Megger 128311841, Operating Manual

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Operating Manual
4
HV Tester 25 kV
2.2 Design of the set
The compact HV Tester 25 kV is very portable thanks to its small size
and low weight and can be used directly on-site. State-of-the-art
technique and clearly designed operation panel for easy application.
The control and display elements as well as the high-voltage outlet are
arranged on the control panel.
A timer is provided for pre-selecting the testing time.
Figure 1 HV Tester 25 kV
2.3 Function
Before the set can be used, the HV Tester 25 kV has to be grounded
properly.
When the high-voltage adjuster is set to zero and the timer works, the
test voltage can be switched on at the press of a button and increased
continuously between 0 V and the nominal voltage.
The condition of the test object with regard to electric strength and
insulation quality can be determined from the values for test voltage and
leakage current displayed on the operation unit.
After testing, the object under test is discharged through the built-in
discharging facility.