可靠的壓力表KONICS/KINS,SS-3075 標準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
BCS-1000S BCS-1100S BCS-1200S BCS-1300S BCS-1400S BCS-1500S
BCS-2000S BCS-2100S BCS-2200S BCS-2300S BCS-2400S BCS-2500S
BCS-3000S BCS-3100S BCS-3200S BCS-3300S BCS-3400S BCS-3500S
BCS-1010S BCS-1110S BCS-1210S BCS-1310S BCS-1410S BCS-1510S
BCS-2010S BCS-2110S BCS-2210S BCS-2310S BCS-2410S BCS-2510S
BCS-3010S BCS-3110S BCS-3210S BCS-3310S BCS-3410S BCS-3510S
BCS-1020S BCS-1120S BCS-1220S BCS-1320S BCS-1420S BCS-1520S
BCS-2020S BCS-2120S BCS-2220S BCS-2320S BCS-2420S BCS-2520S
BCS-3020S BCS-3120S BCS-3220S BCS-3320S BCS-3420S BCS-3520S
BCS-1001S BCS-1101S BCS-1201S BCS-1301S BCS-1401S BCS-1501S
磁化強度矢量:為了表征物質(zhì)的宏觀磁性或介質(zhì)的磁化程度,定義磁化強度矢量M:式中mi代表小體積元△V內(nèi)第i個分子的磁矩,求和遍及△V內(nèi)所有分子。單位:安培/米(A/m)。磁化強度矢量M與描述電介質(zhì)的極化強度P相當:(1)無外磁場時,對于抗磁質(zhì),每個分子磁矩為零;對于順磁質(zhì)雖然每個分子磁矩不為零,當因其無規(guī)的取向,△V內(nèi)所有的分子磁矩的矢量和仍為零?! ∮醒芯勘砻鳎嘿|(zhì)量分數(shù)越大,有機硅封裝材料的折射率越高,同時還使材料的收縮率降低、耐冷熱循環(huán)沖擊性能,質(zhì)量分數(shù)為40%時硅材料的折射率為1.51,含量為50%時折射率1.54,全時折射率達1.57;然而??! 〉谑褂弥杏捎跍囟葍x表波動大,尤其控溫精度越高其波動越大,致使中間繼電器動作,由于繼電器的電觸點在接通的瞬間,觸點上將有數(shù)倍于正常工作電流的沖擊,而在斷開瞬間,電路中儲存的電磁能將以火花的形式在觸點間釋放。
BCS-2001S BCS-2101S BCS-2201S BCS-2301S BCS-2401S BCS-2501S
BCS-3001S BCS-3101S BCS-3201S BCS-3301S BCS-3401S BCS-3501S
BCS-1011S BCS-1111S BCS-1211S BCS-1311S BCS-1411S BCS-1511S
BCS-2011S BCS-2111S BCS-2211S BCS-2311S BCS-2411S BCS-2511S
BCS-3011S BCS-3110S BCS-3211S BCS-3311S BCS-3411S BCS-3511S
BCS-1021S BCS-1121S BCS-1221S BCS-1321S BCS-1421S BCS-1521S
BCS-2021S BCS-2121S BCS-2221S BCS-2321S BCS-2421S BCS-2521S
BCS-3021S BCS-3121S BCS-3221S BCS-3321S BCS-3421S BCS-3521S
經(jīng)過調(diào)查發(fā)現(xiàn)由于有一臺電動機漏電,恰好工廠地線生銹斷開。強電經(jīng)過變頻器地線反串如變頻器主板。所以變頻器有單獨接地點,不要和電動機公用接地線。在TN-S系統(tǒng)中,電動機等電氣設備的金屬外殼,就應該接地線,即PE線。
BCS-1002S BCS-1102S BCS-1202S BCS-1302S BCS-1402S BCS-1502S
BCS-2002S BCS-2102S BCS-2202S BCS-2302S BCS-2402S BCS-2502S
BCS-3002S BCS-3102S BCS-3202S BCS-3302S BCS-3402S BCS-3502S
BCS-1012S BCS-1112S BCS-1212S BCS-1312S BCS-1412S BCS-1512S
BCS-2012S BCS-2112S BCS-2212S BCS-2312S BCS-2412S BCS-2512S
BCS-3012S BCS-3110S BCS-3212S BCS-3312S BCS-3412S BCS-3512S
BCS-1022S BCS-1122S BCS-1222S BCS-1322S BCS-1422S BCS-1522S
BCS-2022S BCS-2122S BCS-2222S BCS-2322S BCS-2422S BCS-2522S
BCS-3022S BCS-3122S BCS-3222S BCS-3322S BCS-3422S BCS-3522S
BCS-1003S BCS-1103S BCS-1203S BCS-1303S BCS-1403S BCS-1503S
BCS-2003S BCS-2103S BCS-2203S BCS-2303S BCS-2403S BCS-2503S
BCS-3003S BCS-3103S BCS-3203S BCS-3303S BCS-3403S BCS-3503S
完全星形接線兩相兩繼電器不完全星形接線3、兩相差接反映兩相差電流。該接線方式應用在6~10kV中性點不接地的小電流接地系統(tǒng)中,保護線路的三相短路、兩相短路、小容量電動機保護、小容量變壓器保護。4、單相接線在三相電流平衡時,可以用單相電流反映三相電流值,主要用于測量回路。
BCS-1013S BCS-1113S BCS-1213S BCS-1313S BCS-1413S BCS-1513S
BCS-2013S BCS-2113S BCS-2213S BCS-2313S BCS-2413S BCS-2513S
BCS-3013S BCS-3110S BCS-3213S BCS-3313S BCS-3413S BCS-3513S
BCS-1023S BCS-1123S BCS-1223S BCS-1323S BCS-1423S BCS-1523S
類似的,視在功率表示為:(8)由有功功率計算公式(7)和視在功率計算公式(8)可得適用非正弦電路的下述功率因數(shù)計算公式:(9)盡管非正弦電路中,cosφ已經(jīng)不再等于功率因數(shù),然而,由于長期以來人們習慣了用cosφ作為功率因數(shù)符 。
BCS-2023S BCS-2123S BCS-2223S BCS-2323S BCS-2423S BCS-2523S
BCS-3023S BCS-3123S BCS-3223S BCS-3323S BCS-3423S BCS-3523S
BCS-1004S BCS-1104S BCS-1204S BCS-1304S BCS-1404S BCS-1504S
BCS-2004S BCS-2104S BCS-2204S BCS-2304S BCS-2404S BCS-2504S
BCS-3004S BCS-3104S BCS-3204S BCS-3304S BCS-3404S BCS-3504S
BCS-1014S BCS-1114S BCS-1214S BCS-1314S BCS-1414S BCS-1514S
BCS-2014S BCS-2114S BCS-2214S BCS-2314S BCS-2414S BCS-2514S
BCS-3014S BCS-3110S BCS-3214S BCS-3314S BCS-3414S BCS-3514S
BCS-1024S BCS-1124S BCS-1224S BCS-1324S BCS-1424S BCS-1524S
BCS-2024S BCS-2124S BCS-2224S BCS-2324S BCS-2424S BCS-2524S
BCS-3024S BCS-3124S BCS-3224S BCS-3324S BCS-3424S BCS-3524S
隔離開關是不是多余的。答:隔離開關不是多余的,按規(guī)范,在線路停電、檢修時,線路上電源與負載必須要有明顯的斷點,而隔離開關就行使這個功能。它只能在無負荷或極輕負荷狀態(tài)下分、合電源。隔離開關一般裝置在線路前端,斷路器裝置在隔離開關后,以便操作和檢修?! 〗酉聛硎禽喌降?1槽和第12槽,這二線圈是第3和第4個線圈,因第11和第12槽均處于右邊線圈。按逢右下,這時應將它嵌下槽內(nèi)?,F(xiàn)回頭看,在這第3和第4,二線圈有第7槽、第8槽、第9槽、第10槽一共4槽。只有第7槽和第8槽是右邊的線圈,而第9槽和第10槽是左邊的。