，而二次繞阻則與所有儀表負(fù)載電流互感器電流互感器串聯(lián)2）按被測(cè)電流大小，選擇合適的變比，否則誤差將增大。同時(shí)，二次側(cè)一端必須接地，以防絕緣一旦損壞時(shí)，一次側(cè)高壓竄入二次低壓側(cè)，造成人身和設(shè)備事故3）二次側(cè)不允許開(kāi)路，因一旦開(kāi)路，一次側(cè)電流I1全部成為磁化電流，引起φm和E2驟增。
長(zhǎng)沙市SANIL開(kāi)關(guān)SKAC-18M-T,SKAC-18MB-T
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
對(duì)于低電壓繼電器，當(dāng)電壓降低到整定電壓時(shí)，繼電器就動(dòng)作，動(dòng)合觸點(diǎn)斷開(kāi)，動(dòng)斷觸點(diǎn)閉合。2.技術(shù)要求1.繼電器額定電壓、整定范圍、功率消耗、返回系數(shù)。2.動(dòng)作值極限誤差：在基準(zhǔn)條件下，繼電器各整定值極限誤差不超過(guò)±6%。3.動(dòng)作值一致性：在基準(zhǔn)條件下，繼電器動(dòng)作值的一致性不超過(guò)6%整定值。4.溫度變化引起的變差：在標(biāo)稱極限溫度下，動(dòng)作電壓的變差不超過(guò)±5%整定值。5.動(dòng)作時(shí)間：在1.1倍實(shí)測(cè)動(dòng)作值時(shí)，過(guò)電壓繼電器的動(dòng)作時(shí)間不大于0.12s（對(duì)DY-32～34/60C不大于0.15s）；在2倍實(shí)測(cè)動(dòng)作值時(shí)，動(dòng)作時(shí)間不大于0.04s（對(duì)DY-32～34/60C不大于0.06s）；低電壓繼電器在0.5倍實(shí)測(cè)動(dòng)作值時(shí)。
長(zhǎng)沙市SANIL開(kāi)關(guān)SKAC-18M-T,SKAC-18MB-T
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
MUL-9BN-W MUL-9BN-X MUL-9BN-Y MUL-9BN-Z
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
MUL-9D2-W MUL-9D2-X MUL-9D2-Y MUL-9D2-Z
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
MUL-9D7-W MUL-9D7-X MUL-9D7-Y MUL-9D7-Z
MUL-9D8-W MUL-9D8-X MUL-9D8-Y MUL-9D8-Z
MUL-9DR-W MUL-9DR-X MUL-9DR-Y MUL-9DR-Z
MUL-9DN-W MUL-9DN-X MUL-9DN-Y MUL-9DN-Z
MUL-9E1-W MUL-9E1-X MUL-9E1-Y MUL-9E1-Z
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
MUL-9E6-W MUL-9E6-X MUL-9E6-Y MUL-9E6-Z
MUL-9E7-W MUL-9E7-X MUL-9E7-Y MUL-9E7-Z
MUL-9E8-W MUL-9E8-X MUL-9E8-Y MUL-9E8-Z
MUL-9ER-W MUL-9ER-X MUL-9ER-Y MUL-9ER-Z
按傳感器原理分浮子式、跟蹤式、壓力式和反射式等。水位記錄方式主要有：記錄紙描述，數(shù)據(jù)顯示或打字記錄,穿孔紙帶,磁帶和固體電路儲(chǔ)存等。水位計(jì)的度一般在1～3厘米以內(nèi)，制造的水位計(jì)的記錄周期有1天、30天和90天等。走時(shí)誤差,機(jī)械鐘為2分/日，石英晶體鐘小于5分/月。分類浮子式水位計(jì)其原理是由浮子感應(yīng)水位的升降。有用機(jī)械方式直接使浮子傳動(dòng)記錄結(jié)構(gòu)的普通水位計(jì)，有把浮子提供的轉(zhuǎn)角量轉(zhuǎn)換成增量電脈沖或二進(jìn)制編碼脈沖作遠(yuǎn)距離傳輸?shù)碾妭、?shù)傳水位計(jì)，還有用微型浮子和許多干簧管組成的數(shù)字傳感水位計(jì)等。應(yīng)用較廣的是機(jī)械式水位計(jì)。應(yīng)用浮子式水位計(jì)需有測(cè)井設(shè)備，只適合于岸坡穩(wěn)定、河床沖淤很小的低含沙量河段使用。測(cè)井見(jiàn)圖1。
長(zhǎng)沙市SANIL開(kāi)關(guān)SKAC-18M-T,SKAC-18MB-T
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
MUL-9H4-W MUL-9H4-X MUL-9H4-Y MUL-9H4-Z
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
MUL-9H8-W MUL-9H8-X MUL-9H8-Y MUL-9H8-Z
MUL-9HR-W MUL-9HR-X MUL-9HR-Y MUL-9HR-Z
MUL-9HN-W MUL-9HN-X MUL-9HN-Y MUL-9HN-Z
動(dòng)作時(shí)間不大于0.15s。6.熱性能：當(dāng)周圍環(huán)境溫度為40℃時(shí)，繼電器能在長(zhǎng)期允許電壓（見(jiàn)表1）下工作，無(wú)絕緣和其它元件損壞，其線圈溫升不超過(guò)65℃。7.過(guò)載能力：當(dāng)繼電器的線圈并聯(lián)時(shí)，在整定值處，使電壓均勻地自1.05倍整定電壓升至2.2倍整定電壓時(shí)，繼電器動(dòng)合觸點(diǎn)不應(yīng)有不能工作的抖動(dòng)。8.絕緣性能a.絕緣電阻不小于300MΩ。b.介質(zhì)強(qiáng)度繼電器各導(dǎo)電電路連在一起與外露的非帶電金屬部分及外殼之間，能承受2kV（有效值）、50Hz的交流電壓歷時(shí)1min的試驗(yàn)，而無(wú)絕緣擊穿或閃絡(luò)現(xiàn)象。9.動(dòng)作可靠性a.在動(dòng)作電壓或返回電壓下，繼電器動(dòng)作過(guò)程中的可動(dòng)系統(tǒng)不應(yīng)停滯在中間位置。b.當(dāng)對(duì)線圈突然施加1.75倍的整定電壓激勵(lì)量時(shí)。
長(zhǎng)沙市SANIL開(kāi)關(guān)SKAC-18M-T,SKAC-18MB-T
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