ABB RER670 en-US IEC User Documentation

ABB Technology Ltd. produces the RER670 protection relay, designed to protect and control all types of power transformers and reactors. This user documentation is specifically intended for users in the United States who operate the relay in accordance with IEC standards.

The RER670 relay provides a comprehensive range of protection functions including overcurrent, differential, and restricted earth-fault protection, in addition to automating transformer cooldown procedures. The device is also equipped with a built-in disturbance recorder for analyzing and diagnosing system faults.

• The relay has a flexible configuration that enables users to tailor its settings to meet individual application requirements.
• With its user-friendly interface, operators can effortlessly monitor the relay’s status, events, and measured values using a series of easy-to-read displays and indicators.
• The device supports communication through various advanced protocols like IEC 61850, enabling remote monitoring and control of the relay.

The RER670 is designed with IEC publication No. 60255-27 standard compliance for electromagnetic immunity, making it more resilient in harsh electromagnetic environments. Additionally, the device also meets high safety and ecological standards through its environmentally friendly design and minimal energy consumption.

This user documentation provides valuable information on the setup, operation, and maintenance of the RER670 protection relay. With its advanced features and flexible configuration options, this protective device enhances safety and reliability in power systems.