韓國(guó)AUTOMA,AS50-20F-S/V-A/S-S/C 商品編號(hào)中山立訊電氣有限公司銷售韓國(guó)IOVIS光源
FT-BB-250-190-R-12V
FT-BB-165-83-R-12V
FT-BB-300-150-R-12V
FT-BB-100-80-R-12V
FT-BT-70-35-W-12V
FT-BT-60-54-IR-12V
FT-RP-60-32-W-12V
IO-BT-100-50-W-12V
FT-BT-180-30-W-12V
FT-BB-200-85-R-12V
FT-BB-300-150-10t-R-12V
FT-BB-165-83-8.5t-R-12V
FT-BB-100-80-10t-R-12V
FT-BT-122-30-22t-W-12V
IO-BB-165-68-10t-R-12V
FT-BB-200-60-10t-R-12V 韓國(guó)AUTOMA,AS50-20F-S/V-A/S-S/C 商品編號(hào)
IO-BT-100-50-W-12V
FT-BT-180-30-W-12V
FT-BB-94-55-W-12V
FT-BB-250-190-10t-R-12V
FT-BT-180-30-22t-R-12V
FT-BB-200-85-10t-R-12V
FT-BT-100-50-22t-W-12V
FT-BT-94-55-22t-W-12V
FT-BT-07-35-22T-W-12V
IO-BT-100-50-W-12V
FT-BB-100-80-R-12V
vieworks工業(yè)相機(jī)
acA1920-50gm
acA1920-50gc
acA2040-35gm
acA2040-35gc
acA2440-20gm
acA2440-20gc
acA2500-20gm
acA2500-20gc
acA3088-16gm
acA3088-16gc
acA3088-57um
acA3088-57uc
acA4024-29um
acA4024-29uc
acA4024-8gm
acA4024-8gc
acA4096-40um
acA4096-40uc
acA4096-11gm韓國(guó)AUTOMA,AS50-20F-S/V-A/S-S/C 商品編號(hào) 使電動(dòng)機(jī)繞組,絕緣老化,從而縮短了電動(dòng)機(jī)的使用壽命。特別是對(duì)經(jīng)常需要啟動(dòng)的電動(dòng)機(jī)影響較大。啟動(dòng)瞬間,由于電動(dòng)機(jī)轉(zhuǎn)子電路功率因素較低,啟動(dòng)轉(zhuǎn)矩并不很大。如果啟動(dòng)轉(zhuǎn)矩小于負(fù)載轉(zhuǎn)矩則電動(dòng)機(jī)將無(wú)法啟動(dòng)。綜上所述,異步電動(dòng)機(jī)啟動(dòng)時(shí)的主要缺點(diǎn)是啟動(dòng)電流較大。
acA4096-11gc
acA4096-30um
acA4096-30uc
acA4112-20um
acA4112-20uc
acA4112-30um
acA4112-30uc
acA4112-8gm
acA4112-8gc
tof640-20gm
tof640-850nm
acA3800-10gm
acA3800-10gc
acA640-300gm
acA640-300gc
acA800-200gm
acA800-200gc
acA1300-75gm
acA1300-75gc
acA2000-50gm
acA2000-50gc
acA2000-50gm
acA2000-50NIR
acA2040-25gm
acA2040-25gc
acA2040-25gm
acA2040-25NIR
acA2500-14gm
acA2500-14gc
acA1300-30gm
acA1300-30gc
acA1300-60gm
acA1300-60gc
acA1300-60gm 韓國(guó)AUTOMA,AS50-20F-S/V-A/S-S/C 商品編號(hào) 不同回路間的N線不得多點(diǎn)相連或重復(fù)接地,否則會(huì)造成誤動(dòng)作,在系統(tǒng)試運(yùn)行時(shí)出現(xiàn)漏電流值過(guò)大而出現(xiàn),很大一部分均是由此類情況造成。如果PE線同N線及相線一起穿過(guò)互感器,也會(huì)造成探測(cè)器的拒動(dòng)作或誤動(dòng)作。也并非所有的剩余電流監(jiān)測(cè)都需要將相線穿入互感器內(nèi),TN-S系統(tǒng)的總剩余電流監(jiān)測(cè)方法就可排除在外,它可只穿一根電纜線通過(guò)剩余電流互感器。
acA1300-60NIR
acA1300-75gm
acA1300-75gc
acA1600-20gm
acA1600-20gc
acA1300-75gm
acA1300-75NIR
acA1600-60gm
acA1600-60gc
acA1280-60gm
acA1280-60gc
acA1300-22gm
acA1300-22gc
acA1920-25gm
acA1920-25gc
acA1920-40gm
acA1920-40gc
acA640-120gm
acA640-120gc
acA1920-48gm
acA1920-48gc
acA640-90gm
acA640-90gc
acA645-100gm
acA645-100gc
acA640-300gm
acA750-30gm
acA750-30gc
acA780-75gm
acA780-75gc
acA800-200gm
acA800-200gc
avA1000-100gm
avA1000-100gc
avA1600-50gm
avA1600-50gc
avA1900-50gm
avA1900-50gc
avA2300-25gm
avA2300-25gc
piA1000-48gm
piA1000-48gc
piA1000-60gm
piA1000-60gc
piA1600-35gm
piA1600-35gc
piA1900-32gm
piA1900-32gc
piA2400-17gm
piA2400-17gc
piA640-210gm
piA640-210gc
scA640-70gm
scA640-70gc
scA640-74gm
scA640-74gc
scA640-120gm
scA640-120gc
scA750-60gm
scA750-60gc
scA780-54gm
scA780-54gc
scA1300-32gm
scA1300-32gc
scA1390-17gm韓國(guó)AUTOMA,AS50-20F-S/V-A/S-S/C 商品編號(hào) 1820年奧斯特發(fā)現(xiàn)電流的磁效應(yīng)以后,人們很自然地想到:既然電流能產(chǎn)生磁場(chǎng),磁場(chǎng)能否產(chǎn)生電流呢許多科學(xué)家開始不懈地探索。1831年,法拉第終于發(fā)現(xiàn)了由磁場(chǎng)產(chǎn)生電流的條件和規(guī)律,即電磁感應(yīng)現(xiàn)象。如下圖所示,在勻強(qiáng)磁場(chǎng)中放置一根導(dǎo)體AB,導(dǎo)體AB的兩端分別與靈敏電流計(jì)的接線柱連接形成閉合回路。
scA1390-17gc
scA1400-17gm
scA1400-17gc
scA1400-30gm
scA1400-30gc
scA1600-14gm
scA1600-14gc
scA1600-28gm
scA1600-28gc
acA1920-50gm
acA1920-50gc
acA2040-35gm
acA2040-35gc
acA2440-20gm
acA2440-20gc
acA4600-7gc
VT-23K3.5X-H100
VT-16K5X-H140
VT-18K3.5X-H140
VT-18K3.5X-H80
VT-12K5X-H200
VT-12K5X-H100
VT-9K7X-H250
VT-9K7X-H120
VT-6K10X-H170
VT-6K3.5X-H160
VT-6K3.5X-E160
VT-4K5X-H200
VT-4K5X-E200
VT-3K7X-H250
VT-3K7X-E250
VT-18K3.5C-H40
VT-12K5C-H60
VT-9K7C-H80
VT-4K14C-H120
VT-4K7C-H120
VT-6K3.5C-H100
VT-6K3.5C-E100
VT-4K5C-H100
VT-4K5C-E100
M42 (C or F-mount)
M42 (C or F-mount)
VC-25MX-M/Cs
VC-12MX2-M/C
VC-12MX-M/C
VC-4MX-M/C
VC-2MC-M/C
VC-2MC-M/C
VC-3MC-M/C
VC-4MC-M/C
VC-4MC-M/C
VC-12MC-M/C
VC-25MC-M/C
VC-71MC-M/C
這兩個(gè)術(shù)語(yǔ)用于延時(shí)繼電器,兩者區(qū)別如下:1、通電延時(shí)就是線圈通電后,常開和常閉觸點(diǎn)延時(shí)后才動(dòng)作,線圈斷電后立即復(fù)位;2、斷電延時(shí)就是線圈通電后,常開和常閉觸點(diǎn)立即動(dòng)作,線圈斷電后延時(shí)工作。通電延時(shí)時(shí)間繼電器的觸點(diǎn),在繼電器通電后,延時(shí)時(shí)間到達(dá)設(shè)定的時(shí)間觸點(diǎn)動(dòng)作?! ∷吐╇姳Wo(hù)器的用法和外貌都類似,因此很多人都以為它是漏電裝置。由于欠壓跳閘時(shí)欠壓脫扣器會(huì)有兩種變化,一種是欠壓脫扣器的復(fù)位按鈕會(huì)突出來(lái),不能直接合閘,需要按下按鈕才能正常合閘。另一種是上圖中右側(cè)藍(lán)色的方塊復(fù)位按鈕的位置是一個(gè)顯示屏,正常使用時(shí)屏幕是綠色,跳閘后屏幕變成紅色,跳閘后可以直接合閘,合閘后屏幕恢復(fù)綠色。