RED670

ABB RED670 is a powerful and highly reliable transmission line differential protection device. It plays an important role in the power system and provides a strong guarantee for the safe and stable operation of the power system.

Features
High sensitivity: Highly sensitive to high impedance faults, able to detect faults quickly and accurately.
High reliability: Adopting advanced hardware and software design, it has high reliability.
Rich functions: Provide a variety of protection functions to meet the protection needs of different lines.
Flexible Configuration: It can be flexibly configured according to different line parameters.
Easy Maintenance: Provide friendly man-machine interface, convenient for users to carry out maintenance.

Application Fields
Power system: Widely used in power systems to protect overhead lines and cables.
Substation: Used to protect the lines in the substation.
Industrial enterprises: used to protect the distribution lines of industrial enterprises.

Main Functions
Differential protection: It adopts phase-separated current differential protection with high sensitivity to high impedance faults and reliable phase selection function.
Distance protection: Provides distance protection with directional elements, which can quickly and accurately locate the fault point.
Overload protection: Provides overload protection to prevent damage caused by line overload.
Ground Fault Protection: Provides ground fault protection to prevent ground faults on the line.
Current and Voltage Measurement: Accurately measures the current and voltage on the line, providing reliable data for protection functions.
Synchronization check and line impedance calculation: Perform synchronization check and line impedance calculation to ensure the accuracy of the protection device.
Communication Interface: Supports various communication protocols, such as IEC 61850-8-1 station bus and IEC 60870-5-103, which is convenient for communication with other devices.
Local human-machine interface: Provides friendly human-machine interface, which is convenient for users to operate and maintain.

1. 14 years of professional industrial control