Megger DELTA4000, Instruction Manual, Page: 40 / 74

M
AVTMDELTA4000-EN Rev 6 April 2018
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factor (e.g. generators) or in case a voltage
dependence is suspected and indicated by high
VDF in DELTA4000. The highest voltage level
used is set on main page and the voltage per
step is set on the settings page Voltage steps
can be set on the settings page
Frequency Sweep Frequency Sweep allows the user to perform a
series of tests over a frequency range, and view
results by depressing Graph button (bottom
left). The voltage level used is set on main page
and the frequency steps are set on the settings
page. Present frequency steps come factory set
for optimal ITC calculation, as well as allowing
user to detect problem insulation conditions.
NOTE: There are limitation of voltage levels at high
frequencies and low frequencies below 45 Hz.
Manual This mode allows continuous manual control of
output voltage.