The RED670 is a line differential protection device for power systems of all voltage levels to protect, control and monitor overhead lines and cables. The device uses split-contrast dynamic protection technology, which is highly sensitive to high-resistance faults and provides safe phase selection for up to five line terminals. In addition, the RED670 can also include two or three winding power transformers in the protection range. Its main features include:
It can be used to protect, control and monitor overhead lines and cables in power systems with different voltage levels.
The use of phase difference dynamic protection technology, high sensitivity to high resistance fault, can quickly detect and remove the fault line.
Safe phase selection for up to five line terminals ensures stable operation of the power system.
It can be applied to a variety of complex power systems, such as power systems with series compensation.
With remote monitoring and control function, convenient remote operation and management.
It has high reliability and stability, and can operate continuously for a long time.
In general, RED670 is a high-performance line differential protection equipment, suitable for various voltage levels of power systems, can provide comprehensive protection, control and monitoring functions to ensure the safe, stable and reliable operation of the power system.
The application scenarios of RED670 include but are not limited to the following:
Line differential protection: RED670 is suitable for line differential protection of power systems with various voltage levels, such as overhead lines and cables. It adopts split-phase dynamic protection technology, has high sensitivity to high resistance faults, and can quickly detect and remove fault lines to ensure the stable operation of power system.
Transformer protection: RED670 can include two or three winding power transformers in the protection range for differential protection of power transformers. It can eliminate the influence of external ground fault on differential protection and improve the reliability and stability of protection.
Backup channel protection: RED670 can be used in single-channel or redundant channel modules to provide backup channel protection. When the communication channel is interrupted, it can be used as a selective backup protection to ensure the safe operation of the power system.
Current protection: RED670 is equipped with the current protection function, which can effectively detect the fault current in the line and provide the corresponding protection measures.
Voltage protection: RED670 also has a voltage protection function, which can monitor voltage changes on the line and provide corresponding control and protection strategies.
Remote monitoring and control: RED670 supports remote monitoring and control functions for easy remote operation and management. Through remote monitoring, the running status of the power system can be monitored in real time, potential problems can be discovered and solved in time, and the reliability and stability of the power system can be improved.
Overall, the RED670 is suitable for a variety of complex power systems, providing comprehensive protection, control and monitoring capabilities. It has a wide range of application scenarios and can ensure the safe, stable and reliable operation of power systems.
