WWW国产精品内射老熟女,欧美人妻第一页一区,欧美综合一区二区综合,色妺妺AⅤ爽爽一区二区

6SN1121-0BA11-0AA0現(xiàn)貨 in stock! 歡迎來電咨詢~??！

單元機(jī)組控制系統(tǒng)一體化的崛起
　　隨著一些電廠將電氣發(fā)變組和廠用電系統(tǒng)的控制(ECS)功能納入DCS的SCS控制功能范圍，ETS控制功能改由DCS模件構(gòu)成，DEH與DCS的軟硬件合二為一，以及一些機(jī)組的煙氣濕法脫硫控制直接進(jìn)入單元機(jī)組DCS控制的成功運(yùn)行，標(biāo)志著控制系統(tǒng)一體化，在DCS技術(shù)的發(fā)展推動(dòng)下而走向成熟。
　　由于一體化減少了信號(hào)間的連接接口以及因接口及線路異常帶來的傳遞過程故障，減少了備品備件的品種和數(shù)量，降低了維護(hù)的工作量及費(fèi)用，所以近幾年一體化控制系統(tǒng)在不同容量的新建機(jī)組中逐漸得到應(yīng)用，如浙江華能玉環(huán)電廠4×1000MW機(jī)組、臺(tái)州電廠2×300MW機(jī)組和安徽鳳臺(tái)電廠4×600MW機(jī)組均全廠采用西屋Ovation系統(tǒng)，國華浙能寧海電廠4×600MW機(jī)組全廠采用西門子公司的T-XP系統(tǒng)，大唐烏沙山電廠4×600MW機(jī)組全廠采用I/A系統(tǒng)，國華臺(tái)山電廠2×1000MW機(jī)組采用北京和利時(shí)公司系統(tǒng)，浙江樂清電廠4×600MW機(jī)組全廠采用ABB公司的SYMPHONY系統(tǒng)等。 控制系統(tǒng)一體化的實(shí)現(xiàn)，是電力行業(yè)DCS應(yīng)用功能快速發(fā)展的體現(xiàn)。排除人為因素外，控制系統(tǒng)一體化將為越來越多的電廠所采用。
　　3)DCS結(jié)構(gòu)變化，應(yīng)用技術(shù)得到快速發(fā)展
　　隨著電子技術(shù)的發(fā)展，近年來DCS系統(tǒng)在結(jié)構(gòu)上發(fā)生變化。過去強(qiáng)調(diào)的是控制功能盡可能分散，由此帶來的是使用過多的控制器和接口間連接。但過多的控制器和接口間連接，不一定能提高系統(tǒng)運(yùn)行可靠性，相反倒有可能導(dǎo)致故障停機(jī)的概率增加。何況單元機(jī)組各個(gè)控制系統(tǒng)間的信號(hào)聯(lián)系千絲萬縷，互相牽連，一對(duì)控制器故障就可能導(dǎo)致機(jī)組停機(jī)，即使沒有直接導(dǎo)致停機(jī)，也會(huì)影響其它控制器因失去正確的信號(hào)而不能正常工作。
　　因此隨之控制器功能與容量的成倍增加、更多安全措施(包括采用安全性控制器)、冗余技術(shù)的采用(有的DCS的核心部件CPU，采用2×2冗余方式)以及速度與可靠性的提高，目前DCS正在轉(zhuǎn)向適度集中，將相互聯(lián)系密切的多個(gè)控制系統(tǒng)和非常復(fù)雜的控制功能集中在一對(duì)控制器中，以及上述所說的單元機(jī)組采用一體化控制系統(tǒng)，正成為DCS應(yīng)用技術(shù)發(fā)展的新方向，這不但減少了故障環(huán)節(jié)，還因內(nèi)部信息交換方便和信息傳遞途徑的減少而提高了可靠性。
　　此外，隨著近幾年DCS應(yīng)用技術(shù)的發(fā)展，如采用通用化的硬件平臺(tái)，獨(dú)立的應(yīng)用體系，標(biāo)準(zhǔn)化的通訊協(xié)議，PLC控制器額融入，F(xiàn)CS功能的實(shí)現(xiàn)，一鍵啟動(dòng)技術(shù)的成功應(yīng)用等，都為DCS增添了新的活力，功能進(jìn)一步提高，應(yīng)用范圍更加寬廣。
　　4)全廠輔控系統(tǒng)走向集中監(jiān)控
　　一個(gè)火電廠有10多個(gè)輔助車間，國內(nèi)過去通常都是由PLC和上位機(jī)構(gòu)成各自的網(wǎng)絡(luò)，在各車間控制室內(nèi)單獨(dú)控制，因此得配備大量的運(yùn)行人員。為了提高外圍設(shè)備控制水平和勞動(dòng)生產(chǎn)率，達(dá)到減員增效的目的，隨著DCS技術(shù)和網(wǎng)絡(luò)通訊功能的提高，目前各個(gè)輔助車間的控制已趨向適度集中，
　　整合成一個(gè)輔控網(wǎng)(簡(jiǎn)稱BOP 即Balance Of Plant的縮寫)方向發(fā)展，即將相互獨(dú)立的各個(gè)外圍輔助系統(tǒng)，利用計(jì)算機(jī)及網(wǎng)絡(luò)技術(shù)進(jìn)行集成，在全廠IT系統(tǒng)上進(jìn)行運(yùn)行狀況監(jiān)控，實(shí)現(xiàn)外圍控制少人值班或無人值班。
　　近幾年新建工程迅速向這個(gè)方向發(fā)展。如國華浙能寧海電廠一期工程(4×600MW)燃煤機(jī)組BOP覆蓋了水、煤、灰等共13個(gè)輔助車間子系統(tǒng)的監(jiān)控，下設(shè)水、煤、灰三個(gè)監(jiān)控點(diǎn)，集中監(jiān)控點(diǎn)設(shè)在四機(jī)一控室里，打破了傳統(tǒng)的全廠輔助車間運(yùn)行管理模式，不但比常規(guī)減員30%，還提升了全廠運(yùn)行管理水平。整個(gè)輔控網(wǎng)的硬件和軟件的統(tǒng)一，減少了庫存?zhèn)淦穫浼叭粘９芾砭S護(hù)費(fèi)用。由于取消了多個(gè)就地控制室，使得基建費(fèi)用和今后的維護(hù)費(fèi)用都減少。一些老廠的輔助車間也在進(jìn)行BOP改造，其中浙江省第一家完成改造的是嘉興發(fā)電廠2×300MW機(jī)組，取得較好效果。

Agilent N4011A- MIMO/Multiport Adapter

Aeroflex PN9000B Phase Noise Measurement System

Agilent HP 8757D Scalar Network Analyzer

Agilent / HP 8156A Optical Attenuator with option 221

Agilent HP J2127A Transmission Test Set

Agilent / HP 4395A Spectrum Network Impedance Analyzer: 10 Hz to 500 MHz + 010

ABB 3HAB-6182-1 PLC CPU Board DSQC-335 WOW

Agilent/HP 54855A 6Ghz 20GS/s w/opt. EZJIT Plus/Mem/High Speed Serial/eGUI/USB

Agilent 16950A /016 68ch 4GHz Timing/600M State 16MB Logic Analyzer Module

ABB 57275812 ANALOG INTERFACE BOARD AIO 86-8/4

AGILENT HP E7495A BASE STATION TEST SET EMC SPECTRUM ANALYZER 10MHZ TO 2.5GHZ

Aerotech ES14549-1 ALS20033-LTAS-NC ALS20045 linear motor driven x-y table

Agilent N8737A Power Supply, 60V, 55A, 3300W

Agilent / HP 8648D Signal Generator, 9 kHz to 4 GHz with Options 1E2 & 1E5

Agilent-HP E5515C-003-E1962B Communications Test Set

Agilent 53230A 350 MHz Universal Frequency Counter/Timer, 12 digits/s, 20 ps

ABB ACS501-041-3-00P2000 | 12mo | Free EU ping | Inc UK VAT

Agilent MSO6032A 300 MHz, 2 + 16 Ch Mixed Oscilloscop w/op8ML 8 Mpts Memory

AGILENT - HP E8241A 250 kHz TO 20 GHz PSG-L SERIES SIGNAL GENERATOR W/ OPTS

Agilent two 85133-60017 0.6 (m) FLEXIBLE TEST PORT FREQ:DC-50G Cable

Agilent 1134A InfiniiMax 7 GHz Differential Probe

ABB 3HAB2207-1/3 DRIVE BOARD 3HAB22071

Agilent HP DSO80604B 6Ghz 4 ch Calibrated

Aeroflex 3025 RF Signal Generator PXI module

Agilent N5181A MXG RF Analog Signal Generator 100KHz - 3GHz

Agilent HP DSO81204B 80000B Series Infiniium Oscilloscope w/ Cal and Accessories

Aeroflex 3035 Wideband RF Digitizer PXI module

Agilent N5182A /019/1EL/1ER/403/506/652/UNU/UNV MXG RF Signal Generator - N5162A

Agilent / HP 84814A Peak Power Sensor, 500 MHz to 40 GHz

Agilent/HP 8664A 001-003-004 High-Perbance Signal Generator, 3 GHz

Agilent 37718A -002-011-106-601

ABB 64513583 MAIN CIRC. INTERFACE NINT-71C SEALED

Agilent HP N4906A 3.6 Gb/s Bit Error Ratio Tester

AF-OLK52A-D-SC Power Meter / Source 850 1300 1310 1550

Agilent OmniBer 718A / 37718A W/OPT 002 012 106 200 ,210,601 UK6

Agilent / HP E4417A Power Meter 9 kHz - 110 GHz , Dual (EPM-P Series)

ABB 1000 KVA Dry-Type Transber 2400 V - 480/277 Volt

Agilent 66309D DC Source

ABB ACS800-U1-0060-5 INDUSTRIAL AC MOTOR VFD DRIVE 60HP 380-500 Volt 3 Phase

Agilent N2X N5603A 1-port 10Gb XR-2 Test Card (Ethernet LAN/ WAN XFP) w/

Agilent / HP 4396B Network/Spectrum Analyzer 30- + FRESH CAL

Agilent/ HP 83480A / 83485A w 034 Optical Plug In Module

Agilent 16756A

ABB 3HNE00313-1 S4C, S4C+ Robot Teach Pendant

Agilent HP E4437B 4 GHz Signal Generator with option UN8

Aeroflex IFR TCAS-201 Traffic Alert and Collision Avoidance Ramp Test Set

Agilent N5630A 10/100/1000 Electrical/Optical XS-2 Card

Agilent / HP 8594E -004-010-043-050-105 with TRACKING GENERATOR

Agilent/HP J6800A Network Analyzer

Agilent 4291A-001-002-1C2

ABB ACH550-UH--096A-4+K452 VFD 75 HP 460 VOLT 95 AMP

Agilent J2126A test set options 102 191

Agilent - HP 83711B Synth Generator

Agilent PREMIUM N5182A MXG RF Vector Signal Generator - 100 kHz - 6 GHz

Agilent / HP N4002A Noise Source, SNS Series, 10 MHz to 26.5 GHz, ENR 15dB

ABB 3BSE010535R1 SE02354560 PM645B (3BSF 010 535 R1 )

Agilent HP 8920B RF Communications Test Set

ABB AUTOMATION LINE SUBSTATION REF543AM129AAAA

Agilent N4693A Electronic Calibration Module, 10 MHz to 50 GHz, 2.4 mm, 2-port

Agilent / HP 81623B Optical Power Head -80 dBm to 10 dBm

Agilent/HP 83486A electrical module with OPTION 040

Agilent 1730B

ABB 57360001-KG MEMORY MODULE DSMB 175 57360001KG

Agilent HP EMC Analyzer 9KHz-26.5 GHz Model#-E7405A Parts Unit E-7405A

Agilent 1733A 4 Ports 4 Gb/s Fibre Channel Test Module

ABB 57411511 CIRCUIT BOARD

Agilent HP Hewlett Packard 8591A Spectrum Analyzer 9 kHz - 1.8 GHz 8590 A

AES Getty Servo Motor M305D-A00-102

Agilent N8975AZ-K63

Agilent / HP 8753C Network Analyzer: 300 kHz - 3 GHz

AIMCO AUET/MTM Electronic Torque Tester

Agilent 54831B 600Mhz 4ch Infiniium Oscilloscope + Cal and 30

ABB ACS550-U1-157A-4 125 Hp 480V 3 phase AC general purpose drive

Agilent MSO8104A-002-007-009-640

Agilent / Hewlett-Packard 53132A Universal Counter Options 012 & 030

Agilent U2002A-100

Agilent 11793A Microwave Converter

ABB 3HAB8101-1/01C DSQC345A Servo Drive Unit

Agilent HP E4401B Spectrum Analyzer

Aeroflex IFR 1600S Service Monitor

Agilent N5230A PNA-L Network Analyzer, 2-ports, 300kHz - 6GHz (Opt.020)

Agilent / Hp 8509B Polarization Analyzer System

Agilent/HP 8753E 30 kHz-3 GHz Network Analyzer Opt 1D5

Agilent 37718C -001-012-601

ABB AC Drive VFD ACS800-U1-0060-5+D150 60 hp 50hp 3ph 380-500v 79A

Agilent HP Singlemode Fiber SmartProbe for WireScope 350 155 N2597A-040

AGIE AGIEMATIC CD SBC-08E Agie Nr. 667.244.9 add-on SBX-03 D SBX-05 with NPX-01A

Agilent Optical Measuring System 8163A, 81618A, 81623A and Tunable Laser 81689A

Agilent / HP E4433B - 100 - 101 - 1E5 - H99 - UN5 - UND 4GHz Signal Generator

ABB 15kV Advac Panel Cell Vacuum Circuit Breaker Medium Voltage 15 kV complete

Agilent HP 8722D Vector Network Analyzer

ABB AF750-30 Contactor 1200-00410

Agilent N4002A 10MHz-26.5GHz SNS Series Noise Source 3.5mm Connector

Agilent / HP 6675A 120 V, 18 AMP, Programmable Power Supply

Agilent/HP 37718A OC-48 Omniber

Agilent 16902A

ABB 418446880 Robot External Positioner 250R/500C Safety Module for S4 Controlle

Agilent HP E5062A 300 KHZ-3 GHZ ENA Series Network Analyzer with Options 015/150

Aeroflex-IFR 2975-2-3-12 Wireless Radio Test Set for Project 25 (P25)

Agilent N7784B /022

Agilent / HP 86142B High Perbance Optical Spectrum Analyzer w/option 006

AGILENT-A6275EA A6275EAT DIP IC Good Quality

Agilent 4396B

Agilent / HP 8644B Signal Generator, 252 kHz - 1030 MHz (2060 MHz)

Agilent-Agient 8340B

Agilent 4396B-010

ABB ACS 600 INVERTER UNIT AC DRIVE ACS60402106000B0000901

Agilent J7230A,SDH/SONET TEST SET

Agilent - HP 8665B SIGNAL GENERATOR

Agilent Technologies 6000 Series MSO6032A Mixed Signal Oscilloscope 300MHz

Agilent / HP U2001H 10MHz - 6GHz USB Power Sensor (-50dBm to +30dBm) CALIBRATED

ABB 3HAA0001-ACF IRB6000 Robot Servo Motor Axis 4 or 5 (complete with pinion)

Agilent HP 8970B Noise Meter

ABB BAILEY IMMFP12 SYMPHONY MULTI-FUNCTION PROCESSOR MODULE 5V 10W REV A 84832

Agilent N4903A -G13

Agilent / HP 83623A Synthesized Swept Signal Generator 20GHz w/opt 001, 004, 008

Agilent/HP 8564EC Spectrum Analyzer - 9 kHz to 40 GHz, with Mass Memory Module

Agilent 346C 10MHz-26.5GHz Noise Source 3.5mm

ABB 6008BZ10000C VIDEO MODULE PCB

Agilent HP N1921A 50mHz-18gHz wideband power sensor with opt. 105 epm p-series

AFL Fujikura Ultrasonic Cleaner USC-01A

Agilent N9039A

Agilent / HP 89410A Vector Signal Analyzer, DC - 10 MHz

Air Products 807-470790602A Gas Line Assembly PCV1A

Agilent 54846A 4-Channel, 2.25GHz 8GSa/s Infiniium Oscilloscope

ABB ACS601-0060-5-000B1200800

AGILENT N2216A VXI SCSI INTERFACE SCSI A SCSI B VXI BUS

Agilent / HP 41501B SMU Pulse Generator Epansion Unit FOR 4155X Series Test Set

Agilent Wirescope 350 Cat5E Cat6 Multimode Fiber Cable Certifier

Agilent 16442A Test Fixture for 4155 or 4156

ABB 3HAC2206-1 IRB2400 M2000 Robot Axis 2 Servo Motor with Pinion -

Agilent HP E4421A Signal Generator

Aeroflex IFR 2945B with option 8 & option 32 Communications Service

Agilent N5306A Protocol Analyzer for PCIe 1.0 and 2.0 - Key component of E2960B

Agilent / HP 8564EC Spectrum Analyzer 9 kHz-40 GHz Opt 0B0 30- + CAL

Agilent/HP E4432B/100/101/201/UN8/UND Signal Generator - 250 kHz to 3.0 GHz

Agilent 4263B 100Hz/1KHz/10KHz/100KHz LCR Meter w/op001

ABB ACH550-UH-045A-4 AC DRIVE IN A

Agilent Infiniium DSO80804B 8 GHz-40 Gsa/s Oscilloscope Calibrated

Agilent - HP 3708A Noise and Interface Test Set

Agilent PREMIUM E4440A PSA Spectrum Analyzer, 3 Hz - 26.5 GHz

Agilent / HP E6651A Mobile WIMAX Test Set + Options 506, 6M1, E6655A, & N6421A

Agilent - HP 37742A 2M Test Set

Agilent PREMIUM E4443A PSA Spectrum Analyzer, 3 Hz - 6.7 GHz

Agilent / HP E8267D PSG Vector Signal Generator 20 GHz

ABB 2668 402-29/3 DSCA125A MASTER COMMUNICATIONS BOARD MODULE CARD 62644

Agilent HP 8753ES Options 1D5/006 6GHz Network Analyzer

ABB ASEA CIRCUIT BOARD CARD DSMB127 DSMB 127 ME8I 57360001-HG/2 2668 184-584/2

Agilent N4421B

Agilent / HP 81180A Arbitrary Waveb Generator, 4.2 GS/s + Option 264

Agilent/HP 6651A system power supply, 0-8 volts at 0-50 amps, NIST-certified

Agilent 16950A -032

ABB 57275871 / UC86-8CH / UC868CH / UC86 8CH / UC86.8CH

AGILENT hp E8075A + E8076A + E8077A EMCP INTERPOSER MIDBUS PROBE

Aerotech Unidex 12 Controller with Stages

Agilent N8740A 150V 22A 3300W Programmable Power Supply - 30

Agilent / HP 8665B Signal Generator, 100 kHz to 6 GHz w/ Options 001, 004 & 010

Agilent-HP E7906A 10/100 Ethernet Test Card

Agilent 5348A

ABB ACS550 ACS550-U1-038A-4+B055 20 Hp, 25 Hp, ACS550, VFD, N12

Agilent MSO6054A Mixed Signal Oscilloscope: 500 MHz, 4 scope and 16 digital ch.

Agilent - HP J6801B /J6810B/J6828A/ Distributed Network Analyzer

Agilent U1604A Handheld Oscilloscope w/ accessories & Pelican Case Nearly

Agilent 1157A

ABB 3HAB2241-1 CPU BOARD XLNT

Agilent HP E1428A Digitizing Oscilloscope Message-based VXI Module

Aeroflex 3416 -03-05-21

Agilent N5182A 250 kHz-6 GHz MXG Vector Signal Generator Opt 506,UNZ

Agilent / HP 84815A Peak Power Sensor, 20 MHz to 18 GHz for 8990, 8991, 8992

Agilent/HP 8664A 3Ghz High-Perbance Signal Generator

Agilent 37718A -002-011-204-601

ABB 64513591 MAIN CIRC. INTERFACE NINT-72C SEALED

Agilent HP N5181A MXG RF Analog Signal Generator

AFP TRANSFORMER 410422

Agilent Omniber 720 J1407A Communication Analyzer

Agilent / HP E4418B Power Meter, 9 kHz to 110 GHz + Option 002: Rear Panel Input

ABB 1200 amp Type NS breaker 1200 amp trip unit Tested Guaranteed

Agilent 66319D 2 Output: 0-15V/0-3A & 0-12V/0-1.5A DC Power Supply with Voltmet

ABB ACS800-U1-0070-7+N650 Drive 525-690V WOW

Agilent N3280A 10V/ 0.5A Component Test DC Source

Agilent / HP 53150A CW Microwave Frequency Counter, 20 GHz

Agilent/ HP 83485A w 012,032 Optical Plug In Module for 86100A

Agilent N3300A 1800 Watt DC Electronic Load Mainframe

AGILENT / HP 53181A RF FREQUENCY COUNTER 10 digit/sec.

Agilent/Hewlett/Packard 8487D POWER SENSOR, AGILENT CALIBRATION INCLUDED

Agilent 16802A-101-102-111

ABB 3HNM 01868-1 Hollow Wrist Attachment TR 5002

Agilent HP E4445A PSA Spectrum Analyzer, 3 Hz - 13.2 GHz w/ B78, B7J, BAF

Aeroflex MiNT E1130 WiMax Signaling Unit

Agilent N5630B 10/100/1000 Electrical/Optical XS-2 Card - SFP

Agilent / HP 8594E Spectrum Analyzer with Opt 041, 101, 105 +

Agilent/HP N1996A CSA Spectrum Analyzer; 100kHz - 3GHz

Agilent 4294A Precision Impedance analyzer, 110MHz

ABB ACH550-VDR-022A-6 AC VARIABLE SPEED DRIVE 20HP/600V E-BYPASS MOTOR STARTER

Agilent J2127A 10Gb/s Transmission Test Set

Agilent - HP 83752A SYNTHESIZED SWEEPER

Agilent PREMIUM N9342C Handheld Spectrum Analyzer 100 kHz to 7 GHz

Agilent / HP N4692A Electronic Calibration Module (ECal) 10 MHz - 40 GHz, 2.92mm

ABB 3BSE018104R1 AC 800M Processor PM856 K01 XLNT PM856K01

Agilent HP 8922M GSM Test Set With 83220E For GSM 1900 Equipment Set Works

ABB AUTOMATION Machine Terminal REM543CM216AAAA

Agilent N4851A Serial Aquisition Probe

Agilent / HP 81642A 1510 to 1640 nm High Power Tunable Laser Source Module

Agilent/HP 8487A 50 GHz Power Sensor

Agilent 3048A

ABB 57520001-GZ PC BOARD 57520001GZ DSCA 180B

Agilent HP Hewlett Packard 8753C Network Analyzer & 85046A S-Parameter Test Set

AF2525GETBMB Square D I-Line Busway Tap 2500A 3PH 4W Aluminum - -

Agilent N9010A EXA Signal Analyer 9 KHz to 3.6 GHz OP: 503,EA3,FSA,P03 N9060-2FP

Agilent / HP 8753ES RF Network Analyzer 30kHz - 3GHz W/ OPT 011 UK6

AIO Duna 700 8" Square Wafer MEMs Photoresist SVG 8x Track Coater w Netrack SW

Agilent 54832D

ABB ACS600 MULTIDRIVE MODULE # ACN6340255500000300902

Agilent N1020A 6GHz TDR Probe with Calibration substrate

Agilent / HP 16346B Calibration Fixture for 4062 Series IC Component Test Set

Agilent U3025A E10 10MHz-50GHz Multiport Test Set Option 001

Agilent 11896A LIGHTWAVE POLARIZATION CONTROLLER

ABB 3HAB8101-6/01E DSQC346B Servo Drive Unit

Agilent HP E4404B Spectrum Analyzer, 100 Hz to 6.7 GHz

Aeroflex IFR 2023B Signal Generator

Agilent N5230A/025 300KHz-6GHz PNA-L Network Analyzer

Agilent HP E4406A VSA Transmitter Tester & WCDMA opt, BAF, Calibrated,

Aeroflex IFR 2026Q 10kHz -2.4GHz Signal Generator