AEMC PowerPad 8436 User Manual page 91

Quantities concerning the spectral composition of the signals
Measurement
Voltage harmonic ratio (τ
Current harmonic ratio (τ
(non-Flex )
®
Current harmonic ratio (τ
(AmpFlex & MiniFlex )
® ®
Total voltage harmonic distortion (THD)
(referred to the fundamental) of voltage
Total current harmonic distortion (THD)
(referred to the fundamental) of current
(non-Flex )
®
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
Total current harmonic distortion (THD)
(referred to the signal without DC) of
current (non-Flex )
®
Total current harmonic distortion (THD)
(referred to the signal without DC) of
current (AmpFlex & MiniFlex
®
Harmonic loss factor (FHL)
K factor (FK)
Phase shifts of harmonics (order ≥ 2)
NOTE: n is the highest order for which the harmonic ratio is non-zero.
max
Measurement range
Minimum
)
0 %
n
)
0 %
n
)
0 %
n
0 %
0 %
0 %
0 %
0 %
0 %
)
®
1
1
-179°
Display resolution
Maximum
0.1 %
τ < 1000 %
1500 %f
n
100 %r
1 %
≥ 1000 %
τ
n
0.1 %
τ < 1000 %
1500 %f
n
100 %r
1 %
≥ 1000 %
τ
n
0.1 %
< 1000 %
τ
1500 %f
n
100 %r
1 %
τ ≥ 1000 %
n
999.9 % 0.1 %
999.9 % 0.1 %
999.9 % 0.1 %
100 % 0.1 %
100 % 0.1 %
100 % 0.1 %
99.99 0.01
99.99 0.01
180° 1°
91
Maximum intrinsic error
±(2.5 % + 5 ct)
±(2 % + (n × 0.2 %) + 10 ct)
n ≤ 25
±(2 % + (n × 0.6 %) + 5 ct)
n > 25
±(2 % + (n × 0.3 %) + 5 ct)
n ≤ 25
±(2 % + (n × 0.6 %) + 5 ct)
n > 25
±(2.5 % + 5 ct)
±(2.5 % + 5 ct)
if ∀ n ≥ 1. τ ≤ (100 ÷ n) [%]
n
or
±(2 % + (n × 0.2 %) + 5 ct)
max
n ≤ 25
max
±(2 % + (n × 0.5 %) + 5 ct)
max
n > 25
max
±(2.5 % + 5 ct)
if ∀ n ≥ 1. τ ≤ (100 ÷ n 2 ) [%]
n
or
±(2 % + (n × 0.3 %) + 5 ct)
max
n ≤ 25
max
±(2 % + (n × 0.6 %) + 5 ct)
max
n > 25
max
±(2.5 % + 5 ct)
±(2.5 % + 5 ct)
if ∀ n ≥ 1. τ ≤ (100 ÷ n) [%]
n
or
±(2 % + (n × 0.2 %) + 5 ct)
max
n ≤ 25
max
±(2 % + (n × 0.5 %) + 5 ct)
max
n > 25
max
±(2.5 % + 5 ct)
2
if ∀ n ≥ 1. τ ≤ (100 ÷ n ) [%]
n
or
±(2 % + (n × 0.3 %) + 5 ct)
max
n ≤ 25
max
±(2 % + (n × 0.6 %) + 5 ct)
max
n > 25
max
±(5 % + (n × 0.4 %) + 5 ct)
max
n ≤ 25
max
±(10 % + (n × 0.7 %) + 5 ct)
max
n > 25
max
±(5 % + (n × 0.4 %) + 5 ct)
max
n ≤ 25
max
±(10 % + (n × 0.7 %) + 5 ct)
max
n > 25
max
±(1.5° + 1° x (n ÷ 12.5)