Introduction: 

GLP551 Feeder protection devices can be used in a variety of main wiring modes to support different types of power grids, such as the neutral point ungrounded system, grounding via arc-suppression coil system and small resistance grounding system. Its outstanding characteristics are powerful, flexible, stable and reliable. According to different application requirements, GLP551 can be configured with the inlet wire, the bus couple, the line outlet wire, transformer outlet wire, capacitor outlet wire, outlet wire of motors, PT, main transformer backup and other different protections, and set up with the protection function. 

Characteristics: 

1. Integration of protection, measurement and control, status monitoring, comprehensive application, and more options of communication modes; 

2. Professional EMC common-ground design and real-time monitoring of the input power, analog and digital power of the device with configuration of the online self-testing program. The      device does not lose power if there is 100ms interruption interval of the power supply; 

3. Overall application of industrial-grade components. Sufficient electrical-isolation has been adopted for all connections with the external to ensure the safety and reliability of the     installation; 

4. Module design: break the traditional fixed protection logic function mode and modularize the input quantity required for the protecting the logic; 

5. Platform design: unified platforms for hardware and software to simplify the production and user applications;

6. Flexibility design: the traditional mode that protective equipment are classified according to the protection objects has been broken and users can edit the required protection function   by modular resources to adapt to different protection objects; 

7. Dedicated Chinese and English debugging software and graphical programming interfaces are easy and straightforward for users to master and apply. Different protection logic and set       values can be uploaded or downloaded by the software;

8. Support the PLC logic programmable function in line with the IEC-61131-3 graphics programmable standard.