廈門(mén)仲鑫航自動(dòng)化設(shè)備有限公司
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產(chǎn)品型號(hào)DS200SDCIG1AFB
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廠商性質(zhì)經(jīng)銷商
所 在 地廈門(mén)市
聯(lián)系方式:張芳查看聯(lián)系方式
更新時(shí)間:2018-05-14 09:00:00瀏覽次數(shù):221次
聯(lián)系我時(shí),請(qǐng)告知來(lái)自 儀表網(wǎng)GE DS200SDCIG1AFB
GE DS200SDCIG1AFB
GE DS200SDCIG1AFB
GE DS200SDCIG1AFB
主要考慮來(lái)自系統(tǒng)外部的幾種如果抑制措施。主要內(nèi)容包括:對(duì)DCS系統(tǒng)及外引線進(jìn)行屏蔽以防空間輻射電磁干擾;對(duì)外引線進(jìn)行隔離、濾波,特別是原理動(dòng)力電纜,分層布置,以防通過(guò)外引線引入傳導(dǎo)電磁干擾;正確設(shè)計(jì)接地點(diǎn)和接地裝置,*接地系統(tǒng)。另外還必須利用軟件手段,進(jìn)一步提高系統(tǒng)的安全可靠性。
在DCS控制系統(tǒng)中,電源占有極重要的地位。電網(wǎng)干擾串入DCS控制系統(tǒng)主要通過(guò)DCS系統(tǒng)的供電電源(如CPU電源、I/O電源等)、變送器供電電源和與DCS系統(tǒng)具有直接電氣連接的儀表供電電源等耦合進(jìn)入的。現(xiàn)在,對(duì)于DCS系統(tǒng)供電的電源,一般都采用隔離性能較好電源,而對(duì)于變送器供電的電源和DCS系統(tǒng)有直接電氣連接的儀表的供電電源,并沒(méi)受到足夠的重視,雖然采取了一定的隔離措施,但普遍還不夠,主要是使用的隔離變壓器分布參數(shù)大,抑制*力差,經(jīng)電源耦合而串入共模干擾、差模干擾。所以,對(duì)于變送器和共用信號(hào)儀表供電應(yīng)選擇分布電容孝抑制帶大(如采用多次隔離和屏蔽及漏感技術(shù))的配電器,以減少DCS系統(tǒng)的干擾。
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Tekel TK 661.H.500.5.S.6.L.LD (TK661H5005S6LLD)
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emecanique XMG-B140 (XMGB140)
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Visolux LU (LUVisolux)
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Inor 23198-2 (231982)
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Indramat NFD03.1-480-030 (NFD031480030)
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Shaffner FN350-30-33 (FN3503033)
Omron TJ1-PRT (TJ1PRT)
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Nordson Drehgeber WDG 58B-1500-AB-G24-2F (WDG58B1500ABG242FNordson)
Wachendorff Automation WDG 58B-1500-AB-G24-2F (WDG58B1500ABG242F)
Wachendorff Automation WDG 58A-2500-A-G24-K2 (WDG58A2500AG24K2)
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LeineLinde 632001211 (632001211)
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