3-8 Communications Date Code 970103
SEL-251, -2, -3 Instruction Manual
BREAKER also displays the date and time when circuit breaker trip counters and interrupted
current sums were last reset (set to zero). Cumulative currents appear in amperes.
=>BREAKER <ENTER>BREAKER <ENTER>
Example 21.6 kV distribution feeder Date: 04/01/93 Time: 09:09:58
Rly Trips=15 From: 1/1/91 11:01:31
IA=42650 IB=37910 IC=34200
Ext Trips=2 From: 1/1/91 11:01:31
IA=650 IB=670 IC=620
=>
If power to the relay is interrupted, the accumulated circuit breaker information is lost.
If the 52A, !52A, 52AR, or !52AR function is not assigned to an input, circuit breaker trips and
interrupted currents cannot be accumulated.
BREAKER R
BREAKER R resets (sets to zero) the circuit breaker trip counters and interrupted current sums.
The relay also stores reset date and time.
=>BREAKER R <ENTER>BREAKER R <ENTER>
Reset Trip Counters and Current Sums:
Are you sure (Y/N) ? Y <ENTER>Y <ENTER>
Example 21.6 kV distribution feeder Date: 04/01/93 Time: 09:10:30
Rly Trips=0 From: 4/2/91 09:10:30
IA=00 IB=00 IC=00
Ext Trips=0 From: 4/2/91 09:10:30
IA=0 IB=0 IC=0
=>
DATE mm/dd/yy
DATE displays the date stored by the internal calendar/clock. To set the date, type DATE
mm/dd/yy <ENTER>.
To set the date to April 1, 1993, enter:
=>DATE 4/1/93 <ENTER>DATE 4/1/93 <ENTER>
4/1/93
=>
The relay sets the date, pulses the ALARM relay closed as it stores the year in EEPROM (if the
year input differs from the year stored), and displays the new date.
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