janitza UMG 103-CBM, Руководство пользователя и технические данные

Страница: 32 / 62

UMG 103-CBM www.janitza.com
32
INFORMATION
The device only allows the setting of one current
transformer ratio for all phases!
You can configure current transformer ratios
conveniently via
·The GridVis
®
software.
UMG
S
2
I
S
1
P
1
P
2
Einspeisung 1
Supply 1 Einspeisung 2
Supply 2
1P
1
1P
2
(K)
(L)
(k)
(l)
1S
2
1S
1
1S
1
1S
2
2S
1
2S
2
2S
1
2S
2
(k)
(l)
(K)
(L)
2P
1
2P
2
Verbraucher A
Consumer A Verbraucher B
Consumer B
7.5.2 Ammeter
If you want to measure the current not only with
the UMG, but also with an ammeter, connect the
ammeter to the UMG in series.
UMG
S
2
I
S
1
Einspeisung
Supply Verbraucher
Consumer
A
(k)S
1
S
2
(l)
P
2
(L) (K)P
1
Fig. Circuit diagram with additional ammeter con-
nected in series
7.5.3 Current direction
You can correct the current direction for each
phase individually via the serial interfaces pro-
vided. This means that in the case of incorrect
connection, no subsequent reconnection of the
current transformers is necessary.
7.5.4 Summation current measurement
For a summation current measurement via two
current transformers, first set their total ratio in the
device. This is done in the GridVis software
Example:
The current is measured via two current trans-
formers. Both current transformers have a ratio of
1000/5 A. The summation measurement is car-
ried out with a summation current transformer of
5+5/5 A.
The device must then be adjusted as follows:
Primary current:
1000 A + 1000 A = 2000 A
Secondary current: 5 A
INFORMATION
The red LED blinks if the measuring range is ex-
ceeded, see chapter „4.2 LED display patterns“
on page 21