janitza UMG 604-PRO, User Manual And Technical Data

Page: 43 / 87

www.janitza.de
UMG 604-PRO
38
Address Voltage transformer values
002 L1 L2 L3 L4 (primary)
003 L1 L2 L3 L4 (secondary)
012 L1 (primary)
013 L1 (secondary)
022 L2 (primary)
023 L2 (secondary)
032 L3 (primary)
033 L3 (secondary)
042 L4 (primary)
043 L4 (secondary)
Address Connection variant
111 0 = three phase 4-con-
ductor networks (factory
default setting)
1 = three-phase 3-con-
ductor networks
C C
NOTE!
It is not necessary to configure
a connection schematic for
measurement inputs L4 and I4.
11. 3 Voltage transformer ratio
You can assign each of the 4 voltage
transformer inputs its own voltage
transformer ratio.
• A voltage transformer ratio of 400 V / 400
V is factory-set for all 4 voltage transformer
input.
• You can program voltage transformers
with the same voltage transformer ratios in
addresses 002 and 003.
• You can program voltage transformers
with different voltage transformer ratios
in addresses 012 to 043.
• Changing the voltage transformer values
in addresses 002 or 003 overwrites the
contents of addresses 012 to 043 with the
voltage transformer values from addresses
002 and 003.
11. 4 Voltage connection variants
The device recognises two connection
variants for voltage measurement.
Connection variant 0
• Direct voltage measurement in 3-phase
4-conductor networks.
• Measurement via 3 voltage transformers in
3-phase 4-conductor networks.
• Measurement in single-phase 3-conductor
systems.
Connection variant 1
• Direct voltage measurement in three-phase
3-conductor networks.
• Measurement via 2 voltage transformers
(Aron circuit ) in three-phase 3-conductor
networks.