Description
UFC719AE101 3BHB003041R0101 DCS system
UFC719AE101 3BHB003041R0101 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
Phenomenon of generator leading phase operation_ Hazards of generator leading phase operation
Reduce the generator excitation current, reduce the generator potential, and the power factor angle will become advanced. The generator load current will generate the magnetic armature reaction. The generator will transmit active power to the system, but absorb reactive power. This operation state is called leading phase operation.
Phenomenon of generator leading phase operation
1. The excitation current is greatly reduced;
2. Generator stator voltage decreases;
3. The reactive load of the generator becomes negative.
Hazards of generator leading phase operation
1. Increasing the active load of the generator will make the generator develop in an unstable direction, which is easy to cause unstable operation of the generator and even system oscillation accidents.UFC719AE101 3BHB003041R0101 DCS system
2. Continue to reduce the excitation current of the generator and increase the depth of the generator leading phase, which may cause the generator loss of excitation protection action or the generator unstable operation.
3. When the generator is in phase leading operation, the stator current increases and the stator heating increases. The change ratio of the leakage flux at the end of the stator increases, making the end heating the most serious, and the temperature of the generator stator coil will continue to rise.
4. When the generator is in phase leading operation, the generator outlet voltage is reduced, resulting in the reduction of 6KV bus voltage. The high-voltage motor with low-voltage protection will trip. The electrical equipment in operation will heat up due to the reduction of bus voltage and the increase of current, and the insulation of the equipment will be damaged if it is operated for a long time.
When the generator is in leading phase operation. The magnetic leakage at the end of the stator increases when it is operated in a later phase. In particular, the line load of large generators is high, and the end magnetic leakage is relatively large during normal operation. The end core pressure refers to the temperature rise of the connecting piece. During the leading phase operation, the temperature rise is aggravated due to the increase of magnetic leakage. Therefore, when the generator terminal voltage is reduced during leading phase operation, the auxiliary power voltage is also reduced accordingly. If it exceeds 10%, the auxiliary power operation will be affected.
Therefore, the leading phase operation depth of synchronous generator shall be determined by test, that is, how much reactive power can be absorbed to maintain the static stability and transient stability of the system under a certain active power supply state, and the temperature rise of each component shall not exceed the limit, and can meet the voltage requirements.
When the inductive reactive power supplied by the system is more than required, the system voltage will rise, and the generator is required to generate less reactive power or even absorb reactive power. At this time, the generator can change from delayed phase operation to leading phase operation.
Precautions for leading phase operation of generator
1. Check that the generator excitation regulator should operate in automatic mode, and the low excitation limit function of the generator excitation regulator and the generator excitation loss protection should be put into operation normally. Check that the speed control system is flexible and free of jamming.
2. The leading phase depth of the generator shall be adjusted according to the command of the shift supervisor. If the generator automatically leads to phase due to high voltage on the network, the monitoring of all parameters of the generator shall be strengthened, and the report shall be reported to the superior in time.
3. When increasing or decreasing the excitation of the generator, the speed should be slow, and it is not allowed to adjust rapidly and greatly. The limit value of the leading phase operation should be controlled within the specified range, and it should always be less than the limit action value of the low excitation.
4. When lowering the excitation of the generator, if the low excitation limiter acts, immediately stop lowering the excitation of the generator, and properly increase the excitation of the generator to ensure that all parameters of the generator are within the normal range.
5. Pay attention to monitor the static stability of the generator. The indication of each meter of the generator is normal and there is no oscillation. Check that the sound of the generator is normal to prevent the generator from out of step or oscillation.
6. The temperature rise at the end of the stator core of the generator shall be closely monitored to prevent overheating of the generator. The temperature at the end of the core shall not exceed 120 ℃ and the temperature of the copper shield shall not exceed 120 ℃.
7. In case of obvious swing of active and reactive power of other operating units, the excitation current of the leading phase generator shall be increased immediately, and the shift supervisor shall be reported at the same time to recover the delayed phase operation of the generator.
8. If the 6kV main auxiliary equipment fails or needs to be switched, apply to the middle note to stop the generator in leading phase operation, restore the late phase operation state of the generator, and prevent the 6kV and 400V auxiliary voltage from being too low, protection action or tripping of some 400V equipment due to the large reactive load absorbed by the equipment during startup and shutdown.
9. In case of equipment failure, when it is necessary to reduce the load and eliminate defects, immediately apply for middle note to stop leading phase operation, and then apply for leading phase operation after the standby group resumes normal operation.
GE DS200DCFBG1BKC Multilin含外壳 机器人系统模块GE DS200CVMAG3ACB 以太网CPU模块 进口电气产品GE DS200CVMAG1A MULTILIN CT/VT转换模块 机器人系统模块GE DS200CTBDG1A 通用继电器 工控备件模块库存GE DS200CSSAG1B 直流电源和仪表板 雄霸供应GE DS200CDBAG1BBB Boards 局域网通信卡 进口电气产品GE DS200CDBAG1B 主机驱动器提供LAN CPU模块GE DS200ADPBG1A Mark V板系列 工控备件模块库存GE DS200ADMAH1A 网络通讯控制板 库存货品GE Boards 局域网通信卡 DS200SLCCG1AEE 为主机驱动器提供LANGE 750系列 SR750-P5-G5-S5-HI-A20-R-T 馈线保护继电器 库存GE 650系列继电器保护装置 F650 G650 W650 控制与监视系统GE 531X309SPCAHG1 多路UR模块 进口电气产品GE 531X308PCSAEG2 伺服控制器 自动化机械备件GE 531X308PCSABG2 网络稳定 工控备件模块库存GE 531X308PCSAAG1 发电机管理继电器 工控卡件模块GE 531X307LTBAKG1 Ur控制器模块 进口工控备件GE 531X307LTBADG1 与旧版本MultilinCPU模块匹配 全系列GE 531X306LCC-BFM1 Multilin 信号转换模块 停产备件GE 531X306LCC-BCG3 Rev C 燃机卡 CPU模块GE 531X304IBDASG1 继电器模块 雄霸供应GE 531X303MCPBCG1 GTC控制方案 自动化机械备件GE 531X302DCIABG3 电流互感器 雄霸供应GE 531X301DCCAGG Multilin Ur控制器模块 全系列GE 531X300CC-HAXM3 CPU 处理器模块 停产备件GE 531X300CC-HATM3 MPU50 控制器 进口电气产品GE 531X300CC-HANM3 CPU模块 自动化机械备件 I/O适配器板GE 531X300CCHAHM3 数字量扩展模块 雄霸供应GE 531X300CCHAGM2 涡轮控制系统模块 进口工控备件GE 531X300CC-HAFMS 燃机卡 涡轮控制模块 进口电气产品GE 531X300CC-HAFM5 CPU电路板模块 CPU模块GE 531X300CC-HAEM5 Multilin含外壳 机器人系统模块GE 531X300C0MAAM5 Mark V 局域网通讯卡 库存有货GE 531X210DMCABM1 MULTILIN CT/VT转换模块 机器人系统模块GE 531X175SSBAYM2 涡轮控制模块 自动化机械备件GE 531X170TBSAGG1 网络通讯控制板 库存货品GE 531X161PRTABG1 电路板 停产备件GE 531X139APMAPG2 Multilin 校准模块 工控备件模块库存GE 531X139APMAMM7 UR模块 进口工控备件GE 531X139APMAMG2 CT/VT单元 库存有货GE 531X139APMAEG2 6G数字控制 I/O 工控备件模块库存GE 531X134EPRBEG1 multilin UR控制模块 CPU模块GE 531X133PRUAPGI multilin UR模块 自动化机械备件GE 531X133PRUAKG1 RS485继电器系列 库存有货GE 531X133PRUAJGI 安全控制器模块 雄霸供应GE 531X126SNDABG2 电压互感器模块 工控卡件模块GE 531X124MSDAGG1 Multilin Ur控制器模块 进口工控备件GE 531X124MSDADG1 CPU 处理器模块 库存有货GE 531X116SHAAAG2 电动机保护器 全系列GE 531X111PSHAWG2 SD200系列模块 库存 工控备件模块库存GE 531X111PSHASG2 DC2000驱动器 库存有货GE 531X111PSHAKG3 DC2000驱动器接口板 工控卡件模块GE 531X102CC-HAEM2 美国通用模块 工控备件模块库存GE 489-P5-LO-A20 电压互感器模块 CPU模块GE 469-P1-HI-A20-T-H GTC控制方案 进口工控备件GE 369-LO-R-0-0-0-0 电压反馈缩放板 停产备件GE 369-HI-R-M-F-E-0 通讯卡件 机器人系统模块GE 369-HI-R-B-F-E-H-E 电机管理继电器 369-HI-RBFE-0-EGE 369HI-R-0-0-0-0-E UR模块 自动化机械备件GE 369-HI-R-0-0-0 CT/VT单元 机器人系统模块GE 350E-P5-G5-H-E-E-N-P-2E-D-N 继电保护器 DCS进口备件GE 0880001-01 燃机卡 涡轮控制模块 工控备件模块库存GE 07556D15G0001 PPG处理器模块 雄霸供应GE 0621L0450-G001 现场控制 库存货品GE VMIVME-5565-010 控制系统模块 进口工控备件GE VMICPCI-7806-211000 350-657806-211000 控制系统模块GE SR750-P5-G5-S5-H-I-A20-R 继电保护器 继电保护装置GE IS200UCVGH1A PLC系统模块 热燃机卡件P0916MZ通道隔离、脉冲输入S72402-NANANA KOLLMORGEN科尔摩根 伺服驱动器全新有光盘R82SSNA-NP-RM-NV-02 伺服电机 全新原装 价格美丽R-TPD3 / ECS 通用电气GE 电路板
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
