RELÉ 369 GEK-106288H Modulo 6
RELÉ 369 GEK-106288H Modulo 6
Multilin
Actual Values
6.1 Overview
DIAGNOSTIC MESSAGES
See page –180.
POWER METERING
See page –184.
BACKSPIN METERING
See page –184.
LOCAL RTD
See page –185.
REMOTE RTD
See page –185.
DEMAND METERING
See page –186.
PHASORS
See page –187.
EVENT: 2
EVENT: 1
6.2 A1 Status
MOTOR STATUS MOTOR STATUS: Range: Stopped, Starting, Running, Overload, Tripped
Stopped
MOTOR THERMAL Range: 0 to 100% in steps of 1
CAPACITY USED: 0%
ESTIMATED TRIP TIME Range: Never, 0 to 65500 s in steps of 1
ON OVERLOAD: Never
These messages describe the status of the motor at the current point in time. The Motor
Status message indicates the current state of the motor.
Running FLA > phase current > 0 or starter status input = breaker/
contactor closed and motor was previously running
Overload motor previously running and phase current now > FLA
Tripped a trip has been issued and not cleared
The Motor Thermal Capacity Used message indicates the current level which is used by the
overload and cooling algorithms. The Estimated Trip Time On Overload is only active for
the Overload motor status.
LAST TRIP DATA CAUSE OF LAST TRIP: Range: No Trip to Date, cause of trip
No Trip to date
LAST TRIP Range: hour: min: seconds
TIME: 00:00:00
LAST TRIP Range: month day year
DATE: Feb 28 2007
A: 0 B: 0 Range: 0 to 100000 A in steps of 1
C: 0 A Pretrip
MOTOR LOAD Range: 0.00 to 20.00 in steps of 0.01
Pretrip 0.00 x FLA
CURRENT UNBALANCE Range: 0 to 100% in steps of 1
Pretrip: 0%
Immediately prior to a trip, the 369 takes a snapshot of the metered parameters along
with the cause of trip and the date and time and stores this as pre-trip values. This allows
for ease of troubleshooting when a trip occurs. Instantaneous trips on starting (< 50 ms)
may not allow all values to be captured. These values are overwritten when the next trip
occurs. The event record shows details of the last 40 events including trips.
DIAGNOSTIC MESSAGES No Trips or Alarms Range: No Trips or Alarms are Active, active
are Active alarm name and level, active trip name
Any active trips or alarms may be viewed here. If there is more than one active trip or
alarm, using the Line Up and Down keys will cycle through all the active alarm messages. If
the Line Up and Down keys are not pressed, the active messages will automatically cycle.
The current level causing the alarm is displayed along with the alarm name.
• OVERLOAD LOCKOUT TIMER: Determined from the thermal model, this is the
remaining amount of time left before the thermal capacity available will be sufficient
to allow another start and the start inhibit will be removed.
• START INHIBIT TIMER: If enabled this timer will indicate the remaining time for the
Thermal Capacity to reduce to a level to allow for a safe start according to the Start
Inhibit setpoints.
• STARTS/HOUR TIMER: If enabled this display will indicate the number of starts within
the last hour by showing the time remaining in each. The oldest start will be on the
left. Once the time of one start reaches 0, it is no longer considered a start within the
hour and is removed from the display and any remaining starts are shifted over to the
left.
• TIME BETWEEN STARTS TIMER: If enabled this timer will indicate the remaining time
from the last start before the start inhibit will be removed and another start may be
attempted. This time is measure from the beginning of the last motor start.
• RESTART BLOCK TIMER: If enabled this display will reflect the amount of time since the
last motor stop before the start block will be removed and another start may be
attempted.
The present state of the output relays will be displayed here. Energized indicates that the
NO contacts are now closed and the NC contacts are now open. De-energized indicates
that the NO contacts are now open and the NC contacts are now closed.
REAL TIME CLOCK DATE: 02/28/2007 Range: month/day/year, hour: minute: second
TIME: 00:00:00
The date and time from the 369 real time clock may be viewed here.
When the device is on the non-connected bus, the NETWORK STATUS message will
Note
All measured current values are displayed here. Note that the unbalance level is de-rated
below FLA. See the unbalance setpoints in Section 5.4.2 Thermal Model on page 5–126 for
more details.
Measured voltage parameters will be displayed here. These displays are only visible if
option M or B has been installed.
These actual values are only shown if the VT CONNECTION TYPE setpoint has been
programmed (i.e., is not set to “None”). The values for three phase power metering,
consumption and generation are displayed here. The energy values displayed here will be
in units of MWh/Mvarh or kWh/kvarh, depending on the S1 369 SETUP Ö DISPLAY
PREFERENCES ÖØ ENERGY UNIT DISPLAY setpoint. The energy registers will roll over to
zero and continue accumulating once their respective maximums have been reached. The
MWh/Mvarh registers will continue accumulating after their corresponding kWh/kvarh
registers have rolled over.
These displays are only visible if option M or B has been installed.
BACKSPIN METERING BACKSPIN FREQUENCY: Range: Low Signal, 1 to 120 Hz in steps of 0.01
Low Signal Only shown if option B installed and enabled.
Backspin metering parameters are displayed here. These values are shown if option B has
been installed and the ENABLE BACKSPIN START INHIBIT setting is “Yes”.
The temperature level of all 12 internal RTDs are displayed here if the 369 has option R
enabled. The programmed name of each RTD (if changed from the default) appears as the
first line of each message. These displays are only visible if option R has been installed.
The temperature level of all 12 remote RTDs will be displayed here if programmed and
connected to a RRTD module. The name of each RRTD (if changed from the default) will
appear as the first line of each message. These displays are only visible if option R has
been installed.
If communications with the RRTD module is lost, the RRTD MODULE
COMMUNICATIONS LOST message will be displayed.
OVERALL STATOR RTD HOTTEST OVERALL Range: –40 to 200°C or –40 to 392°F
STATOR TEMP: 70°C No RTD = open, Shorted = shorted RTD
HOTTEST STATOR RTD: Range: No RTD, Local 369, RRTD#1 to RRTD#4 (for RTD
Local 369 RTD#: 4 Name), 1 to 12 in steps of 1 (for RTD #)
The values for current and power demand are displayed here. Peak demand information
can be cleared using the CLEAR PEAK DEMAND command located in
S1 369 SETUP Ø CLEAR/PRESET DATA . Demand is only shown for positive real (kW) and
reactive (kvar) powers. Only the current demand will be visible if options M or B are not
installed.
6.3.9 Phasors
PATH: A2 METERING DATA ØØØØØØØØØ PHASORS
All angles shown are with respect to the reference phasor. The reference phasor is based
on the VT connection type. In the event that option M has not been installed, Van for Wye is
0 V, or Vab for Delta is 0 V, Ia will be used as the reference phasor
.
Reference Phasor VT Connection Type
Ia None
Van Wye
Vab Delta
Note that the phasor display is not intended to be used as a protective metering element.
Its prime purpose is to diagnose errors in wiring connections.
To aid in wiring, the following tables can be used to determine if VTs and CTs are on the
correct phase and their polarity is correct. Problems arising from incorrect wiring are
extremely high unbalance levels (CTs), erroneous power readings (CTs and VTs), or phase
reversal trips (VTs). To correct wiring, simply start the motor and record the phasors. Using
the following tables along with the recorded phasors, system rotation, VT connection type,
and motor power factor, the correct phasors can be determined. Note that Va (Vab if delta)
is always assumed to be 0° and is the reference for all angle measurements.
Common problems include: Phase currents 180° from proper location (CT polarity
reversed)
Phase currents or voltages 120° or 240° out (CT/VT on
wrong phase)
6.4.1 Description
This page contains the data the 369 learns to adapt itself to the motor protected.
The learned values for acceleration time and starting current are the average of the
individual values acquired for the last five successful starts. The value for starting current is
used when learned k factor is enabled.
The learned value for starting capacity is the amount of thermal capacity required for a
start determined by the 369 from the last five successful motor starts. The last five learned
start capacities are averaged and a 25% safety margin factored in. This guarantees
enough thermal capacity available to start the motor. The Start Inhibit feature, when
enabled, uses this value in determining lockout time.
The learned cool time constants and unbalance k factor are displayed here. The learned
value is the average of the last five measured constants. These learned cool time
constants are used only when the ENABLE LEARNED COOL TIMES thermal model setpoint
is "Yes". The learned unbalance k factor is the average of the last five calculated k factors.
The learned k factor is only used when unbalance biasing of thermal capacity is set on and
to learned.
Note that learned values are calculated even when features requiring them are turned off.
The learned features should not be used until at least five successful motor starts and
stops have occurred.
Starting capacity, starting current, and acceleration time values are displayed for the last
start. The average motor load while running is also displayed here. The motor load is
averaged over a 15 minute sliding window.
Clearing motor data (see Section 5.2.9: Clear/Preset Data on page –105) resets these
values to their default settings.
LOCAL RTD MAXIMUMS RTD #1 MAXIMUM Range: –40 to 200°C or –40 to 392°F
TEMPERATURE: 40°C No RTD = open, Shorted = shorted RTD
The maximum temperature level of all 12 internal RTDs will be displayed here if the 369 has
option R enabled. The programmed name of each RTD (if changed from the default) will
appear as the first line of each message.
These displays are only visible if option R has been installed and RTDs have been
programmed.
The maximum temperature level of the 12 remote RTDs for each RRTD will be displayed
here if the 369 has been programmed and connected to a RRTD module. The programmed
name of each RTD (if changed from the default) will appear as the first line of each
message. If an RRTD module is connected and no RRTDs are programmed, the display
reads NO RRTDS PROGRAMMED when an attempt is made to enter this actual values
page.
The number of trips by type is displayed here. When the total reaches 50000, the counter
resets to 0 on the next trip and continues counting. This information can be cleared with
the setpoints in the CLEAR/PRESET DATA section of setpoints page one. The date the
counters are cleared will be recorded.
NUMBER OF MOTOR STARTS, and NUMBER OF EMERGENCY RESTARTS values display the
number of motor starts and emergency restarts respectively. This information is useful for
troubleshooting a motor failure or in understanding the history and use of a motor for
maintenance purposes. When any of these counters reaches 50000, they are
automatically reset to 0.
The MOTOR RUNNING HOURS indicates the elapsed time since the 369 determined the
motor to be in a running state (current applied and/or starter status indicating contactor/
breaker closed). The NUMBER OF MOTOR STARTS, NUMBER OF EMERGENCY RESTARTS, and
MOTOR RUNNING HOURS counters can be cleared with the S1 369 SETUP Ø CLEAR/PRESET
DATA Ø CLEAR MOTOR DATA setpoint.
A breakdown of the last 512 events is available here along with the cause of the event and
the date and time. All trips automatically trigger an event. Alarms only trigger an event if
turned on for that alarm. Loss or application of control power, service alarm and
emergency restart opening and closing also triggers an event. After 512 events have been
recorded, the oldest one is removed when a new one is added. The event record may be
cleared in the setpoints page 1, clear/preset data, clear event record section.
The relay model and manufacturing information may be viewed here. The last calibration
date is the date the relay was last calibrated at GE Multilin.
This information reflects the revisions of the software currently running in the 369 Relay.
This information should be noted and recorded before calling for technical support or
service.