Qualitrol INFORMA PMD-A User Manual page 181

Appendix B – INFORMA PMD-A Functions
The following calculations are possible for 4U+3I-star cabling (Ph-N type).
Voltage
Current
Power
10 seconds
10/12 cycle
calculation
U Calculation
rms (1/2)
10/12 cycle
calculation
U Calculation
rms (1/2)
174
Parameters
Frequency
RMS
Zero Sequence
Positive Sequence
Negative Sequence
Unbalance and Zero
Unbalance
Harmonics (up to 50th
order)
Inter-harmonics (up to 50th
order)
THD(THD, THD Odd, THD
Even)
Flicker
instantaneous(Pinst)
Flicker short term (10
minutes)-Pst
Frequency (10 minutes)
Signaling Voltages
Under and Over Deviation
RMS
Zero Sequence
Positive Sequence
Negative Sequence
Unbalance and Zero
Unbalance
RMS
Harmonic (up to
50th order)
Inter-harmonics
TDD
k-Factor
RMS
Single Phase Active Power
Three Phase Active Power
Single Phase Reactive
Power
Three Phase Reactive
Power
Single Phase Apparent
Power
Three Phase Apparent
Power
Single Phase Distorted
Total Nos.
1
4
1
1
1
2
200
196
12
32
3
1
3
6
4
1
1
1
2
3
150
147
3
3
3
3
1
3
1
3
1
3
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