韓國(guó)光星KTH-B2171S,KTH-B2172S,KTH-B2181S,價(jià)格美中山朗立電氣有限公司DAEHAN SENSOR CO.LTD(DHS)韓國(guó)大韓傳感器
DLF-S DLF-BS DLF-SL DLF-LB-1S DLF-103 DLF-303 DLF-503 DLF-1
DLF-2 DLF-3 DLF-4 DLF-4P-4S-GH DLF-4P-4S-FH DLF-4P-4S-G DE-5H
DLF-4P-4S-F DLF-4P-4T DLF-4P-4V DLF-4P-4N DLF-4P-4P DLF-4P-4S
表DI-65A DI-100A DI-100D DL-200D DLC-2M DEC-4U2WN DEC-5U-2WN
DFI-24V DFI-24VN DFIC-4D DFIC-4DN DFIC-4U DFIC-4P DFIC-4U-M
DPC-10 DFC-2U DFC-4U DFC-4U-2W DFC-4U-2WN DLC-4P DLC-4U-MC
DLF-4P-1S DLF-1P-1S DLF-4P-4S DLF-1P-1P DLF-4P-1P DLF-4P-4P
DLF-1P-1N DLF-4P-4N DLF-1P-1V DLF-4P-1V DLF-4P-4P DLF-1P-1T
DLF-4P-1T DLF-4P-4T DLF-4P-1S-F DLF-4P-4S-F DLF-1P-1S-G DE-5F
DLF-4P-4S-G DLF-1P-1S-FH DLF-4P-1S-FH DLF-4P-1S-GH DQ-4F DQ-4S
DFS-1B DFS-4B DFS-2S DFS-3S DFS-4S DU-03 DU-05 DU-08 DU-08-E DU
DU-08-B DPS-500 DPS-500L DRF-100S DRF-200F DRF-200S DC-103 DC-300
DC-100S DC-100F DC-300 DCAL-100S DVS-100 DVS-100-E DSP-100 DSP-200
韓國(guó)光星KTH-B2171S,KTH-B2172S,KTH-B2181S,價(jià)格美 :近有朋友向小編提問(wèn),說(shuō)自己家里一停電就跳閘,去詢問(wèn)物業(yè),物業(yè)維修工說(shuō)是因?yàn)榭臻_(kāi)靈敏度太高,很是苦惱。物業(yè)的這種說(shuō)法顯然是扯淡,普通空開(kāi)對(duì)電路只有過(guò)載保護(hù)的作用,所謂“靈敏度太高”的情況,只有可能是空開(kāi)選型太小,但也只會(huì)在正常使用的過(guò)程中跳閘,不可能停電才跳閘! ∩鲜鱿盗挟a(chǎn)品一般具有三對(duì)常開(kāi)主觸點(diǎn),常開(kāi)、常閉輔助觸點(diǎn)各兩對(duì)。直流器常用的有CZ0系列,分單極和雙極兩大類,常開(kāi)、常閉輔助觸點(diǎn)各不超過(guò)兩對(duì)。除以上常用系列外,近年來(lái)還引進(jìn)了一些生產(chǎn)線,生產(chǎn)了一些滿足IEC標(biāo)準(zhǔn)的交流器,下面作以簡(jiǎn)單介紹。
2.兩相V形接線該接線方式也稱為兩相不完全星形接線。在繼電保護(hù)裝置中稱為兩相兩繼電器接線。在中性點(diǎn)不接地的三相三線制電路中,廣泛用于測(cè)量三相電流、電能及作過(guò)電流繼電保護(hù)之用。兩V形接線的公共線上的電流反映的是未接電流互感器那一相的相電流。
DSP-300 DLG-100F-T-2S DMC-100S DMC-3S DH-100F DH-100S DH-200S
DGS-100A DGS-100 DGL-200 DGL-200L DT-200 DT-300 DT-400 DT-500
DT-600 DF-4P-4S DF-4P-4S-2W DF-4S DF-4S-2W DF-300 DF-300-2W DF-500
DF-500-2W DF-600 DF-600-2W DC-300-B DQS-4S DQS-4S-2W DQL-4F DQL-4F-2W
DQH-4F DQH-4F-2W DR-5H DE-5H-2W DE-5F DE-5F-2W DE-5S DR-5S-2W
DT-200 DT-300 DT-400 DT-500 DT-600 DF-4P DF-4S DF-300 DF-400
DGS-100 DGS-100A DGS-500 DGL-200 DGL-200L DPS-500 DPS-500L DC-100S
DRF-100S DRF-200F DMC-3S DMC-100S DFS-1S DFS-2S DH-100F DH-100S DH-200S
HL-100 HL-101 HL-400 DLT-1100 DP-100S DLF-1 DLF-S DLF-BS DLF-SL DLF-LB-1S
DLF-1P-1S DLF-4P-1S DLF-4P-4S DLF-4P-4P DLF-4P-1N DLF-4P-4N DLF-4P-1V
DLF-4P-4V DLF-4P-1S-F DLF-4P-4S-F DLF-4P-1S-G DLF-4P-4S-G DLF-4P-1S-FH
DLF-4P-4S-FH DLF-4P-1S-GH DLF-3P-1S-GH DLF-4P-4S-GH DLF-103 DLF-303
韓國(guó)光星KTH-B2171S,KTH-B2172S,KTH-B2181S,價(jià)格美 ).keke_ds{margin:10pxauto;display:block;cursor:pointer;width:134px;height:49px;background-image:url('source/plugin/keke_ds/tem 結(jié)構(gòu)編輯固態(tài)繼電器由三部分組成:輸入電路,隔離(耦合)和輸出電路。輸入電路按輸入電壓的不同類別,輸入電路可分為直流輸入電路,交流輸入電路和交直流輸入電路三種。有些輸入控制電路還具有與TTL/CMOS兼容,正負(fù)邏輯控制和反相等功能,可以方便的與TTL,MOS邏輯電路連接。
變頻功率分析儀可以作為工頻功率分析儀使用,除此之外,一般還需滿足下述要求:1、滿足必要的帶寬要求,并且采樣頻率應(yīng)高于儀器帶寬的兩倍。2、要求分析儀在較寬的頻率范圍之內(nèi),精度均能滿足一定的要求。3、具備傅里葉變換功能,可以分離信號(hào)的基波和諧波。
DLF-503A DFIC-4U DFIC-4P DFIC-4U-M DFIC-4D DFIC-4DN DFI-24VN DFI-24V
DPC-10 DPC-2U DPC-3U DPC-3U-2W DPC-4U DPC-4U-2W DPC-3U-2WN DLC-2M-AL
DLC-3U DLC-3U-2W DLC-4U DLC-4U-2W DLC-4U-MC DLC-4U-M-2W DLC-2M DLC-3M
DEC-4U-2WN DEC-5U-2WN DQC-3UN DQC-4U-M-2W DQC-4U-MC-2W DPS-6000 DPI-5000
DI-200D DI-100A DI-65A DI-100D轉(zhuǎn)換器DT-200R DI-65A DI-100A DI-100D DL-200D
DLF-S DLF-BS DLF-SL DLF-LB-1S DLF-103 DLF-303 DLF-503 DLF-1 DLC-4U-M-2W
DLF-2 DLF-3 DLF-4 DLF-4P-4S-GH DLF-4P-4S-FH DLF-4P-4S-G DC-300-B
DLF-4P-4S-F DLF-4P-4T DLF-4P-4V DLF-4P-4N DLF-4P-4P DLF-4P-4S
DFI-24V DFI-24VN DFIC-4D DFIC-4DN DFIC-4U DFIC-4P DFIC-4U-M
DPC-10 DFC-2U DFC-4U DFC-4U-2W DFC-4U-2WN DLC-4P DLC-4U-MC DLC-4U-M-2W
DLC-2M DLC-3M DEC-4U2WN DEC-5U-2WN DLF-503 DLC-4P DE-5S
DLF-4P-1S DLF-1P-1S DLF-4P-4S DLF-1P-1P DLF-4P-1P DLF-4P-4P
DLF-1P-1N DLF-4P-4N DLF-1P-1V DLF-4P-1V DLF-4P-4P DLF-1P-1T
韓國(guó)光星KTH-B2171S,KTH-B2172S,KTH-B2181S,價(jià)格美 在記錄聲音的科技方面,1917年,Wente 和Thuras設(shè)計(jì)了電容式麥克風(fēng)。到了20世紀(jì)30年代中期,根據(jù)電容式麥克風(fēng)原理,靜電揚(yáng)聲器面世。20世紀(jì)50年代初期,美國(guó)C. V. Bocciarelli 提出'constant charge'恒定電荷法則。P. Walker在同一時(shí)期獨(dú)立發(fā)展了相同理論,并將其應(yīng)用到著名的Quad靜電揚(yáng)聲器設(shè)計(jì)中! 。▽(shí)際中熱繼電器的額定電流可略大于電動(dòng)機(jī)的額定電流)2)考慮保護(hù)對(duì)象--電動(dòng)機(jī)的特性:電動(dòng)機(jī)的型 、規(guī)格和特性電動(dòng)機(jī)的絕緣材料等級(jí)有、E級(jí)、B級(jí)等,它們的允許溫升各不相同,因而其承受過(guò)載的能力也不相同。在選擇熱繼電器時(shí)是應(yīng)引起注意的。
與啟動(dòng)按鈕2并聯(lián)起自鎖作用的常開(kāi)輔助觸頭叫自鎖觸頭或(自保觸頭)。(2)停止:電動(dòng)機(jī)的停止動(dòng)作示意圖(器自鎖正轉(zhuǎn)控制線路)2.線路的保護(hù)設(shè)置(1)短路保護(hù)由熔斷器FU1、FU2分別實(shí)現(xiàn)主電路與控制電路的短路保護(hù)。
DLF-4P-1T DLF-4P-4T DLF-4P-1S-F DLF-4P-4S-F DLF-1P-1S-G
DLF-4P-4S-G DLF-1P-1S-FH DLF-4P-1S-FH DLF-4P-1S-GH
DFS-1B DFS-4B DFS-2S DFS-3S DFS-4S DU-03 DU-05 DU-08 DU-08-E DU
DU-08-B DPS-500 DPS-500L DRF-100S DRF-200F DRF-200S DC-103
DC-100S DC-100F DC-300 DCAL-100S DVS-100 DVS-100-E DSP-100 DSP-200
DSP-300 DLG-100F-T-2S DMC-100S DMC-3S DH-100F DH-100S DH-200S
DGS-100A DGS-100 DGL-200 DGL-200L DT-200 DT-300 DT-400 DT-500
DT-600 DF-4P-4S DF-4P-4S-2W DF-4S DF-4S-2W DF-300 DF-300-2W DF-500
DF-500-2W DF-600 DF-600-2W DC-300-B DQS-4S DQS-4S-2W DQL-4F DQL-4F-2W
DQH-4F DQH-4F-2W DR-5H DE-5H-2W DE-5F DE-5F-2W DE-5S DR-5S-2W
韓國(guó)光星KTH-B2171S,KTH-B2172S,KTH-B2181S,價(jià)格美 /5。就是你要選擇的數(shù)字,5是固定的,意思是把實(shí)際電流變?yōu)?A的電流。還有個(gè)簡(jiǎn)單的辦法,看你要裝的互感器的上端或者下端有么有空氣開(kāi)關(guān),如果有,看空氣開(kāi)關(guān)是多少A的,例如:空氣開(kāi)關(guān)為300A,那你就選擇300/5的互感器! (shí)際工作中,是不是使用肖特基二極管作為整流二極管是沒(méi)有關(guān)系的:二極管的低通態(tài)電壓只影響變壓器,不會(huì)影響電流互感器。如果互感器副邊的電感太小,測(cè)量誤差將會(huì)增大。也就是激磁電感太小,假設(shè)我們要求測(cè)量電流的誤差為1%,原邊電流為10A,那么副邊電流就是50mA,這就意味著要求激磁電流(副邊)應(yīng)該小于50mA×1%=500μA。
查找故障點(diǎn)及維修辦法。確認(rèn)了開(kāi)關(guān)確實(shí)是由于漏電跳閘之后,我們就要逐步排查故障點(diǎn)了。漏電保護(hù)器一般安裝在有插座的回路,而電燈回路和總開(kāi)關(guān)一般是不安裝漏電保護(hù)器的。如上圖,就是一個(gè)基本的家用配電箱。由斷路器數(shù)量可知,該戶共有6個(gè)回路,其中有4個(gè)是插座回路,2個(gè)是電燈回路。