ICMsystem for evaluating the condition of medium and high voltage insulation

Description

The ICMsystem is a digital partial discharge detection system. ICMsystem is a powerful, versatile instrument for evaluating the condition of medium and high voltage insulationThe instrument is completely controlled by software using a GPIB, USB, TCP/IP, GSM Modem, fiber optic or direct serial link. It can be expanded to up to 10  true-parallel acquisition channels, while offering all features of the single channel  ICMsystem. It is designed for acceptance tests on large power transformers and other application requiring parallel acquisition.

by introducing an individual amplifier plug-in board for each channel, true parallel acquisition of the discharge magnitude of up to ten channels is achieved. The instrument can be equipped with optional features like RIV or acoustic PD measurement. In acceptance test mode, the software shows up to ten meter displays, each indicating PD level, voltage, and frequency of the specific channel.A wide range of external preamplifiers provides control of the frequency range in which PD activity is detected, from 40 kHz up to 2 GHz.

Software:The operating parameters of the ­ICMsystem are fully computer controlled, making it simple to use with the standard ICMsystem software. The PC application includes convenient options for in-depth analysis and printing of stored PD patterns.The optional spectrum function extends the functionality of the ICMsystem to provide a spectrum analyzer and a radio influence voltage meter for RIV measurements according to CISPR and NEMA standard.A device with a software integrated option for cable fault localization (CFL) can perform PD fault location measurements on medium voltage cables by processing partial discharge signals by means of the time domain reflectometry.

• Built-in spectrum analyzer
• RIV measurement (according to CISPR and NEMA standard)
• Cable fault localization
• Acoustic PD localization
• Transformer acceptance testing (for multi-channel devices)

The multi-channel version of the ICMsystem 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 board for each channel, true parallel acquisition of the discharge magnitude of up to ten channels is achieved. The instrument can be equipped with optional features like RIV or acoustic PD measurement.

Advanced PD test ICMsystem configuration :

• 1 x ICMsystem (opt. MUX8)
• 1 x ICMsystem software
• 1 x Preamplifier RPA1
• 1 x Quadrupole CIL4M/V2µ0 for SF6 bushings, or
• 1 x Frequency converter unit FCU2
• 1 x Input protection unit IPU2
• 1 x Preamplifier set UHF2
• 1 x Preamplifier RPA3
• 1 x Impulse calibrator CAL2B
• 1 x Set of cables
• 1 x High end spectrum analyzer (e.g. Agilent 859xE, …)
• 1 x ICMspectrum software