Partial discharges (PD) often occur
due to impending insulation faults
when electrical and acoustic pulses
are sent out simultaneously.
OMICRON's PDL 650 localizes the
acoustic signals using multiple sensors
spread out over the transformer. The
PDL software then calculates the fault
location based on the time difference
between the incoming signals.
The PDL 650 can be combined with
the MPD 600. An MPD 600 reliably
measures and analyzes electrical partial
discharge pulses and is connected to the
PDL 650 via a fiber optic cable. UHF
measurements can serve as an
additional signal input. This allows
partial discharges to be localized more
quickly, even in environments with lots
of interference factors.
The 3D depiction of the transformer
is particularly useful. The PDL
software calculates the position of the
PD fault and then represents this in a
3D model of the transformer. The user
can then rotate the model in all
directions. New transformer models
can be created as they are developed,
ensuring that the software is prepared
for future innovation.
The "Record" function offers new
functionalities. It allows complete
measurements to be recorded and
then played back at a later point in
time. All data is saved without
changes, therefore the measurement
can still be used many years later for
comparison or even analyzed at a later
date by experienced experts.
In many cases, a test report may be
desired or even stipulated. At the touch
of a button, the PDL software compiles
a printable report of the measurements.
This makes the PDL 650 an ideal system
for localizing and analyzing partial
discharges and tracing back results.