User`s guide

V3-T9-188 Volume 3—Power Distribution and Control Assemblies CA08100004E—November 2013 www.eaton.com
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9.4
Metering Devices, Protective Relays, Software and Connectivity
Protective Relays
MP-3000
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
Features, Benefits and Functions . . . . . . . . . . . V3-T9-189
Standards and Certifications . . . . . . . . . . . . . . . V3-T9-189
Product Selection . . . . . . . . . . . . . . . . . . . . . . . V3-T9-190
Options and Accessories . . . . . . . . . . . . . . . . . V3-T9-190
Technical Data and Specifications . . . . . . . . . . . V3-T9-191
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . V3-T9-195
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 . . . . . . . . V3-T9-237
Ground Fault Relay . . . . . . . . . . . . . . . . . . . . . . . . . V3-T9-250
Universal RTD Module . . . . . . . . . . . . . . . . . . . . . . V3-T9-254
IQ 125 Volt DC Power Supply. . . . . . . . . . . . . . . . . V3-T9-258
MP-3000 Motor Protection
Product Description
●
Microprocessor-based,
multi-function motor
protection
●
Current only device—
no need to add PTs
●
Intel-I-Trip™ overload
protection based on
motor data
●
Event recording and
operational logging
●
Motor Start Profile™
●
Optional Quick Release
Drawout Case
●
Used on AMPGARD
®
and medium voltage
assemblies
●
“Help” menu provides
user operational assistance
Application Description
Eaton’s MP-3000 motor
protection relay is a
multifunctional
microprocessor-based
protective relay for the
protection of three-phase AC
motors. The MP-3000 motor
relay may be applied to any
size motor at any voltage
level. It is most commonly
used on large, medium
voltage three-phase induction
motors. It has also been
widely used on important
low voltage (480 volt)
motor applications and
synchronous motors.
The MP-3000 motor relay is
a current only device that
monitors three-phase and
ground currents. It provides
motor overload, stall, short
circuit, phase unbalance,
single phasing and ground
fault motor protection.
It can also be used to provide
protection for a load jam or
loss of load condition. Please
refer to Page V3-T9-192.
The MP-3000 motor relay
provides start control logic
to protect the motor against
excessive starts or starting
the motor before it has had
sufficient time to cool down.
The MP-3000 motor relay
may be applied to either
across the line starters or
reduced voltage starters. On
reduced voltage starters, the
MP-3000 relay can control the
switch from reduced voltage
to full voltage based on time
and/or motor transition. The
MP-3000 can protect the
starter against failure to
transition to full voltage
through contact feedback and
an incomplete sequence
function.
The MP-3000 motor relay is
generally used on a motor
starter or a breaker used for
a motor load. The MP-3000
motor relay provides the
intelligence to protect and
control the motor against
abnormal operating
conditions. It monitors the
currents from either a 5A
or 1A secondary of a CT
circuit. Ground current may
be obtained from either a
ground CT or from the
residual connection of the
phase CTs. It provides a
Form C contact output for
controlling the starter contacts
or breaker operation.