Megger Power Diagnostix ICMflex User Manual page 12

ICMflex
Partial discharge and loss factor measurement system
The following Figure 2 shows a 50 kV set consisting of a T-filter T50/1 (left) and the ICMflex model for 50 kV
(right).
Based on application necessity, it is possible to order the ICMflex acquisition system in different configura-
tions. The following table illustrates this modularity. Please contact Power Diagnostix to specify the individual
configuration.
TYPE
ICMflex
Basic system
ICMflex
Option TD
ICMflex
Option PD
ICMflex
Option LOC
12 User guide for ICMflex
Figure 2: 50 kV test set
COMMENT
The basic system offers voltage measurement, frequency measurement, and both com-
munication ports (Bluetooth and fibre optic serial transmission). The black acquisition
box is placed in the head of the grey case. The system is not usable without one of the
following options.
This option enables all features for loss factor measurements. The system will come
with customised shunt and reference capacitors. The software calculates the following
values:
C : Capacitance of the test object
x
tan δ : Loss factor of the sample under test
cos ϕ : Power factor of the sample under test
Optionally, the system can be fitted with a C
capacitor if the test object's capacitance is too high.
This option is needed if PD measurements shall be taken from the test object. The sys-
tem comes with a built-in measuring impedance on HV potential. The software displays
all PD activities in a PD scope graph, allows PD pattern acquisition, and indicates the
precise PD magnitude Q
This option can be chosen in addition to the option PD. A special high-speed sampling
board with 16-bit 100 MS A/D converter enables the pulse measurement vs. time. This
option is mandatory for PD fault location on cables. The software offers a special TDR
(Time Domain Reflectometry) graph and further evaluation tools.
bypass to avoid overstressing of the shunt
x
.
p
pdix.com