GE Multilin 565, Instruction Manual

Page: 36 / 198

4-8
Location Message Line Description
ALARM: TRIP COIL
This message indicates that the present alarm is caused by an open in the
trip coil circuit.
** 565 requires Option Card **
ALARM: MTM COMM
This message indicates that the present alarm is caused by failure in MTM
communications.
** 565 requires Option Card **
A 5.3
CAUSE OF LAST
TRIP:
This message appears on the display for 2 seconds to advise the user that
the cause of the last trip will be displayed next. It will then disappear to be
replaced by the next message which will give the reason for the last trip of
the feeder breaker. One of the following messages will then be displayed.
A 5.4
TIME OVERCURRENT
PHASE A B C
This message indicates that the feeder breaker trip was caused by the
current in any or all of the phases A, B or C of the feeder exceeding the
phase time/overcurrent limits programmed in the setpoints mode. Phases
A, B and C are shown here.
TIME OVERCURRENT
GROUND
This message indicates that the trip was caused by the ground current
sensed by the 565 Relay exceeding the limits set by the timed/overcurrent
curve which was programmed in the setpoints mode.
INST OVERCURRENT
PHASE B
This message indicates that the trip was caused by the current in any or all
of the phases A, B or C exceeding the instantaneous limit set up in
setpoints mode. Phase B is shown here.
INST OVERCURRENT
GROUND
This message indicates that the feeder breaker was tripped due to the
ground current exceeding the instantaneous setpoint entered in setpoints
mode.
UNDERVOLTAGE
FAULT
This message indicates that the voltage sensed between phases or
between a phase and the neutral line dropped below the undervoltage
limits set in setpoints mode, causing a feeder breaker trip.
OVERVOLTAGE
FAULT
This message indicates that the voltage sensed between phases or
between a phase and the neutral line rose above the overvoltage limits set
in setpoints mode, causing a feeder breaker trip.
EXTERNAL TRIP #1
SWITCH 3
This message indicates which of four external trips, indicated by the switch
named, caused the breaker to trip. There are eight user programmable
switches named SW.1 to SW.8. Each of these may be assigned to one
external trip.
ANALOG INPUT
TRANS WNDG TEMP
This display indicates that the trip was caused by the analog input to the
565 Relay exceeding the limits specified in setpoints mode. If a name was
assigned to this analog input in setpoints mode, then this name will appear
in the message. A typical user-assigned name, “TRANS WNDG TEMP”
indicating a transformer winding temperature is shown for example.
POWER FACTOR
FAULT
This message indicates that the trip was caused by the MTM power factor
exceeding the limits specified in the setpoints mode.
** 565 requires
Option Card **
FREQUENCY
FAULT
This message indicates that the trip was caused by the MTM frequency
exceeding the limits specified in the setpoints mode.
** 565 requires
Option Card **
ACTUAL VALUES MODE - PRE-TRIP DATA