Application/inputs and outputs
52
PEM533_D00013_00_M_XXEN/06.2015
7.7.2 unbalance
The device can measure voltage and current unbalances.
The following calculation method is applied:
Note: Ø means the average value
Harmonics
current
THD
THD
THD
TEHD
TEHD
TEHD
TOHD
TOHD
TOHD
k-factor
k-factor
k-factor
2
nd
harmonic
2
nd
harmonic
2
nd
harmonic
…
…
…
31
st
harmonic
31
st
harmonic 31
st
harmonic
L1
L2
L3
[|
U
L1
– Ø
U
|,|
U
L2
– Ø
U
|,|
U
L3
– Ø
U
|]
max
Ø
U
x 100 %
Voltage
unbalance
=
[|
I
1
– Ø
I
|,|
I
2
– Ø
I
|,|
I
3
– Ø
I
|]
max
Ø
I
x 100 %
Current
unbalance
=
Содержание PEM533
Страница 24: ...Installation and connection 24 PEM533_D00013_00_M_XXEN 06 2015...
Страница 86: ...Modbus Register Map 86 PEM533_D00013_00_M_XXEN 06 2015...
Страница 90: ...Technical data 90 PEM533_D00013_00_M_XXEN 06 2015...
Страница 93: ...INDEX 93 PEM533_D00013_00_M_XXEN 06 2015...
Страница 94: ......
Страница 95: ......