This document introduces ABB's new AC500-eCo PLC product, which has high scalability, modular platform, cost-effectiveness and other features
This issue of ABB Technology Solutions introduces the Relion 670 and 650 series Intelligent Electronic Devices (IEDs) for line distance protection. It describes their protection functions, configuration options, IEC 61850 compliance, and integrated HMI features.
The publication also highlights other ABB products such as the ACS 2000 medium‑voltage drive, process performance motors, and recent events at Automation and Power World Africa 2009, providing a snapshot of ABB's offerings in power and automation for the African market.
| Distance protection zones | five zones for phase‑to‑phase and phase‑to‑earth faults |
|---|---|
| Impedance characteristics | Mho and quadrilateral |
| IEC 61850 support | Fully IEC 61850 compliant |
| Load encroachment function | Detects high‑resistive faults without affecting load current |
| Auto‑reclosing | Synchro‑check enabled auto‑reclosing |
Yes, both the REL670 and REL650 are designed to meet IEC 61850 standards.