User`s guide

V3-T9-254 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
Universal RTD Module
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 . . . . . . . . V3-T9-237
Ground Fault Relay . . . . . . . . . . . . . . . . . . . . . . . . . V3-T9-250
Universal RTD Module
Product Selection . . . . . . . . . . . . . . . . . . . . . . . V3-T9-255
Options and Accessories . . . . . . . . . . . . . . . . . V3-T9-255
Technical Data and Specifications . . . . . . . . . . . V3-T9-255
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . V3-T9-257
IQ 125 Volt DC Power Supply. . . . . . . . . . . . . . . . . V3-T9-258
Universal RTD Module
Product Description
●
Electronic Resistance
Temperature Detector
(RTD) provides motor
temperature interface
for the MP-3000 Motor
Protection Relay
●
Monitors up to 11 RTDs
consisting of six motor
windings, two motor
bearings, two load
bearings and one auxiliary
●
Works with 10 ohm copper,
100 ohm
platinum, 100 ohm
nickel and 120 ohm
nickel
type RTDs
●
Include fiber optic and
electrical communication
interfaces to the MP-3000
Motor Protection Relay
Application Description
Eaton’s URTD Module is
most commonly used to
provide motor temperature
information to the MP-3000
Motor Protection Relay. The
MP-3000 Motor Protection
uses this information for
monitoring, tripping and
alarming. The MP-3000 Intel-
I-Trip overload algorithm will
adjust its trip characteristics
based on the actual motor
temperature reported by the
URTD Module. This improves
the protection by using an
actual temperature value
instead of the assumed
NEMA Standard Ambient
Temperature.
The URTD Module may be
mounted close to the motor
or at the protective relay.
Both electrical and fiber optic
interface ports are provided
to communicate temperature
information to the MP-3000
relay. The electrical interface
can transmit information
using a three-conductor
shielded cable with a
maximum cable distance of
500 feet (152m). The fiber
optic link has a maximum
distance of 400 feet (122m).
The URTD Module may be
used with the IQ-1000 and
IQ-1000 II motor relays. It
may also be applied as a
standalone temperature
monitoring device
communicating, for example,
transformer temperature
information back to a remote
computer or PLC. An optional
PONI (Product Operated
Network Interface) is required
for standalone applications.
Features, Benefits
and Functions
●
Universal design works
with any RTD type,
simplifying installation and
operation and reducing
inventory
●
Standalone design permits
mounting the module close
to the motor, reducing RTD
wiring costs
●
RTD diagnostics detects
faulty RTDs and wiring,
reducing unnecessary
tripping and alarming