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Technology Products

PD Annunciator System

PD Annunciator System

Business Type : Manufacturer, Exporter, Supplier, Retailer

Product Details

Sensor(s) Up to three SonoTEV™
Connector Type BNC connectors
TEV bandwidth 10 MHz to 500 MHz
Ultrasonic bandwidth 38 kHz to 88 kHz (±1dB)
Sensitivity 40 dB
Power Supply 90-264 VAC 47-63Hz
Memory 15 000 entries
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Preferred Buyer From

Location Worldwide

Remotely detect partial discharge activity inside any energised cabinet using ndb Technologies PD Annunciator™ system. Probes are installed on the unit under test and will give instant status thus preventing long term damage to your switchgear equipment. Its unique design allows simultaneous TEV and Acoustic detection for optimized results. The flexible sensor's unique design allows for combined directional airborne acoustic and TEV detection.



  • Simultaneous TEV and Acoustic detection
  • Easy to install, magnetically held on any metallic cabinet
  • Airborne or contact acoustic detection
  • Intuitive software
  • Open collector and RS485 interface
  • Optional cellular module

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