Description
DSQC609 DCS system
DSQC609 DCS system
Module Clips Drive controller servo motor
Contact: Mr. Lai
Wechat:17750010683
Whats app：+86 17750010683
Skype：+86 17750010683
QQ: 3221366881
3221366881@qq.com
What are the hazards of generator loss of excitation?
The impact of generator loss of excitation on the system mainly includes:
1. Low-excitation and loss-of-excitation generators absorb reactive power from the system and cause the voltage of the power system to decrease. If the reactive power reserve in the power system is insufficient, the voltage of some adjacent points in the power system will be lower than the allowable value, which will destroy the stable operation between the load and each power source, and even make the power system voltage collapse and collapse.
2. When a generator loses excitation, due to the voltage drop, other generators in the power system will increase their reactive output under the action of the automatic adjustment excitation device, thus causing some generators, transformers or lines to overcurrent, and their backup protection may misoperate due to overcurrent, thus expanding the scope of the accident.
3. After the loss of excitation of a generator, due to the swing of the active power of the generator and the drop of the system voltage, it may lead to the loss of step between the adjacent normal operation generators and the system, or between the various parts of the power system, causing the system to oscillate.
4. The larger the rated capacity of the generator, the greater the reactive power deficit caused by low excitation and loss of excitation, and the smaller the capacity of the power system, the smaller the ability to compensate for this reactive power deficit. Therefore, the greater the ratio of the unit capacity of the generator to the total capacity of the power system, the more serious the adverse impact on the power system.DSQC609 DCS system
The impact of generator loss of excitation on the generator itself mainly includes:
1. Due to the slip after the loss of excitation of the engine, the differential frequency current appears in the generator rotor circuit. The differential frequency current will cause loss in the rotor circuit. If it exceeds the allowable value, the rotor will overheat. In particular, the thermal capacity margin of large units with direct cooling and high power rate is relatively low, and the rotor is more prone to overheating. The differential frequency current on the surface of the rotor may also cause serious local overheating or even burns on the contact surface of the slot wedge and retaining ring of the rotor body.
2. After the loss-of-excitation generator enters the asynchronous operation, the equivalent reactance of the generator decreases, and the reactive power is absorbed from the power system. The greater the active power before the loss of excitation, the greater the slip, the smaller the equivalent reactance, and the greater the reactive power absorbed. After loss of excitation under heavy load, the generator stator will overheat due to overcurrent.
3. For large turbogenerators with direct cooling and high power rate, the maximum value of the average asynchronous torque is small, the inertia constant is also relatively low, and the rotor is also significantly asymmetric in the longitudinal and transverse axes. Due to these reasons, after loss of excitation under heavy load, the torque and active power of the generator will oscillate violently and periodically. For hydro-generators, due to the small maximum value of the average asynchronous torque and the asymmetry of the rotor in the longitudinal and transverse axes, a similar situation will occur when the generator is operated under heavy load. In this case, there will be a large or even exceeding rated motor torque periodically acting on the generator shaft system and transmitted to the base through the stator. At this time, the slip also changes periodically, its maximum value may reach 4%~5%, and the generator will periodically and seriously overspeed. These situations directly threaten the safety of the unit.
4. During loss-of-excitation operation, the magnetic leakage at the end of the stator will increase, which will overheat the components at the end and the iron core at the side.
ABB SCR module with drive board 3BHB003154R0101 high-voltage frequency converter power module
ABB ignition control card SCYC51020 control board 5761696-2D 58052582H
ABB motor protection REF601 CE446BB1NH feeder protection and measurement and control device inventory
ABB circuit board DSCA 130 MB200 module 57510001-AT/2 DSCA130 inventory
ABB circuit board card PFSK142 3BSE006505R1 PLC inventory module
ABB power module DSSR122M 48990001-LR rack power DSSR 122 M
ABB power module PFSA146 3BSE008844R1 PLC controller system inventory
ABB High Voltage Variable Frequency IGCT Module 5SHY3545L0009 Original Imported Spot
ABB high-voltage variable frequency thyristor GVC750BE101 imported IGBT inventory
ABB high-voltage frequency conversion module 336A4954ARP1 excitation control system original inventory
ABB high-voltage frequency conversion module 5SHY3545L0020 IGCT thyristor inventory
ABB high-voltage frequency conversion accessories 5SHY3545L0003 IGCT module 5SHY3545L0003 inventory
ABB high-voltage frequency converter module 5SHX1445H0001 IGCT thyristor imported with original packaging
ABB high-voltage frequency converter accessories 3BHE014105R0001 thyristor IGCT inventory
ABB high-voltage frequency converter accessories 5SHY3545L0006 original imported inventory
ABB high-voltage transformer module LXN1701-6G converter LXN17016G in stock
ABB High Voltage Control Board UAA326A02 HIEE300024R2 UA-A326-A02 Inventory
ABB high-voltage control accessories 5SHY3545L0004 thyristor module IGCT inventory
ABB high-voltage module 5SHY4045L0002 IGCT thyristor original imported inventory
ABB Industrial Automation Spare Parts PM825-1 Order No. 3BSE010800R1 Inventory
ABB Web tension system with tension electronic device PFEA111/112/113 PFEA11X
ABB rack RF522 3BSE000743R1 I/O framework module stock
ABB Robot Board DSCA121 57520001-U/3 Inventory Module DSCA 121
ABB Robot Air Control Unit ACU-01B 3HNA024871-001 Controller ACU01B
ABB Robot Control Board DSMC-110 57330001-N/4 Inventory DSMC110
ABB Relay Protector REF620 Digital Terminal Module Operation Screen Controller
ABB interface module CI854AK01-EA 3BSE030220R2 CI854A 3BSE030220R1
ABB Static Exciter Module UNS0881a-P.V2 3BHB006338R0002 Circuit Board
ABB web tension meter PFTL101BER-20.0KN 3BSE023161R1 force sensor
ABB thyristor circuit board 5SXE04-0150 GVC707AE01 high-voltage variable frequency control card inventory
ABB thyristor module 3BHB020720T0002 IGCT high-voltage accessories original imported inventory
ABB thyristor module 5SHX2645L0002 3HB012961R0001 5SHX 2645L0002
ABB thyristor module 5SHY3545L0001 high-voltage variable frequency original IGCT inventory
ABB thyristor module 5SHY3545L0005 excitation high-voltage control system inventory
ABB thyristor module 5SHY35L4510 original imported 5SHY series inventory
ABB thyristor module 5SHY4045L0006 3BHB030310R0001 PLC card IGBT
ABB thyristor module GVC714A101 order number 3BHB020538R0001 inventory
ABB Air Control Unit ACU-01 3HNA013719-001 Controller ACU01
ABB Control Processor Module DSPC172H 57310001-MP Control Board Inventory
ABB control panel CP6415 1SAP541510R0001 15 “touch screen 15 inch display screen
ABB control module CI865K01 CI865K01-eA base plate TP865 3BSE040795R1
ABB controller PM783F 3BDH000364R0002 base TB711F inventory PM 783F
ABB controller PM866AK01 3BSE050198R1 PM866A 3BSE093347K1
ABB controller board SCYC55830 system module 58063282A inventory
ABB controller unit PM858K02 3BSE082896R1 controller module PM858 inventory
ABB controller template AC 800PEC PPD539A102 Order number 3BHE039770R0102
ABB controller module 5SHX0660F0001 high-voltage variable frequency IGCT original imported inventory
ABB controller module CI856K01 3BSE026055R1 CI856 PLC in stock
ABB controller module DSDP451 57160001-X inventory DSDP 451
Abb controller module PM591-ETHA c2 1SAP150100R0170 CPU unit inventory
ABB control output module PFSK152 3BSE018877R2 3BSC980006R361 inventory
ABB control system module PM866A-2 3BSE081230R1 original imported inventory
ABB feeder protective relay REF610 1MRS050775 integrated protection REF 610 inventory
ABB Force Measurement PFCL201C-50.0KN 3BSE027070R50 Tensiometer
ABB excitation control module 5XSE02-138 IGBT thyristor 3BHE014105R0001 inventory
ABB Excitation Controller Template PPD113 Original Imported Inventory Automation Control Module
ABB connection unit PFSK109 PLC control board Lutec in stock
ABB pulse counting board DSDP150 57160001-GF positioning module DSDP-150
ABB pulse counting board DSDP160 57160001-KG PLC DSDP 160 module
ABB module PFSK130 3BSE002616R1 channel control board inventory PFSK 130
ABB module PM820-2 3BSE010798R1 PLC controller board inventory
ABB memory board DSMB125 57360001-AN/3 ASEA robot memory circuit board
ABB drive board SCYC51090 PLC module 57617276-C 58053899
ABB Sweden UAC346AE01 HIEE300831R0001 Board Circuit Board Inventory
ABB shooting unit card SCYC51010 ignition unit SCYC 51010 inventory
ABB Digital Output Module DSDO115A 3BSE018298R1 Control Board Card Inventory
ABB Digital Input Board DSDI110AV1 3BSE018295R1 Safety Input Module Inventory
ABB Digital Input Module DSDI146 3BSE007949R1 Safety Card Inventory
ABB Digital Terminal REF620E-1G FNBFNAAAANDA1BNN1XF Inventory
ABB Twisted Pair Modem TC512V1 3BSE018059R1 Efficient PP3304
ABB twisted pair modem TC516 3BSE012632R1 RS485 module
ABB horizontal weighing sensor PFTL101AE-0.5KN 3BSE004211R1 for paper machines
ABB communication module DSCS131 57310001-LM controller board DSCS 131 inventory
ABB communication module DSCS140 57520001-EV in stock in the same series DSCS 140
ABB communication box PU412 3BSE056479R1 RTA board MB300 PLC module
ABB communication interface module CI520V1 3BSE012869R1 CI520V1 inventory
ABB communication interface module CI810A 3BSE013262R1 PLC brand new inventory
ABB communication interface module CI853K01 3BSE018103R1 CI853 inventory
ABB communication interface module CI858K01 3BSE018135R1 CI858 PLC system
ABB communication interface module CI860K01 3BSE032444R1 PLC CI860 module inventory
ABB communication module CI801-EA 3BSE013262R1 PLC brand new CI801 inventory
ABB communication module CI820V1 3BSE025255R1 CI820 PLC system
ABB communication module CI830 020773R1301 013252R1 CI830S 3BSE013252R1
ABB communication module CI857K01 3BSE018144R1 CI857 PLC inventory
ABB communication module CI862K01 3BUA00037R1 CI862 PLC stock
ABB communication module CI867K01 (CI867+base TP867) 3BSE043660R1
ABB communication module CI867K01-EA 3BSE043660R2 CI867 CI867AK01 inventory
ABB Network Process Module INNPM12 Process Board Bailey Symphony Inventory
ABB system control board SCYC55830 PLC board 58063282A inventory
ABB System Control Board SCYC51040 Original 58052680E Inventory
ABB system status collector TC520 3BSE001449R1 collection card
ABB Display PP245 PROCESS PANEL 245 3BSC690103R1 Process Panel
ABB Field Controller PM803 ML1310 AC800F System PLC Module Inventory
ABB pressure measurement PFTL101AER-2.0KN 3BSE023012R1 tension control gauge
ABB pressure sensor PFCL201CE-10.0KN 3BSE027062R10 PFCL series
ABB pressure sensor PFCL201C series 3BSE027070R5 PFCL201C-5.0KN
ABB pressure sensor PFTL201C-20KN 3BSE027070R20 tension gauge
ABB pressure controller PFTL101BER-10.0KN 3BSE023160R1 paper tension control
ABB Paper Measurement PFCL201CE-50.0KN 3BSE027062R50 Tension Controller
ABB Paper Tension Measurement PFTL101AER-1.0KN 3BSE023011R1 Pressure Controller
ABB tension measurement PFTL101AER-0.5KN 3BSE023010R1 weighing sensor inventory
ABB tension measurement unit PFCL201CD-5.0KN 3BSE029774R5 inventory
ABB tension electronic control PFEA112-20 3BSE030369R0020 inventory
ABB Tensiometer PFCL201CD-20.0KN 3BSE029774R20 Tension Control System
ABB tension meter PFCL201CE-20.0KN 3BSE027062R20 tension controller
ABB tension meter PFTL101AE-2.0KN 3BSE004213R1 pillow type sensor
Company advantage service:
1.Has been engaged in industrial control industry for a long time, with a large number of inventories.
2.Industry leading, price advantage, quality assurance
3.Diversified models and products, and all kinds of rare and discontinued products
4.15 days free replacement for quality problems
1.Has been engaged in industrial control industry for a long time, with a large number of inventories.
2.Industry leading, price advantage, quality assurance
3.Diversified models and products, and all kinds of rare and discontinued products
4.15 days free replacement for quality problems
All kinds of module card driver controller servo motor servo motor embedded card wires and cables Power module control module is applicable to steel, hydropower, nuclear power, power generation, glass factory, tire factory, rubber, thermal power, paper making, shipping, navigation, etc
ABB — AC 800M controller, Bailey, PM866 controller, IGCT silicon controlled 5SHY 3BHB01 3BHE00 3HNA00 DSQC series
BENTLY — 3500 system/proximitor, front and rear card, sensor, probe, cable 3500/20 3500/61 3500/05-01-02-00-001 3500/40M 176449-01 3500/22M 138607-01
Emerson — modbus card, power panel, controller, power supply, base, power module, switch 1C31,5X00, CE400, A6500-UM, SE3008,1B300,1X00,
EPRO — PR6423 PR6424 PR6425 PR6426 PR9376 PR9268 Data acquisition module, probe, speed sensor, vibration sensor
FOXBORO — FCP270 FCP280 FCM10EF FBM207 P0914TD CP40B FBI10E FBM02 FBM202 FBM207B P0400HE Thermal resistance input/output module, power module, communication module, cable, controller, switch
GE —- IS200/215/220/230/420 DS200/215 IC693/695/697/698 VMICPCI VMIVME 369-HI-R-M-0-0-E 469 module, air switch, I/O module, display, CPU module, power module, converter, CPU board, Ethernet module, integrated protection device, power module, gas turbine card
HIMA — F3 AIO 8/4 01 F3231 F8627X Z7116 F8621A 984862160 F3236 F6217 F7553 DI module, processor module, AI card, pulse encoder
Honeywell — Secure digital output card, program module, analog input card, CPU module, FIM card
MOOG — D136-001-007 Servo valve, controller, module
NI — SCXI-1100 PCI – PXIE – PCIE – SBRIO – CFP-AO-210 USB-6525 Information Acquisition Card, PXI Module, Card
Westinghouse — RTD thermal resistance input module, AI/AO/DI/DO module, power module, control module, base module
Woodward — 9907-164 5466-258 8200-1300 9907-149 9907-838 EASYGEN-3500-5/P2 8440-2145 Regulator, module, controller, governor
YOKOGAWA – Servo module, control cabinet node unit
Main products:
PLC, DCS, CPU module, communication module, input/output module (AI/AO/DI/DO), power module, silicon controlled module, terminal module, PXI module, servo drive, servo motor, industrial display screen, industrial keyboard, controller, encoder, regulator, sensor, I/O board, counting board, optical fiber interface board, acquisition card, gas turbine card, FIM card and other automatic spare parts
ABB — AC 800M controller, Bailey, PM866 controller, IGCT silicon controlled 5SHY 3BHB01 3BHE00 3HNA00 DSQC series
BENTLY — 3500 system/proximitor, front and rear card, sensor, probe, cable 3500/20 3500/61 3500/05-01-02-00-001 3500/40M 176449-01 3500/22M 138607-01
Emerson — modbus card, power panel, controller, power supply, base, power module, switch 1C31,5X00, CE400, A6500-UM, SE3008,1B300,1X00,
EPRO — PR6423 PR6424 PR6425 PR6426 PR9376 PR9268 Data acquisition module, probe, speed sensor, vibration sensor
FOXBORO — FCP270 FCP280 FCM10EF FBM207 P0914TD CP40B FBI10E FBM02 FBM202 FBM207B P0400HE Thermal resistance input/output module, power module, communication module, cable, controller, switch
GE —- IS200/215/220/230/420 DS200/215 IC693/695/697/698 VMICPCI VMIVME 369-HI-R-M-0-0-E 469 module, air switch, I/O module, display, CPU module, power module, converter, CPU board, Ethernet module, integrated protection device, power module, gas turbine card
HIMA — F3 AIO 8/4 01 F3231 F8627X Z7116 F8621A 984862160 F3236 F6217 F7553 DI module, processor module, AI card, pulse encoder
Honeywell — Secure digital output card, program module, analog input card, CPU module, FIM card
MOOG — D136-001-007 Servo valve, controller, module
NI — SCXI-1100 PCI – PXIE – PCIE – SBRIO – CFP-AO-210 USB-6525 Information Acquisition Card, PXI Module, Card
Westinghouse — RTD thermal resistance input module, AI/AO/DI/DO module, power module, control module, base module
Woodward — 9907-164 5466-258 8200-1300 9907-149 9907-838 EASYGEN-3500-5/P2 8440-2145 Regulator, module, controller, governor
YOKOGAWA – Servo module, control cabinet node unit
Main products:
PLC, DCS, CPU module, communication module, input/output module (AI/AO/DI/DO), power module, silicon controlled module, terminal module, PXI module, servo drive, servo motor, industrial display screen, industrial keyboard, controller, encoder, regulator, sensor, I/O board, counting board, optical fiber interface board, acquisition card, gas turbine card, FIM card and other automatic spare parts
