Schweitzer Engineering Laboratories SEL-751 - Figure 7.17 Breaker Monitor Report

7.24
SEL-751 Relay Instruction Manual Date Code 20170927
Communications
Communications Protocols
To start the test, enter ANA A0301 75 5.5 at the Access Level 2 prompt:
Example 2. The following is an example of the ramp mode when the
analog output signal type is 4–20 mA for a 9.0 minute test.
To check the device output, calculate the current/time (mA/min) output as
follows:
To start the test, enter ANA AO301 R 9.0 at the Access Level 2 prompt:
BRE Command (Breaker Monitor Data)
Use the BRE command to view the breaker monitor report. See Breaker
Monitor on page 5.19 for further details on the breaker monitor.
BRE Command (Preload/Reset Breaker Wear)
The BRE W command only saves new settings after the Save Changes
(Y/N)?
message. If you make a data entry error while using the BRE W
command, the values echoed after the
Invalid format, changes not
saved
message are the previous BRE values, unchanged by the aborted
BRE W attempt.
=>> ANA A0301 75 5.5 <Enter>
Outputting 16.00 mA to Analog Output Port for 5.5 minutes.
Press any key to end test
=>>ANA AO301 R 9.0 <Enter>
Ramping Analog Output at 1.78 mA/min; full scale in 9.0 minutes.
Press any key to end test
Output
20.00 mA 4.00 mA–
9.0 min
--------------------------------------------------- 1.78 mA/min==
=>BRE <Enter>
SEL-751 Date: 12/04/2010 Time: 14:26:57
FEEDER RELAY Time Source: External
Trip Counters
Rly Trips (counts) 32
Ext Trips (counts) 0
Cumulative Interrupted Currents
IA IB IC
Rly Trips (kA) 538.1 483.6 485.5
Ext Trips (kA) 0.0 0.0 0.0
Breaker Contact Wear
A B C
Wear (%) 48 37 36
LAST RESET 11/25/2010 11:16:21
=>
Figure 7.17 Breaker Monitor Report