Date Code 20011009
SEL-701-1 Monitor
Commissioning
Monitor Commissioning Procedure
6.7
Step 17.
If your monitor is equipped with voltage inputs, check the following:
Phase voltage magnitudes should be nearly equal.
Phase voltage phase angles should be balanced and have proper
phase rotation.
The negative-sequence voltage magnitude, V2, and zero-
sequence voltage magnitude, 3V0, if shown, should both be
nearly zero.
NOTE:
If the monitor reports V1 near zero and V2 nearly equal
to VAB/1.74, there is a phase rotation problem. Verify the
monitor ac voltage connections and the phase rotation
setting, PHROT. A nonzero 3V0 meter value, if shown, typically
indicates a single-phase voltage connection problem.
Step 18.
The SEL-701-1 Monitor is now ready for continuous service.
Summary of Contents for SEL-701-1
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