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1794-OA8I
发布者:fzjfx0001  发布时间:2019-08-14 14:23:30

1794-OA8I现货 in stock! 欢迎来电咨询~!!

1794-OA8I


单元机组控制系统一体化的崛起
  随着一些电厂将电气发变组和厂用电系统的控制(ECS)功能纳入DCS的SCS控制功能范围,ETS控制功能改由DCS模件构成,DEH与DCS的软硬件合二为一,以及一些机组的烟气湿法脱硫控制直接进入单元机组DCS控制的成功运行,标志着控制系统一体化,在DCS技术的发展推动下而走向成熟。
  由于一体化减少了信号间的连接接口以及因接口及线路异常带来的传递过程故障,减少了备品备件的品种和数量,降低了维护的工作量及费用,所以近几年一体化控制系统在不同容量的新建机组中逐渐得到应用,如浙江华能玉环电厂4×1000MW机组、台州电厂2×300MW机组和安徽凤台电厂4×600MW机组均全厂采用西屋Ovation系统,国华浙能宁海电厂4×600MW机组全厂采用西门子公司的T-XP系统,大唐乌沙山电厂4×600MW机组全厂采用I/A系统,国华台山电厂2×1000MW机组采用北京和利时公司系统,浙江乐清电厂4×600MW机组全厂采用ABB公司的SYMPHONY系统等。 控制系统一体化的实现,是电力行业DCS应用功能快速发展的体现。排除人为因素外,控制系统一体化将为越来越多的电厂所采用。
  3)DCS结构变化,应用技术得到快速发展
  随着电子技术的发展,近年来DCS系统在结构上发生变化。过去强调的是控制功能尽可能分散,由此带来的是使用过多的控制器和接口间连接。但过多的控制器和接口间连接,不一定能提高系统运行可靠性,相反倒有可能导致故障停机的概率增加。何况单元机组各个控制系统间的信号联系千丝万缕,互相牵连,一对控制器故障就可能导致机组停机,即使没有直接导致停机,也会影响其它控制器因失去正确的信号而不能正常工作。
  因此随之控制器功能与容量的成倍增加、更多安全措施(包括采用安全性控制器)、冗余技术的采用(有的DCS的核心部件CPU,采用2×2冗余方式)以及速度与可靠性的提高,目前DCS正在转向适度集中,将相互联系密切的多个控制系统和非常复杂的控制功能集中在一对控制器中,以及上述所说的单元机组采用一体化控制系统,正成为DCS应用技术发展的新方向,这不但减少了故障环节,还因内部信息交换方便和信息传递途径的减少而提高了可靠性。
  此外,随着近几年DCS应用技术的发展,如采用通用化的硬件平台,独立的应用体系,标准化的通讯协议,PLC控制器额融入,FCS功能的实现,一键启动技术的成功应用等,都为DCS增添了新的活力,功能进一步提高,应用范围更加宽广。
  4)全厂辅控系统走向集中监控
  一个火电厂有10多个辅助车间,国内过去通常都是由PLC和上位机构成各自的网络,在各车间控制室内单独控制,因此得配备大量的运行人员。为了提高外围设备控制水平和劳动生产率,达到减员增效的目的,随着DCS技术和网络通讯功能的提高,目前各个辅助车间的控制已趋向适度集中,
  整合成一个辅控网(简称BOP 即Balance Of Plant的缩写)方向发展,即将相互独立的各个外围辅助系统,利用计算机及网络技术进行集成,在全厂IT系统上进行运行状况监控,实现外围控制少人值班或无人值班。
  近几年新建工程迅速向这个方向发展。如国华浙能宁海电厂一期工程(4×600MW)燃煤机组BOP覆盖了水、煤、灰等共13个辅助车间子系统的监控,下设水、煤、灰三个监控点,集中监控点设在四机一控室里,打破了传统的全厂辅助车间运行管理模式,不但比常规减员30%,还提升了全厂运行管理水平。整个辅控网的硬件和软件的统一,减少了库存备品备件及日常管理维护费用。由于取消了多个就地控制室,使得基建费用和今后的维护费用都减少。一些老厂的辅助车间也在进行BOP改造,其中浙江省第一家完成改造的是嘉兴发电厂2×300MW机组,取得较好效果。

ABB SERVO MOTOR 3HAB4040-1

ADTEC AX 3000, RF Plasma Generator, Novellus 27-176875-00, very clean

7 Exxus TECH RR-P3-8 9/23 Conflat Tee with two 2-3/4" & one 41/2" flanges

INDRAMAT MDD112D-N-030-N2M-130PB0 USPP MDD112DN030N2M1A

ALLEN BRADLEY 1395-B65-C1-P12 USPP 1395B65C1P12

BALDOR 827710 FNFP 827710

ATLAS COPCO D302-DS7 USPP D302DS7

MODICON AS-584A-340 USPP AS584A340

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BARBER COLMAN 41AA-22002-200-1-00 USPP 41AA22002200100

XYCOM XVME-540 USPP XVME540

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SIEMENS S5 6ES5 441-7LA11

Siemens S5 Memory Submodule 6ES5 375-0LD31 29850

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HORNER GENIUS INTERFACE MODULE HE300GEN100J HE-300GEN100J

WEIDMULLER RS-SCI INTERFACE MODULE

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Omron C1000H-CPU01-E2V1

Schneider Modicon AS-J470-000 USPP ASJ470000 PROGRAMMING ADAPTER

Schneider Modicon #AS B828-016 OUTPUT MODULE 5VDC 16 PT

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Schneider Modicon MODICON/ AS-B553-101 INPUT MODULE 9-56VDC XLNT

Schneider Modicon AS-H827-100

Schneider Modicon Shneider 11 Slot Chassis W-No Cards AS-H827-209

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SIEMENS Moore 15823-1-5 Servo Assembly Board 1582315

Allen-Bradley AB Panelview 1000 Cat 2711-K10C1

Abacus PCG-3000R

AC TECH VARIABLE SPEED AC MOTOR DRIVE M14250B, W/REMOTE KEYPAD, 25HP, MC SERIES

A06B-6044-H312 FANUC AC SPINDLE DRIVE Amplifier with A20B-0008-0031/07B

8 - DRANETZ 658 Power Quality Analyzer

ROFIN SINAR 12100-073 NSPP 12100073

ALLEN BRADLEY 6180-EIIEFLDZECZ USPP 6180EIIEFLDZECZ

ALLEN BRADLEY 2711-MT14 NSPP 2711MT14

INDRAMAT TDM-1.2-50-300-W1-115 USPP TDM1250300W1115

YOKOGAWA DX104-2-2/AR1/S13/NS-S NSFP DX10422AR1S13NSS

XYCOM 9487-2891319010000 USPP 9487289131901000

LECROY 6810 USPP 6810

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SIEMENS 6ES5 420-4UA13 6ES54204UA13

SIEMENS S5 6ES5 188-3UA12 Rack Excluding Power Supply

Siemens CPU ControllerS5 6ES5 943-7UB11 23530

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1794-OA8I

RELEASE SuperMicro X9DRT-HF MB ※Check W/ Us for Availability FIRST※

Texas Instruments 560-2120

Tektronix 80A03 TCA Probe Interface Module

TV One C2-8210 Corio2 DVI-U/3G/HD/SD-SDI Switcher

Siemens DCS Module 6DR2803-8C NIB

Modicon MM-FM94-000

Schneider Modicon TSX Compact Subrack DTA 202 - AS-HDTA-202

Schneider Modicon ASB875102 TESTED Analog INPUT Module AS-B875-102

Schneider Modicon AS-BDEP-297 NSFP ASBDEP297

Schneider Modicon AS-BDEP-220 INPUT MODULE ASBDEP220

Schneider Modicon -AS-884A-301

Schneider Modicon DTA 200/AS-HDTA Subrack rack back plane 5

schneider Telemecanique Limit Switch XCE-154 NIB

Schneider Discrete Input Module AS-BDEP-216 DEP 216 WARRANTY

PWR-C49M-1000AC 4900M AC POWER SUPPLY 1000 WATTS

SIEMENS 6ES5451-4UA14 DIGITAL OUTPUT MODULE NIB-FS

SIEMENS 6DD1610-0AG1 SIMADYN D MEMORY MODULE IN BOX

MERCEDES BENZ COMMUNICATION MODULE A 211 820 81 26

SIEMENS Simodrive 6SN1123-1AA01-0FA1 LT-MODUL INT.200A Version A

SIEMENS SINUMERIK 840D 6FC5210-0DA00-1AA16FC5203-0AB12-0AA1 MMC-100 HMI

SIEMENS /MOORE 16267-1-4 MODULNET INTERFACE CARD 1626714

ALLEN-BRADLEY SLC 500 PLC 1747-ASB ADAPTER WITH INPUT /OUTPUT MODULES

Allen Bradley Safety Relay 700-ZBR100AZ1 700ZBR100AZ1

ABB S4C 3HNE00313-1 Teach Pendant -

A06B-0148-B075 FANUC SERVO MOTORS REMANUFACTURED

0-58706-4

OMRON NT600M-DT211 USPP NT600MDT211

ALLEN BRADLEY 1756-M3 NSFP 1756M3

ALLEN BRADLEY 1336-RFB-80-C USPP 1336RFB80C

GENERAL ELECTRIC DS200LPPAG1AAA USPP DS200LPPAG1AAA

TAYLOR ELECTRONICS 1734FC14200A NSFP 1734FC14200A

SQUARE D 3050-EGW-1 NSFP 3050EGW1

COMPUMOTOR 2100-2-P USPP 21002P

Siemens 6ES5 951-7LB14 6ES59517LB14

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RSP720-3CXL-GE Cisco Route Switch Processor 720-3CXL Router

Telemecanique TSX AXM 1 72

SIEMENS Simatic 6ES5301-3AB13 Comm. Interface Module

WAGO 750-653-000-011 Serial Interface RS-485

Siemens 6SE7090-0XX84-0KB0 6SE7 090-0XX84-0KB0 FreeShip

Modicon AS-P371-001

Schneider Modicon Lexium LXM 17D 4A Servo Drive AS MHDA1004A00

Schneider Modicon ASB821008 UNIT Gould 10-60 VDC Input Module AS-B821-008

Schneider Modicon AS-B872-200 USPP ASB872200

Schneider Modicon 24VDC 32 POINT INPUT MODULE MODEL AS-B827-032

Schneider Modicon DISCRETE INPUT AS-BDEP-216 ~ QTY X 6

Schneider Modicon AS-J812-000 Remote I/O adapter J812

Schneider Electric MPCKT55NAX20N Magelis Compact PC 15 Inch Touchscreen

Siemens 6ES5 421-8MA12 Digital Input Module NIB

Rev 1.1 SuperMicro H8DAE-2 Bulk Pack MB Support Dual Core CPU

SIEMENS 9510DC-1156-AEZA/9510DC1156AEZA ION ACCESS DISPLAY NIB

SIEMENS SINUMERIK MMC 102 6FC5210-0DA20-0AA1 NE

ProSoft TECHNOLOGY ControlLogix COMMUNICATIONS MODULE MVI56

SIEMENS FilterModule 6SN1111-0AA01-1BA0 16 Amps Test

SIEMENS SINUMERIK 810D/DE NCU 571.3 6FC5357-0BB11-0AE1 NIB

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Advanced Plasma Systems PE-10K AC Plasma Power Source 3157507-001C

(Q6-3) 1 GARBE LAHMEYER & CO SU216 1102047011 DRIVE Q6-3

MICRO MOTION R200F352NCAMEZZZZ USPP R200F352NCAMEZZZ

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FANUC A20B-0008-0540/01A USPP A20B0008054001A

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Square D 8030 CRM-222

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Schleicher USP 2A U 31507501 622 075

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Schneider Modicon AS-C484-266 "AS-IS"

Schneider Modicon AS-B832-016/ASB832016 Beautiful condition

MODICON 91-00992-02 1PH 85VA 110/230VOLTS 50/60HZ MONITOR REFURBISHED

SIEMENS Analog Input Module 6ES5465-4UA13 NIB Opened to Take Pictures

SCHWEITZER 250603414X SEL-2506 REMOTE I/O MODULE NIB

SIEMENS MOORE PRODUCTS 15853-12-1 LINK FACE BOARD NNB

SIEMENS Sinumerik 6FC5412-0FA10-0AA0 Impuls Adapt .

SINGLE POINT

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ALLIS CHALMERS CB26400 NSPP CB26400

ALLEN-BRADLEY 1400E 2711E-K14C6 SER A REV B PANELVIEW TERMINAL

ABB BI Vector 500 Drive

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(3)GOULD BREAKER TYPE K-1600S / FRAME SIZE 1600A /SOLID STATE TRIP ITE TYPE SS

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TEXAS INSTRUMENTS PLC 565-2820 NSFP 5652820

FANUC A06B-0356-B755 NSFP A06B0356B755

CUTLER HAMMER JDC3250VWH09 USPP JDC3250VWH09

RELIANCE ELECTRIC 11C83K NSFP 11C83K

MOORE PRODUCTS 16114-171/04 USPP 1611417104

KAWASAKI TRC-5052 USPP TRC5052

Siemens 6ES5 374-2FJ21 6ES5374-2FJ21 XLT

Siemens 6ES5-696-3AA21 NSFP 6ES56963AA21

SIEMENS 6ES5-375-0LC41 USPP 6ES53750LC41

Siemens 6ES5 375-1LA21 Memory Sub Module 17030

Siemens CPU 948- 6ES5 948-UA22 very rare

Siemens 6SE6420-2UC11-2AA1 6SE6 420-2UC11-2AA1 NIB FS

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Measurement Technology LTD MTL 8512-IF-HA HART Interface Module

XYCOM 70240-001 REV 1.1 I/O MODULE VME BOARD

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Siemens PC/MPI+ PC MPI+ PLC Programming Serial Cable

Reliance 0-51847-2

Schneider Modicon AS-B351-001 ASB35101 AC Input NIB FS

Schneider Modicon AS-9900-040 USPP AS9900040

Schneider Modicon AS-P453-632 USPP ASP453632

Schneider Modicon AS-B804 -116 NICE

Schneider Modicon AS-B231-501

Modicon PanelMate Plus PM Plus 1000 MM-PM10300C 24VDC

SIEMENS SIMATIC S5 6ES5 6ES5436-4UA12 VPE5 PLC DIGITAL INPUT MODULE 51922

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SIEMENS 6DD1607-0CA1 6DD1 607-0CA1 in Box Free Ship

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SIEMENS MINT 6SN1123-1AA00-0CA1 6SN11231AA000CA1 Servo

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SIEMENS Control Rack 6FC3761-1FB Z_ Genumerik 3G Unit Sinumerik

Able Reducer VRKF-15C-200 Gear Ratio 1:15

ALLEN-BRADLEY 2706-D21J2 OPERATOR INTERFACE DATALINER

ABB ACH550-UH-059A-4 AC DRIVE IN A

Acterna TPI 570 ISDN Primary Rate Test Set

6ES7314-6CF00-0AB0 6ES7314-6CF02-0AB0 Brand , Factory Sealed,

88 Current Cable Puller w/Chains = Greenlee 6801 NIB

SIEMENS 6SE9-523-7DH40 NSFP 6SE95237DH40

BARBER COLMAN GCM-84221-1-0-1 USPP GCM84221101

AVG UTICOR 100G-OI1S2R1 USPP 100GOI1S2R1

MODICON AS-B883-201 USPP ASB883201

INTERMEC CV60A12A84001804 USPP CV60A12A84001804

BROOKS MFG 11-00457-1 USPP 11004571

Siemens S5-95U COMPACT UNIT PROFIBUS-DP MASTER

Siemens 6ES5-456-4UA12 NSFP 6ES54564UA12

SIEMENS 6ES5 752-0AA43 6ES57520AA43

SIEMENS S5 6ES5 460-4UA12 Module 6ES5-460-4UA12

Siemens S5 WF625 6FM1610-2CB00 6FM1 610 6FM16102CB00

SIEMENS 6ES7214-1BD22-0XB0 ping Worldwide

Siemens SIJECT OP37 6AV3 637-7AB16-1AM0 Membrane Keypad

Siemens 505-6202

HP 75000 Quad Line Interface Module p/n e1685a tested

WIELAND 87.200.2203.3 TERMANAL BLOCK INTERFACE MODULE

Siemens 6ES5 375-0LA15 6ES5375-0LA15 Memory Card FS

Siemens LOGO! Memory Card 6ED1056-5CA00-0BA0 NIB

Omron C200H-IA122

Schneider Modicon AS-H827-107 Gould 11 Slot 800 Series Rack

Schneider Modicon 984-780 PLC CONTROLLER MODULE PN AS-9760-000

Schneider Modicon AS-J200-001 REMOTE I/O SYSTEM EXPANDER

Schneider Modicon MODICON/ AS-W801-006 CABLE SIGNAL 800I/O 6FEET XLNT

Schneider Modicon AS-M380-006

 

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