|
IMCORP
Testing Technology
The
IMCORP defect
specific diagnostics technology is
a non-destructive
diagnostic test
based on pulse
reflectometry and
time-of-arrival
techniques. At the
core of the
technology is an
expert system that
uses cutting edge
digital signal
processing
techniques and high
performance
electronics. This
system empowers the
user to locate
defects and make
decisive
recommendations for
maintenance. The
technology makes use
of the power
frequency (50/60Hz)
to excite defects in
the cable being
tested. Power
frequency testing
exactly replicates
service conditions
and allows
comparisons to be
made to standard
factory tests. In
laboratory tests and
comparative field
tests, the IMCORP
technology has
revealed its
distinct
superiority,
especially in the
presence of high
ambient noise. The
IMCORP technology
family includes:
 |
Cable
Topology |
|
|
Diagnostics
|
|
Tangent
Delta
-
Global
condition
assessment |
|
|
Partial
Discharge
-
Defect
site
location
-
Defect finger
printing |
|
|
|
Database
|
The
Diagnostic Test
Procedure
The
non-destructive
diagnostic test is a
4-step process:
-
Cable Topology
-
Sensitivity
and Calibration
-
HV Diagnostic
Tests
-
Analysis and
Recommendation
Acquisition of the
cable topology
allows the user to
locate cable joints
and neutral
discontinuities, and
to determine the
cable length.
Sensitivity
calibration allows
the subsequent test
to be compared to
the base line cable
factory test. The HV
diagnostic tests
apply continuous
50/60 Hz voltage to
the cable for a few
seconds. During this
time, the IMCORP
system takes
measurements and
stores the data. The
operator turns off
the high voltage and
analyzes the data
with the help of the
proprietary IMCORP
IMESTI software
system. A
preliminary report
and recommendations
are produced on
site. |
