User`s guide

V3-T9-198 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-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
Features, Benefits and Functions . . . . . . . . . . . V3-T9-199
Standards and Certifications . . . . . . . . . . . . . . . V3-T9-199
Product Selection . . . . . . . . . . . . . . . . . . . . . . . V3-T9-201
Options and Accessories . . . . . . . . . . . . . . . . . V3-T9-201
Technical Data and Specifications . . . . . . . . . . . V3-T9-202
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . V3-T9-203
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-4000 Motor Protection
Product Description
●
Microprocessor-based,
multi-function motor
protection
●
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-4000 motor
protection relay is a
multifunctional
microprocessor-based
protective relay for the
protection of three-phase ac
motors. The MP-4000 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-4000 motor relay
monitors three-phase and
ground currents, and three-
phase voltages. It provides
motor overload, stall, short
circuit, phase unbalance, single
phasing over/undervoltage,
underpower, power factor and
ground fault motor protection.
It can also be used to provide
protection for a load jam or loss
of load condition.
The MP-4000 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-4000 motor relay may
be applied to either across the
line starters or reduced voltage
starters. On reduced voltage
starters, the MP-4000 relay can
control the switch from
reduced voltage to full voltage
based on time and/or motor
transition. The MP-4000 can
protect the starter against
failure to transition to full
voltage through contact
feedback and an incomplete
sequence function.
The MP-4000 motor relay is
generally used on a motor
starter or a breaker used for
a motor load. The MP-4000
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.