User`s guide

Volume 3—Power Distribution and Control Assemblies CA08100004E—November 2013 www.eaton.com V3-T9-237
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9.4
Metering Devices, Protective Relays, Software and Connectivity
Protective Relays
ETR-4000
Contents
Description Page
Product Selection Guide . . . . . . . . . . . . . . . . . . . . . V3-T9-158
FP-6000 Feeder Protection. . . . . . . . . . . . . . . . . . . V3-T9-162
FP-5000 Feeder Protection. . . . . . . . . . . . . . . . . . . V3-T9-172
FP-4000 Feeder Protection. . . . . . . . . . . . . . . . . . . V3-T9-180
MP-3000 Motor Protection. . . . . . . . . . . . . . . . . . . V3-T9-188
MP-4000 Motor Protection. . . . . . . . . . . . . . . . . . . V3-T9-198
MD-3000 Motor/Generator Differential Relay. . . . . V3-T9-204
Digitrip 3000. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . V3-T9-207
VR-300 Multifunctional Voltage Relay . . . . . . . . . . V3-T9-217
DP-300 Current Differential Protection Relay . . . . . V3-T9-221
EDR-3000 Feeder Protection . . . . . . . . . . . . . . . . . V3-T9-226
ETR-4000 Transformer Protection Relay
Features, Benefits and Functions . . . . . . . . . . . V3-T9-238
Catalog Number Selection . . . . . . . . . . . . . . . . V3-T9-241
Technical Data and Specifications . . . . . . . . . . . V3-T9-241
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . V3-T9-248
Ground Fault Relay . . . . . . . . . . . . . . . . . . . . . . . . . V3-T9-250
Universal RTD Module . . . . . . . . . . . . . . . . . . . . . . V3-T9-254
IQ 125 Volt DC Power Supply . . . . . . . . . . . . . . . . . V3-T9-258
ETR-4000 Transformer Protection Relay
Product Description
Eaton’s ETR-4000
transformer protection
relay is a multi-functional,
microprocessor-based relay
for two winding transformers
of all voltage levels. The
ETR-4000 provides phase and
ground percentage restrained
differential protection using
a variable dual slope
characteristic with phase,
negative, residual and neutral
overcurrent elements for
backup protection. It can also
be used to provide restrained
differential protection to large
motors and generators.
The ETR-4000 has eight
current inputs rated for either
5 amperes or 1 ampere to
monitor both sides of the
transformers. The CTs can
be connected in wye in both
sides of the transformer;
the relay automatically
compensates for the
connection of the transformer
and CT mismatch errors.
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.
An integral keypad and
display is provided for direct
user programming and
retrieval of data without
the need of a computer.
14 programmable LEDs
provide quick indication of
relay status.
A front port is provided for
direct computer connection.
An RS-485 communication
port on the back is standard
for local area networking
using Modbus-RTU. An
optional Ethernet port and
protocols are available.
Flash memory is used for the
programming and all settings
are stored in nonvolatile
memory. The relay allows for
four preprogrammed setting
groups which can be
activated through software,
the display or a contact input.
The ETR-4000 transformer
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 ETR-4000 has eight
programmable binary inputs,
4 normally opened and
4 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.