701 Motor Protection Relay Date Code 20010719
Commissioning
Relay Commissioning Procedure
7.2
Relay Commissioning Procedure
Introduction
This procedure is a guideline to help you enter settings into the SEL-701 Relay
and verify that it is properly connected. Modify the procedure as necessary to conform
with your standard practices.
Use the commissioning procedure at initial relay installation; you should not need
to repeat it unless major changes are made to the relay electrical connections.
Required Equipment
SEL-701 Relay, installed and connected according to your
protection design
PC with serial port, terminal emulation software or SEL-701PC
software, and serial communication cable (for relay setting entry)
SEL-701 Relay Settings Sheets copied from Appendix F: SEL-701
Relay Settings Sheets or SEL-701PC software settings files and filled
out with settings appropriate to your application and protection
cabinet design
AC and dc elementary schematics and wiring diagrams for this relay
installation
Continuity tester
Protective relay ac test source:
Minimum: Single-phase voltage plus single-phase current with
ability to control phase angle between signals
Preferred: Two- or three-phase voltage plus three-phase current with
ability to control phase angle between signals
Commissioning Procedure
Step 1. Ensure that control power and ac signals are removed from the
SEL-701 Relay by opening the appropriate breaker(s) or removing
fuses. Isolate the relay TRIP contact.
Step 2. Verify the accuracy and correctness of the ac and dc connections by
performing point-to-point continuity checks on the circuits associated
with the SEL-701 Relay.
Step 3. Apply ac or dc control power to the relay. Within a moment of
energizing the relay, the green enable LED (Relay Enabled) on the
front panel should illuminate, and the relay self-test ALARM
b-contact (B17, B18) should open.
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