Megger ICMmonitor CA

The ICM system is a versatile partial discharge (PD) detector for evaluating the condition of medium and high voltage insulation. The system is fully computer controlled. All controls and displays are accessible on the control computer’s screen with a graphical user interface, a so-called virtual instrument, only. The acquisition of the partial discharge pulses, as the most time critical part, is handled completely independent and asynchronous.

The ICM system sorts the acquired partial discharge pulses with respect to the magnitude of the pulse and its phase position of occurrence into a three dimensional pattern, whereas the color as third dimension represents the frequency of occurrence. The derived partial discharge pattern is in most cases a typical expression of the gas discharge physics of the discharging site and the involved materials. Hence, the ICM system is a powerful instrument for PD testing of medium and high voltage insulation.

Megger ICMmonitor CA

• Mains supply: 90–264 VAC, 47–440 Hz (automatic)
• Line fuse: 2 A (time-lag) (ICMsystem with up to 4 channels) 3.15 A (time-lag) (ICMsystem with 5 to 10 channels)
• Power requirements: Approx. 110 VA max.
• Operation: Remote controlled via ICMsystem software
• Operation temperature: 0–40 °C (non-condensing)
• Input impedance (AMP IN): 50 W// 50 pF
• A/D converter (PD): 12 bit, compressed into 8 bit (unipolar) / ±7 bit (bipolar)
• Size: 236 x 133 x 300 mm3 (ICMsystem with up to 4 channels) (W x H x D, excl. BNC conn.) 450 x 133 x 300 mm3 (ICMsystem with 5 to 10 channels)
• Weight: Approx. 6.9–9 kg