Megger INGVAR, Руководство пользователя

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24 ZP-BH05E BH0654BE
6 HOW TO INSTALL INGVAR
6
H
ow to install INGVAR
6.1 Safety
WARNING
When you are changing the connec-
tions make sure that current not can
be generated accidentally. Disconnect
the mains supply or switch the minia-
ture breaker F1 to the 0-position.
WARNING
The current output terminals and connect-
ing points can be hot after generation of
high current.
Do not connect two or more INGVAR sys-
tems in parallel or series. This can damage
INGVAR or bodily harm
6.2 Connecting the test
object and the Current Unit
to each other
When you connect INGVAR to the object being test-
ed, you should check that the contacts on the connec-
tors are clean and that the cable clamps are placed as
close together as possible on the object being tested.
You must also remember that different types of cables
have different capacities for carrying high currents.
To minimize the voltage drop in the cables from ING-
VAR to the object under test you can:
A]
Use two or more cables in parallel.
B]
Use as short cables as possible.
C]
Use cables with heavier gauge (thicker) con-
ductors.
D]
Twist cable pairs.
Example of how cables can be run