The ICMsystem is a powerful, versatile instrument for evaluating the condition of medium and high voltage insulation. It is part of the Power Diagnostix ICMseries of digital partial discharge detectors. It is usable over a range of frequencies of applied voltage, including power system frequency (50/60 Hz) and VLF (0.1 Hz).
Partial discharge (PD) measurements are a proven method for effective, nondestructive evaluation of electrical insulation. The Power Diagnostix ICMsystem provides high-resolution digital PD patterns for characterization of defects in high voltage insulation systems.
The ICMsys8 is specifically designed to meet the requirements of partial discharge acceptance tests on large power transformers. The instrument builds on the acquisition core of the standard ICMsystem. However, by introducing an individual amplifier plug-in for each channel, true parallel acquisition of the discharge magnitude of eight channels is achieved. The instrument can be equipped with optional features like RIV or acoustic PD measurement.
The ICMcompact is a compact, stand-alone instrument for evaluating the condition of medium and high voltage insulation. It is often used in qualityassurance and quality control tests in manufacturing.
The Power Diagnostix ICMcompact provides a simple push-button interface and on-screen menus in an embedded LCD panel. The LCD display modes include a simple PD charge meter with adjustable “needle” sensitivity, monochrome phase-resolved PD patterns for characterization of defects, and a scope-like display showing phase summed charge pulses superimposed with the applied voltage wave.
The SPECcompact is a narrow - and broad-band partial discharge detector with selectable center frequency. The unit offers as well spectrum analysis up to 10 MHz and a selectable bandwitdth of 9 kHz or 270 kHz.
Observing the frequency spectrum of a harshly disturbed PD signal allows selecting frequency bands with less disturbances. Using this selected frequency for a PD acquisition gives a largely improved signal-to-noise ratio resulting in a clear pattern acquisition. The combination of spectrum analyzer and PD detector within one instrument opens a broad field of new possibilities when analyzing isolation defects even with large noise.
The AIAcompact is a portable unit for in-service acoustic and electric (UHF) partialdischarge measurements on gas-insulated switchgear (GIS), transformers, and cable accessories.
The instrument is fitted with a battery pack for independent operation up to 3 hours and adapts to a variety of piezo-electric acoustic sensors and is supplied with a versatile sensor fixture. Additionally, the AIAcompact allows partial discharge measurements on external UHF sensors.
The ICMflex offers inherent operator safety and greatly simplifies distribution class cable testing and other field tasks involving partial discharge and tan delta testing. The instrument is mainly used for on-site testing, but can be used in laboratories and work shops as well.
With the unique concept of the ICMflex instruments, the entire acquisition hardware is placed on high voltage potential right at the position where the signals are. Thus, no signal cables are needed, as the instrument is fully self-contained and battery operated. The instrument is fully remote controlled via high speed Bluetooth or fiber optic communication.