產(chǎn)品詳情
可靠的壓力表KONICS/KINS,KN-2040 配送及時(shí)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(guó)DONGYANG F&C 氫氧化鈉自動(dòng)閥
等等,若需了解詳細(xì)的資料,歡迎留言公司網(wǎng)站或來電垂詢??!
DONGYANG F&C 氫氧化鈉自動(dòng)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
斷路器在線路中起隔離作用,也就是起通短電流作用,選隔離開關(guān)時(shí)候只要是考慮線路故障時(shí)候?qū)?dǎo)體產(chǎn)生的熱效應(yīng)來進(jìn)行校驗(yàn),也就是說隔離開關(guān)的選用是根據(jù)導(dǎo)體中的計(jì)算電流和載流量來定的,一般的是在這兩個(gè)值之間,但是考慮?。 而發(fā)電機(jī)、電動(dòng)機(jī)等一、二次繞組中都有“減效應(yīng)”的問題,如電流互感器的“減極性”、發(fā)電機(jī)電樞(定子)繞組的“去(削)磁”反應(yīng)、發(fā)電機(jī)定子和轉(zhuǎn)子的“同步”、發(fā)電機(jī)的進(jìn)相問題等等,熟悉電氣設(shè)備“減”(或削弱)的感念,對(duì)于更深入的熟悉和了解設(shè)備,很重要。
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
磁場(chǎng)中某點(diǎn)的磁感應(yīng)強(qiáng)度是一個(gè)矢量,其大小等于單位試探電荷以單位速率垂直零力線方向運(yùn)動(dòng)時(shí)在該點(diǎn)所受力的大小,其方向滿足v×B指向F的方向。其數(shù)學(xué)表示式為B=F/qV單位:特斯拉(T),1T=1×104G高斯二、磁感應(yīng)線(磁力線)磁感應(yīng)線:形象描述磁感應(yīng)強(qiáng)度空間分布的曲線;實(shí)際上并不存在?! ? 對(duì)用戶深入了解鎧裝熱電偶測(cè)溫和應(yīng)用大有幫助,也可以作為技術(shù)培訓(xùn)的資料,鎧裝熱電偶電纜的型,代及分度可參閱"鎧裝熱電偶選型",鎧裝熱電偶電纜結(jié)構(gòu)尺寸如圖1所示,它的外徑(D)及公差,保護(hù)管名義壁厚(S)和偶絲名義直徑(C)以及絕緣層厚度(t)應(yīng)符合表1規(guī)定。
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
?。?)在修理負(fù)荷開關(guān)時(shí),要注意保持手柄與門的連鎖,不可輕易拆除。低壓隔離開關(guān)的運(yùn)行檢查項(xiàng)目:(8)檢查負(fù)荷電流是否超過隔離開關(guān)的額定值。(9)檢查觸頭和隔離開關(guān)連接處有無過熱現(xiàn)象。(10)檢查絕緣連桿、底座有無損壞和放電現(xiàn)象?! ?923年1月,Siemens Halske的Schottky和Gerlach申請(qǐng)了第一個(gè)帶式揚(yáng)聲器專利。它將一個(gè)水平波浪型純鋁簿膜安裝在磁體兩極之間,波浪形純鋁膜可以降低縱向硬度,降低了諧振頻率。1931年,Olson 和Massa 生產(chǎn)了帶式麥克風(fēng)。
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
家庭供電要一般出現(xiàn)斷路器跳閘,要判斷是電器、線路短路、漏電,還是開關(guān)本身絕緣老化造成的誤動(dòng)作,的辦法是用斷開法,縮小故障范圍,找到故障點(diǎn),也可以有電流表檢測(cè)用電器工作電流,判斷斷路器的標(biāo)稱值是否還能達(dá)標(biāo)。 于是問題轉(zhuǎn)化為:可以接出兩種角接的接法,這兩種角接轉(zhuǎn)向一致。有認(rèn)真的用電機(jī)親自接了兩種角接試驗(yàn)轉(zhuǎn)向,結(jié)果轉(zhuǎn)向一致。看下圖,這樣接星接、角接轉(zhuǎn)向一致。至此問題好像解決了,但我又進(jìn)一步想了一個(gè)問題:我們只是驗(yàn)證了分別這兩種接法的轉(zhuǎn)向相同,但實(shí)踐中究竟可不可以呢。
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
例如負(fù)載為感性時(shí),所選額定輸出電壓必須大于兩倍電源電壓值,而且所選產(chǎn)品的阻斷(擊穿)電壓應(yīng)高于負(fù)載電源電壓峰值的兩倍。一般生產(chǎn)廠家都提供熱降額曲線。如周圍溫度上升,應(yīng)按曲線作降額使用。浪涌電流是指在給定條件下(室溫、額定電壓、額定電流和的時(shí)間等)不會(huì)造成永久性損壞所允許的非重復(fù)性峰值電流。
其中5N(C65N)斷路器具有體積小,分?jǐn)嗄芰Ω摺⑾蘖餍阅芎?、操作輕便,型 規(guī)格齊全、可以方便地在單極結(jié)構(gòu)基礎(chǔ)上組合成二極、三極、四極斷路器的優(yōu)點(diǎn),廣泛使用在60A及以下的民用照明支干線及支路中(多用于住宅用戶的進(jìn)線開關(guān)及商場(chǎng)照明支路開關(guān))?! p速器軸承損壞,與電機(jī)軸承故障相似,也會(huì)在軸承附近發(fā)出異常響聲。為了防止故障擴(kuò)大,無論減速器齒輪過度磨損或損壞,還是減速器軸承損壞,都需要立即拆卸檢修或更換,消除故障,降低噪聲。但工作中應(yīng)注意,起升重物時(shí),禁止、檢查和維修制動(dòng)器。