Control Panel; Breakdown Testing; Withstand Testing - Megger OTS60SX Guia Del Usuario

Control Panel

The control panel contains the supply on/off switch, the high
voltage display, voltage ramp rate selection and the three control
keys. The operation of the instrument is very simple. When the
instrument is turned on, the on/off switch is illuminated, and the
software edition code will be flashed up on the display.
LED
Display

Breakdown Testing

The suitable ramp rate for the test to be performed should be
selected using the 'L' key. The START key ' ' will then turn on
the high voltage. The red H.V. indicator will light to show the
output voltage is on. The voltage will then increase at the
selected ramp rate and the corresponding value will be shown on
Main
the display. If oil breakdown occurs the instrument will detect this
controls
and immediately shut off the high voltage. The breakdown
voltage value will be left on the display until the next test is
started. If no breakdown occurs, the high voltage will rise to
60 kV. At this point the test voltage is cut off and this maximum
Ramp rate
value left on the display.
selection
A test can be stopped at any time by pressing the STOP ' I'
button. This will remove the high voltage from the oil sample and
leave the display at 0,0 kV.
Mains
HV on
on/off

Withstand Testing

indicator
switch
A Withstand (proof) test can be carried out by pressing the
PAUSE ' ' key. This will maintain the high voltage at the current
value for one minute. After this time the high voltage will continue
to rise until one of the following:-
1) Oil breakdown occurs
2) The STOP ' I' key is pressed
Control Panel
6.