4-9
Location Message Line Description
A 5.5
PHASE A PRE-TRIP
CURRENT 16100 A
This is the RMS current flowing in phase A measured over one cycle of
feeder current, at the time that the 565/575 Relay initiated the breaker trip.
A 5.6
PHASE B PRE-TRIP
CURRENT 15900 A
This is the RMS current flowing in phase B measured over one cycle of
feeder current, at the time that the 565/575 Relay initiated the breaker trip.
A 5.7
PHASE C PRE-TRIP
CURRENT 16200 A
This is the RMS current flowing in phase C measured over one cycle of
feeder current, at the time that the 565/575 Relay initiated the breaker trip.
A 5.8
GROUND PRE-TRIP
CURRENT 250 A
This is the RMS ground current sensed by the Relay measured over one
cycle of feeder current, at the time when the 565/575 Relay initiated the
breaker trip.
Messages A 5.9 to 5.11 will only appear if an Open Delta system is chosen in Setpoints mode.
A 5.9
PRE-TRIP VOLTAGE
A-B 13.80 kV
This is the voltage between phases A and B when the 565 Relay caused
the feeder breaker to trip due to a system fault.
A 5.10
PRE-TRIP VOLTAGE
B-C 13.80 kV
This is the voltage between phases B and C when the 565/575 Relay
caused the feeder breaker to trip due to a system fault.
A 5.11
PRE-TRIP VOLTAGE
C-A 13.80 kV
This is the voltage between phases C and A when the 565/575 Relay
caused the feeder breaker to trip due to a system fault.
Messages A 5.12 to 5.14 will only appear if a Wye system is chosen in Setpoints mode.
A 5.12
PRE-TRIP VOLTAGE
A-N 7.85 kV
This is the voltage between phase A and the neutral line when the 565/575
Relay caused the feeder breaker to trip due to a system fault.
A 5.13
PRE-TRIP VOLTAGE
B-N 7.85 kV
This is the voltage between phase B and the neutral line when the 565/575
Relay caused the feeder breaker to trip due to a system fault.
A 5.14
PRE-TRIP VOLTAGE
C-N 7.85 kV
This is the voltage between phase C and the neutral line when the 565/575
Relay caused the feeder breaker to trip due to a system fault.
A 5.15
FREQUENCY AT
TRIP 60.2 Hz
This is the feeder frequency, measured in Hz, at the time when the 565/
575 Relay caused the breaker to trip. If an MTM is communicating with the
565/575 at the time of the trip, the frequency recorded will be from the
MTM.
A 5.16
DATE OF TRIP
AUG 04,1992
This is the date when the 565/575 Relay last tripped the feeder breaker
due to a system fault.
A 5.17
TIME OF TRIP
14:20:42
This is the time when the 565/575 Relay last tripped the feeder breaker. It
is laid out in the following form:
Hour:Minute:Second
L
A
ACTUAL VALUES MODE - PRE-TRIP DATA
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