janitza UMG 96-S2 User Manual

UMG 96-S2 www.janitza.com
24
Consumer
L2
L3
N
L1
S1S2
S1S2
S1S2
NOTE
The device only determines the measured
values if voltage L1-N is greater than 20 Veff
(4-conductor measurement) or voltage L1-L2 is
greater than 34 Veff (3-conductor measurement)
at voltage measurement input V1.
Use a line protection (1 - 10 A) with IEC/UL
approval as fuse protection for the voltage
measurement.
7.4.3 Voltage measurement connection
versions
Three-phase 4-conductor systems
Voltage measurement in the three-phase 4-conductor
systems
Single phase 3-conductor system
Voltage measurement in the single-phase
3-conductor system
NOTE
· The device only permits setting one voltage
transformer ratio for all phases!
· You can easily configure the voltage
transformer ratios via
- the device menu.
- the GridVis
®
software.
· For information on programming the voltage
transformer, see chap. 12.6 on page 37.
· For information on exceeding the measurement
range, see chap. 17.4 on page 56.
V1
V2
V3
VN
V1
V2
V3
VN
WARNING
Risk of injury due to high currents and high
electrical voltages!
Serious personal injuries or death can occur
due to:
· Touching live exposed or stripped cores.
· Device and current transformer inputs that are
dangerous to touch.
Therefore, please observe the following for your
system:
· Before starting work, disconnect it from the
power supply!
· Secure it against being switched back on!
· Determine that there is no current!
· Ground the system! Use the ground
connection point with the ground symbol
for this.
· Cover or block off neighboring parts that
are under voltage!
Fig.
“Current measurement via current transformer” connection
7.5 Current measurement
The device
· is only approved for a current measurement
using the current transformer.
· is designed for the connection of current
transformers with secondary currents of ../1 A
and ../5 A.
· has the current transformer ratio set to 5/5 A by
default (adjust to the current transformer used,
if necessary).
· does not measure DC currents.
Voltage
Voltage

janitza UMG 96-S2 Specifications

General

Brand	janitza
Model	UMG 96-S2
Category	Measuring Instruments
Language	English