產(chǎn)品詳情
韓國光星KTW-328A2S,KTW-328B1S,KTW-328B2S銷售電話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
電流互感器是一種特殊的變壓器,其一次側(cè)線圈匝數(shù)很少(低壓通常只有1匝),而二次側(cè)線圈匝數(shù)很多(比如一個1000/5的互感器,二次側(cè)線圈是一次側(cè)的200倍)。在二側(cè)開路時,二次側(cè)電壓會上升到一次側(cè)線圈壓降的很多倍(1000/5的互感器,就是200倍),從而影響二次回路的正常運行,并危及人身?! ∪缦聢D所示,空心線圈的兩端分別與靈敏電流計的接線柱連接形成閉合回路。當用條形磁鐵快速線圈時,電流計指針偏轉(zhuǎn),表明閉合回路有電流流過;當條形磁鐵靜止不動時,電流計指針不偏轉(zhuǎn),表明閉合回路沒有電流流過;當條形磁鐵快速拔出線圈時,電流計指針偏轉(zhuǎn),表明閉合回路有電流流過。
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
電工電線電纜載流量計算估算口訣二點五下乘以九,往上減一順 走。三十五乘三點五,雙雙成組減點五。條件有變加折算,高溫九折銅升級。穿管根數(shù)二三四,八七六折滿載流。說明:本節(jié)口訣對各種絕緣線(橡皮和塑料絕緣線)的載流量(電流)不是直接指出,而是“截面乘上一定的倍數(shù)”來表示,通過心算而得?! 〕四芡瓿珊头謹嚯娐吠猓心軐﹄娐坊螂姎庠O(shè)備發(fā)生的短路.嚴重過載及欠電壓等進行保護,同時也可以用于不地啟動電動機。如圖:空氣開關(guān)總跳閘有三種情況:一是負荷過大,可以換負荷大點的空開.二是線路哪里有問題,有線路接地了,或者線路碰頭了,這需要人士檢修了。
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
?。?)TN-C-S系統(tǒng)可以降低電動機外殼對地的電壓,然而又不能完全消除這個電壓,這個電壓的大小取決于負載不平衡的情況及線路的長度。要求負載不平衡電流不能太大,而且在PE線上應(yīng)作重復(fù)接地。(2)PE線在任何情況下都不能進入漏電保護器,因為線路末端的漏電保護器動作會使前級漏電保護器跳閘造成大范圍停電?! 〈艌鍪菍Ψ湃肫渲械拇朋w有磁力的作用的物質(zhì)叫做磁場,磁場的基本特征是能對其中的運動電荷施加作,即通電導(dǎo)體在磁場中受到...磁場的定義磁場是一種看不見、摸不著的特殊物質(zhì),磁場不是由原子或分子組成的,但磁場是客觀存在的。
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
變壓器兩組線圈圈數(shù)分別為N1和N2,N1為初級,N2為次級。在初級線圈上加一交流電壓,在次級線圈兩端就會產(chǎn)生感應(yīng)電動勢.當N2N1時,其感應(yīng)電動勢要比初級所加的電壓還要高,這種變壓器稱為升壓變壓器:當N2N1時,其感應(yīng)電動勢低于初級電壓,這種變壓器稱為降變壓器?! ∽钚∝撦d電流(單位:mA):固態(tài)繼電器執(zhí)行規(guī)定工作所必須的最小負載電流。它一般與最大負載電流一并作為“工作電流范圍”列出。最大負載電流(單位:A):在規(guī)定的環(huán)境溫度下,固態(tài)繼電器的最大穩(wěn)態(tài)負載電流能力,它還受散熱器和環(huán)境溫度條件的散熱限制。
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
:塑殼斷路器是常用的電氣原件,上的數(shù)字“3300”“3200”都代表什么意思呢。個數(shù)字代表極數(shù)。二極用2表示,三極用3表示,4極用四表示。第二個數(shù)字表示脫扣方式。“2”僅電磁(瞬時脫扣器),只有短路保護功能。“3”熱磁脫扣(復(fù)式脫扣器),有過載和短路保護功能。
1、類型代 是表征電機的各種類型而采用的漢語拼音字母。比如:異步電動機Y同步電動機T同步發(fā)電機TF直流電動機Z直流發(fā)電機ZF2、特點代 是表征電機的性能、結(jié)構(gòu)或用途,也采用漢語拼音字母表示。比如:隔爆型用B表示YB軸流通風機上用YT電磁制動式Y(jié)EJ變頻調(diào)速式Y(jié)VP變極多速式Y(jié)D起重機用YZD等。