GE 269Plus Instruction Manual page 101

3 SETUP AND USE
Table 3–4: TRIP/ALARM MESSAGES AND FAULT DIAGNOSIS
PRI INFORM ATION LIN E
12
STATOR RTD TRIP
RTD # X
13
RTD TRIP
RTD # X
14
ACCEL. TIME TRIP
15•
PHASE REVERSAL TRIP
16
UNDERCURRENT TRIP
17
SPEED SWITCH TRIP
18
DIFFERENTIAL INPUT TRIP
19
SPARE INPUT TRIP
20•
UNDERVOLTAGE TRIP
21•
OVERVOLTAGE TRIP
22•
POWER FACTOR TRIP
23
OVERLOAD WARNING
TIME TO TRIP = XXXXX
24
GROUND FAULT ALARM
G/F = XX PERCENT
25
UNBALANCE ALARM
U/B = XX PERCENT
26
UNDERCURRENT ALARM
I(3 ph avg) = XXXX A RMS
• • • • Available only if a GE Power Management meter (MPM) is installed and on-line (see Setpoints page 7, line 2)
GE Power Management
Courtesy of NationalSwitchgear.com
EXPLA NATION
Stator RTD Trip Level temperature
exceeded on at least 1 stator RTD.
= XXX C
RTD Trip Level temperature
exceeded.
= XXX C
Motor did not enter a normal running
state (i.e. phase current < FLC)
within Acceleration Time setpoint.
Phases not connected to motor in
proper sequence.
Phase current less than U/C Trip
setpoint for a time period greater
than the U/C trip time delay.
Non-closure of speed switch
contacts within Speed Switch Time
Delay
Closure of differential relay contacts. Differential relay trip
Spare Input contact closure
Low incoming voltage from
substation.
High incoming voltage from
substation.
Fault in excitation control system.
Phase current greater than
Immediate O/L Level setpoint.
Ground Fault Alarm Level exceeded
for a time greater than the Ground
Fault Time Delay.
Unbalance Alarm Level exceeded
for a time greater than the
Unbalance Time Delay.
Phase current less than
Undercurrent Alarm Level for a time
greater than the Undercurrent Alarm
Time Delay.
269Plus Motor Management Relay
TRIP/ALARM MODE
SU GG ESTION S MANUAL
SECTION
Check motor ventilation 3.18
and ambient temperature.
Allow motor to cool.
3.19
Excessive load or locked 3.9
rotor on start.
Check incoming phase 3.21
sequence and VT polarity.
Check system for loss of 3.14
load.
Locked motor on start 2.16
2.15
Check device connected
to Spare Input terminals
Adjust transformer tap
changer.
Adjust transformer tap
changer.
Check excitation.
Reduce motor load. 3.17
Check motor windings for 3.12
shorts, moisture, or
conductive particles.
Check incoming phases 3.11
for unbalance.
Check system for loss of 3.14
load.
3
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45