Using/attaching the sensors provided
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Using/attaching the sensors provided
The internal airborne acoustic sensor is used for the acoustic detection of partial
discharges. To do this, the front end of the PD Scan must be aligned with the openings
in the substation, or directly with the freely accessible test object.
The distance to the measurement object should always be roughly the same, when
possible, to ensure the measured values recorded are comparable.
The internal TEV sensor measures electromagnetic waves. To do this, the front end of
the PD Scan is held at the surface of the substation, preferably close to any
openings/gaps in the substation.
This external, acoustic sensor is specially designed for openings, air holes and gaps,
out of which the acoustic waves of the partial discharges can escape from the
switchgear.
Internal acoustic
sensor
Internal TEV sensor
Flexible
airborne acoustic
sensor
