AONE/A-ONE AUTOVALVE,AD50-25F 25A 1″報價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
答：電流互感器一次側也標有P1、P2或L1、L2字樣，一次側從P1或L1流入電流互感器的一次電流與二次側電流互感器S1端子流出的電流相位是一致的，在接用有方向性的儀表如：電度表、功率表等時，要注意接線的的極性，如果接只用電流表，極性反正都不影響電流表的指示。 電位移矢量D與有介質時的高斯定理介電常數高斯定理是建立在庫侖定律的基礎上的，在有電介質存在時，它也成立，只不過計算總電場的電通量時，應計及高斯面內所包含的自由電荷q0和極化電荷q'：（1）前面我們推導過下列公。
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
:通俗點說，交流器里面相當于有兩塊電磁鐵，給它的線圈通電，兩塊磁鐵就會吸合在一起，它的作用都是通過這簡單的原理實現的。舉個簡單的例子，啟停開關和線圈串聯在一個低壓線路中，主觸點與電機電源線串聯，主觸點一般是常開的，按啟動按鈕，線圈通電后，主觸點閉合，電機通電，按停止按鈕，線圈斷電，主觸點分開，電機斷電。
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
造成異步電動機空載電流過大的原因有如下幾種：①、電源電壓太高：當電源電壓太高時，電機鐵芯會產生磁飽和現象，導致空載電流過大。②、電動機因修理后裝配不當或空隙過大。③、定子繞組匝數不夠或Ｙ型連接誤接成△形接線。 為保證計量的準確性，一般要求電流互感器的二次負荷S2必須在額定二次負荷S2N的25%~100%范圍內，即:0.25S2N≤S2≤S2N額定功率因數的確定額定功率因數的確定額定功率因數的確定額定功率因數的確定計量用電流互感器額定二次負荷的功率因數應為0.8~1.0。
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
無功功率計算公式無功功率=I*U*sinφ,單位為乏或千乏.有功功率計算公式有功功率P=IUCOSφ其實有功功率P、無功功率Q、視在功率S就是一直角三角形的三條變：S為斜邊，P、Q為兩直角變，P、Q就是把S正交分解出來的兩個分量；P^2+Q^2=S^2（勾股定理）。 為了認識微分作用，先來看看手動操作過程，假設有一工藝參數在變化，操作工發現這個參數上升較快，估計很快就會有比較大的偏差，這時，操作工就會多開大閥門來克服這個預期的偏差了這種估計及提前開大閥門的超前行為，就是微分動作。
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
這類電動機的二次繞組中大多串接有離心式啟動開關，正確接線時，啟動電容應和離心式開關串聯，再和運行電容進行并聯。單相雙電容電動機的正確接線方法如圖所示。當電動機啟動以后，一旦電動機的轉速達到額定轉速的80%左右時，離心開關的觸點就會斷開，從而切斷了啟動電容與電路的連接，此時電動機電流減小，電動機進入了正常的運行狀態。 3.保持滑動變阻器R1好的觸頭位置不變，閉合電鍵S2。4.電阻箱R2的阻值，使電流表G指針半偏。5.讀取R2的示數，該示數即為電流表G的內阻。上述實驗是有系統誤差的，這也是此實驗的必考點。誤差分析，在這篇半偏法及其誤差中有詳細的解釋。