Description
3BSE018741R30 Robot control card
3BSE018741R30 Robot control card
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.3BSE018741R30 Robot control card
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直流电源反馈板 DS200DCFBG1BKC
UR1HH电源模块 美国GE通用电气全系列出售
369-HI-RM-0-E-0-E | GE Multilin | 369 电机管理继电器
GE DOS DUP 处理器DS200DMCBG1AED DS215DMCBG1AZZ03A
GE通信板 DS200SLCCG1AFG DS215SLCCG1AZZ01A
VMIVME-4116 美国GE通用电气
GE Fanuc | IS220PDIOH1B 输入模块
GE电气RX7i 系列1.8 MHz CPU处理器IC698CRE040-HN
V7768-322001 GE Fanuc控制模块原装出售
GE Fanuc | IS200VSVOH1B 伺服控制板
GE Fanuc CPU处理器模块IC695CRU320
GE Fanuc PLC模块 IC660HHM501N
GE HYDRAN M2变压器监测设备
GE VMIC VMIVME-7750-744000 反射内存节点卡库存
8851-LC-MT | GE Fanuc SafetyNet 控制器
GE电气RX7i 系列1.8 MHz CPU处理器IC698CPE040-JP
GE Fanuc | IC698RMX016 VMIVME-5567-100 冗余内存交换模块
美国GE通用电气D20 EME 10BASE-T变电站控制器模块
GE Fanuc | IS200BPVCG1BR PLC模块
GE输入输出卡 DS200SDCCG1AGD DS215SDCCG1AZZ01B
VME7740-841 GE Fanuc控制模块原装出售
GE PAC8000混合控制器8521-HC-MT
SD-98762 101-098762-001 GE通用电气
美国GE通用电气 AT686W控制器模块
SR469-P5-HI-A20-E | GE Multilin | 469 电机保护继电器
8920-PS-DC GE PAC8000本质安全模块直流电源
GE直流电源反馈板 DS200DCFBG1B
GE通用电气 0880001-01 DCS模块
GE PLC模块 EPSCPE100-ABAC型号库存优势供应
VMIVME-3122-210 VMIVME3122 美国GE通用电气
Kollmorgen 智能模拟数字驱动器 MMC-SD-3.0-230-D MMC-SD系列
GE Fanuc | IS220PDIAH1B 输入模块
DS200LDCCH1ALA GE板和涡轮机控制卡
GE Fanuc | IS215ACLEH1A Mark VI 印刷电路板
GE电气RX7i 系列1.8 MHz CPU处理器GE IC698CRE040
GE VMIC VMIVME-7750-466000 反射内存节点卡
GE Fanuc | IS200TRLYH1BGF PLC模块
GE Fanuc | IS210AEDBH4AGD Mark VI 印刷电路板
GE卡件VME7807RC350-00780-411000 VMIVME7807-411000
SR469-P1-HI-A20-E | GE Multilin | 469 电机管理继电器
VME162PA344SE GE Fanuc控制模块原装出售
MPU51 (369B1860G0028) GE通用电气模块
GE Fanuc | IS200VCMIH2BEE 印刷电路板
GE电气IC698PSA100 多功能电源模块
GE电气IC698ETM001 以太网接口模块
GE Fanuc PLC模块 IC690RFH008
GE Fanuc ▏RX7i 系列CPU模块IC698CPE030
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
