22
2.2
Connections
Before making any connections please ensure that you are aware of all hazards relating
to the system and environment in which it is operating.
The test object must be isolated, proved to be dead and earthed before any connections
are made.
Ensure that the system is properly earthed - connect a substantial earth lead of low resistance
and impedance from a reliable efficient earth to the earth terminal on the high voltage
transformer and the earth terminal on the control unit.
Connect the control unit to the HV transformer with the supplied power and metering leads. If
the unit is a low partial discharge type, connect the brush noise filter in the power lead
between the control unit and the HV transformer as shown in figure 2.2.
Connect a suitable conductor from the high voltage transformer bushing to the test object.
Please note that an HV connection lead is not supplied with the unit. The unit is designed to
be used with an air-insulated HV connection (such as tinned copper wire or copper tubing of
an appropriate diameter). It is important to ensure that adequate clearances to earthed
objects are maintained from the output terminal, HV connection and test object. The HV
conductor must be supported securely.
Connect a suitable conductor from the test object earth to the earth terminal on the high
voltage transformer (see figure 2.1 & 2.2).
The interlock connections are not shown in figure 2.1 or 2.2.
Summary of Contents for KV mk2 Series
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