Table of Contents
Advertisement
12 / 14
12.6 3 phase networks with connected star point
I
L1
A
U
AC:
700 V / 16 A
DC: 1000 V / 25 A
CAT III
300 V
I
L2
B
U
I
L3
C
U
AC:
700 V / 16 A
DC: 1000 V / 25 A
CAT III
N
300 V
I
D
U
Measurement in 3 phase networks with neutral conductor and
Fig. 16:
grounded star point.
In this application, only the current I
corresponds to the current in the neutral conductor.
Attention
The connections of current paths should never be inter-
rupted unless the system or the experiment is switched
off. There is a possibility of the formation of arcs in case
of disconnections and short circuits. The safety leads
used must be rated for the expected voltage and current
values.
is active in channel D. It
D
Tel: +49-2233-604-0 · Fax: +49-2233-604-222 · Email: info@ld-didactic.de · Technical alterations reserved
12.7 3 phase networks with open star point
I
L1
A
U
AC:
700 V / 16 A
DC: 1000 V / 25 A
CAT III
300 V
I
L2
B
U
I
L3
C
U
AC:
700 V / 16 A
DC: 1000 V / 25 A
CAT III
N
300 V
I
D
U
Measurement in 3 phase networks with star point without
Fig. 17:
neutral conductor.
In this application, only the voltage U
corresponding to the voltage between the 2 disconnected start
points.
Attention
The connections of current paths should never be inter-
rupted unless the system or the experiment is switched
off. There is a possibility of the formation of arcs in case
of disconnections and short circuits. The safety leads
used must be rated for the expected voltage and current
values.
© by LD DIDACTIC GmbH · Leyboldstraße 1 · D-50354 Hürth · www.ld-didactic.com
Instruction sheet 721 100
is active in channel D,
D
Advertisement
Table of Contents
