Eaton EDR-5000 Distribution Protection Relay

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 .

The EDR-5000 distribution protection relay includes programmable

logic functions . Logic gates and timers may be defined and arranged

for customized applications . Programmable logic control functions

make the EDR-5000 relay ideally suited for main-tie-main and main

1/main 2 transfer schemes . Flash memory is used for the program

ming and all settings are stored in nonvolatile memory . The relay

allows for four preprogrammed setting groups which can be acti

vated through software or contact input .

Flash memory is used for the programming and all settings are

stored in nonvolatile memory . The relay allows for four prepro

grammed setting groups which can be activated through software,

the display or a contact input .

The EDR-5000 distribution protection relay has mass memory for

data storage and a real-time clock with 1 ms time resolution . The

relay will log 300 sequence of event records, 20 detailed trip logs,

minimum/maximum values, load profiles, breaker wear information

and oscillography data .

The EDR-5000 has eight programmable binary inputs, 2 normally

opened and 8 Form C heavy duty outputs and one form C signal

alarm relay . It can be powered from 19 Vdc to 300 Vdc or 40 Vac to

250 Vac auxiliary power

Key Features, Functions and Benefits

• Microprocessor-based protection with monitoring and control for

medium voltage main and feeder applications .

• Current, voltage, and frequency protection for electrical power

distribution systems .

• Complete metering of voltage, currents, power, energy, mini

mum/maximum and demand functions .

• Complete metering, protection, and control in a single compact

case to reduce panel space, wiring and costs .

• Integral test function reduces maintenance time and expense .

• Zone selective interlocking improves coordination and tripping

time, and saves money compared to a traditional bus differential

scheme .

• Programmable logic control functions for main-tie-main transfer

schemes* .

• Reduce trouble shooting time and maintenance costs- Trip and

event recording in non-volatile memory provides detailed informa

tion for analysis and system restoration . 6000 cycles of waveform

capture aids in post fault analysis (viewable using Powerport-E

software)

• Minimum replacement time- Removable terminal blocks ideal in

industrial environments

• Front USB port and Powerport-E software provides local com

puter access and user-friendly windows based interface for relay

settings, configuration, and data retrieval .

• Breaker open/close from relay faceplate or remotely via commu