AEMC instruments 2136.35, User Manual, Page: 109 / 144

Power Quality Analyzer PowerPad
®
IV Model 8345 101
Measurement
Measurement Range Display
Resolution
Max Intrinsic Error
Min Max
Total harmonic
distortion (THD)
of the current with
respect to the
fundamental
(with AmpFlex
®
and MiniFlex
®
)
0 % 999.9 % 0.1 %
±(2.5 % + 5 pt)
if Ɐ n ≥ 1, t
n
≤ (100 ÷ n
2
) [%]
or
±(2 % + (n
max
× 0.3 %) + 5 pt)
n
max
≤ 25
±(2 % + (n
max
× 0.6 %) + 5 pt)
n
max
> 25
Total harmonic
distortion (THD) of
voltage with respect
to the signal without
DC
0 % 100 % 0.1 % ±(2.5 % + 5 pt)
Total harmonic
distortion (THD)
of the current with
respect to the signal
without DC
(without AmpFlex
®
and MiniFlex
®
)
0 % 100 % 0.1 %
±(2.5 % + 5 pt)
if Ɐ n ≥ 1, t
n
≤ (100 ÷ n) [%]
or
±(2 % + (n
max
× 0.2 %) + 5 pt)
n
max
≤ 25
±(2 % + (n
max
× 0.5 %) + 5 pt)
n
max
> 25
The current’s total
harmonic distortion
(THD) with respect
to the signal without
DC
(with AmpFlex
®
and MiniFlex
®
)
0 % 100 % 0.1 %
±(2.5 % + 5 pt)
if Ɐ n ≥ 1, t
n
≤ (100 ÷ n
2
) [%]
or
±(2 % + (n
max
× 0.3 %) + 5 pt)
n
max
≤ 25
±(2 % + (n
max
× 0.6 %) + 5 pt)
n
max
> 25
Harmonic loss factor
(FHL)
1 99.99 0.01
±(5 % + (n
max
× 0.4 %) + 5 pt)
n
max
≤ 25
±(10 % + (n
max
× 0.7 %) + 5 pt)
n
max
> 25
K factor (KF) 1 99.99 0.01
±(5 % + (n
max
× 0.4 %) + 5 pt)
n
max
≤ 25
±(10 % + (n
max
× 0.7 %) + 5 pt)
n
max
> 25
Phase differences
of harmonics (order
≥ 2)
-179 ° 180 ° 1 ° ±(1.5 ° + 1 ° x (n ÷ 12.5))
The highest order when the harmonic level is not zero is n
max