AEMC PowerPad III 8336 User Manual page 125

(6) The energy is equivalent to more than 114 years of the associated maximum power (unity ratios).
(7) n is the highest order for which the harmonic ratio is non-zero.
max
(8) With SL261 clamp (100mV/A)
(9) With J93 clamp, for a 2-wire single-phase connection (phase-to-ground voltage).
(10) The energy corresponds to more than 190 years at maximum power Pdc (unit ratios).
Quantities associated with power
Measurement
Phase differences of
fundamentals
cos Φ-(DPF)
tan Φ
Voltage unbalance (UNB)
Current unbalance (UNB)
(1) |tan Φ| = 32,767 corresponds to Φ = ±88.25° + k × 180° (k being a natural number)
Quantities concerning the spectral composition of the signals
Measurement
Voltage harmonic ratio (τ )
n
Current harmonic ratio (τ )
n
(excluding AmpFlex & MiniFlex)
Current harmonic ratio (τ )
n
(AmpFlex & MiniFlex)
Total voltage harmonic distortion
(THD) (referred to the fundamental)
of voltage
Total current harmonic distortion
(THD) (referred to the fundamental)
of current
(excluding AmpFlex & MiniFlex)
Total current harmonic distortion
(THD) (referred to the fundamental)
of current
(AmpFlex & MiniFlex)
Total voltage harmonic distortion
(THD) (referred to the signal without
DC) of voltage
122
Measurement range
Minimum Maximum
-179° 180°
-1 1
-32.77 32.77
(1) (1)
0% 100%
0% 100%
Measurement range
Minimum Maximum
1500%f
0%
100%r
1500%f
0%
100%r
1500%f
0%
100%r
0% 999.9%
0% 999.9%
0% 999.9%
0% 100%
Display resolution Maximum intrinsic accuracy
1°
0.001
0.001
tan Φ < 10
0.01
tan Φ ≥ 10
0.1%
0.1%
Display resolution Maximum intrinsic accuracy
0.1%
τ
< 1000%
n
1%
τ ≥ 1000%
n
0.1%
±(2% + (n × 0.2%) + 10cts)
τ < 1000%
n
1%
±(2% + (n × 0.6%) + 5cts)
τ ≥ 1000%
n
0.1%
±(2% + (n × 0.3%) + 5cts)
τ < 1000%
n
1% ±(2% + (n × 0.6%) + 5cts)
τ ≥ 1000%
n
0.1%
si ∀ n ≥ 1. τ
0.1%
±(2% + (n
±(2% + (n
si ∀ n ≥ 1. τ
0.1%
±(2% + (n
±(2% + (n
0.1%
Power Quality Analyzer PowerPad
±2°
±1° for Φ
±5cts for cos Φ
±1° for Φ
±3cts
UNB ≤ 10%
±10cts
UNB > 10%
±10cts
±(2.5% + 5cts)
n ≤ 25
n > 25
n ≤ 25
n > 25
±(2.5% + 5cts)
±(2.5% + 5cts)
≤ (100 ÷ n) [%]
n
or
× 0.2%) + 5cts)
max
≤ 25
n
max
× 0.5%) + 5cts)
max
n > 25
max
±(2.5% + 5cts)
≤ (100 ÷ n ) [%]
2
n
or
× 0.3%) + 5cts)
max
≤ 25
n
max
× 0.6%) + 5cts)
max
n > 25
max
±(2.5% + 5cts)
III Model 8336
®