EA Technology UltraTEV Plus
2
Operating Manual 2388L015
Page 23 of 66
5.8.2 Filters
Select the filter icon to change the filter properties; this option is only enabled when
in Cable PD Measurement Mode and enables noise to be filtered from the cable PD
measurement.
Select the desired filter properties, a tick should appear when a selection has been (shown
above).
No Filter – This option passes all frequency types.
500 kHz High Pass – This option activates a high pass filter that passes all
frequencies from 500kHz and above.
1.8 MHz High Pass – This option activates a high pass filter that passes all
frequencies from 1.8 MHz and above.
5.8.3 Phase Reference
Select the icon on the context menu to access the phase reference settings page. This
allows the source of the phase reference for the UltraTEV Plus² to be selected from the
following options:
Photo – This option selects the Photo-sensor located on the front upper section of
the UltraTEV Plus² as the source of the Phase reference. The Photo-sensor requires
line of sight to a mains frequency light source such as a fluorescent fitting.
E field – This option selects the in-built E-field sensor as the source of Phase
reference. The sensor detects the phase reference from the stray electric field
within the substation.
Manual – Allows the user to manually adjust the phase reference.
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