韓國AUTOMA,ACV233R-32A經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
額定功率在規定的頻率和電壓下，變壓器能長期工作而不超過規定溫升的輸出功率。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，有空載電壓比和負載電壓比的區別�！ � 使觸頭間絕緣擊穿，產生真空電弧，由于觸頭形狀和結構的原因，使得真空電弧柱迅速向弧柱體外的真空區域擴散，當被分斷的電流接近零時，觸頭間電弧的溫度和壓力急劇下降，使電弧不能繼續維持而熄滅，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額定電流的60％-80％。3）考慮負載因素：如負載性質不允許停車、即便過載會使電動機壽命縮短，也不應讓電動機冒然脫扣，以免生產遭受比電動機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
當按下按鈕開關電路接通時，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，結果準確，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.鐵芯結構不同。交流器線圈通入的是交流電，會產生渦流，所以交流器鐵芯是由相互絕緣的硅鋼片疊裝而成�！ ≌讱W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(也叫保護環)，一般被測絕緣電阻都接在“L”和“E”端之間，但當被測絕緣體表面漏電嚴重時，必須將被測物的屏蔽環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
轉速表是機械行業必備的儀器之一，用來測定電機的轉速、線速度或頻率。 1.3安裝要求熔斷器應該垂直安裝，防止電弧飛落在臨近帶電部分熔斷器與固定觸頭應成直線，無傾斜地跌落式熔斷器，其熔管軸線應與鉛垂線成15~30°，其轉動部分靈活，跌落時不應碰及其他物體熔絲的規格應符合設計要求�！ ±�,對于一臺10kW、380V的電動機,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,若發現經常提前動作,而電動機溫升不高,可改整定電流25A繼續觀察;若在21A時,電動機溫升高,而熱繼電器滯后動作,則可改在17A進行觀察,以得到的配合。