Simulated Partial Discharge Tester



A simulated partial discharge tester is a professional instrument used to detect partial discharge phenomena in power equipment. Below is an overview of an article about the simulated partial discharge tester:



Simulated Partial Discharge Tester



Introduction



Partial discharge detection is a key link in power system maintenance, which is of great significance for preventing power equipment failures and improving system reliability. The simulated partial discharge tester can detect partial discharge phenomena during equipment operation, helping to evaluate the insulation status of power equipment, thereby taking preventive measures to ensure the safe and stable operation of the power system.



Product Overview




  • Name: Simulated Partial Discharge Tester

  • Model: [Specific Model]

  • Manufacturer: [Manufacturer Name]



Main Features




  • Analog Display: Uses analog display technology to intuitively show partial discharge signals.

  • High Sensitivity: Capable of capturing weak partial discharge signals.

  • Wide Frequency Band: Covers a broad range of ultrasonic frequencies, typically from 20kHz to 200kHz.

  • Portable Design: Lightweight and easy to carry, suitable for field operations.

  • Multifunctional Display: Equipped with an analog display panel to show detection results and setting parameters.

  • Built-in Storage: Can save a large amount of detection data for subsequent analysis.

  • Long Battery Life: Supports long-duration continuous operation.

  • Quick Location: Helps locate the discharge source through sound indication and numerical display.



Technical Parameters




  • Detection Frequency: 20kHz to 200kHz

  • Sensitivity: ≥100dB

  • Dynamic Range: ≥60dB

  • Battery Life: ≥8 hours

  • Display Screen: Analog display panel

  • Dimensions and Weight: [Specific Length]×[Specific Width]×[Specific Thickness], weight [Specific Weight]kg

  • Operating Temperature: -20℃ to +50℃

  • Storage Temperature: -40℃ to +70℃



Application Scenarios




  • Power Transformers: Detect partial discharge phenomena inside transformers.

  • Switchgear: Including high-voltage switchgear and ring main units.

  • Cable Joints: Check the insulation condition of cable joints and terminations.

  • GIS/GCB: Detect partial discharge in gas-insulated switchgear.

  • Motors: Evaluate the insulation status of motors.



Usage Instructions




  • Power On: Press the power button to start the device.

  • Settings: Adjust parameters such as detection frequency and sensitivity.

  • Detection: Place the probe near the equipment under test and observe the analog display panel.

  • Location: Locate the discharge source based on sound prompts and indications on the analog display panel.

  • Data Recording: Save the detection data.

  • Power Off: After detection, press and hold the power button to turn off the device.



Maintenance and Care




  • Cleaning: Wipe the device surface with a soft cloth.

  • Storage: Store in a dry and ventilated place.

  • Calibration: Calibrate the device regularly.



Safety Precautions




  • Read Before Operation: Please read the user manual carefully.

  • Protective Measures: Wear necessary personal protective equipment.

  • No Touching: Do not touch high-voltage equipment.



Working Principle



The working principle of the simulated partial discharge tester is based on the detection of high-frequency pulse currents generated by partial discharge. When partial discharge occurs in the insulation medium of power equipment, high-frequency pulse currents are generated. These pulse currents are captured by the simulated partial discharge tester and enhanced through a series of signal processing steps (including low-noise amplification, filtering amplification, and main amplification). Finally, the discharge pulses are displayed on the analog display panel in a specific manner, such as in the form of an elliptical scanning baseline, and their intensity can be shown through a pointer or indicator light.



Advantages and Features




  • Analog Display: Uses analog display technology to intuitively show partial discharge signals.

  • High Sensitivity: Capable of capturing weak partial discharge signals.

  • Quick Location: Helps locate the discharge source through sound indication and analog display.



Conclusion



The simulated partial discharge tester is an important tool in power system maintenance. It helps technicians detect potential partial discharge problems early, thereby taking preventive measures to ensure the safe and stable operation of the power system.




The above is a typical article overview of the simulated partial discharge tester. Specific product features and parameters may vary depending on the manufacturer and model. If you need detailed information about a specific model, please provide the specific model name or other relevant information.