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Power Quality
83
PEM735_D00084_00_M_XXEN/02.2015
9. Power Quality
9.1 Fundamentals
PEM575 also provides the fundamental components (related to f
(0)
) for the measu-
red quantities listed in the following table.
Tab. 9.1: Fundamental components
9.2 Harmonic distortion
The device provides an analysis of
Total Harmonic Distortion (THD)
Even total harmonic distortion (TEHD)
odd total harmonic distortion (TOHD)
k-factor
all harmonics up to the 63
rd
order
An evaluation of the harmonic components takes place provided that there is a cur-
rent flow of at least 150 mA (current input 1 A) resp. 750 mA (current input 5 A).
Individual harmonic distortions (THD) or individual distortion factors (THF) are de-
termined.
Fundamental components
U
L1(f0)
U
L2(f0)
U
L3(f0)
Ø
U
LN (f0)
U
L1L2(f0)
U
L2L3(f0)
U
L3L1(f0)
Ø
U
LL(f0)
I
1(f0)
I
2(f0)
I
3(f0)
Ø
I
(f0)
P
L1(f0)
P
L2(f0)
P
L3(f0)
P
ges (f0)
Q
L1(f0)
Q
L2(f0)
Q
L3 (f0)
Q
ges (f0)
S
L1 (f0)
S
L2 (f0)
S
L3 (f0)
S
ges (f0)
λ
L1(f0)
λ
L2 (f0)
λ
L3 (f0)
λ
ges(f0)
I
4 (f0)
(measured)
Содержание LINETRAXX PEM575 Series
Страница 8: ......
Страница 12: ...Making effective use of this document 12 PEM735_D00084_00_M_XXEN 02 2015 ...
Страница 28: ...Installation and connection 28 PEM735_D00084_00_M_XXEN 02 2015 ...
Страница 62: ...Application inputs and outputs 62 PEM735_D00084_00_M_XXEN 02 2015 ...
Страница 82: ...Logging 82 PEM735_D00084_00_M_XXEN 02 2015 ...
Страница 88: ...Power Quality 88 PEM735_D00084_00_M_XXEN 02 2015 ...
Страница 162: ...Modbus Register Map 162 PEM735_D00084_00_M_XXEN 02 2015 ...
Страница 166: ...Technical data 166 PEM735_D00084_00_M_XXEN 02 2015 ...
Страница 170: ...INDEX 170 PEM575_D00016_00_M_XXEN 04 2015 ...
Страница 171: ......