The problem: partial discharges

Perhaps you have also experienced a failure of a T-connector or a sleeve at some point. Your solar PV system, wind turbine or even wind farm is no longer able to feed electricity into the grid. In many cases, this sudden failure could have been prevented.

Damage to T-joints and sleeves is often caused by partial discharges. With ACOUSTISCAN, such damage can be detected at an early stage and rectified as part of a planned repair programme.

  • What might the consequences be?

    • Unplanned outages affecting the entire asset
    • Extensive production stoppage
    • Prolonged downtime due to logistics, staffing issues and external circumstances (e.g. weather)
    • Security risk

  • What are partial discharges?

    Partial discharges are minute electrical discharges occurring within or on the surface of insulating materials in high-voltage installations. They occur when the local electric field strength is so high that it partially breaks down the material – without causing a complete short circuit.

    Why is this important?
    These micro-discharges are early indicators of insulation damage. If they go undetected, they can lead to material degradation, malfunctions and, ultimately, costly breakdowns.

    Common causes:

    • Air pockets or voids in the insulation material
    • Sharp edges or dirt
    • Ageing and exposure to moisture

    Early detection protects:
    Through continuous monitoring – for example, using acoustic sensors such as those in ACOUSTISCAN – partial discharges can be detected at an early stage, thereby preventing unplanned downtime.

The solution: Continuous acoustic monitoring

ACOUSTISCAN detects partial discharges acoustically – without electrical coupling and whilst the operating voltage is applied. Measurement data is transmitted securely and analysed by our electrical engineers.

  • Das Piktogram zeigt drei Steckverbindungen von High Voltage Kabeln in einem Transition Piece einer Offshore Windturbine.
    01

    Installation of sensor equipment
  • Das Piktogram zeigt einen Bildschirm eines Laptops für Offshore Wind Techniker mit einem Ausrufezeichen.
    02

    Wired data transmission
  • Das Pictogram zeigt eine Elektotechnik Ingenieur:in am Schreibtisch bei Omexom Offshore bei der Überprüfung der Daten aus ACOUSTISCAN.
    03

    Wireless data transmission to our office
  • Das Pictogram zeigt zwei Hände die auf ein Tablet mit einer Datenanalyse/ Graphen von Acoustiscan zeigen.
    04

    Data analysis carried out by our electrical engineers
  • Das Pictogram zeigt mehrere Graphen einer monatlichen Analyse von Acoustiscan
    05

    Monthly report on the status of installation sites

Your benefits

ACOUSTISCAN is the robust solution for the early detection of partial discharges. In the past, the system has been widely used and highly valued by our customers in the offshore sector. From this year onwards, you too can benefit from the advantages of continuous monitoring.

  • Planned repairs

  • Operational safety

  • Reduce security risks

  • Valuable insights

Contact & Offer

Would you like to use ACOUSTISCAN at a wind farm or in a substation? Get in touch – we’ll advise you and draw up a suitable plan.

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