Main Applications

• Quality Assurance
• On-Site Diagnosis
• On-line Monitoring
• Research and Development

The ICMsystem's signal processing technology allows its adaptation to a variety of signal sources and coupling devices and hence the testing of a broad range of insulation systems:

Broad Application Range

• Generators and Motors
• Gas Insulated Switchgear
• Transformers, Bushings
• Cables, Joints
• Power Electronics
• Low, Medium, High Voltage Equipment

Graphical User Interface

• Easy to operate
• No knobs no buttons
• Measurements with pre-set setups
• Full computer control of every function

• Low weight and size
• Reduction of transport cost

General Description

The digital partial discharge acquisition system ICM registers partial discharge pulses. The pulses are sorted with respect to their intensity (or apparent charge) and their phase angle or time of occurrence.

During a pre-set measuring time, the partial discharge pulses are accumulated and sorted according to their pulse intensity and phase angle. The measured result is displayed in the form of a color pattern. The frequency of occurrence of partial discharge pulses is coded in colors, where the intensity of the color increases with the frequency of occurrence. The resulting pattern, sometimes called a PD fingerprint, displays the partial discharge physics and can hence be used to identify the defect type in the insulation system by comparison to a catalog of typical PD patterns for various types of defects. Also gradual changes in the partial discharge behavior, due to aging for example, can be easily visualized.

Sample Patterns (AC Voltage)