Megger MPQSIM, Руководство пользователя

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M
AVTMMPQSIM Rev 1 May 2017
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6. Source Reversal
a. View the demand values on the DVM screen of the MPQ Analyzer.
b. Set the Power Direction Switch on the PQ Simulator to SINK. The KW values are
now negative, indicating reversed power flow. The power is now flowing from the load to the
source. This can be due to local sources such as solar power locations, distributed generation
devices
.
If the KW is negative when the power quality device is connected this can be an
indication that the current probes are backwards. Verify the arrows on the current
probes point toward the load.
NOTE: This can also be viewed in the scope mode and in the unbalance vectors
as currents being 180
°
out of phase.
c. Set the Power Direction Switch on the PQ Simulator to SOURCE.
7. Power Triangle
a. View the demand values on the DVM screen of the MPQ Analyzer.
NOTE:
Active Power (P):
measured in W / (KW): Performs real work
Reactive Power (Q):
measured in VAR / (KVAR): Out of phase power,
does not perform real work.
Apparent Power (S):
measured in VA / (KVA)
POWER TRIANGLE
b. Change the Phase A Current phase angle on the PQ Simulator to -30°. The
KVAR on Phase A increased due to the increase in reactive current caused by the added
inductive load
.