述 I. Overview
专注于 电力电子 领域应用技术 的高新技术企业 ，多年来专业从 事同步发电机可控硅励磁 、 电动机可控硅励磁，电力 电子整流装置、电力 领域 工业控制 及自动化等，在电力电子应用领域 积累了成熟丰富的 经验， 可控硅控制技术及变流变频控制技术持续引领行业内核心控制算法及软件技术的创新，在多年的发展过程中， 欧立德 公司始终将创新作为产品应用与研发的源动力。 Wuhan Ouled Electric Co., Ltd. is a high-tech enterprise focusing on application technology in the power electronics field . He has accumulated mature and rich experience in the field of power electronics applications . Thyristor control technology and variable frequency control technology continue to lead the innovation of core control algorithms and software technologies in the industry. In the development process of many years, Olide has always taken innovation as a product Source of application and R & D.
低压发电机组综合控制屏 ( 以下简称 五合一 屏 ) ，是我公司针对 50KW ～ 1000KW 小型低压水轮发电机组的运行特点而开发的综合控制屏。 XES-01A series five-in-one low - voltage generator set integrated control screen ( hereinafter referred to as five-in-one screen ) is a comprehensive control screen developed by our company for the operating characteristics of 50KW ~ 1000KW small-scale low-pressure hydroelectric generating sets. It is a comprehensive control screen that integrates the primary circuit, metering, automatic synchronization, microcomputer protection control, and generator excitation of the low-voltage generator set. The control panel has the characteristics of compact structure, small footprint, easy operation and maintenance, high degree of automation, reliable operation, etc., and is widely used in various small generator sets.
XES-01A series five-in-one screen is designed, produced, manufactured and tested in accordance with the following national or industry standards. The technical performance and requirements all meet or partially surpass this standard.
GB14285-1993 "Technical Regulations for Relay Protection and Safety Automatic Devices";
GB / T7261-1987 "Basic test methods for relays and relay protection devices";
DL478-1992 "General technical requirements for static relay protection and safety automatic devices";
DL / T720-2000 "General technical requirements for relay protection cabinets and screens in power systems";
GB / T7267-1987 "Basic dimensions of secondary circuit control, protection screen and cabinet of power system";
GB7251.1-1997 "Low-voltage complete switchgear";
GB / T 14048.1-2000 "Low-voltage switchgear and control equipment";
GB 10585-89 "Basic Technical Conditions for Small and Medium-sized Synchronous Motor Excitation System";
Functions and Features
50KW ～ 1000KW l Applicable unit: 50KW ～ 1000KW
50KW ～ 1000KW 小型低压水轮发电机组。 Strong application ability, can be used for 50KW ~ 1000KW small low-pressure hydro-generator set. It is a cost-effective optimized product developed by our company based on long-term operating experience and user research, combined with current new technologies.
AC400V 220V l Rated working voltage: AC400V 220V
AC400V ± 20% 内长期稳定工作。 Ultra-wide adaptive voltage range, can work stably for a long time within AC400V ± 20% .
AC400/220V l Rated operating voltage: AC400 / 220V
AC400V 或 AC220V 。 Strong adaptability, the operating power can be arbitrarily selected according to the actual situation of the user AC400V or AC220V .
AC400/220V ，支持黑起励功能 l starting power: AC400 / 220V , support black starting function
/ 手动 l Synchronization mode: automatic quasi-synchronization / manual
The synchronization mode of this device includes automatic and manual; automatic quasi-synchronization mode. After the synchronization device automatically selects the synchronization point, it automatically controls the main circuit breaker to be connected to the network without human operation, and has high accuracy and automation. The manual mode is a standby operation mode of the automatic mode, and the traditional synchronization pointer table is adopted, and the operation is simple and intuitive. The application of these two methods greatly improves the reliability of the device and the convenience of use.
l Excitation mode: This device is suitable for the unit excitation mode is self-excitation mode. If required, a variety of other excitation methods are available.
+ 手动起励 l starting method: automatic starting + manual starting
l Demagnetization method: Linear demagnetization. This demagnetization method is simple and reliable. It is easy to use and maintain.
l Measurement meter: Relatively complete measurement system provides the following operating data measurement
B 相电流、 C 相电流、 COS φ、有功功率、发电机电压、 系统电压、频率、励磁电流 A- phase current, B- phase current, C- phase current, COS φ, active power, generator voltage, system voltage, frequency, excitation current
l Protection settings:
--- 当发电机电压超过装置所设整定值时，将跳开主断路器并灭磁。 Overvoltage protection --- When the generator voltage exceeds the setting value set by the device, the main circuit breaker will trip and demagnetize. Effectively prevent damage to the unit caused by overpressure.
--- 当发电机电流超过装置所设过流和延时整定值时，将跳开主断路器并灭磁。 Overcurrent protection --- When the generator current exceeds the overcurrent and delay settings set by the device, it will trip the main circuit breaker and demagnetize. Effectively prevent damage to the unit caused by overcurrent.
Overspeed protection: When the generator frequency exceeds the frequency set by the device, it will trip the main circuit breaker and demagnetize. Effectively prevent damage to the unit caused by overspeed.
The above parameters are set in the LCD screen parameters
l Main circuit breaker: universal circuit breaker
/ 合闸可靠、使用寿命长及完备的线路保护功能。 The circuit breaker has simple mechanical structure, strong breaking capacity, reliable opening / closing, long service life and complete line protection functions.
l Screen form: fully enclosed all-steel cabinet.
800(1000)mm × 600(800)mm × 2260mm ( 可定制 ) 。 l Screen body size: 800 (1000) mm × 600 (800) mm × 2260mm ( can be customized ) .
l Altitude does not exceed 2000 meters
不低于摄氏0℃ l The ambient temperature is not higher than 40 ° C and not lower than 0 ° C
l Relative humidity is not more than 90%
l No fire or explosion hazard
l No conductive dust and chemically corrosive gas in Egypt
l The vertical tilt does not exceed 10 degrees
Fourth, instructions for use
4.1 Description of the main components of the screen cabinet
XES-01A series five-in-one screen structure, the functions of each component are as follows (the English characters in the brackets at the end of each description indicate the corresponding electrical code)
1 . Meter:
l "Voltage": display generator voltage
l "Current": display generator current value
l "Synchronization voltmeter": manual synchronization table
l "Active power": display generator output power
l "Excitation current": display the excitation current value of the generator
2 ． Indicator light
） l "Excitation closing": Deactivation switch closing indication ( H1 )
） l "Excitation tripping": indication of closing of the extinction switch ( H2 )
） l "Excitation failure": Excitation failure indication ( H3 )
） l "Opening": Main circuit breaker opening instruction ( H4 )
） l "Close": the main breaker, that is, the exit switch of the generator ( H5 )
3 ． Button
l "Emergency Stop": used for manual trip and demagnetization in emergency situations
） l "Demagnetization": a button for demagnetization, press this button to excite the switch and develop the motor rotor to demagnetize ( MA )
4 . Transfer switch
） l "Synchronous control": switch for automatic and manual mode synchronization ( 2SA )
） l "Main circuit breaker": control the opening and closing of the main circuit breaker ( 1SA )
5 . Synchronization device
） l "Auto quasi-synchronization": automatic quasi-synchronization device, used for quasi-synchronization in parallel ( ZTQ )
l 6 . Alarm
Alarm signal: excitation failure alarm signal
l 7 . Control box
l For details, please refer to the excitation controller manual
l 8 . Main switch
QF5 ） l Generator grid disconnection switch ( QF5 )
l 9 . Isolating knife switch
DK ） Isolate the generator side from the grid side ( DK )
l 10 ． Field switch
QF4 ） l For switching generator excitation power supply ( QF4 )
4.2 Operation steps
l 1 . Boot
l 1 . 检查所有熔断器及空开处于投入状态，合上刀开关 DK ，合上励磁开关 QF4 ，屏柜上无报警指示 1 Check that all fuses and circuit breakers are in the on state. Close the knife switch DK and the field switch QF4 .
l 1 . 检查控制器控制无故障 2 Check that the controller control is not faulty
l 1 . 合上励磁开关 QF4 3Close the field switch QF4
l 1 . 转速到达额定转速后，如果发电机残压足够，励磁控制器显示发电机频率及残压，按励磁控制器上起励按钮发电机电压将会自动升到额定的 90 值； 4 After the speed reaches the rated speed, if the generator residual voltage is sufficient, the excitation controller displays the generator frequency and residual voltage. Pressing the start button on the excitation controller will automatically increase the generator voltage to the rated 90 value;
l 1 . 发电机电压起来后，检查控制器里的励磁参数是否与实际一致。 5 After the generator voltage is up, check whether the excitation parameters in the controller are consistent with the actual.
2 ． Grid connection process
l Automatic synchronization
“同期控制”转换开关投至“自动”位置。 l Adjust the generator voltage to be the same as the grid voltage, and then switch the "Synchronous Control" switch to the "Automatic" position. 后装置开始工作，同期装置将会快速捕捉第一次出现的合闸时机，发出同期合闸命令主开关闭合。 The power switch of the automatic quasi-synchronization device is put into operation. After about 2 seconds , the device starts to work. The synchronization device will quickly capture the first closing timing and issue a synchronous closing command to close the main switch. After the parallel connection is successful, the power of the synchronization device can be cut off or retained.
2 ． 手动同期并列 2 manual synchronization
“同期控制”转换开关投至“手动”位置。 l Turn the "Synchronous Control" switch to the "Manual" position. Adjust the generator voltage to the same as the grid voltage, adjust the generator speed and observe the position of the synchronizer. When the indicator light reaches the middle position, close the main switch unit in parallel
． 3 ． Grid operation
l After grid connection, it can be operated by selecting a constant power factor, and the excitation reactive power is automatically tracked to adjust the active power.
． 4 . Decommissioning process
0 左右，操作“主断路器”转换开关，分断主开关，机组解列完成 l First reduce the active and reactive power of the generator to about 0 , operate the "main circuit breaker" transfer switch, disconnect the main switch, and the unit is decommissioned.
l 5 . Generator shutdown
QF4 即可停机 l After dequeuing , press the de-excitation button to reduce the generator voltage to the minimum, and then turn off the excitation switch QF4 to stop.
Five, matters needing attention
l 1 . A 、 B 、 C （ U 、 V 、 W ）相序不允许接错 Wiring is clear, please strictly follow the drawings to access A , B , C ( U , V , W ) phase sequence is not allowed to connect wrong
l 2 . 630A 主断路器可直接合闸无需储能。 The main circuit breaker must be stored before closing. The 630A main circuit breaker can be closed directly without energy storage.
l 3 . It is strictly forbidden to plug or unplug the connector while it is under power.
l 4 . Do not operate the disconnect switch with load.
日常维护及常见故障的排除方法 Six, routine maintenance and troubleshooting methods
、常见故障及排除 6.1 Common faults and troubleshooting
l 1 . Unable to get excited
“起励”按钮采用外电源起励 Solution: Check whether the generator residual voltage is not enough. If it is not enough, manually press the "start" button to start the excitation with an external power supply.
l 2 . Excessive voltage or reactive power fluctuations
PID 参数到最优位置。 l Solution: Adjust the PID parameters to the optimal position.
l 3 . Unable to close the main switch
Solution: Check whether the switch has not stored energy first. If not, please store energy first.
l 4 . The operating circuit does not work
lSolution : Check whether each fuse is blown. If it is replaced, try it out.
6.2 Basic maintenance
一般不需要特别维护。 l This device has high reliability and generally does not require special maintenance. In the case of downtime, it is usually only necessary to pay attention to the following points :
l Check whether the inserted parts are loose.
l Clean the dust and foreign objects in the cabinet, especially the power devices, cables, and busbars, to eliminate the hidden dangers caused by short circuits, reduced insulation, and poor heat dissipation.
l Power on the regulator and check whether the switches and indicators are intact.
Contact: Mr. Huang
Mobile: + 86-18942948612
Phone: + 86-027-59200207
Address: Wuhan East Lake High-tech Development Zone, Wuhan University Science and Technology Park, Wudayuan 1st Road, 9-2