如何選擇Kyongbo產品CT互感器:3SL1,2SL1,3SL2,信息時效性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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LCD-1000S LCD-1100S LCD-1200S LCD-1300S LCD-1400S LCD-1500S
LCD-2000S LCD-2100S LCD-2200S LCD-2300S LCD-2400S LCD-2500S
LCD-3000S LCD-3100S LCD-3200S LCD-3300S LCD-3400S LCD-3500S
LCD-1010S LCD-1110S LCD-1210S LCD-1310S LCD-1410S LCD-1510S
LCD-2010S LCD-2110S LCD-2210S LCD-2310S LCD-2410S LCD-2510S
LCD-3010S LCD-3110S LCD-3210S LCD-3310S LCD-3410S LCD-3510S
LCD-1020S LCD-1120S LCD-1220S LCD-1320S LCD-1420S LCD-1520S
LCD-2020S LCD-2120S LCD-2220S LCD-2320S LCD-2420S LCD-2520S
LCD-3020S LCD-3120S LCD-3220S LCD-3320S LCD-3420S LCD-3520S
LCD-1001S LCD-1101S LCD-1201S LCD-1301S LCD-1401S LCD-1501S
LCD-2001S LCD-2101S LCD-2201S LCD-2301S LCD-2401S LCD-2501S
LCD-3001S LCD-3101S LCD-3201S LCD-3301S LCD-3401S LCD-3501S
LCD-1011S LCD-1111S LCD-1211S LCD-1311S LCD-1411S LCD-1511S
LCD-2011S LCD-2111S LCD-2211S LCD-2311S LCD-2411S LCD-2511S
LCD-3011S LCD-3110S LCD-3211S LCD-3311S LCD-3411S LCD-3511S
LCD-1021S LCD-1121S LCD-1221S LCD-1321S LCD-1421S LCD-1521S
LCD-2021S LCD-2121S LCD-2221S LCD-2321S LCD-2421S LCD-2521S
LCD-3021S LCD-3121S LCD-3221S LCD-3321S LCD-3421S LCD-3521S
LCD-1002S LCD-1102S LCD-1202S LCD-1302S LCD-1402S LCD-1502S
LCD-2002S LCD-2102S LCD-2202S LCD-2302S LCD-2402S LCD-2502S
LCD-3002S LCD-3102S LCD-3202S LCD-3302S LCD-3402S LCD-3502S
如何選擇Kyongbo產品CT互感器:3SL1,2SL1,3SL2,信息時效性 同樣一個表,對于400A/5A的線路中,只需要將儀表的CT變比"T.I"修改為80就可以了。在一般情況下,儀表后面的標簽中都表注了儀表的類型參數和出廠設置參數。在正確的配置儀表后,按照實際的要求對儀表進行正確的接線,對輔助電源、輸入信號和輸出信號按說明書操作說明中進行。 其間有一個與前后接點都斷開的狀態:另一種是MBB(MakeBeforeBreak)接點型,其特點是在換位時動接點有一個與前后接點都的狀態,和增量編碼器產品相似有兩個正交輸出信(通道A和通道B),可以直接和編碼器處理芯片相連接。
(下文所有固態繼電器均用SSR來表示)作為無機械觸點的開關功能元件,SSR的基本使用框圖如下:SSR的輸入控制方法和電路SSR的類型,型 很多,所以它的輸入控制方法和控制電路也相應較多。SSR之間的共同特點是驅動電流或驅動電壓很小,輸入一個很小的信 就可以時間對SSR輸出狀態通,斷的控制。
圖2兩個單相電壓互感器V/V接線(3)三個單相電壓互感器Y0/Y0接線三個單相電壓互感器Y0/Y0形如圖3所示。供電給要求線電壓的儀表、繼電器,并供給接相電壓的絕緣電壓表。圖3三個單相電壓互感器Y0/Y0接線(4)三個單相三繞組電壓互感器或一個三相五心柱三繞組電壓互感器Y0/Y0/△(開口三角)接線接線如圖4所示。
LCD-1012S LCD-1112S LCD-1212S LCD-1312S LCD-1412S LCD-1512S
LCD-2012S LCD-2112S LCD-2212S LCD-2312S LCD-2412S LCD-2512S
LCD-3012S LCD-3110S LCD-3212S LCD-3312S LCD-3412S LCD-3512S
LCD-1022S LCD-1122S LCD-1222S LCD-1322S LCD-1422S LCD-1522S
LCD-2022S LCD-2122S LCD-2222S LCD-2322S LCD-2422S LCD-2522S
LCD-3022S LCD-3122S LCD-3222S LCD-3322S LCD-3422S LCD-3522S
LCD-1003S LCD-1103S LCD-1203S LCD-1303S LCD-1403S LCD-1503S
LCD-2003S LCD-2103S LCD-2203S LCD-2303S LCD-2403S LCD-2503S
LCD-3003S LCD-3103S LCD-3203S LCD-3303S LCD-3403S LCD-3503S
LCD-1013S LCD-1113S LCD-1213S LCD-1313S LCD-1413S LCD-1513S
LCD-2013S LCD-2113S LCD-2213S LCD-2313S LCD-2413S LCD-2513S
如何選擇Kyongbo產品CT互感器:3SL1,2SL1,3SL2,信息時效性 /Y。/△(開口三角形)接線這種接線方式在10kV中性點不接地系統中應用廣泛,它既能測量線電壓、相電壓并能組成絕緣監察裝置和供單相接地保護用。接成Y。形的二次繞組稱為基本二次繞組,用來接儀表、繼電器及絕緣監察電壓表;接成(開口三角形)的二次繞組,稱為輔助二次繞組,用來連接監察絕緣用的電壓繼電器。 由上是表明,變壓器原、副邊繞組的電壓比等于原、副繞組的匝數比,因此如果要原、副邊繞組有不同的電壓,只要改變他們的匝數即可。當N1>N2時,K>1,變壓器降壓;當N1<N2時,K<1,變壓器升壓。對于已經支撐的變壓器而言,其K為定值,故副邊電壓和原邊電壓成正比,也就是說副邊電壓隨著原邊電壓的升高而升高,降低而降低。
那么,1P+N的又表示什么呢。這個也很好理解,N表示零線,所以當電路發生短路時,1P的只能控制一個線路的通斷,2P的就可以同時斷開火線和零線,而1P+N的卻不能斷開。那么斷路器到底該如何接線呢。老特意用1P和2P斷路器做了一個說明。
還有比如這個CJX2-9511,“95”是額定電流,“11”代表1組常開輔助觸點,1組常閉輔助觸點。那就有朋友說了,好了,知道了,按這個方法套就可以了。其實是不對的,因為并不是所以器都這么表示的。比如這兩個,“3TF50”“3TB42”“50”和“42”并不是50A和42A的意思。 電流互感器是一種特殊的變壓器,它的作用是把大電流變成標準小電流,配合測量儀表、計量儀表和繼電器等設備工作。這樣可以起到擴大儀表測量范圍,電路的可靠性和性的作用。電流互感器的接線原理圖如下圖所示,電流互感器的一次線圈串聯在一次主電路中,其二次接入的儀表和繼電器的線圈也全部是串聯的。
LCD-3013S LCD-3110S LCD-3213S LCD-3313S LCD-3413S LCD-3513S
LCD-1023S LCD-1123S LCD-1223S LCD-1323S LCD-1423S LCD-1523S
LCD-2023S LCD-2123S LCD-2223S LCD-2323S LCD-2423S LCD-2523S
LCD-3023S LCD-3123S LCD-3223S LCD-3323S LCD-3423S LCD-3523S
LCD-1004S LCD-1104S LCD-1204S LCD-1304S LCD-1404S LCD-1504S
LCD-2004S LCD-2104S LCD-2204S LCD-2304S LCD-2404S LCD-2504S
LCD-3004S LCD-3104S LCD-3204S LCD-3304S LCD-3404S LCD-3504S
LCD-1014S LCD-1114S LCD-1214S LCD-1314S LCD-1414S LCD-1514S
LCD-2014S LCD-2114S LCD-2214S LCD-2314S LCD-2414S LCD-2514S
LCD-3014S LCD-3110S LCD-3214S LCD-3314S LCD-3414S LCD-3514S
LCD-1024S LCD-1124S LCD-1224S LCD-1324S LCD-1424S LCD-1524S
LCD-2024S LCD-2124S LCD-2224S LCD-2324S LCD-2424S LCD-2524S
LCD-3024S LCD-3124S LCD-3224S LCD-3324S LCD-3424S LCD-3524S

就可以加入一臺帶有多個常開觸點的中間繼電器,利用器的其中一組常開觸點控制中間繼電器線圈,當器得電吸合,常開觸點閉合,中間繼電器也就跟著吸合,然后再利用中間繼電器的常開觸點充當器輔助觸點。這就是增加了觸點數量。 當用電負荷的外露導電部分發生單相接地故障時,由于它的外殼與PE相連,因此故障電流的路徑是:斷路器相線回路→用電負荷的外露導電部分→PE線,因此,斷路器必定會執行保護操作。再看右圖:圖中的接線方向是反的,也即從斷路器的N線端子引入相線。