Description
IC694ALG392 General Electric
IC694ALG392 General Electric
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 excitation modes of generator_ Three generator excitation modes
Excitation system principle
Excitation device refers to the electrical control device that can control and regulate the excitation current in the excitation system of synchronous generator, except for the excitation power supply. Excitation system is an indispensable part of power station equipment. The excitation system includes excitation power supply and excitation device, wherein the main body of excitation power supply is exciter or excitation transformer; The excitation device is composed of regulating panel, control panel, deexcitation panel and rectifier panel according to different specifications, models and use requirements.
The use of excitation device is to maintain the terminal voltage of synchronous generator at a given level when the power system is working normally. At the same time, it also has the functions of forced excitation increase, excitation reduction and deexcitation. Rectification function is also available for those using excitation transformer as excitation power supply. The excitation device can be provided separately or as a complete set of power generation equipment.
Composition of excitation system
Organic terminal voltage transformer, generator terminal current transformer and excitation transformer are the components of automatic excitation regulation; The excitation device needs to provide the following current: auxiliary AC380v and auxiliary DC220V control power supply. Auxiliary DC220V closing power supply; The following empty contacts shall be provided for automatic startup. Automatic shutdown. Increase and decrease of grid connection (one normally open and one normally closed); The following analog signals need to be provided: the generator terminal voltage is 100V, the generator terminal current is 5A, the bus voltage is 100V, and the excitation device outputs the following relay contact signals; Excitation transformer overcurrent, loss of excitation, abnormal excitation device, etc.IC694ALG392 General Electric
Excitation control, protection and signal circuit are composed of deexcitation switch, auxiliary circuit, fan, deexcitation switch tripping, excitation transformer overcurrent, regulator fault, generator abnormal condition, power transmitter, etc. In case of internal failure of the synchronous generator, in addition to the disconnection, it is also necessary to de-excitation, reduce the rotor magnetic field to the minimum as soon as possible, and shorten the de-excitation time as far as possible under the condition that the rotor cannot pass, which is the main function of the de-excitation device. According to the rated excitation voltage, it can be divided into linear resistance deexcitation and nonlinear resistance deexcitation.
Three ways for generator to obtain excitation current
1. Excitation mode of DC generator power supply
The generator with this excitation mode has a special DC generator. This special DC generator is called a DC exciter. The exciter is generally coaxial with the generator. The excitation winding of the generator obtains DC current from the exciter through the slip ring and fixed brush installed on the main shaft. This excitation mode has the advantages of independent excitation current, reliable operation and reduced consumption of self-use electricity. It is the main excitation mode of generator in the past few decades and has relatively mature operating experience. The disadvantage is that the excitation regulation speed is slow and the maintenance workload is large, so it is rarely used in units above 10MW.
2. Excitation mode of AC exciter power supply
Some generation of large-capacity generators use AC exciter to provide excitation current. The AC exciter is also installed on the main shaft of the generator, and its output AC current is supplied to the generator rotor for excitation after rectification. At this time, the excitation mode of the generator belongs to the separate excitation mode. Because the static rectifier device is used, it is also called the separate excitation static excitation, and the AC auxiliary exciter provides the excitation current. The AC auxiliary exciter can be a permanent magnet machine or an alternator with self-excited constant voltage device. In order to improve the excitation regulation speed, AC exciter usually uses 100-200HZ intermediate frequency generator, while AC auxiliary exciter uses 400-500HZ intermediate frequency generator. The DC excitation winding and three-phase AC winding of the generator are all wound in the stator slot. The rotor has only teeth and slots, but no winding. It is like a gear. Therefore, it has no rotating contact parts such as brushes and slip rings. It has the advantages of reliable operation, simple structure and convenient manufacturing process. The disadvantage is that the noise is large, and the harmonic component of the AC potential is also large.
3. Excitation mode without exciter
In the excitation mode, no special exciter is set, but the excitation power is obtained from the generator itself, and then supplied to the generator itself for excitation after rectification, which is called self-excited static excitation. Self-excited static excitation can be divided into self-shunt excitation and self-compound excitation. The self-shunt excitation mode obtains the excitation current through the rectifier transformer connected to the generator outlet and supplies the generator excitation after rectification. This excitation mode has the advantages of simple structure, less equipment, less investment and less maintenance workload. In addition to no rectification and voltage transformation, the self-recovery excitation mode is also equipped with high-power current transformers connected in series in the generator stator circuit. The function of this transformer is to provide large excitation current to the generator in case of short circuit, so as to make up for the shortage of rectifier transformer output. This excitation mode has two excitation power sources: voltage power source obtained through rectifier transformer and current source obtained through series transformer.
GE通用IS230TNSVH3A特价销售
GE通用电气 IC640WMI910厂家直销
GE通用IC697ALG230 特价销售
GE通用IC697MEM717 CPU模块
GE通用DS200SDCIG1AGB厂家直销
GE通用电气 IC651ENS042模块现货
GE通用IC697BEM741 特价销售
GE通用IC697MDL651 库存现货
GE通用电气 IS420UCSCS2A库存现货
GE通用IC697MDL740特价销售
GE通用IC697CPM790-GD 厂家直销
GE通用IC697RCM711厂家直销
GE通用电气 IC660SLA023模块现货
GE通用IC697MDL341 特价销售
GE通用IS200TBCIH2CAA库存现货
GE通用电气 VMIVME-4116厂家直销
GE通用IS200TPROS1CBB特价销售
GE通用电气 IC647CBL753模块现货
GE通用IC697CPU782特价销售
GE通用电气 IC660SLA101模块现货
GE IC693CPU374 模块价格优惠
GE通用DS200TCDAH1BHE厂家直销
GE通用IC697ACC644厂家直销
GE通用IC697ACC715厂家直销
GE通用电气 VMIVME-7698-345模块现货
GE通用IS200VAICH1D特价销售
GE通用IC697PWR720 厂家直销
GE通用369-HI-R-M-0-0-0-0
GE通用IS215UCVEH2AE燃机卡模块
GE通用IC697MDL253 CPU模块
GE通用 UR8BV模块特价
GE通用IC697VAL318 特价销售
GE通用电气 VMICPCI-7806厂家直销
GE通用DS200TCDAH1BJE厂家直销
GE通用IS200TPROH1C CPU模块
GE通用IS220PRTDH1A库存现货
GE通用IC697CHS782 特价销售
GE通用IC697VAL306 CPU模块
GE通用IC697LBR701 库存现货
GE通用DS200SIOBH1ABA厂家直销
GE通用IC697ACC728 CPU模块
GE通用 UR6EV模块特价
GE通用电气 IC693CMM321处理器模块
GE通用IC697MDL753 库存现货
750-P5-G5-S5-HI-A20-R 馈线管理继电器GE Multilin模拟输出
GE通用电气 IC693ALG223库存现货
GE通用IC697VAL301 库存现货
GE通用369-HI-0-M-0-0-0
GE通用IC697HSC700 厂家直销
GE通用IS220PTURH1A处理器模块
GE通用DS200LDCCH1ANA厂家直销
GE通用IS220PRTDHIA处理器模块
GE通用IC697VAL216 特价销售
GE通用IS200BAIAH1BEE库存现货
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
