Eaton EDR-3000-2C0IA1 Distribution Protection Relay

The Eaton EDR-3000-2C0IA1 is a sophisticated distribution relay designed for primary feeder circuit protection and transformer protection applications. Part of the EDR-3000 series, this relay combines comprehensive metering, protection, and control functions in a compact aluminum enclosure. With 5/1 A phase and ground current sensing, multiple communication protocols, and advanced protection features, it provides complete protection for industrial and utility distribution systems.

Key Features

• Current sensing: 5 A / 1 A phase and ground current inputs

• I/O configuration: 4 digital inputs, 4 digital outputs

• Supply voltage: 40-250 VAC or 19-300 VDC (universal power supply)

• Communication: Modbus/DNP3 RTU over RS-485, Modbus/DNP3 TCP over Ethernet RJ-45

• Display: Backlit LCD for local monitoring and configuration

• Zone selective interlocking (ZSI) for improved coordination

• Breaker control: Open/close from relay faceplate or remotely via communications

• IRIG-B time synchronization input

• Waveform capture: 6000 cycles for post-fault analysis

• Removable terminal blocks for easy replacement

Technical Specifications

Protection and Control Functions

The EDR-3000-2C0IA1 provides multiple operator-selectable protective functions including phase overcurrent, ground overcurrent, and negative sequence overcurrent. Zone selective interlocking (ZSI) significantly improves coordination and tripping time compared to traditional bus differential schemes, eliminating the need for additional CTs or relays. The relay also includes breaker trip circuit monitoring to improve reliability of breaker operation. Built-in self-diagnostics continuously monitor relay health and report any issues, improving uptime.

Metering and Recording

Complete metering capabilities include phase currents, ground current, demand values, and power quality parameters. The relay captures up to 6000 cycles of waveform data for detailed post-fault analysis, viewable using Powerport-E software. Trip and event recording in non-volatile memory provides detailed information for analysis and system restoration, reducing troubleshooting time and maintenance costs.

Applications

• Primary feeder circuit protection

• Primary transformer protection

• Industrial distribution systems

• Utility substation feeders

• Commercial building main distribution

• Generator protection and intertie

User Interface and Configuration

The intuitive LCD display and keypad provide local access to all settings, measurements, and event records. Intuitive programming substantially reduces operator training time and provides unmatched operability and flexibility. The integral test function reduces maintenance time and expense by allowing functional testing without external equipment. For remote configuration, the relay supports multiple communication protocols and can be fully accessed via Modbus or DNP3.

The Eaton EDR-3000-2C0IA1 distribution relay delivers comprehensive protection in a compact package, reducing panel space, wiring, and costs while improving system reliability and coordination.