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5.1 Connecting VBO3 to a CMC 430
5.1.1 Max. 300 V output voltage
There is no star point at the VBO3 voltage inputs. Usually, a star point is not necessary for use with a
CMC 430 test set. However, if you would like to use the CMC 430 like one of OMICRON's other CMC
test sets and require an output voltage of only max. 300 V, you need to create a star point.
To create a star point:
• Connect the CMC 430 voltage outputs to one of the VBO3 voltage input triples using a connection
cable with 4 mm safety banana plugs (included in the delivery).
• Use flexible jumpers (included in the delivery) to interconnect the other VBO3 voltage input triple,
and thus, create a star point.
• Connect the star point to the CMC 430 's neutral phase.
Flexible jumpers
1
2
3
N
Connection
cable
1
2
3
N
Test object
Connection cable
VBO3
CMC 430
VBO3 User Manual
12 OMICRON