Overview

The system is equipped with composite TEV sensors, ultrahigh-frequency sensors, high-frequency current transformers, and high-sensitivity ultrasonic sensors to collect partial discharge signals from high-voltage equipment. It employs multilevel frequency reduction techniques to reduce the discharge frequency of the signals, while utilizing a high-speed ADC circuit for signal digitization. Additionally, digital signal processing and adaptive filtering methods are used to eliminate interference, ensuring the reliability of the test data. By collecting signals from partial discharges in different high-voltage equipment, the system can quickly assess the operational status of the equipment. The tester can be installed for on-line detection without affecting the operation of the equipment. This capability allows for timely evaluation of the switchgear cabinet's operational status, significantly improving the reliability, safety, and efficiency of the equipment.
link:https://www.beijing-huazheng.com/transformer-test-equipment/partial-discharge-tester/hz-9003c-portable-handheld-multifunctional.html