Arizona Integrated Technology, Inc.

Partial Discharge Detection and Localization System for Power Transformers Model: AE-150

Power transformer AE-150 is designed to detect and localize Partial Discharge activity by correlating acoustic and electric sensors’ data. The AE-150™ has many acquisition modes, each used for detecting and locating Partial Discharge activity in a transformer. The AE-150™ unit is mounted on the transformer tank using its powerful magnets that also hold four acoustic sensors. Acquired data is sent to Mirador-Tx software where all advanced positioning functions are implemented. This cutting-edge software allows easy data interpretation, reporting and monitoring.



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• Easy to install and use
• Portable, battery-operated, wireless data transfer, weatherproof
• Mirador-Tx software allows automatic configuration and 3D positioning
• Simultaneous processing of AE and PD signals
• NEW: Monitoring Feature!


Power transformers are critical to transmission and distribution substations. In fact, losing a unit can have major financial consequences. To protect your investment, use Acoustic Emission Testing. This technique is superior to electric methods for on-site testing. The AE-150TM detects and locates Partial Discharges in power transformers by analyzing ultrasonic waves produced by electrical insulation breakdowns or high heat. The ultrasonic waves travel through the oil and strike the transformer’s tank, providing the AE-150TM the signals needed to locate the flaw. The instrument is installed on the transformer using the integrated magnetic mounting system. This features provides an easy way of moving the AE-150TM to survey the entire transformer. The remote user interface and the RF communication system allow safe operation of the unit in any outdoor conditions.
Developed in partnership with Hydro-Quebec and I.R.E.Q. laboratory, the AE-150TM brings a high level of acoustic and electrical expertise in an easy- to-use and efficient package.

While performing the test, all four acoustic sensors and electric sen- sor will receive a signal with from the partial discharge source. The software algorithms will make the correlation between those signals by using the arriving delays in order to draw a vector in the tank’s representation.

After performing the test at multiple localizations on the tank, a few vectors will start to cross. This crossing section represents the partial discharge localization position.

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