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U1-Industrial Acoustic Imager (Power Bureau Discharge Version)
U1-Industrial Acoustic Imager (Power Bureau Discharge Version)
U1-Industrial Acoustic Imager (Power Bureau Discharge Version)
U1-Industrial Acoustic Imager (Power Bureau Discharge Version)
U1-Industrial Acoustic Imager (Power Bureau Discharge Version)
U1-Industrial Acoustic Imager (Power Bureau Discharge Version)
U1-Industrial Acoustic Imager (Power Bureau Discharge Version)
U1-Industrial Acoustic Imager (Power Bureau Discharge Version)
U1-Industrial Acoustic Imager (Power Bureau Discharge Version)
U1-Industrial Acoustic Imager (Power Bureau Discharge Version)
U1-Industrial Acoustic Imager (Power Bureau Discharge Version)
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  • U1-Industrial Acoustic Imager (Power Bureau Discharge Version)
  • U1-Industrial Acoustic Imager (Power Bureau Discharge Version)
  • U1-Industrial Acoustic Imager (Power Bureau Discharge Version)
  • U1-Industrial Acoustic Imager (Power Bureau Discharge Version)
  • U1-Industrial Acoustic Imager (Power Bureau Discharge Version)
  • U1-Industrial Acoustic Imager (Power Bureau Discharge Version)
  • U1-Industrial Acoustic Imager (Power Bureau Discharge Version)
  • U1-Industrial Acoustic Imager (Power Bureau Discharge Version)
  • U1-Industrial Acoustic Imager (Power Bureau Discharge Version)
  • U1-Industrial Acoustic Imager (Power Bureau Discharge Version)
  • U1-Industrial Acoustic Imager (Power Bureau Discharge Version)

U1-Industrial Acoustic Imager (Power Bureau Discharge Version)

The U1 Industrial Acoustic Imager is a handheld industrial acoustic imager that supports ultrasonic frequencies. The instrument uses microphone array beamforming technology to acquire sound source distribution data, and is equipped with a high-definition camera to collect video images in real time. By integrating the sound source distribution data with the video images, the changing sound source is dynamically displayed on the screen. The U1 Industrial Acoustic Imager can help you quickly detect possible leaks in air, gas, and vacuum in noisy industrial environments; and it can store the detected images and videos for playback or report generation through image or video capture functions.

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Classification:

Product Characteristics

  • MEMS Microphone

    132 digital MEMS microphones; frequency range 1K~100kHz
     
  • Capacitive Touchscreen

    8-inch IPS touchscreen with full viewing angle and high brightness, resolution 1280*800
  • Working Distance

    Working distance 0.5 meters to 120 meters
  • Adjustable Focus

    Camera with adjustable zoom, real-time frame rate up to 25fps
  • Multi-Source

    Supports multi-source mode, each source can display real-time amplitude
  • Monitorable

    Supports headphone monitoring function, allowing real-time monitoring of audio signals;
  • Fast Charging Protocol

    Type-C port charging, supports fast charging protocols such as PD, maximum 60W
     
  • Other

    Auxiliary lighting;

 

Product Parameters

I. Partial Discharge

In power systems, insulation defects are common faults. Before an insulation defect occurs, there is a common characteristic: partial discharge. Each partial discharge has some impact on the insulating medium, reducing its insulation strength. If insulation damage occurs, it will cause damage to electrical equipment or even endanger personnel safety. For many years, power companies have been performing partial discharge measurements on high-voltage electrical equipment; partial discharge is a measure of insulation degradation. Accompanied by partial discharge, cracking-like acoustic emission is generated during the process, producing ultrasonic waves that quickly propagate to the surroundings. An intelligent acoustic imager is an intuitive and easy-to-use tool that can identify the acoustic frequency of partial discharge. Using an array of 132 highly sensitive digital microphones, it converts the collected sound into a visible light image, presenting it on the screen in the form of a graph, helping the team to detect and discover partial discharge early.

 

II. Common Types of Partial Discharge

1. Corona Discharge: This common form of partial discharge occurs when charge is directly dissipated from sharp surfaces of a conductor into the air. (This is the cause of the sound and RF emissions.) Generally, corona discharge is not a concern from a damage or safety perspective.

2. Arc Discharge: Arc discharge is a long-duration discharge caused by gas breakdown. Plasma is generated when current flows through air or any other normally non-conductive medium.

3. Surface Discharge: When a discharge propagates along the surface of an insulator, it is called surface discharge or surface tracking. It can be one of the most destructive types of partial discharge. Contamination and weathering of the insulator surface are two of the most common causes of surface discharge. In medium and high voltage equipment, this discharge occurs when the insulation is damaged (usually due to high humidity or poor maintenance). Moisture ingress is also a common cause of surface discharge.

4. Air Gap (Internal) Discharge: This is usually caused by defects in solid insulation such as cables, bushings, GIS joints, etc. Air gap discharge is extremely destructive to insulation and usually continues to expand until it causes complete failure.

 

III. Losses Caused by Partial Discharge

 

IV. Comparison of Traditional Methods and Intelligent Acoustic Imagers

 

V. Test Site

 

 

VI. Test Report Analysis

VII. Frequently Asked Questions

1. Can partial discharge of insulators be seen with an infrared thermal imager?  

Answer: Possibly. When partial discharge occurs in an insulator, it may cause the temperature of the discharge area to rise. However, this is not always the case. There is also the possibility that the temperature does not change or the change is very small and cannot be detected by a thermal imager. Therefore, it is better to use an acoustic imager to detect partial discharge, and an infrared thermal imager can be used as an auxiliary tool.

2. How far can an acoustic imager measure?

Answer: The detection distance is related to the size of the partial discharge point on site, the voltage level, and the discharge intensity. According to field tests, for common partial discharge faults, the general actual detection distance is generally 0.5-60 meters.  

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