Xu Ji WFB-801A, WFB-802A, WBH-801A power supply WKB-851, WDLK-862 microcomputer generator protection measurement and con

Xu Ji WDLK-862 microcomputer circuit breaker protection measurement and control device


WDLK-862A-G circuit breaker protection device, according to the standard of Q / GDW1161-2014 Line Protection and auxiliary Device, follows the six-part unified principle of functional configuration, circuit design, terminal row layout, interface standard, screen cabinet plate and protection value (report format).


Xu Ji WDLK-862 microcomputer circuit breaker protection measurement and control device
2. Product characteristics
Logic development visualization all protection software in the unified software platform using VLD visualization logic programming tool implementation, protection source code is completely automatically generated by the software robot, the correct rate reaches 100%, to eliminate the human cause of software Bug.Protection logic all consists of basic algorithms, logical functional elements, or components.Through the hierarchical, modular and component design, the device realizes three-level monitoring points of component level, module level and bus level, which can monitor the data of any point inside the device. After the accident occurs, the fault can be be quickly and accurately out through the transparent accident analysis tool.The hardware of the device is equipped with a large capacity memory chip, which can record the action of the internal components of a whole failure protection process, and achieve the whole playback of the accident waveform.
The whole life cycle state monitoring 800 series protection device has comprehensive software and hardware self-inspection and protection functions. During the operation of the protection device, it periodically conducts the self-inspection of each component on the CPU plug-in, monitors the working state of the power plug-in in real time, and sends various self-inspection information to the monitoring system in time.Reliable anti-interference measures are limited to the current electronic transformer technology development and application level, for the application of various abnormalities can lead to the protection of simulated data interference, protection device through the time domain identification and frequency domain analysis method can effectively avoid abnormal operation of abnormal data protection.The successful application of human man-machine interface XJ-GUI and field debugging guide reduces the working intensity of field maintenance and operation personnel, and makes the operation and maintenance work easy.?8? 5 With the help of XJ-GUI interface design tools, to realize the flexible customization and humanized design of the operation interface;?8? 5 Main wiring diagram and rich real-time data display;?8? 5 WINDOWS menu, through menu prompt, can complete the operation of the device.


Xu Ji WDLK-862 microcomputer circuit breaker protection measurement and control device
applied range
WDLK-862A-G protection device is a microcomputer realized digital circuit breaker protection device, used as 3 / 2 wiring of voltage grade 220kV and above and angular wiring circuit breaker protection.The device follows the Q / GDW1161-2014 Standard Design Code for Line Protection and Auxiliary Devices standard, and the functional configuration interface and protection value (report format) are designed in accordance with this standard.The protection device provides status monitoring information and supports status maintenance function.
1.2 Protection configuration
WDLK-862A-G circuit breaker protection device includes circuit breaker failure protection, dead area protection, three-phase inconsistent protection, charge overcurrent protection and comprehensive reclosing functions.
1.3 Protection characteristics
? 8? 5 Adopt high performance, reliable and powerful new generation hardware platform, 16-bit high precision AD, floating point computing 32-bit DSP, fully consider redundancy and function expansion, multi-DSP work together to complete the main backup protection function;?8? 5. Memory content "log system" and protection logic information "black box" record to achieve the rapid and accurate positioning of abnormal conditions;?8? 5 The device adopts the overall panel, standard 6U chassis, plug-in after the plug, strong and weak electric circuit strictly separated, greatly improve the anti-interference ability of the device;?8? 5 Chinese class WINDOWS design style, friendly man-machine interface, Chinese character display, Chinese report printing.?8? 5 Flexible communication interface configuration, can provide 3 sets of communication interfaces (including Ethernet or RS-485 communication interface), debugging interface, printer interface, timing interface.

Xu Ji WDLK-862 microcomputer circuit breaker protection measurement and control device

Xuji WBH-801A microcomputer transformer protection monitoring and control device

Supply the power plug-in of Xuji WFB-802A microcomputer generator protection measurement and control device
WFB-800 series micro-variable set protection device is mainly suitable for the protection of main power system.WFB-801 integrates all the electrical protection of a generator, WFB-802 integrates all the electrical protection of a main transformer, WFB-803 integrates all the electrical protection of a high plant transformer and excitation transformer (exciter), and WFB-804 integrates all non-power protection of a main transformer and high plant transformer.It can meet the completely independent configuration requirements of double main protection, double backup protection, non-power protection and non-power protection.At the same time, the series of protection can also be directly connected to the power plant's integrated automation system.


Supply the power plug-in of Xuji WFB-802A microcomputer generator protection measurement and control device
1,600 (300) MW-500kV-transformer unit main protection configuration: generator longitudinal differential protection, generator interturn protection (transverse difference protection or negative order incremental direction locking longitudinal zero order voltage protection), main variable differential protection, power variable group differential protection, high plant variable differential protection, exciter (transformer) differential protection.
2,  600 (300) MW-500kV turbine generator-transformer unit generator backup protection and abnormal operation protection configuration is: interphase impedance protection, base wave zero order voltage protection, three harmonic voltage protection, rotor one point grounding protection, rotor limit winding overload protection, reverse time rotor surface overload protection, overvoltage protection, reverse power protection, low frequency accumulation protection, start and stop protection, sudden voltage protection, electric overspeed protection, TA break protection, TV disconnection protection .
3,600 (300) MW-500kV turbine generator-transformer unit transformer backup protection configuration: interphase impedance protection (composite voltage overcurrent protection), zero order current protection, gap zero order current voltage protection, overload protection, TA line protection, TV line protection.
4.600 (300) MW-500kV turbine generator-transformer unit is configured: overvoltage overflow protection, two branches low-voltage overflow protection, two branches zero-sequence overflow protection, two branches zero-sequence overvoltage protection, overload protection, ventilation start protection, TA broken line protection, TV overline protection.
5,600 (300) MW-500kV steam turbine generator-transformer group unit exciter (transformer) backup protection configuration is: exciter (transformer) overcurrent protection, reverse time limit excitation overload protection, TA disconnection protection.
6.600 (300) MW-500kV steam turbine generator-transformer group unit other protection: short lead protection, failure start protection, circuit breaker break flash protection, non-full phase operation protection, generator water break protection, generator thermal protection, excitation system failure, system protection joint jump; main transformer and plant transformer all non-power protection.
Supply the power plug-in of Xuji WFB-802A microcomputer generator protection measurement and control device
WBH-800 microtransformer protection device is suitable for 220kV voltage grade transformer.The WBH-801 unit integrates the full electrical volume protection of a single transformer.The WBH-802 unit integrates the full non-electrical volume protection of a single transformer.The protection device can also meet the requirements of the substation automation system.

Supply WFB-801 Xu generator protection power plug-in LCD screen


WFB-800 series micro-variable set protection device is mainly suitable for the protection of main power system.WFB-801 integrates all the electrical protection of a generator, WFB-802 integrates all the electrical protection of a main transformer, WFB-803 integrates all the electrical protection of a high plant transformer and excitation transformer (exciter), and WFB-804 integrates all non-power protection of a main transformer and high plant transformer.It can meet the completely independent configuration requirements of double main protection, double backup protection, non-power protection and non-power protection.At the same time, the series of protection can also be directly connected to the power plant's integrated automation system.


Supply WFB-801 Xu generator protection power plug-in LCD screen


1,600 (300) MW-500kV-transformer unit main protection configuration: generator longitudinal differential protection, generator interturn protection (transverse difference protection or negative order incremental direction locking longitudinal zero order voltage protection), main variable differential protection, power variable group differential protection, high plant variable differential protection, exciter (transformer) differential protection.


2,  600 (300) MW-500kV turbine generator-transformer unit generator backup protection and abnormal operation protection configuration is: interphase impedance protection, base wave zero order voltage protection, three harmonic voltage protection, rotor one point grounding protection, rotor limit winding overload protection, reverse time rotor surface overload protection, overvoltage protection, reverse power protection, low frequency accumulation protection, start and stop protection, sudden voltage protection, electric overspeed protection, TA break protection, TV disconnection protection .


3,600 (300) MW-500kV turbine generator-transformer unit transformer backup protection configuration: interphase impedance protection (composite voltage overcurrent protection), zero order current protection, gap zero order current voltage protection, overload protection, TA line protection, TV line protection.


4.600 (300) MW-500kV turbine generator-transformer unit is configured: overvoltage overflow protection, two branches low-voltage overflow protection, two branches zero-sequence overflow protection, two branches zero-sequence overvoltage protection, overload protection, ventilation start protection, TA broken line protection, TV overline protection.


5,600 (300) MW-500kV steam turbine generator-transformer group unit exciter (transformer) backup protection configuration is: exciter (transformer) overcurrent protection, reverse time limit excitation overload protection, TA disconnection protection.


6.600 (300) MW-500kV turbine generator-transformer group unit other protection: short lead protection, failure start protection, circuit breaker break flashover protection, non-full phase operation protection, generator water break protection, generator thermal protection, excitation system failure, system protection joint jump; main transformer and plant transformer all non-power protection.


Supply WFB-801 Xu generator protection power plug-in LCD screen