韓國AUTOMA,ACV233R-32A經(jīng)久耐用中山立訊電氣有限公司直銷中山立訊電氣有限公司銷售韓國DONGYANG F&C 氫氧化鈉自動閥
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DONGYANG F&C 氫氧化鈉自動閥
BDD-1000S BDD-1100S BDD-1200S BDD-1300S BDD-1400S BDD-1500S
BDD-2000S BDD-2100S BDD-2200S BDD-2300S BDD-2400S BDD-2500S
BDD-3000S BDD-3100S BDD-3200S BDD-3300S BDD-3400S BDD-3500S
BDD-1010S BDD-1110S BDD-1210S BDD-1310S BDD-1410S BDD-1510S
BDD-2010S BDD-2110S BDD-2210S BDD-2310S BDD-2410S BDD-2510S
BDD-3010S BDD-3110S BDD-3210S BDD-3310S BDD-3410S BDD-3510S
額定功率在規(guī)定的頻率和電壓下，變壓器能長期工作而不超過規(guī)定溫升的輸出功率。額定電壓指在變壓器的線圈上所允許施加的電壓，工作時不得大于規(guī)定值。電壓比指變壓器初級電壓和次級電壓的比值，有空載電壓比和負(fù)載電壓比的區(qū)別?！ ? 使觸頭間絕緣擊穿，產(chǎn)生真空電弧，由于觸頭形狀和結(jié)構(gòu)的原因，使得真空電弧柱迅速向弧柱體外的真空區(qū)域擴(kuò)散，當(dāng)被分?jǐn)嗟碾娏鹘咏銜r，觸頭間電弧的溫度和壓力急劇下降，使電弧不能繼續(xù)維持而熄滅，高壓跌落熔式斷器的滅弧原理大家都知道在高壓大電流的。
BDD-1020S BDD-1120S BDD-1220S BDD-1320S BDD-1420S BDD-1520S
BDD-2020S BDD-2120S BDD-2220S BDD-2320S BDD-2420S BDD-2520S
BDD-3020S BDD-3120S BDD-3220S BDD-3320S BDD-3420S BDD-3520S
BDD-1001S BDD-1101S BDD-1201S BDD-1301S BDD-1401S BDD-1501S
BDD-2001S BDD-2101S BDD-2201S BDD-2301S BDD-2401S BDD-2501S
BDD-3001S BDD-3101S BDD-3201S BDD-3301S BDD-3401S BDD-3501S
BDD-1011S BDD-1111S BDD-1211S BDD-1311S BDD-1411S BDD-1511S
BDD-2011S BDD-2111S BDD-2211S BDD-2311S BDD-2411S BDD-2511S
在這種，也可以取熱繼電器(或熱元件)的額定電流為電動機(jī)額定電流的60％-80％。3）考慮負(fù)載因素：如負(fù)載性質(zhì)不允許停車、即便過載會使電動機(jī)壽命縮短，也不應(yīng)讓電動機(jī)冒然脫扣，以免生產(chǎn)遭受比電動機(jī)價格高許多倍的巨大損失?！ 》珠l時，永磁交流器除分閘彈簧的作用外，還具有磁極相斥力的作用，這兩種作用使分閘的速度較器快很多，經(jīng)檢測，永磁交流器分閘時間一般小于25ms，而器分閘速度一般在80ms以上。此外，線圈和鐵芯的會降低主觸頭容量，電壓波動導(dǎo)致的吸力不夠或振顫會使器主觸頭、拉弧甚至熔焊。
BDD-3011S BDD-3110S BDD-3211S BDD-3311S BDD-3411S BDD-3511S
BDD-1021S BDD-1121S BDD-1221S BDD-1321S BDD-1421S BDD-1521S
BDD-2021S BDD-2121S BDD-2221S BDD-2321S BDD-2421S BDD-2521S
BDD-3021S BDD-3121S BDD-3221S BDD-3321S BDD-3421S BDD-3521S
BDD-1002S BDD-1102S BDD-1202S BDD-1302S BDD-1402S BDD-1502S
BDD-2002S BDD-2102S BDD-2202S BDD-2302S BDD-2402S BDD-2502S
BDD-3002S BDD-3102S BDD-3202S BDD-3302S BDD-3402S BDD-3502S
BDD-1012S BDD-1112S BDD-1212S BDD-1312S BDD-1412S BDD-1512S
BDD-2012S BDD-2112S BDD-2212S BDD-2312S BDD-2412S BDD-2512S
當(dāng)按下按鈕開關(guān)電路接通時，若直流電壓表或電流表指針向正方向起；松開按鈕開關(guān)電路斷開時，直流電壓表或電流表指針向反方向起，則說明電流互感器為減極性，是正確的。反之為加極性。直流法測定電流互感器的極性，簡便易行，結(jié)果準(zhǔn)確，是工程實踐中常用一種方法。
BDD-3012S BDD-3110S BDD-3212S BDD-3312S BDD-3412S BDD-3512S
BDD-1022S BDD-1122S BDD-1222S BDD-1322S BDD-1422S BDD-1522S
BDD-2022S BDD-2122S BDD-2222S BDD-2322S BDD-2422S BDD-2522S
BDD-3022S BDD-3122S BDD-3222S BDD-3322S BDD-3422S BDD-3522S
BDD-1003S BDD-1103S BDD-1203S BDD-1303S BDD-1403S BDD-1503S
BDD-2003S BDD-2103S BDD-2203S BDD-2303S BDD-2403S BDD-2503S
BDD-3003S BDD-3103S BDD-3203S BDD-3303S BDD-3403S BDD-3503S
BDD-1013S BDD-1113S BDD-1213S BDD-1313S BDD-1413S BDD-1513S
BDD-2013S BDD-2113S BDD-2213S BDD-2313S BDD-2413S BDD-2513S
BDD-3013S BDD-3110S BDD-3213S BDD-3313S BDD-3413S BDD-3513S
BDD-1023S BDD-1123S BDD-1223S BDD-1323S BDD-1423S BDD-1523S
有人問，如果誤將交流器線圈接入等電壓直流電，或者將直流器線圈誤接入等電壓交流電，會怎樣。咱們先來了解交流器和直流器的不同之處。直流器交流器1.鐵芯結(jié)構(gòu)不同。交流器線圈通入的是交流電，會產(chǎn)生渦流，所以交流器鐵芯是由相互絕緣的硅鋼片疊裝而成。 兆歐表的接線柱共有三個：一個為“L”即線端，一個“E”即為地端，再一個“G”即屏蔽端(也叫保護(hù)環(huán))，一般被測絕緣電阻都接在“L”和“E”端之間，但當(dāng)被測絕緣體表面漏電嚴(yán)重時，必須將被測物的屏蔽環(huán)或不須測量的部分與“G”端相連接。
BDD-2023S BDD-2123S BDD-2223S BDD-2323S BDD-2423S BDD-2523S
BDD-3023S BDD-3123S BDD-3223S BDD-3323S BDD-3423S BDD-3523S
BDD-1004S BDD-1104S BDD-1204S BDD-1304S BDD-1404S BDD-1504S
BDD-2004S BDD-2104S BDD-2204S BDD-2304S BDD-2404S BDD-2504S
BDD-3004S BDD-3104S BDD-3204S BDD-3304S BDD-3404S BDD-3504S
BDD-1014S BDD-1114S BDD-1214S BDD-1314S BDD-1414S BDD-1514S
BDD-2014S BDD-2114S BDD-2214S BDD-2314S BDD-2414S BDD-2514S
BDD-3014S BDD-3110S BDD-3214S BDD-3314S BDD-3414S BDD-3514S
BDD-1024S BDD-1124S BDD-1224S BDD-1324S BDD-1424S BDD-1524S
BDD-2024S BDD-2124S BDD-2224S BDD-2324S BDD-2424S BDD-2524S
BDD-3024S BDD-3124S BDD-3224S BDD-3324S BDD-3424S BDD-3524S
轉(zhuǎn)速表是機(jī)械行業(yè)必備的儀器之一，用來測定電機(jī)的轉(zhuǎn)速、線速度或頻率。 1.3安裝要求熔斷器應(yīng)該垂直安裝，防止電弧飛落在臨近帶電部分熔斷器與固定觸頭應(yīng)成直線，無傾斜地跌落式熔斷器，其熔管軸線應(yīng)與鉛垂線成15~30°，其轉(zhuǎn)動部分靈活，跌落時不應(yīng)碰及其他物體熔絲的規(guī)格應(yīng)符合設(shè)計要求?！ ±?對于一臺10kW、380V的電動機(jī),額定電流19.9A,可使用XX20-25型熱繼電器,熱元件整定電流為17～21～25A,先按一般情況整定在21A,若發(fā)現(xiàn)經(jīng)常提前動作,而電動機(jī)溫升不高,可改整定電流25A繼續(xù)觀察;若在21A時,電動機(jī)溫升高,而熱繼電器滯后動作,則可改在17A進(jìn)行觀察,以得到的配合。
