How to detect partial discharge with a partial discharge detector

Partial discharge detector  is an instrument used to detect partial discharge in power equipment. Partial discharge refers to the discharge phenomenon caused by partial defects or bad contacts in power equipment. The following are the detection steps for a partial discharge detector:

1. Preparatory work: Firstly, ensure that the equipment to be tested is in a safe power outage state. Then, make the correct wiring and settings according to the instructions of the testing instrument.

2. Setting parameters: Based on the type and specifications of the equipment to be tested, set the relevant parameters of the partial discharge detector, such as frequency range, gain, threshold, etc.

3. Monitoring signal: Connect the input channel of the partial discharge detector to the equipment to be tested. The monitor will collect voltage or current signals from the equipment to be tested and perform real-time monitoring and analysis.

4. Data collection: Start the partial discharge detector and start the data collection process. The monitor will record and save any abnormal partial discharge signals that may exist in the equipment.

5. Data analysis: analyze the collected data, and judge whether there is partial discharge through feature extraction and pattern recognition algorithm. Common data analysis methods include time domain analysis, frequency domain analysis, phase analysis, etc.

6. Result evaluation: Based on the data analysis results, evaluate the partial discharge situation of the equipment. Usually, parameters such as amplitude, frequency, and duration of partial discharge signals can be used to evaluate the severity of discharge.

7. Report generation: Organize the detection results into a report, recording information such as the location, characteristics, and evaluation results of partial discharge.

It should be noted that partial discharge detection is a highly technical task that requires experienced professionals to operate and analyze. Meanwhile, different types of power equipment may require the use of different partial discharge detection instruments and methods. Therefore, before conducting partial discharge testing, it is recommended to consult relevant professionals or manufacturers to ensure the correct use and interpretation of the test results.
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