Megger VLF SIN-45 - Page 20

Commissioning
20
Proceed as follows, to connect the VLF SIN-45 test system to the test object:
Step Action
1
Using the green/yellow earth cable make a connection between the protective
earth connection
of the device and a suitable point on the protective earth
system (station earth).
Make sure that the connecting points of the earth cable are not polluted /
corroded and that they provide good metallic contact.
2
Insert the plug of the HV connecting cable, aligned as shown, into the HV
output
of the system.
The connecting plug has a bayonet fitting. The plug must be pushed gently
against the HV output with some force, and noticeably slot into place. Then
tighten the plug by turning it in a clockwise direction.
3 If you want to carry out a cable test or a
loss factor measurement
:
If you want to carry out a sheath test
or a sheath fault location
:
Connect the screen of the HV
connecting cable to the earthed screen
of the test object (system earth).
Connect the screen of the HV
connecting cable to the earthing bar of
the cable system (system earth).
4
Connect the internal conductor of the
HV connecting cable to the phase
conductor of the test object.
Connect the internal conductor of the
HV connecting cable to the earth
screen of the test object.
The earth screens must be
disconnected at both cable ends.
5
Connect the power cord included in the scope of the delivery to the system’s
power socket
and a power supply socket.
Procedure