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It combines a windows compatible
computer, a wide range electrometer
with special filtering properties, an adjustable voltage source,
switching devices, measuring and analysis software in one portable,
rugged case. It can be used in high-voltage substations as well as
laboratory and industrial environments. The PDC-Analyser-1MOD
can be supplemented with an accessory external voltage source PDC-Phantom-1000XE
for making measurements on grounded objects.
Insulation Analysis and Diagnosis
All kinds of insulation materials undergo
degradation processes or ageing effects, if stressed by electric
fields, partial discharges, temperature and mechanical forces. These
ageing effects change the dielectric properties (real and imaginary
part of the permittivity) which can bi identified either by the measurement
of the "dielectric response function" in the time domain
(also called "time domain spectroscopy") or by
measurements of the capacitance and the losses in the frequency
domain ("frequency domain spectroscopy").
Application of these methods to insulation systems
of high-voltage equipment is extremely valuable as the results
provide answers about the actual conditions and the status of the
insulation.
As the results from each measurement method can be
transformed mathematically into equivalent results of the other
method, the PDC-ANALYSER-1MOD is based on "time domain
spectroscopy", which can be made in less time and with better
precision than measurements in the very low frequency domain.
The PDC-ANALYSER-1MOD is thus a most
flexible diagnostic tool for insulation systems and insulation
materials.
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