Motor Protection Relay

Motor Protection Relay
Technical Data TD02602014E
Effective August 2010
EMR-3000
Motor Protection Relay
Contents
Description
Page
Key Features, Functions and Benefits. . . . . . . . . . 2
General Description. . . . . . . . . . . . . . . . . . . . . . . . 2
Features. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Protection and Control Functions . . . . . . . . . . . . . 4
Monitoring and Metering. . . . . . . . . . . . . . . . . . . . 5
Communication Software. . . . . . . . . . . . . . . . . . . 11
Standards, Certifications and Ratings. . . . . . . . . 12
Ordering Information. . . . . . . . . . . . . . . . . . . . . . 16
EMR-3000
Motor Protection Relay
Technical Data TD02602014E
Effective August 2010
Key Features, Functions and Benefits
•
Microprocessor-based protection with monitoring, and control for
medium voltage motors.
•
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.
•
Reduce trouble shooting time and maintenance costs- Trip and
event recording in non-volatile memory provides detailed information 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 RS-232 port and Powerport-E software provides local computer access and user-friendly windows based interface for relay
settings, configuration, and data retrieval.
•
Breaker open/close from relay faceplate or remotely via communications.
•
Fast an easy troubleshooting, improved maintenance procedures
and increased device security. Provides detailed traceability for
system configuration changes
•
Relays self-diagnostics and reporting improves uptime and troubleshooting.
•
Breaker trip circuit monitoring improves the reliability of the
breaker operation.
.
General Description
Eaton’s EMR-3000 motor protection relay is a multifunctional microprocessor-based protective relay for the protection of any size motor
at all voltage levels. It is most commonly applied on medium voltage
or larger motors. The MP-3000 relay is a current only device that provides complete and reliable motor protection, monitoring, and starting control functions.
The EMR-3000 motor protection relay has removable terminal
blocks, and it has Modbus-RTU communications as standard; and an
optional Ethernet port for Modbus-TCP communications.
The EMR-3000 motor protection relay has three-phase and one
ground current inputs. It can be used with either a 5A or 1A CTs.
The ground protection can be used with either a zero sequence
ground CT or from the residual connection of the phase CTs. The
zero sequence ground CT provides greater ground fault sensitivity
than the residual connection. The unit is user programmable for 60
Hz or 50 Hz operation.
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. Flash
memory is used for the programming and all settings are stored in
nonvolatile memory.
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.
The EMR-3000 motor 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, the 5 latest start profiles,
motor trending, breaker wear information and oscillography data.
The EMR-3000 motor protection relay has four discrete inputs and
1 fiber optic input, 1 Form C, and 2 NO programmable contacts,
1 Form C healthy contact. It also has an optional 4-20 mA analog
output or zone interlocking card. The relay provides maximum user
flexibility to configure the I/O. All inputs and outputs (except the
healthy output) are user-programmable. The unit also counts with a
test mode to force outputs and simulate currents, to facilitate the
commissioning of the unit. It can be powered from 19 Vdc to 300
Vdc or 40 Vac to 250 Vac auxiliary power.
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eaton corporation www.eaton.com
EMR-3000
Motor Protection Relay
Technical Data TD02602014E
Effective August 2010
Features
Monitoring Features
Protection Features
•
Trip coil monitor
Breaker wear primary and secondary (accumulated interrupted
current).
•
Thermal protection (49/51)
• Locked rotor protection ( 49S/51)
•
•
Oscillography (6000 cycles total).
•
Phase overcurrent elements:
• Two instantaneous elements with timers ( 50P[1], 50P[2], and
50P[3])
•
Fault data logs (up to 20 events).
•
Sequence of events report (up to 300 events).
•
Trending (load profile over time)
•
Motor History
•
Three inverse time overcurrent elements (51P[1], 51P[2], and
51P[3])
•
11 standard curves
•
Records the last 5 motor start profiles.
Instantaneous or time delay reset
•
Motor Start Trending.
•
CT supervision
•
Clock (1 ms time stamping).
•
•
Ground overcurrent elements:
• Two instantaneous measured elements with timers (50X[1],
and 50X[2])
Control Functions
Two instantaneous calculated elements with timers (50R[1],
and 50R[2])
•
Transition for reduced voltage starts
Two inverse time overcurrent measured elements (51X[1], and
51X[2])
•
Incomplete sequence delay
•
Permits numbers of cold starts
Two inverse time overcurrent calculated elements (51R[1], and
51R[2])
•
Limits numbers of starts per hour
•
Anti-backspin time delay
•
11 standard curves
•
Mechanical load shedding
•
Instantaneous or time delay reset
•
Zero speed switch for long acceleration motors
Jam or Stall protection (50J[1], 50J[2])
•
Motor stop inputs
Phase unbalance negative sequence overcurrent (46[1], 46[2])).
•
Remote trip input
•
Underload protection (37[1], 37[2], 37[3])
•
Differential trip input
•
Temperature protection with optional URTD (49/38).
•
Emergency override
Stars per hour (66)
•
Breaker/Contactor open-close/stop-start
Lockout protection (86).
•
Remote open-close (stop-start)
Breaker failure (50BF).
•
Programmable I/O
Zone interlocking for bus protection (87B).
•
Programmable LEDs
•
Multiple setting groups.
•
•
•
•
•
•
•
•
•
Metering Features
Communication Features
•
Amperes: Positive, negative and zero sequence.
•
Ampere demand.
•
Local HMI.
Phase angles.
•
Password protected.
Frequency.
•
Addressable.
% THD I.
•
IRIG-B
•
Magnitude THD I.
•
Local communication port.
•
Minimum/maximum recording
•
Remote communication port:
Phase angles.
•
RS-232
•
Phase angles.
•
RS-485
•
Temperature with remote URTD module
•
Protocols:
•
Modbus-RTU
•
Modbus-TCP (Optional)
•
Configuration software
•
•
•
•
eaton corporation www.eaton.com
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EMR-3000
Motor Protection Relay
Technical Data TD02602014E
Effective August 2010
Protection and Control Functions
Jam protection
The Eaton’s EMR-3000 motor protection relay has been designed
for maximum motor operation and protection. It permits running the
motor close to its design limits while protecting it against excessive
heating and damaging overload conditions. The EMR-3000 field proven protection algorithms were developed based on motor designs
and operating parameters for optimum operation and protection
while minimizing nuisance tripping. The EMR-3000 motor protection
relay utilizes a patented protection algorithm and measurement technique based on proven positive and negative (unbalance) sequence
current sampling and true RMS calculations.
The user-selectable Jam function protects motors that are running
against a sudden mechanical jam or stall condition. The common
application is on motors used on crushers, chippers, or conveyors.
It detects an increase of motor current to a level above full load.
Pickup, start, and run timers and a second element for alarm purposes are provided.
Intel-I-Trip (I2t) overload protection
The EMR-3000 motor relay features the exclusive Eaton Intel-I-Trip
intelligent overload protection system. Intel-I-Trip develops custom
overload curves simply from motor nameplate data. Intel-I-Trip protects motors from potentially damaging overload and abnormal operating conditions. The Intel-I-Trip intelligent overload protection feature
utilizes field proven measurement techniques and a patented motor
thermal protection model. The EMR-3000 motor relay’s unique measurement technique samples the current waveforms 36 times per
cycle, providing accurate measurements of the positive and negative
sequence currents. The negative sequence current causes a greater
heating effect on the rotor and has a greater impact on the thermal
model in the relay. Intel-I-Trip utilizes these measurements in its
motor model to safely protect the motor against the heating effects
of these currents.
Underload Protection
The user selectable underload function is used to detect the loss of
load on the motor. Coupling failure is a common cause for loss of
load. Pickup, start, and run timers and a second element for alarm
purposes are provided.
Reduced voltage starting
The EMR-3000 motor protection relay provides a transition and
incomplete sequence function for reduced voltage starting. The user
can select to transition based on the current level and/or on time.
Antibackspin
The stop function is programmable from 2–20%. For certain applications, such as pumping a fluid up a pipe, the motor may be driven
backward for a period of time after it stops. The EMR-3000 relay provides an antibackspin timer to prevent starting the motor while it is
spinning in the reverse direction. The timer begins counting from the
moment a stop is declared by the relay.
The motor thermal model is analogous to a bucket that is being filled
and drained at the same time. The fill rate is dependent on the motor
currents and the drain is based on motor design principles. The size
of the bucket is equivalent to the thermal capacity associated with
the mass of the motor. Intel-I-Trip integrates these rates and will
issue a trip when the thermal capacity is filled.
Start control timers
Intel-I-Trip features adaptive trip characteristics that adjust the trip
times based on measured motor temperature when RTDs are used.
Load shedding
Instantaneous overcurrent
The EMR-3000 motor protection relay provides an instantaneous
phase overcurrent function to trip the motor for high fault current
levels and save the fuses. This function can be disabled and has
an adjustable time delay on starting to avoid nuisance tripping on
inrush.
Phase Unbalance Protection
Motor supply circuits are often fed through fuses and can be run
with a single-phase fuse blown, referred to as single phasing the
motor. The EMR-3000 motor protection relay measures the current
unbalance and can be used to alarm or trip the motor before damage
occurs. Pickup, start, and run timers and a second element for alarm
purposes are provided.
Ground Fault Protection
A separate measuring circuit is used to measure ground current. A
ground CT is recommended for more sensitive protection against
winding insulation breakdown to ground. The relay ground circuit can
be connected residually from the three-phase CTs. The ground fault
protection has pickup and time delay set points or can be disabled.
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Motors typically have limits to the number of cold starts, starts per
hour period, or time between starts that are permitted without damage. The EMR-3000 motor protection relay incorporates these timers
to prevent starting the motor beyond its capabilities.
The EMR-3000 motor protection relay provides a mechanical load
shedding feature that can be used to control an upstream process.
The load-shedding function closes a contact on an overload condition to control an upstream process from adding more load until the
overload condition is gone.
Emergency override
The EMR-3000 motor protection relay has a user-programmable feature that will let the operator reset the start inhibitor timers and thermal overload bucket. This function is intended for use in emergency
conditions only, and it may result in motor damage or failure.
Long acceleration motors
Large motors with a high inertia may experience starting currents
that exceed the locked rotor current and time. The EMR-3000 motor
protection relay has logic and provisions for a zero speed switch
input to differentiate between a stall and start condition. If the motor
is spinning, then the relay will not trip on the normal locked rotortime allowing the motor to start.
Remote/differential trip
The digital inputs can be programmed to accept a contact input
from a separate differential relay or other device to trip the motor.
This provides local and remote target information and utilizes the trip
contacts of the EMR-3000 motor protection relay. It will also record
and log the motor information at the time of the trip.
EMR-3000
Motor Protection Relay
Technical Data TD02602014E
Effective August 2010
Breaker Failure or Stuck Contactor
Monitoring and Metering
The EMR-3000 motor protection relay includes a breaker failure
(50BF, 62BF) function that can be initiated from either an internal or
external trip signal. This is an independent element that can be used
to operate a lockout relay or trip an upstream breaker. The timer
must be longer than the breaker operating time and the protective
function reset times.
Sequence of Events Records
Flexible Phase Rotation
The EMR-3000 motor protection relay can be applied on either an
A-B-C or A-C-B phase rotation. A user setting permits correct operation and indication of the actual system configuration.
Maintenance Mode
The Maintenance Mode can improve safety by providing a simple
and reliable method to reduce fault clearing time and lower incident
energy levels at energized panels. The Maintenance Mode allows
the user to switch to more sensitive settings via a password protected soft key, communication or via a digital Input while maintenance
work is being performed at an energized panel or device. The more
sensitive settings provide greater security for maintenance personnel and helps reduce the possibility of injury.
The EMR-3000 protection relay records a maximum of 300 events
associated with the relay. An event is classified as a change of state
as detected by the relay. These include relay pickups, dropouts, trips,
contact closure, alarms, setting changes and self-diagnostic failures.
Each event is date and time stamped to a 1 ms resolution. The
events are stored in a FIFO in chronological order.
Trip Log
The EMR-3000 protection relay will store a maximum of 20 trip
records in a FIFO trip log. Each trip record will be date and time
stamped to a 1 ms resolution. The trip log record will include information on the type of fault, protection elements that operated, fault
location and currents and voltages at the time of the fault.
Waveform Capture
The EMR-3000 motor protection relay provides oscillography-recording capabilities. The relay will record all measured signals along with
the binary signals of pickup, trip, logic and contact closures. The
EMR-3000 relay can record up to 6000 cycles of data. The number
of records is proportional to the size of each record; the maximum
size per record is 600 cycles. The waveform capture is initiated by
up to 8 different triggers; it can also be generated manually through
the display or via communications.
Integral User Interface
The front panel user interface has a 128 x 64 pixel LCD display with
background illumination for wide angle viewing in all light conditions. 7 programmable LEDs provide quick and easy visual display of
power on, mode of operation, alarm and trip indication. Soft keys are
provided for operation mode selection, scrolling through data and
settings. In addition, the relay settings and test functions are password protected.
Starting Profiles
The EMR-3000 records the average current versus time for the last
five starting cycles. This information is available via the communications port through Powerport-E.
Motor Statistics
For each motor start, the EMR-300 stores a motor start report and
add this data to the motor statistics buffer. With the motor statistics
you can track motor start data for the past eighteen 30-day periods.
For each 30-day interval, the relay records the following information:
•
The date the interval began
•
The total number of starts in the interval
•
The averages of the following quantities:
•
Motor Start Time
•
Start % Rotor Thermal Capacity Used
•
Maximum Start Current
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5
Technical Data TD02602014E
Effective August 2010
Load Profiling/Trending
The EMR-3000 relay automatically records selected quantities into
non-volatile memory every 5, 10, 15, 30, or 60 minutes, depending
on the trending report setting.
Programmable I/O
The EMR-3000 motor protection relay provides heavy-duty, triprated, 2 normally open and 1 Form C contacts. One isolated inputs
can be used for monitoring the trip circuit. One Form C contact is
dedicated to the relay failure alarm function and is operated in a normally energized (failsafe) mode. There are 4 eight user-configurable
discrete inputs that accept a wet contact and can operate through
a wide range of power. Each input and output is user-programmable
for maximum application flexibility.
Drilling
Figure 1. Drilling Plan.
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eaton corporation www.eaton.com
EMR-3000
Motor Protection Relay
EMR-3000
Motor Protection Relay
Technical Data TD02602014E
Effective August 2010
Projection Mount Front and Side Views
Figure 2. Projection Mount Front and Side Views.
eaton corporation www.eaton.com
7
Technical Data TD02602014E
Effective August 2010
Standard Mount Front and Side Views
Figure 3. Standard Mount Front and Side Views.
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eaton corporation www.eaton.com
EMR-3000
Motor Protection Relay
EMR-3000
Motor Protection Relay
Technical Data TD02602014E
Effective August 2010
Typical AC Connections. 1A Cts, and ground current measured by Zero Sequence CT.
Figure 4. Typical AC Connections. 1A Cts, and ground current measured by Zero Sequence CT.
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9
Technical Data TD02602014E
Effective August 2010
Typical One-Line Diagram
Figure 5. Typical One-Line Diagram.
Typical Control Diagram
Figure 6. Typical Control Diagram.
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eaton corporation www.eaton.com
EMR-3000
Motor Protection Relay
EMR-3000
Motor Protection Relay
Technical Data TD02602014E
Effective August 2010
Communication Software
Eaton provides two types of communication software. The first is
PowerPort-E. It runs on a PC or laptop for easy access to a single
relay to change set points or configuration and to view metered
values and stored data. PowerPort-E is free and can be downloaded
from the Eaton Web site at the following URL:
http://www.EatonElectrical.com/pr
The second package is Power Xpert Software. Power Xpert Software
is a power management software package that is designed for continuous, remote monitoring of many devices. It provides additional
functions such as billing, trending and graphics. Contact your local
Eaton representative for more information on Power Xpert software.
Powerport-E- EMR-3000 Device Planning
Figure 7. Powerport-E - EMR-3000 Device Planning.
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EMR-3000
Motor Protection Relay
Technical Data TD02602014E
Effective August 2010
Standards, Certifications and Ratings
Voltage Supply
Specifications
•
Aux. Voltage: 19 - 300 Vdc / 40 – 250 Vac
Climatic Environmental Conditions
•
Buffer Time in Case of Supply Failure: > = 50 ms at minimal aux.
voltage communication is permitted to be interupted.
•
Max. Permissible Making Current:
• 18 A peak value for <0.25 ms
•
Storage Temperature: -25°C up to +70°C (-13°F to 158°F)
•
Operating Temperature: -20°C up to +60°C (-4°F to 140°F)
•
Permissible Humidity at Ann. Average: <75% rel. (on 56d up to
95% rel.)
•
Permissible Installation Altitude: <2,000 m (6,561.67 ft) above sea
level.
•
If 4,000 m (13,123.35 ft) altitude applies, a changed classification
of the operating and test voltages may be necessary.
Degree of Protection EN 60529
•
•
12 A peak value for <1 ms
The voltage supply must be protected by a fuse of:
• 2,5 A time-lag miniature fuse 5 x 20 mm
(approx. 0.2 x 0.8 in.) according to IEC 60127
•
3,5 A time-lag miniature fuse 6,3 x 32 mm
(approx. 0.25 x 1.25 in.) according to UL 248-14
Power Consumption
•
HMI Front Panel with Seal: IP54
•
Power Supply Range:
•
Rear Side Terminals: IP30
•
19 – 300 Vdc: 6 W idle mode/
8 W max. power
•
40 – 250 Vac 6 W idle mode/
8 W max. power
(For frequencies of 40-70 Hz)
Routine Test
•
Insulation Test Acc. to IEC60255-5: All tests to be carried out
against ground and other input and output circuits.
•
Aux. Voltage Supply, Digital Inputs, Current Measuring Inputs,
Signal Relay Outputs: 2.5 kV (eff.) / 50 Hz
Real Time Clock
•
Voltage Measuring Inputs: 3.0 kV (eff.) / 50 Hz
•
•
All Wire-Bound Communication Interfaces: 1.5 kV DC
Housing
•
Housing B1: Height / Width 183 mm (7.205 in.)/ 141.5 mm
(5.571 in.)
•
Housing Depth (Incl. Terminals): 208 mm (8.189 in.)
•
Material, Housing: Aluminum extruded section
•
Material, Front Panel: Aluminum/Foil front
•
Mounting Position: Horizontal (±45° around the X-axis must be
permitted)
•
Weight EMR-3000 Housing B1: Approx. 2.4 kg (5.291 lb)
Plug-in Connector with Integrated Short-Circuiter
(Conventional Current Inputs)
•
Nominal Current: 1 A and 5 A
•
Continuous Loading Capacity: 4 x In / continuously
•
Overcurrent Withstand: 30 x In / 10 s
•
100 x In / 1 s
•
250 x In / 10 ms (1 half-wave)
•
Screws: M4, captive type acc. to VDEW
•
Connection Cross Sections:
•
2 x 2.5 mm² (2 x AWG 14) with wire end ferrule.
•
1 x or 2 x 4.0 mm² (2 x AWG 12) with ring cable sleeve or cable
sleeve.
•
1 x or 2 x 6mm² (2 x AWG 10) with ring cable sleeve or cable
sleeve.
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Running reserve of the real time clock: 1 year min.
Display
•
Display Type: LCD with LED background illumination
•
Resolution - Graphics Display: 128 x 64 pixel
•
LED - Type: Two colored: red / green
•
Number of LEDs, Housing B1: 8
EMR-3000
Motor Protection Relay
Digital Inputs
Technical Data TD02602014E
Effective August 2010
Binary Output Relays
•
Max. Input Voltage: 300 Vdc / 270 Vac
•
Continuous Current: 5 A ac/dc
•
Input Current: <4 mA
•
Switch-on Current: 25 A ac/dc for 4s
•
Reaction Time: <20 ms
•
Max. Breaking current: 5 A ac up to 125 V ac
•
Fallback Time: <30 ms
•
5 A dc up to 50 V (resistive)
•
(Safe State of the Digital Inputs)
•
0.2 A dc at 300 V
•
Switching Thresholds: Un = 24 Vdc, 48 Vdc, 60 Vdc,
•
Max. Switching Voltage: 250 V ac/300 V dc
•
110 Vac / dc, 230 Vac / dc Un = 24 Vdc
•
Switching Capacity: 2000 VA
•
Switching Threshold 1 ON:
•
Contact Type: 1 Changeover Contact
•
Switching Threshold 1 OFF:
•
Terminals: Screw-type Terminals
•
Min. 19.2 Vdc
•
Max. 9.6 Vdc
•
Un = 48 V / 60Vdc
•
Switching Threshold 2 ON:
•
Switching Threshold 2 OFF:
•
Min. 42.6 Vdc
•
Max. 21.3 Vdc
•
Un = 110 / 120 Vac / dc
•
Switching Threshold 3 ON:
•
Switching Threshold 3 OFF:
Design Standards
•
Min. 88.0 Vdc / 88.0 Vac
•
Generic Standard EN 61000-6-2, EN 61000-6-3
Max. 44.0 Vdc / 44.0 Vac
•
Product Standard EC 60255-6, EN 50178
•
Un = 230 / 240 Vac / dc
•
UL 508 (Industrial Control Equipment)
•
Switching Threshold 4 ON:
•
CSA C22.2 No. 14-95 (Industrial Control Equipment)
•
Switching Threshold 4 OFF:
•
ANSI C37.90
•
Min. 184 Vdc / 184 Vac
•
Max. 92 Vdc / 92 Vac
•
Terminals: Screw-type terminal
•
Current and Ground Current Measurement
•
Nominal Currents: 1 A / 5 A
•
Max. Measuring Range:
• Up to 40 x In (phase currents)
Handshake: RTS and CTS
•
Connection: 9-pole D-Sub plug
RS485
Master/Slave: Slave
•
Connection: 6 screw-clamping terminals RM 3.5 mm (138 MIL)
(terminating resistors internal)
Tolerances of the Real Time Clock
•
Resolution: 1 ms
•
Tolerance: < 1 minute / month (+20°C)
Measuring Accuracy
Max. Measuring Range: Up to 40 x In (phase currents)
Up to 25 x In (ground current standard)
Up to 25 x In (ground current standard)
•
Frequency Range: 50 Hz / 60 Hz ± 10%
Up to 2.5 x In (ground current sensitive)
•
Accuracy: Class 0.5
Continuous Loading Capacity: 4 x In/continuously
•
Amplitude Error if I < 1 In: ±0.5% of the rated value
Overcurrent Proof:
• 30 x In / 10 s
•
Amplitude Error if I > In: ±0.5% of the measured value
•
Amplitude Error if I > 2 In: ±1.0% of the measured value
100 x In / 1 s
•
Resolution: 0.01 A
250 x In / 10 ms (1 half-wave)
•
Harmonics: Up to 20% 3rd harmonic ±2% Up to 20% 5th harmonic ±2%
•
Frequency Influence: <±2% / Hz in the range of ±5 Hz of the
parametrized nominal frequency
•
Temperature Influence: <±1% within the range of 0°C up to
+60°C
•
•
•
Baud Rates: 115200 Baud
•
•
•
•
•
•
•
•
Front Interface RS232
Power Consumption: Phase current inputs
• At In = 1A Burden = 0.15 mVA
•
At In = 5A Burden = 0.15 mVA
•
Ground current input
•
At In = 1A Burden = 0.35 mVA
•
At In = 5A Burden = 0.35 mVA
•
Frequency Range: 50 Hz / 60 Hz ±10%
•
Terminals: Screw-type terminals with integrated short-circuiters
(contacts)
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13
EMR-3000
Motor Protection Relay
Technical Data TD02602014E
Effective August 2010
Protection Elements Tolerances
NNote: The tripping delay relates to the time between pickup and trip. The tolerance of the operating time relates to the time between the measured value
has exceeded the threshold until the protection stage is alarmed.
Table 1. Protection Stages Tolerances
Overcurrent Protection Elements:
50P[x], 51P[x]
Range
Step
Tolerance
If the Pick-up Value is Exceeded the Module
Stage is Started
0.01 40.00 x in
0.01 x in
±1.5% of the Setting Value Resp. 1% x In
t
Tripping Delay
0.00 300.00 x s
0.01 x s
DEFT ±1% Resp. ±10 ms
Operating Time
Starting from I Higher than 1.1 x I>
Pickup
Resetting Ratio
97% or 0.5% x In
<35 ms
Disengaging Time
<45 ms
t-Multiplier
Time Multiplier Tripping Characteristic factor
IEC NINV
IEC VINV
IEC EINV
IEC LINV
ANSI MINV
ANSI VINV
ANSI EINV
Flat
It
I2t
I4t
0.05..2.00
0.01
±5%
Reset Mode
Only available if IEC Characteristics
IEC NINV
IEC VINV
IEC EINV
IEC LINV
0.00...60.00
0.01 x s
±1% Resp.
±10 ms
Reset Curves if ANSI Characteristics
ANSI MINV
ANSI VINV
ANSI EINV
Flat
It
I2t
I4t
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5%
EMR-3000
Motor Protection Relay
Technical Data TD02602014E
Effective August 2010
Table 1. Protection Stages Tolerances (Continued)
Ground Current Stages:
50G (X), 50N[x], 51G (X), 51N[x]
Pickup
If the Pick-up Value is Exceeded the Module
Stage is Started
Resetting Ratio
Range
Step
Tolerance
0.01 20.00 x in
0.01 x in
±1.5% of the Setting Value Resp. 1% In
0.01 x s
DEFT ±% Resp. ±10 ms
97% or 0.5% x In
t
Tripping Delay
Operating Time
Starting from IG Higher than 1.1 x IG>
0.00 300.00 x s
< +35 ms
Disengaging Time
< +45 ms
t-Multiplier
Tripping Characteristic Factor
IEC NINV
IEC VINV
IEC EINV
IEC LINV
ANSI MINV
ANSI VINV
ANSI EINV
Flat
It
I2t
I4t
0.05..2.00
0.01
±5%
Reset Mode
Only available if IEC Characteristics
IEC NINV
IEC VINV
IEC EINV
IEC LINV
0.00...60.00
0.01 x s
±1% resp.
±10 ms
5%
Reset Curves if ANSI Characteristics
ANSI MINV
ANSI VINV
ANSI EINV
Flat
It
I2t
I4t
Circuit Breaker Failure
Protection 50BF
I-CBF>
If the Pick-up Value is Exceeded the Module
Stage is Started
Resetting Ratio
Range
Step
Tolerance
0.0 0.1 x 1
0.01 x in
±1.5% of the Setting Value Resp. 1% In
0.5% x In
t-CBF
If the Delay Time is Expired an CBF Alarm
is Given Out
< +40 ms
Operating Time
Starting from I Higher than 1.3 x ICBF>
< +40 m
Disengaging Time
< +40 m
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15
EMR-3000
Motor Protection Relay
Technical Data TD02602014E
Effective August 2010
Ordering Information
Sample Catalog Number
The catalog number identification chart defines the electrical characteristics and operation features included in the EMR-3000. For
example, if the catalog number were EMR-3000A0BA1, the device
would have the following:
EMR-3000
(A)- Four Digital Inputs, Four Output Relays, 1 4-20 mA Analog
Output, URTD Interface
(0) - 5A/1A phase and ground CTs,
Power Supply Range: 19-300 Vdc, 40-250 Vac
(B) - Modbus-RTU (RS-485)
(A)- Without Conformal Coating
(1) - Projection Panel Mount
Table 2. Catalog Ordering Information for EMR-3000 Eaton
Motor Relay
EMR-3000 Eaton Motor Relay Removable Terminals
EMR-3000
A
0
B
A
1
Choose from the following options.
Hardware Option 1
4 DI, 4 Outputs, Removable Terminals, 1 4-20ma Analog Output, URTD interface, IRIG-B Small Display,
A
4 DI, 4 Outputs, Removable Terminals, Zone Interlocking, URTD interface, IRIG-B, Small Display
B
Hardware Option 2
Phase Current 5A/1A, Ground Current 5A/1A, Power Supply Range: 19-300 Vdc, 40-250 Vac
Phase Current 5A/1A Sensitive Ground Current, 0.5A/0.1A, Power Supply Range: 19-300 Vdc, 40-250 Vac*
0 (Zero)
1*
Communication Options
Modbus-RTU (RS-485)
B
Modbus-RTU (RS-485) + Modbus-TCP (RJ-45)
I
Conformal Coating Options
None
A
Conformal Coated Circuit Boards
B
Mounting Options
Standard Mount
0 (Zero)
Projection Panel Mount
*Consult factory for the availability of sensitive ground.
16
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1
EMR-3000
Motor Protection Relay
Technical Data TD02602014E
Effective August 2010
NOTES:
eaton corporation www.eaton.com
17
Technical Data TD02602014E
Effective August 2010
NOTES:
18
eaton corporation www.eaton.com
EMR-3000
Motor Protection Relay
EMR-3000
Motor Protection Relay
Technical Data TD02602014E
Effective August 2010
NOTES:
eaton corporation www.eaton.com
19
Technical Data TD02602014E
Effective August 2010
EMR-3000
Motor Protection Relay
These technical data materials are published solely for information
purposes and should not be considered all-inclusive. If further information is required, you should consult an authorized Eaton sales
representative.
The sale of the product shown in this literature is subject to the
terms and conditions outlined in appropriate Eaton selling policies
or other contractual agreement between the parties. This literature
is not intended to and does not enlarge or add to any such contract.
The sole source governing the rights and remedies of any purchaser
of this equipment is the contract between the purchaser and Eaton.
NO WARRANTIES, EXPRESSED OR IMPLIED, INCLUDING
WARRANTIES OF FITNESS FOR A PARTICULAR PURPOSE OR
MERCHANTABILITY, OR WARRANTIES ARISING FROM COURSE
OF DEALING OR USAGE OF TRADE, ARE MADE REGARDING
THE INFORMATION, RECOMMENDATIONS, AND DESCRIPTIONS
CONTAINED HEREIN. In no event will Eaton be responsible to the
purchaser or user in contract, in tort (including negligence), strict
liability or otherwise for any special, indirect, incidental or consequential damage or loss whatsoever, including but not limited to
damage or loss of use of equipment, plant or power system, cost
of capital, loss of power, additional expenses in the use of existing
power facilities, or claims against the purchaser or user by its customers resulting from the use of the information, recommendations
and description contained herein.
Eaton Corporation
Electrical Group
1000 Cherrington Parkway
Moon Township, PA 15108
United States
877-ETN-CARE (877-386-2273)
Eaton.com
© 2010 Eaton Corporation
All Rights Reserved
Printed in USA
Publication No. TD02602014E / TBG000421
August 2010
PowerChain Management is a registered
trademark of Eaton Corporation.
All other trademarks are property of their
respective owners.
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