4-5
Location Message Line Description
A 3.1
ACTUAL VALUES
MAINTENANCE DATA
The actual values page 3 header. This page allows the maintenance
related data, which the Relay has collected, to be viewed. This data
remains in memory even if the control power is removed from the Relay.
Information on the number of breaker trips and accumulated breaker trip
current is stored on this page for use in scheduling breaker maintenance.
A 3.2
BRKR mm/dd/yy
DATE AUG 23,1988
The new breaker in service date is entered here in the form:
Month:Day:Year.
For example, if August 04, 1992 was the date then the following would be
entered:
08:04:92
A 3.3
BREAKER TRIPS
79
This is the total number of times that the feeder circuit breaker controlled
by the Relay has been tripped since the breaker was put in service. The
maximum number of trips displayable is 10000. If the maximum number of
trips exceeds 10000, *** will be displayed. This figure may be useful for
scheduling mechanical inspections of the breaker.
A 3.4
ACCUMULATED KA
PHASE A 566
This is the square of the Kiloamps feeder current measured right at the
time that the breaker delay rating has elapsed and the breaker is open.
This measurement is made at each trip of the breaker and added to the
previous accumulated value. This accumulated value gives an indication of
breaker pole wear and can be used to schedule inspections.
A 3.5
ACCUMULATED KA
PHASE B 568
This is the accumulated sum of the Kiloamps squared phase B current.
A 3.6
ACCUMULATED KA
PHASE C 765
This is the accumulated sum of the Kiloamps squared phase C current.
A 3.7
MAINTENANCE DATA
CLEAR? NO
This message asks if you want to clear the maintenance data which has
been collected to date. Use the NEXT CHOICE key to display YES or NO
and then store the value.
A 3.8
DATA CLEARED
LAST:AUG 04,1992
This is the date on which the maintenance data was last cleared in
message A 3.7. This date is automatically entered by the Relay, when the
data is cleared. All the maintenance data in this page has been collected
from the date shown here.
A 3.9
MAINTENANCE DATA
END OF PAGE
The last line of page 3, actual values. Press the PAGE key to view page 4.
L
A
ACTUAL VALUES MODE - MAINTENANCE DATA
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