Minimum And Maximum Half-Cycle Rms Values; Short-Term Flicker - 10 Minute (Excluding Neutral); Peak Values - AEMC 8335 Power Pad User Manual

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]),
Min and max RMS phase-to-phase voltages of phase (i+1) with i ∈ [0 ; 2].
Umax [i] = max(Uhalf[i]),
Min and max RMS currents of phase (i+1) with i ∈ [0 ; 2].
Amax [i] = max(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
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]
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Vmin[i] = min(Vhalf[i])
Umin[i] = min(Uhalf[i])
Amin[i] = min(Ahalf[i])
(excluding neutral)
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