海南省全新WISE儀表P1114A4DBI03460 P1114B4DBI03460

海南省全新WISE儀表P1114A4DBI03460 P1114B4DBI03460 中山立訊電氣批發(fā)Hanil Electric Heat Engineering Company加熱器HG1E94 HG1E95 HG1J25
中山立訊電氣批發(fā)Hanil Electric Heat Engineering Company加熱器HINL-5310 HINL-5312
中山立訊電氣批發(fā)Hanil Electric Heat Engineering Company加熱器HMG60A11T HMG60A12T
中山立訊電氣批發(fā)Hanil Electric Heat Engineering Company加熱器HB13A6 HB13A6U HB13A1
中山立訊電氣批發(fā)Hanil Electric Heat Engineering Company加熱器HE3A51 HE3M77 HE3J77
中山立訊電氣批發(fā)Hanil Electric Heat Engineering Company加熱器HJ7A81 HJ7A25 HJ7A26
中山立訊電氣批發(fā)Hanil Electric Heat Engineering Company加熱器BHS1134 HN60M8W
中山立訊電氣批發(fā)Hanil Electric Heat Engineering Company加熱器HB11K7 HB11L2
中山立訊電氣批發(fā)Hanil Electric Heat Engineering Company加熱器HB100A5 HB100A6
中山立訊電氣批發(fā)Hanil Electric Heat Engineering Company加熱器TCO-30,21kW~ 30kW
中山立訊電氣批發(fā)Hanil Electric Heat Engineering Company加熱器HP2N290T HZ2N1DS
中山立訊電氣批發(fā)Hanil Electric Heat Engineering Company加熱器HP400A3 HP400A5 HP500A1

工作原理編輯開關(guān)電源的工作相當(dāng)容易理解，在線性電源中，讓功率晶體管工作在線性，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?。?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。通過變壓器的二次繞組數(shù)就可以輸出的電壓值。因此為了輸出電壓誤差，反饋電阻的取值應(yīng)該很大。由于3V工作電壓時(shí)，MAX4544的導(dǎo)通電阻僅為120Ω，因此開關(guān)MAX4544引入的誤差電壓很小，即使低輸出電壓也是如此。當(dāng)使能升壓變換器，且其輸出電壓超過MAX810的復(fù)位門檻電平并經(jīng)過復(fù)位后，MAX810的輸出將由高變低，使Q1導(dǎo)通，連通負(fù)載。同時(shí)，MAX810輸出的低電平使MAX4544的COM端與NC端（常閉端）接通，使得反饋電阻由Q1的源極切換至Q1的漏極，從而允許從遠(yuǎn)離變換器的負(fù)載端對(duì)輸出電行調(diào)節(jié)。上述MAX4544的開關(guān)也把MAX810的輸入端從Q1的源極切換到Q1的漏極，這樣一來，MAX810可以用來監(jiān)測(cè)負(fù)載是否過載。，海南省全新WISE儀表P1114A4DBI03460 P1114B4DBI03460
中山立訊電氣批發(fā)Hanil Electric Heat Engineering Company加熱器TCS-30,21kW~ 30kW
中山立訊電氣批發(fā)Hanil Electric Heat Engineering Company加熱器HINL-5315 HINL-5318
中山立訊電氣批發(fā)Hanil Electric Heat Engineering Company加熱器HR1P57 HR1P56
中山立訊電氣批發(fā)Hanil Electric Heat Engineering Company加熱器HINL-5320 HINA-5302
中山立訊電氣批發(fā)Hanil Electric Heat Engineering Company加熱器HL7A52 HL7C17
中山立訊電氣批發(fā)Hanil Electric Heat Engineering Company加熱器H-031221-24 H-031222-24
中山立訊電氣批發(fā)Hanil Electric Heat Engineering Company加熱器HB4A8 HB4N21 HB130A1
中山立訊電氣批發(fā)Hanil Electric Heat Engineering Company加熱器HJ9A14 HJ9A12
中山立訊電氣批發(fā)Hanil Electric Heat Engineering Company加熱器HMGX60A3 HG2T6 HG6A83
中山立訊電氣批發(fā)Hanil Electric Heat Engineering Company加熱器KM-ST20 KM-ST30
中山立訊電氣批發(fā)Hanil Electric Heat Engineering Company加熱器HP2N289T HP2N289
中山立訊電氣批發(fā)Hanil Electric Heat Engineering Company加熱器HG7A43 HG7J1U3QU HG7J27
中山立訊電氣批發(fā)Hanil Electric Heat Engineering Company加熱器BT18A12A1 BT24A18A2
中山立訊電氣批發(fā)Hanil Electric Heat Engineering Company加熱器HG1J43 HG1J32 HG7A41
中山立訊電氣批發(fā)Hanil Electric Heat Engineering Company加熱器BB36A30A4 BI18A12A1
中山立訊電氣批發(fā)Hanil Electric Heat Engineering Company加熱器HL11J216 HL11J217
中山立訊電氣批發(fā)Hanil Electric Heat Engineering Company加熱器STAR-ET-ET-210-K-E-K-T
中山立訊電氣批發(fā)Hanil Electric Heat Engineering Company加熱器HJ14A39 HJ14Q3
中山立訊電氣批發(fā)Hanil Electric Heat Engineering Company加熱器K3C-03-M1 K3C-03-M2
中山立訊電氣批發(fā)Hanil Electric Heat Engineering Company加熱器HG1P51 HG1J45 HG1J46
中山立訊電氣批發(fā)Hanil Electric Heat Engineering Company加熱器HB4Q56 HMJ7A52 HB7A52
中山立訊電氣批發(fā)Hanil Electric Heat Engineering Company加熱器STAR-ET-ET-215-K-E-K-T
中山立訊電氣批發(fā)Hanil Electric Heat Engineering Company加熱器HMJ25L6 HMJ25L5
中山立訊電氣批發(fā)Hanil Electric Heat Engineering Company加熱器STAR-JT-JT-205-J-E-J-T
中山立訊電氣批發(fā)Hanil Electric Heat Engineering Company加熱器SKM-ST302 SKM-ST251
中山立訊電氣批發(fā)Hanil Electric Heat Engineering Company加熱器HE4A29 HE4A30 HE4J30
中山立訊電氣批發(fā)Hanil Electric Heat Engineering Company加熱器K3C-04-M4 K3C-05-M4
中山立訊電氣批發(fā)Hanil Electric Heat Engineering Company加熱器HG3J63 HG4A87 HG4A94
中山立訊電氣批發(fā)Hanil Electric Heat Engineering Company加熱器HP200A3 HP200A5
中山立訊電氣批發(fā)Hanil Electric Heat Engineering Company加熱器HM1J73 HM1K1
中山立訊電氣批發(fā)Hanil Electric Heat Engineering Company加熱器HJ2B25 HJ2J110
中山立訊電氣批發(fā)Hanil Electric Heat Engineering Company加熱器HL9J14 HL9J12 HL10A52
中山立訊電氣批發(fā)Hanil Electric Heat Engineering Company加熱器HZ51K6KW HZ2A1 HZ2J3
中山立訊電氣批發(fā)Hanil Electric Heat Engineering Company加熱器HY3Q2 HY3Q1 HY2E3
中山立訊電氣批發(fā)Hanil Electric Heat Engineering Company加熱器HR7C18 HG11A32
中山立訊電氣批發(fā)Hanil Electric Heat Engineering Company加熱器HM40A1 HM40A2 HM40A3
無紙記錄儀和無線通訊技術(shù)的有機(jī)結(jié)合，有效的解決了油田地域十分分散，而又急需解決數(shù)據(jù)遠(yuǎn)傳和自動(dòng)控制問題。本文向你介紹彩色無紙記錄儀在國(guó)內(nèi)某大型油田采油集、輸中的應(yīng)用一例?，F(xiàn)場(chǎng)情況編輯油田油井十分分散，往往離采油廠幾公里甚至幾十公里，因此，輸送及天然氣的管線遍布油區(qū)各地，要想實(shí)時(shí)每口井以及各個(gè)區(qū)域的采油/氣量十分困難，多年來，各大油田的采油站、聯(lián)合站、運(yùn)銷處等大都采用各采油站填寫報(bào)表的形式統(tǒng)計(jì)每天每口井以及各個(gè)區(qū)域的采油/氣量，然后通過累加的月產(chǎn)量，這樣的不但要花費(fèi)大量的人力和物力，很易出錯(cuò)，而且在時(shí)間上也嚴(yán)重滯后，采油廠、油田很難動(dòng)態(tài)每口井甚至每個(gè)區(qū)域的采油情況，對(duì)突發(fā)事件難以做出迅速反應(yīng)。粘度應(yīng)盡量小。能上述要求的重液有化碳(ρ=1623kg/m3)．(ρ=1489kg/m3。三溴(ρ=2890kg/m3)、等或田其它溶液調(diào)制的混合物。常用的重液密度為1600～2000kg/m3為了便于觀察水位，可加入可溶性染料：如加入0.01%芭豆紅，就能使重液呈鮮艷的紅色。輕液一般用機(jī)油、煤油和汽油按不同比例混合即可。并加入適量酚酞，便可使輕液呈棗紅色，常用的輕液密度為700~800kg/m3。轉(zhuǎn)速表是機(jī)械行業(yè)必備的儀器之一，用來測(cè)定電機(jī)的轉(zhuǎn)速、線速度或。常用于電機(jī)、電扇、造紙、塑料、化纖、洗衣機(jī)、汽車、飛機(jī)、輪船等制造業(yè)。大多常用的為手持離心式轉(zhuǎn)速表。轉(zhuǎn)速儀測(cè)量在國(guó)民經(jīng)濟(jì)的各個(gè)領(lǐng)域。，海南省全新WISE儀表P1114A4DBI03460 P1114B4DBI03460
中山立訊電氣批發(fā)Hanil Electric Heat Engineering Company加熱器HL23L51 HL23L55
中山立訊電氣批發(fā)Hanil Electric Heat Engineering Company加熱器HJ7A50 HJ7A95
中山立訊電氣批發(fā)Hanil Electric Heat Engineering Company加熱器STAR-JT-JT-210-K-E-K-T
中山立訊電氣批發(fā)Hanil Electric Heat Engineering Company加熱器HG6A56 HG6A40 HG6A92
中山立訊電氣批發(fā)Hanil Electric Heat Engineering Company加熱器HB160A5 HB160A6
中山立訊電氣批發(fā)Hanil Electric Heat Engineering Company加熱器KM-ST01 KM-ST02
中山立訊電氣批發(fā)Hanil Electric Heat Engineering Company加熱器TCS-20,11kW~ 20kW
中山立訊電氣批發(fā)Hanil Electric Heat Engineering Company加熱器HINA073384 HINA073153
中山立訊電氣批發(fā)Hanil Electric Heat Engineering Company加熱器HE3A48 HE3A49 HE3A124
中山立訊電氣批發(fā)Hanil Electric Heat Engineering Company加熱器HA2 HA3 HM13S9
中山立訊電氣批發(fā)Hanil Electric Heat Engineering Company加熱器H-031221-06 H-031222-06
中山立訊電氣批發(fā)Hanil Electric Heat Engineering Company加熱器H-ST10 H-ST15
中山立訊電氣批發(fā)Hanil Electric Heat Engineering Company加熱器HN4J47 HN5A19 HN5A12
中山立訊電氣批發(fā)Hanil Electric Heat Engineering Company加熱器HG12A47 HG12A45 HG12L1U4
中山立訊電氣批發(fā)Hanil Electric Heat Engineering Company加熱器HG8J21 HG8R4W
中山立訊電氣批發(fā)Hanil Electric Heat Engineering Company加熱器TCO-80,51kW~ 80kW
中山立訊電氣批發(fā)Hanil Electric Heat Engineering Company加熱器HN18A15 HN18A13
中山立訊電氣批發(fā)Hanil Electric Heat Engineering Company加熱器HR23L1 HR600M5
中山立訊電氣批發(fā)Hanil Electric Heat Engineering Company加熱器HL5J44 HL5J45 HL6A64
中山立訊電氣批發(fā)Hanil Electric Heat Engineering Company加熱器HY2E2 HY2E1 HY1Z1
中山立訊電氣批發(fā)Hanil Electric Heat Engineering Company加熱器HB80A3 HB80A5
中山立訊電氣批發(fā)Hanil Electric Heat Engineering Company加熱器HB2N51 HB61M5
中山立訊電氣批發(fā)Hanil Electric Heat Engineering Company加熱器HG7J28 HG8A32 HG8A53
其范圍為2-9.9倍，撥碼左邊一個(gè)表示1倍，右邊一個(gè)表示0.1倍。當(dāng)其值為0時(shí)則為3倍。若設(shè)定電流為2.6A，速動(dòng)倍數(shù)為3倍，則當(dāng)電流達(dá)到3×2.6=7.8時(shí)，會(huì)不經(jīng)延時(shí)而直接。注意，無輔助電源產(chǎn)品速動(dòng)后斷電方可返回。新產(chǎn)品，采用導(dǎo)軌和固定安裝型，采用PLC型外殼，體積小，安裝方便，度高，是非常的產(chǎn)品。項(xiàng)目編輯觸點(diǎn)電阻用表的電阻檔，測(cè)量常閉觸點(diǎn)與動(dòng)點(diǎn)電阻，其阻值應(yīng)為0，(用更加可測(cè)得觸點(diǎn)阻值在100毫歐以內(nèi))；而常開觸點(diǎn)與動(dòng)點(diǎn)的阻值就為無窮大。由此可以區(qū)別出那個(gè)是常閉觸點(diǎn)，那個(gè)是常開觸點(diǎn)。線圈電阻可用表R×10Ω檔測(cè)量繼電器線圈的阻值，從而判斷該線圈是否存在著開路現(xiàn)象。吸合電壓電流找來可調(diào)穩(wěn)壓電源和電流表。高壓高壓熔絲在高壓電塔與電線桿上，經(jīng)常使用兼具啟斷開關(guān)功能的熔絲鏈開關(guān)(FuseCutout)，作為輸配電的過電流或短路保護(hù)。其他類型編輯可恢復(fù)式絲自恢復(fù)絲或過流保護(hù)片[3]。自恢復(fù)絲自恢復(fù)絲溫度片溫度片當(dāng)溫度超過一定的溫度后會(huì)變形斷電，溫度回復(fù)即可復(fù)原。溫度絲溫度絲（Thermalcutoff）常見于現(xiàn)今的電熱類裝置之中，當(dāng)溫度超過一定的溫度后會(huì)熔斷。具有溫度絲的裝置例如：電鍋、電熱器、咖啡機(jī)、吹風(fēng)機(jī)等。溫度絲的規(guī)格中雖也有容許電流一項(xiàng)，但要注意的是：溫度絲并沒有與電流絲一樣的電流保護(hù)作用，不可混淆。，海南省全新WISE儀表P1114A4DBI03460 P1114B4DBI03460
中山立訊電氣批發(fā)Hanil Electric Heat Engineering Company加熱器HG2J110 HG2J81 HG2J118
中山立訊電氣批發(fā)Hanil Electric Heat Engineering Company加熱器HM2P56 HM3A57
中山立訊電氣批發(fā)Hanil Electric Heat Engineering Company加熱器HR1J2 HR12J3W
中山立訊電氣批發(fā)Hanil Electric Heat Engineering Company加熱器HMJ7A56 HB7A56
中山立訊電氣批發(fā)Hanil Electric Heat Engineering Company加熱器H-250200-02 H-250200-04
中山立訊電氣批發(fā)Hanil Electric Heat Engineering Company加熱器HE1J39 HE1J41 HE1J42
中山立訊電氣批發(fā)Hanil Electric Heat Engineering Company加熱器SKM-ST303 SKM-ST401
中山立訊電氣批發(fā)Hanil Electric Heat Engineering Company加熱器H-250500-02 SKM-ST301
中山立訊電氣批發(fā)Hanil Electric Heat Engineering Company加熱器HG2A56 HG2A81 HG5K214
中山立訊電氣批發(fā)Hanil Electric Heat Engineering Company加熱器HINA-5304 HINA-5312
中山立訊電氣批發(fā)Hanil Electric Heat Engineering Company加熱器HG1P5 HGX100A5
中山立訊電氣批發(fā)Hanil Electric Heat Engineering Company加熱器HG9A37 HG9J20 HG9J12
中山立訊電氣批發(fā)Hanil Electric Heat Engineering Company加熱器K3C-01-M3 K3C-03-M4
中山立訊電氣批發(fā)Hanil Electric Heat Engineering Company加熱器HN6A19 HN6A20
中山立訊電氣批發(fā)Hanil Electric Heat Engineering Company加熱器HPE9A6D HPE5A6S
中山立訊電氣批發(fā)Hanil Electric Heat Engineering Company加熱器HMJ40A14T HB1L52
中山立訊電氣批發(fā)Hanil Electric Heat Engineering Company加熱器HG4A951T HG4A54 HG4A163
中山立訊電氣批發(fā)Hanil Electric Heat Engineering Company加熱器TCS-150,101kW~150kW
中山立訊電氣批發(fā)Hanil Electric Heat Engineering Company加熱器HJ16A12 HJ16A33
中山立訊電氣批發(fā)Hanil Electric Heat Engineering Company加熱器HMJ39G1 HMJ1P9
中山立訊電氣批發(fā)Hanil Electric Heat Engineering Company加熱器HN10A15 HN10A14
中山立訊電氣批發(fā)Hanil Electric Heat Engineering Company加熱器HB16R3 HB16R3H HB17C1
中山立訊電氣批發(fā)Hanil Electric Heat Engineering Company加熱器HL23L55 HL46U1TKW
中山立訊電氣批發(fā)Hanil Electric Heat Engineering Company加熱器HMJ25Z1W HMJ25Z2 HMJ25Z1

b)當(dāng)I/Is>2時(shí),平均誤差不大于5%+30ms。整定起動(dòng)電流整定：起動(dòng)電流整定開關(guān)為左一組撥碼開關(guān)(共兩個(gè))，左面一個(gè)表示1，右面一個(gè)表示0.1。若其值為5和6，則其整定值為5.6A。注意其范圍為無輔助電壓產(chǎn)品2-9.9A，級(jí)差是0.1。反時(shí)限特性曲線K值整定：K值整定開關(guān)為左第三組撥碼開關(guān)(共二個(gè)),左邊一個(gè)為表示1級(jí)；右邊一個(gè)表示0.1級(jí)。本產(chǎn)品K值整定范圍為0.1~9.9，(舉例)比如其值設(shè)定為5.0，過流值設(shè)定為5.0，輸入實(shí)際電流為30A時(shí)那么它的延時(shí)時(shí)間為13.5秒，但其速斷倍數(shù)值應(yīng)設(shè)定為6倍以上。速動(dòng)倍數(shù)整定：速動(dòng)倍數(shù)選擇開關(guān)為左第二組撥碼開關(guān)。由于電壓互感器內(nèi)阻抗很小，若二次回路短路時(shí)，會(huì)出現(xiàn)很大的電流，將損壞二次設(shè)備甚至危及人身。電壓互感器可以在二次側(cè)裝設(shè)熔斷器以保護(hù)其自身不因二次側(cè)短路而損壞。在可能的情況下，一次側(cè)也應(yīng)裝設(shè)熔斷器以保護(hù)高壓電網(wǎng)不因互感器高壓繞組或引線故障危及一次的。5．為了確保人在測(cè)量?jī)x表和繼電器時(shí)的，電壓互感器二次繞組必須有一點(diǎn)接地。因?yàn)榻拥睾?，?dāng)一次和二次繞組間的絕緣損壞時(shí)，可以防止儀表和繼電器出現(xiàn)高電壓危及人身。電壓互感器副邊不容許短路。[8]異常與處理編輯常見異常（1）三相電壓指示不平衡：一相（可為零），另兩相正常，線電壓不正常，或伴有聲、光，可能是互感器高壓或低壓熔斷器熔斷[9]；（2）中性點(diǎn)非有效接地。，海南省全新WISE儀表P1114A4DBI03460 P1114B4DBI03460