ICMsystem versatile partial discharge measurement system
The ICMsystem offers PD and RIV tests according to international standards
The ICMsystem offers PD and RIV tests according to international standards
Key Benefits
- Highest degree of versatility
- One instrument for a wide range of high voltage assets
- PD and RIV acceptance tests according to international standards
- Parallel measurement and recording of several PD sources
Description
Power Diagnostix’s ICMsystem is a versatile partial discharge (PD) measurement system. This universal PD device can be used by adjusting versatile features and accessories to fit your specific testing purpose. It has the highest grade of modularity and versatility making it ideal for, laboratory tasks (QAQC) and on-site testing (on-line and off-line) for all your assets.
As a multi-purpose PD measurement instrument, the ICMsystem offers the following features and options:
PD spectrum analysis
High voltage measurement (HVM)
Synchronisation frequency from VLF to 510 Hz
DC measurement mode
DAkkS calibrated voltage measurement
Acoustic fault localisation
PD fault localisation on cables
Effective noise gating for blocking phase-stable or phase-independent noises
Radio influence voltage (RIV) measurement
High -resolution PD patterns
Assorted coupling devices, including quadrupoles, coupling capacitors, and current transformers, are available to sense the PD signal in the object under test. The instrument provides effective noise gating that blocks phase-stable noise as well as noise independent of the applied voltage cycle, allowing the ICMsystem to be used in noisy environments without losing significant PD data. Appropriate selection of a preamplifier can assist further in achieving a high signal-to-noise ratio.
The ICMsystem is fully computer controlled. All controls and displays are accessible on the screen of a PC via a graphical interface;, a so-called ‘virtual instrument’.
To receive software updates or user guides, please contact support.pdix@megger.com or call +49 241 74927. Please have your device serial number ready or state your reason for interest.
Frequently Asked Questions
What kind of measurements can be performed with the ICMsystem?
As a multi-purpose instrument, the ICMsystem can perform a range of different measurements and tests, such as• Partial discharge measurements • Partial discharge fault location on cables • Acoustic fault location • High voltage measurements • Radio interference voltage (RIV) measurements
What does IEC 60270 compliance mean?
The IEC 60270 standard covers the measurement of partial discharges occurring in electrical equipment, components, or insulation systems when tested with AC voltages up to 400 Hz or with DC voltage. It specifies requirements for the measurement equipment and for calibrators that should be used for measuring. Additionally, it defines three possible measurement setups to ensure reproducible and comparable PD measurement results.Power Diagnostix’s ICMsystem meets all the requirements of the standard and thus guarantees highly accurate and reliable measurement results.
What is the advantage of a spectrum analysis panel in connection with partial discharge measurements?
Observing the frequency spectrum of a harshly disturbed partial discharge signal enables you to select frequency bands with fewer disturbances. Using such a selected frequency for a partial discharge acquisition, gives a largely improved signal-to-noise ratio resulting in a clear pattern acquisition. The combination of spectrum analyser and PD detector within one instrument opens a broad field of new possibilities when analysing isolation defects, even in noisy environments.
Is there a way to reduce disturbance signals during partial discharge measurements?
An effective noise reduction is required in case measurements are taken in an environment with high frequency (HF) disturbance, such as a frequency converter switching pulses, corona discharge, or a thyristor firing. This is because these disturbances can hamper partial discharge detection.The ICMsystem uses a gating signal picked up by a disturbance antenna, or a high frequency current transformer, which is used to blind out the disturbances during the measurement.General background noise can be handled by setting a low level discriminator (LLD) in the control software.
Documents
- ICMsystem_DS_EN.pdfpdf 1.14 MB
- PD Testing of Power Transformers_excerpt_ET_Mag_Issue_2_V01_DIG.pdfpdf 3.89 MB
- PowerDiagnostix_BR_EN_DIGITAL.pdfpdf 27.02 MB
- PDIX_Accessories_CT_EN_DIGITAL.pdfpdf 12.83 MB
- Megger Explains Report - Utility Week Article (PDIX & Partial Discharge).pdfpdf 818.54 KB
- Integrated solution for Factory and laboratory PD testing TTissue18_Advertorial_Megger_single Feb22.pdfpdf 6.19 MB
