General Description

Eaton’s EDR-5000 distribution protection relay is a multi-functional,

microprocessor-based relay for feeder circuits of all voltage levels .

It may be used as a primary protection on feeders, mains and tie

circuit breaker applications; or as backup protection for transformers,

high voltage lines and differential protection . The relay is most com

monly used on medium voltage switchgear applications

The EDR-5000 distribution protection relay provides complete cur

rent, voltage, and frequency protection and metering in a single,

compact case . The relay has four current inputs rated for either 5

amperes or 1 ampere and four voltage inputs . Three of the voltage

inputs are to be connected to the 3-phase power voltage for voltage

protection and for metering . They can be connected in wye-ground

or open delta configuration . The fourth voltage is for independent

single-phase undervoltage/overvoltage protection, or ground protec

tion for an ungrounded system .

The maintenance mode password protected soft key can be used for

arc flash mitigation to change to an alternate settings group, set to

have instantaneous elements only . The multiple setting groups can

also be changed, via communications or a digital input .

An integral keypad and display is provided for direct user program

ming and retrieval of data without the need of a computer . 14 pro

grammable LEDs provide quick indication of relay status .

A front USB port is provided for direct computer connection . An

RS-485 communication port on the back is standard for local area

networking using Modbus-RTU or DNP3 . An optional Ethernet port

and protocols are available .