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NEO MESSTECHNIK

NEO Messtechnik GIA3-450 kHz Three Phase Grid Impedance Analyzer

NEO Messtechnik GIA3-450 kHz Three Phase Grid Impedance Analyzer

$29,165.00 AUD
$29,165.00 AUD
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The Neo Messtechnik Grid Impedance Analyzer GIA3-450 allows measuring three-phase grid impedance (phase to ground or phase to phase) in a frequency range up to 450 kHz. The GIA3-450 is powered by the Neo Messtechnik PQA8000H instrument.
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Grid Impedance Segmentation

Up to 2 kHz:

  • Transformer / Distribution Line

2 kHz – 150 kHz:

  • AC/DC Conversion with EMV Filter with HIGH POWER (PV, ESS, EV)

150 kHz – 450 kHz:

  • AC/DC Conversion with EMV Filter with LOW POWER (LED, chargers)
  • Reason: higher resonance frequency of filters (to avoid RCD tripping)

Safe, Accurate, and Fast Excitation

The GIA has a high-resolution ADC of 18-bit which ensures capturing of accurate frequency response up to 450 kHz with a fast excitation time of 400 ms.

THE NEO ECOSYSTEM

Powered by NEO PQA 8000H Series

All Models of the NEO Grid Impedance Analyzer (GIA) is powered by the PQA 8000H Series (sold separately). As the GIA is externally powered by the PQA 8000H Series, it means a operating time of 4 hours.

Compatible Models Include

Explore PQA8000 Series

EASY AS 1, 2, 3

Record, Plot, and Export RAW Measurement Data

For easy illustration of the time- and frequency-dependent characterization of the mains impedance (grid impedance) of the low-voltage electrical grid, the GIA offers table views, 3D views and spectrometer views.

Export in CSV, Image Formats such as JPEG, or use the RAW data in your application such as MATAB.

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Application 1

Measure Real Grid Impedance

The high penetration of distributed generation and modern electrical devices based on active power electronics are causing significant changes in the higher frequency grid impedance. The additional inductances and capacitances (LCL Fi lter, DC link etc.) causes multiple parallel and series resonances. Effects are high harmonic currents, high harmonic voltages, overheating of devices, noise, additional losses or malfunction of equipment or malfunction of digital communication.

Grid codes (for example DACH-CZ, TOR, TAR) first time allow the consideration of resonance factors for the determination of harmonic emission limits for each individual harmonic.

Application 2

Supraharmonics

Supraharmonic emissions in the range of 10 kHz to 500 kHz due to active power electronics such as Photovoltaics, Electric vehicle chargers, Wind power, heat pump and others.

Examples of Propagation of Supraharmonic Include:

  • Case 1) within a customer facility
  • Case 2) to transformer station (e.g. up to 16 km)
  • Case 3) to non-active electric vehicle charging station

Application 3

Power Line Communication (PLC)

Power Line Communication (PLC) is often used for smart metering applications in a frequency range from 10 kHz to 450 kHz (CENELEC A, B, C, D, FCC, ARIB). Existing power cables are used for communication but represent a “rough” medium. Communication failures are the consequence:

Existing power cables are used for communication but represent a “rough” medium.

Communication failures are the consequence:

  • Increasing supraharmonic emissions cause background noise
  • Series resonances (e.g. LCL input filters of other units), which are a low impedance path for intended emissions
  • Attenuation between transmitter and receiver