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產(chǎn)品簡介
AS-S902-071
AS-S902-071
產(chǎn)品價格:¥1
上架日期:2019-09-11 12:39:36
產(chǎn)地:AS-S902-071
發(fā)貨地:福州
供應(yīng)數(shù)量:不限
最少起訂:1個
瀏覽量:167
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其他下載:暫無相關(guān)下載
詳細說明

    AS-S902-071現(xiàn)貨 in stock! 歡迎來電咨詢~!!

    AS-S902-071,

    AS-S902-071

    AS-S902-071


    作為火電廠安全經(jīng)濟運行主導(dǎo)因素的熱控自動化設(shè)備DCS系統(tǒng),近年來得到了普遍應(yīng)用,為火電廠機組安全、穩(wěn)定的運行起到了積極的作用。但是,DCS系統(tǒng)的安全性和可靠性還有待提高,在運行過程中經(jīng)常會出現(xiàn)這樣或那樣的故障,這些故障的出現(xiàn),導(dǎo)致了發(fā)電機組的非計劃停運,給發(fā)電企業(yè)造成不應(yīng)有的損失。
      1、DCS系統(tǒng)常見的故障
      隨著工業(yè)生產(chǎn)自動化的不斷興起、過程控制要求的日益復(fù)雜,一種綜合控制系統(tǒng)――DCS系統(tǒng)應(yīng)用而生了。由于目前各火電廠對DCS系統(tǒng)的應(yīng)用水平的限制,系統(tǒng)在運行過程中難免會出現(xiàn)故障。常見的DCS系統(tǒng)故障有:電源系統(tǒng)故障、硬件(模件)故障、系統(tǒng)軟件故障和通信網(wǎng)絡(luò)系統(tǒng)故障。
      1.1電源系統(tǒng)故障
      電源故障是DCS系統(tǒng)的致命故障,一旦電源出現(xiàn)故障,不僅整個系統(tǒng)會停止運行,而且還會導(dǎo)致機組的跳閘,造成非計劃停運。
      1.1.1電源系統(tǒng)出現(xiàn)故障的主要原因
      電源方面的問題比較多,一是備用電源不能自投,雖采用UPS和APS雙路互為備用的供電方式,但在轉(zhuǎn)換時也會出現(xiàn)瞬間失電,導(dǎo)致機組跳閘;二是保險配置不合理及DPU電源內(nèi)部故障等造成電源中斷,導(dǎo)致系統(tǒng)運行的停止;三是穩(wěn)壓電源波動引起保護誤動及接插頭接觸不良導(dǎo)致穩(wěn)壓電源無輸出;四是有的系統(tǒng)整個機柜通過一路保險供所有輸入信號或一路電源外接負載很大,導(dǎo)致模件的損壞;五是系統(tǒng)電源未采用UPS供電,冗余備用就更無從談起。
      1.1.2電源系統(tǒng)故障應(yīng)采取的防范措施
      要保證DCS系統(tǒng)的安全、穩(wěn)定,首先要具備合理的電源布置,其次要選用高質(zhì)量的電源模塊,并要保證較高的冗余率。再次是注意觀察電源的輸出電壓,防止出現(xiàn)波動。第四是對電源實行壽命管理,該更換的時候必須更換,絕對不允許等到電源出現(xiàn)了故障的時候才更換。
      1.2硬件(模件)故障
      DCS系統(tǒng)的硬件(模件)卡件可分為處理器模件、I/O模件及通訊模件三大部分,這三大模件的功能各自不同,常見的故障部位為過程通道和人機接口。
      1.2.1硬件(模件)出現(xiàn)故障的主要原因
     ?、龠^程通道故障也就是I/O卡件故障。引起I/O卡件發(fā)生故障的第一方面的原因是卡件因長時間工作而出現(xiàn)老化和損壞,這種工作的發(fā)生,一般是隱藏性的,只有參數(shù)出現(xiàn)異常,系統(tǒng)才會報警;第二個方面是連接線松動導(dǎo)致部分I/O模件與主機的通信中斷,在這種情況下,系統(tǒng)會馬上做出反應(yīng),出現(xiàn)報警;第三個方面是外界強電信號竄入形成干擾而導(dǎo)致通道故障的發(fā)生。
     ?、谥T如球標和控制操作出現(xiàn)失靈和實效以及操作員站出現(xiàn)死機、鍵盤和打印機出現(xiàn)工作不正常的現(xiàn)象都屬于人機接口故障。
      球標操作失靈的原因有裝置因長時間工作發(fā)生老化或者被浮塵或油膩污染,致使觸點不能實現(xiàn)自行通斷,也或是電纜插頭接觸不良造成與主機的通信斷路。
      控制操作實效的主要原因是因球標的操作信號不能改變過程通道的狀態(tài),有三種可能:其一可能是過程通道硬件發(fā)生故障;其二可能是操作員站所用軟件的缺陷;其三是設(shè)備超負荷或者過多地打開窗口,導(dǎo)致不響應(yīng)。
      操作員站死機的原因基本與控制操作失效的原因相同。
      鍵盤工作不正常的原因有:鍵盤組態(tài)出現(xiàn)錯誤、接觸不良、連接電纜松動或者在啟動主機時誤動了鍵盤,造成啟動缺失。
      打印機出現(xiàn)工作不正常的原因:或者是配置不合理,或者是因?qū)Υ蛴C實施屏蔽而造成的。

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    HP 85680A , HP S331D , Xycom 4810E , VMIVME 3800

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    SMC-2000-8DM , 74ACT16543DL , TEXAS INSTRUMENTS 5056108B , 1763-L16AWA

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    3HAB2136-1/08 , 57520001-BU , 81AA03-E/R1210 , DSBC175

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    HWIC-D-9ESW-POE , A201K2CA , ELHFD3020L , D200MOD-1200R

    9-580-4 , A2X3PK , HP 11854A , HP 83540A

    HP E8285A , TRICONEX TRICON 3701 , XYCOM 94508433256 , XYCOM FNCABLE201031M

    CIMR-G3A20P7 , HI-25ETCU-U , OPS-100H , SGMP-02A3G22

    5MT23 , TEXAS INSTRUMENTS 5005051 , 1756-L63S , IC200MDD851

    IC647ABCC , IC660TSD100 , 6GK1716-1TB63-3AA0 , TSXDSY64T2KC

    ABB 61179828 , AXHD30K , PK545NBW , 3BSE017197R1

    5716075K , 6638238F1 , D-386488-S , FP-1005

    MJ-2576 , QDCU802 , YB161102-SH/4 , PCI-1620B

    AA10FM37 , 3-842-174-360 , MHD112C-024-PPO-BN , WIC-2AM

    HMCP400X5C , GC3090 , D60PND , A30CDA0G61

    10250T-15331 , HP 35650 , HP 6645A , HP E3616A

    TRICONEX TRICON 2652-5 , XYCOM 70957-014 , XYCOM CA3CFCALL512MB01 , CACR-SR30SZ1SD-Y230

    DR2-02BC , JVOP-121 , SGME-A3AF12 , XU-ACL4720

    TEXAS INSTRUMENTS 305-8RLY-I , 1746-NT8 , 1794-OE8H , IC646NHR000

    IC660BBD022 , 6ES7 323-1BH01-0AA0 , 140CHS21000C , 172PNN21022C

    5RK40RGK-AM , PK243M-01BA , 3BSE000741R1 , 52B8877G01

    6624527J1 , BN75S-1E , EC-BOM-G-009HLA012 , INNIS-01

    PM210 , TU835V1 , PCIE-1622B-BE , AA6VM80EZ3/63W-VSC520B-ES

    REXROTH 9810231276 , VT-2000-K43/2 , WS-C3750E-48PD-S , 95851

    HMCP007C0 , DS90040A , BR-4040B200 , 13103AQD03

    HFDE308035 , HP 5361B , HP E1306A , TRICONEX TRICON 9001

    3515-A1L214103100V , XYCOM ACCONREP5 , CACR-SR035ZISSY223 , CPS-10ND

    JEPMC-PL200 , SGM-04U314 , USAPEM-03-YR11 , TEXAS INSTRUMENTS 25877058003

    1715-TADOB8DE , 1790-0B16X , IC641CFG100 , IC647SPT001

    IC697MDL350 , 140SAI94000S , STBXBE1100K , 26D20K

    PH265-04 , 3ADT220090R0012 , 3HNE001881 , 621ESC2R531G8111

    AF260-20-22-72 , DSQU223 , ICSM06A6 , OS30ACC12

    STAL265280-1 , PCI-1758UDO-AE , 993 659 047 00 , MDXMA1M071-32H

    ES-43-A8-1472 , 1841-ADSL , KS360350D , KES3400LSI

    E51-KF713 , C80DF1 , 400LAP10 , UTRS101BE

    HP 42941A , HP A3061A , HP 16803A , XVME400

    XYCOM 3615KPM , BAHBCE-20A , CIMR-XCBMA0P70 , JANCD-MM01C-02

    SGDS-01A72A , UGRMEM-04NSAC1 , S-10P , TEXAS INSTRUMENTS 560T

    1771-NIV , IC630PWR324 , IC647NST000 , IC695ALG628

    3RK7136-6SC00-0BC1 , BMXXTSCPS10 , 1SNA008018R0100 , GFH2G15-D1

    UPH596G-A , 3HAB8101-8/12B , 5STP12F3600 , ABB 707950-1

    DSQC236D , HESG223170R1 , NMFC02 , SAFT-139-CHS

    MIO-260 , 11264EVS , R021KK2071 , MNRR900946377

    REXNORD RC-80 , ENC1611AAC , NS360900A , ECE05D1AAA

    FDB4110A06 , 91-00744-10 , BA130 , HP 33321RX

    HP 85757D , HP V743 , XYCOM 71674A-100 , VMIVME-3115

    XYCOM PM101682-E , CIMR-P5U20550F , JANCD-1021 , SGDB-15ADP

    SR15BC1KS , 7MT-500 , TEXAS INSTRUMENTS 5056508 , 1764-MM1RTC

    IC200UEX636-24 , IC647IEC000 , IC693DSM324 , 6ES7 515-2AM01-0AB0

    TSXCUSBFIP , 110-01768 , CRD5107P , RKD507-A

    3HAB5760-1/06 , 57520001-ER , 889N-F5AF-12F , DSCA-114

    GJV3074311R1 , NGDR-03 , RMBA-01 , YT204001-JN

    Bosch 0265109023 , MSK070C-0300-NN-M1-UG1-NNNN , DB-10-2-52/315Y , MTC-R02.1-M1-A2-A2-NN-FW

    ESW-540-24P-K9 , FCATDH361VWK , EHD3200 , D120PS3

    9441H365 , 8880C6502 , HP 1250-1158 , HP 8405A

    HP E8404A , TCM 4352A , XYCOM 97957001 , XYCOM FN-XY32SKS41

    CIMR-G3U4030 , IN87002-HS , PMEE-12CBB , SGMP-02B312

    5TI-1020 , TEXAS INSTRUMENTS 500-5062 , 1756-L75 , IC200MDL632

    IC647ADC001 , IC670CBL003 , 6AV6381-1BP06-0DV0 , TSXDSY32T2K

    ABB 66319570 , AXU540A-A , PK564AW2-H100 , 3BSE018291R1

    5730030-US , 664230913698 , DC532 , FPR3345601R1012

    MPS10-S-M-N-NQ , QDMB-100M , YB560103-AL , PCIE-1680

    LTL00-3/9 , 4WE-10C40/CW110N9DA , 4WRKE10W100-21/6A24ETZ9/D3V-182 , VIP4-80

    CA3200 , DH362DK2WR , D520TA2 , A302GN

    10250H-2742 , HP 007276-001 , HP 6827A , HP E4208D

    TRICONEX TRICON 7400121-310 , 95212B-001 , XYCOM CA4-ATM10-01 , CACR-SR44BC1CSY414

    DS330 , JVOP-163 , SGMG-13A2ABB , XU-BDB0100T

    TEXAS INSTRUMENTS 305PRG , 1746-OV8 , 1794-TB2 , IC646NRX000

    IC660BCM501 , 6ES7 340-1CH02-0AE0 , 140CFE03200 , 170XTS10000

    A2595-9212 , PK244-02BA , 3BSE001552R1 , 5347049-BR

    6625619C1 , BYKP2331AX , EFLG40-G20R , INRK625002-AA

    PM645A , UD05A , MIC-75M13 , 31L-VSC61N00-SO107

    081WV10P1V1014WS024/00/D51/11 , Rexroth VTS-HF , WS-C3750-24FS-S , 9-1010-2

    HLD3500 , DR361UG , BJ3150 , 12100A-QD03

    FDCE322536 , HP 54120T , HP E1364A , TRICONEX TRICON 3504E

    XYCOM XVME-661 , XYCOM AGP3300-L1-D24 , CACR-SR03BB1AM , CPT 8660

    JGSM-01A , SGM-08A3FJ62 , USAREM-01DR011 , TEXAS INSTRUMENTS 25887330001

    1732D-8X81212HD , 1790-T8BV8VX , IC641HBR302 , IC647SSM005

    IC697MEM713 , 140NOE77101 , STBXCA1001 , 2GK5KA

    PH265-E2.6 , 3AFE61001395 , 3HNM03256-1 , 621RC2U0A713141

    AGS-DP4 , DSRF182 , IEPAF01 , OT250E04P

    STAL720113-1 , PCIE-1756-AE , BOSCH TCA5201 , VT-3000-S35-R5

    1500-0-0295 , PVDM3-16 , HKD3400F  , KD3400KA06XO2Y15

    E51-DF3 , C515HSE2B , 368D765G18 , EATON 238888

    HP 436A , HP A3453A , HP 34972A , XYCOM 82034CA

    XYCOM 4612-2000-1000-DVDW , C1MR-V7CU45P5 , CLSR-33-N2CE , JANCD-MM20

    SGDS-02A72AY539 , URGMEM-01SSW11 , SN74ABT16245AD?L , TEXAS INSTRUMENTS 575-4616

    1771-ODD , IC600BF811 , IC647NWV010 , IC695CMX128

    6ES7193-6BP40-0BA1 , TSX3722001 , 1SVR427034R0000 , H0012-162AC

    USM206-401W , 3HAB8802-1/2B , 5STP18F1800 , ABB 908-906

    DSQC252 , HESG332112R1 , NMMU02 , SB510

    PCA-6147 , PSV-PNS0-10HRM52 , FWC-DSM2.1-C11-03T07 , R160570431/2476MM

    GEIPRF , ED3225 , A10FGO , LSB360300E

    ED53200 , 87-01369-02 , CH-LOCS , HP 33326-60003

    HP 8595E , HP Z2030-80203 , XYCOM 1510 , VMIVME-M-485

    XYCOM QDA-UPD-001 , CIMR-P7U4011 , JANCD-CG31/24 , SGDB-44ADG

    TDB-P75LB2 , 944910-4-AL , TEXAS INSTRUMENTS 505-6851 , 1768-ENBT

    IC210BAR020 , IC647IGSBSC_M , IC693MDL340 , 6ES7 677-2AA41-0FM0

    BMXP3420302H , 129A514G01 , CSD5707B , SD5107P2

    3HAB7231-1 , 57520001-LK , 9873CB , DSCS116

    GJV3074322R302 , NIAI05 , RTQTC-061 , YT212001-AC

    DPR-1X 4WRZE , A2FM160 , Z2FS10-5-31/V , REXROTH 1070077984-201

    CSS11501S-C-K9 , S801T18P3S , EHD3030LA02 , D11VR10C

    92Y01756-09 , 6Y12RMFPM , HP 15435A , HP 8482A

    HP E9327A , 2553-8 7400056-380 , XVME-530 , XYCOM FP3900-T41

    CIMR-G5A40160 , JAMSC-120DAI53330 , PREH-2E5T/100-M1 , SGMP-08AWHG22

    5TI-1034-1 , TEXAS INSTRUMENTS 500-5828A , 1756-OA8D , IC200MDL930

    IC647AEC025 , IC670MDL241 , 6AV6545-0BA15-2AX0 , TSXAEY414

    ABB 471019002 , BL215GD-24F , PK564-NA-A20 , 3BSE020510R1

    57310255-AL , 686B264U09 , DCS402.0025 , FT19RX

    MU71B14-4 , QHFA212 , YB560103-BM , Bosch 860 33221 101

    Bosch 0811404034 , 4WEH10DE44/6EG , MAC112C-0-HD-3-C/130-B-1/S05 , 3560E-12D

    W210MLCFC , FS3400-40 , D520FM1 , A210MACAC

    C10EG3AB , HP 012845-001 , HP 70612B-K20 , HP E4400-60680

    Triconex 3006 , 97958-021 , XYCOM CA5-USBATL-01 , CACR-SR44TZ9SF-Y03A

    EEVA-51KM , JZNC-JRKS10M-110-00 , SGMG-20A2A , XU-DL1510

    TEXAS INSTRUMENTS 315AA , 1747-AENTR , 1794-TB3TS , IC646NSL899

    IC660BLC003 , 6ES7350-2AH00-0AE0 , 140AMM09000 , TSXETG100

    A3723-9215 , PK244PB , 3BSE003016R1 , 5400043A1

    6627090B2 , C190070273-0270B , EH145G-1L , IPESW11

    PME120 , V00802A08 , MOS-4140V , BOSCH VMA 20 KB 001-D

    DBW10B2-52-315U6AW120-60NZ55L-12 , R978910230 , WS-C3560G-48TS-S , 643252

    HKD3300 , DH664URB , BAB3100HS , 10370H69A

    FDC2060 , HP 54520C , HP E1403C , TRICONEX TRICON 3617E

    XVME-976 , XYCOM AGP3300-T1-D24-CA1M , CACR-SR03TZ0SM , DDMQF-SR22321R

    JOHB-C01 , SGM-08U3B4L , USAREM-03BE2K , TEXAS INSTRUMENTS 2593546-0014

    1732E-12X4M12QCDR , 1790D-T16BV0 , IC641SWP064 , IC647TDV050

    IC697PCM711MP , 140EHC10500 , STBXMP7810 , 2GN9K

    PH265M-33-C3 , 3ASD573001A9 , 3N040TW , 6229BZ10100B

    AIN-120 , DSSR116 , IH580 , OVR-PV-40-1000P-TS

    SX-900/64-8/B2 , PCIE-1816-AE , SHE43P15UC , Rexroth VT5002

    REXROTH 2-006-209-492 , WS-C3750X-48P-S , FD3060 , K13-000034-0201

    E51BLT5 , C400GK46A , HUGV78834 , E30-KF13

    HP 44727A , HP A3577A , HP 4418B , XYCOM 301993

    XYCOM 4615KPMT-1300-2000-DVDW-XP , CACR-04-SU23GC , CMPF-PM33 , JANCD-MSL02

    SGDS-08A01A , USADED-22YR22 , TEXAS INSTRUMENTS 100-3103 , TEXAS INSTRUMENTS U-01T

    1771-OW16 , IC600BF843 , IC647OPMC , IC695FTB1B132

    6ES7193-6SC00-1AM0 , TSXDSZ08R5 , 20/A8220IRSTDSPRA0013 , K0175-M

    2668-180-203/4 , 3HAC17970-1 , 5STP28M4200 , ABB N22E

     

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