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Power Quality Analyzer Model 8335
Minimum and Maximum half-cycle RMS values
(excluding neutral)
Min and max RMS phase-to-neutral voltages of phase (i+1) with i
∈
[0 ; 2].
Vmax [i] = max(Vhalf[i]), Vmin[i] = min(Vhalf[i])
Min and max RMS phase-to-phase voltages of phase (i+1) with i
∈
[0 ; 2].
Umax [i] = max(Uhalf[i]), Umin[i] = min(Uhalf[i])
Min and max RMS currents of phase (i+1) with i
∈
[0 ; 2].
Amax [i] = max(Ahalf[i]), Amin[i] = min(Ahalf[i])
NOTE:
The duration of the evaluation is left to the user’s discretion (reset by press
-
ing the
key).
Short-term flicker – 10 minute
(excluding neutral)
Method based on the IEC 61000-4-15 standard.
The input values are half-cycle phase-to-neutral voltages. Blocks 3 and 4 are cre-
ated digitally. The classifier of block 5 has 128 levels.
The value Vflk[i] is updated every 10 minutes (phase (i+1) with i
∈
[0 ; 2]).
Peak Values
(neutral except Upp and Upm – over 250ms)
Positive and negative phase-to-neutral peak voltages of phase (i+1) with i
∈
[0 ; 3]
Vpp[i]=max (V[i][n]), Vpm[i]=min (V[i][n]), n
∈
[0..NSC-1]
Positive and negative phase-to-phase peak voltages of phase (i+1) with i
∈
[0 ; 2]
Upp[i]=max (U[i][n]), Upm[i]=min (U[i][n]), n
∈
[0..NSC-1]
Positive and negative peak currents of phase (i+1) with i
∈
[0 ; 3]
App[i]=max (A[i][n]), Apm[i]=min (A[i][n]), n
∈
[0..NSC-1]
Shop for AEMC products online at:
1.877.766.5412
www.
PowerMeterStore
.ca
