B.17
Date Code 20060320 Instruction Manual SEL-311C Relay
Firmware Upgrade Instructions
Step 6. If you use the Breaker Wear Monitor, type BRE <Enter> to
check the data and see if the relay retained breaker wear data
through the upgrade procedure.
If the relay did not retain these data, use the BRE Wn
command to reload the percent contact wear values for each
pole of Circuit Breaker n (n = 1, 2, 3, or 4) you recorded in C.
Save Settings and Other Data on page 6.
Step 7. Apply current and voltage signals to the relay.
Step 8. Type MET <Enter> and verify that the current and voltage
signals are correct.
Step 9. Use the TRIGGER and EVENT commands to verify that the
magnitudes of the current and voltage signals you applied to
the relay match those displayed in the event report.
If these values do not match, check the relay settings and
wiring.
I. Return the Relay to Service
Step 1. Follow your company procedures for returning a relay to
service.
Step 2. Autoconfigure the SEL communications processor port if you
have an SEL communications processor connected to the relay.
This step reestablishes automatic data collection between the
SEL communications processor and the relay. Failure to
perform this step can result in automatic data collection failure
when cycling communications processor power.
The relay is now ready for your commissioning procedure.
Factory Assistance
We appreciate your interest in SEL products and services. If you have
questions or comments, please contact us at:
Schweitzer Engineering Laboratories, Inc.
2350 NE Hopkins Court
Pullman, WA USA 99163-5603
Telephone: (509) 332-1890
Fax: (509) 332-7990
Internet: www.selinc.com
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