Connection to Circuits
Power Analyzer NORMA 4000, NORMA 5000
19
EO1111G REV G
5.5 3-phase measurement in 4-wire system
5.5.1 Direct
connection
Note
3-phase measurements in 3-wire systems are only possible via a
star point adapter (creates neutral point) plugged into the voltage
inputs.
Ensure that there is no overload at the current input of the
power analyzer.
If there is a potential risk of overload at the current input,
incorporate a shunt or transducer into the circuit.
If necessary, install appropriate fuses.
F
eh
ler! A
u
to
T
ext-E
in
trag
n
ich
t d
efin
iert.
Danger! Risk of electrocution!
Risk of injury when touching connections, internal circuits and
measuring devices that are not earthed.
Always adhere to the instructions regarding the sequence of
connection (see page 12).
L2
max. 10 m
L1
L3
I
1
I
2
N
I
3
1
HI
CURRENT
LO
10 A max
PROBE
EXT.SHUNT
10 V max
HI
VOLTAGE
LO
1000 V max
2
HI
CURRENT
LO
10 A max
PROBE
EXT.SHUNT
10 V max
HI
VOLTAGE
LO
1000 V max
3
ALL INPUTS MAX 1000V CATII TO
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