Megger MPQSIM, Руководство пользователя

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ADDENDUM C - SAMPLE POWER QUALITY TRAINING
AVTMMPQSIM Rev 1 May 2017
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12. View the Data on the Unit
a. Allow the unit to record for at least 10 minutes to obtain enough data for
adequate charts.
b. Stop the unit recording.
c. Press the HOME button.
d. Select VIEW DATA.
View the RMS Charts: Scroll through the phase and note the RMS variation
throughout the test period. The RMS variation should
not exceed 10% of nominal for 95% of the test interval.
It is recommended that this value is measured in 10
minute intervals over a period of 1 week.
View the Unbalance Charts: View the Unbalance data and note the unbalance
deviation throughout the test period. It is recommended
that the voltage unbalance does not exceed 2% of
nominal for 95% of the test interval. It is recommended
that this value is measured in 10 minute intervals over a
period of 1 week.
View the THD Chart: View the THD data for the various channels and note
the deviation throughout the test period. It is
recommended that the voltage THD does not exceed
8% of nominal for 95% of the test interval. It is
recommended that this value is measured in 10 minute
intervals over a period of 1 week.
View the Harmonic Charts: View the Zero Sequence harmonics and Negative
Sequence Harmonics. The PQ simulator will generate
3rd and 5th order harmonic. The third harmonic is a
zero sequence harmonic. The 5th harmonic is a negative
sequence harmonic. Per EN50160 standards 3rd
harmonic should not exceed 5% of the declared value.
The 5th harmonic should not exceed 6% of the declared
value.
IEEE519 recommends that the individual harmonics do not exceed 5% of the
fundamental value.
13. View the Event Data Charts
View the Dip/Sag events: Note the start and stop times as well as the duration and
the channel that triggered the event.
View the Swell events: Note the start and stop times as well as the duration and
the channel that triggered the event.
View the THD events: Note the start and stop times as well as the duration and
the channel that triggered the event.