What are the principles and functions of the series resonance withstand voltage test device system:
Series resonance withstand voltage test device This system is based on the LCR damped oscillation principle. On the basis of completing cable pressurization, it forms a damped oscillation voltage wave through the built-in high-voltage reactor, high-voltage solid-state switch, and the cable under test, applying a sinusoidal voltage wave close to power frequency on the cable under test, exciting partial discharge signals at potential defects in the cable. Based on the pulse current method for high-sensitivity detection of partial discharge signals, combined with high-speed data acquisition equipment, it completes the detection, acquisition, and upload of partial discharge signals. A single test process takes about one minute, with high test efficiency and no damage to the cable under test. On the basis of obtaining partial discharge data, the data analysis software automatically completes cluster analysis and traveling wave positioning, facilitating users to comprehensively evaluate cable condition.
Adopting a split structure design, each piece weighs about 20Kg, easy to carry on site.
Partial discharge level measurement is carried out in accordance with the IEC 60270 standard.
The test frequency is close to the power frequency voltage, with good equivalence.
Short pressurization time, non-destructive testing.
High-precision data acquisition module for measurement and data collection.
The control system uses a laptop, Windows system, and wireless communication module (WLAN).
With automatic connector calibration mode.
Automatically adjust system parameters to optimize test sensitivity.
Apply mathematical statistics methods to analyze and locate partial discharge points, and process data online.
Menu-guided operation interface.
Portable design, light weight, easy to operate and use.
Convenient transportation, simple on-site layout.
Simple operation, very suitable for on-site testing.
Adopts advanced electronic and signal processing technology.
Intuitive and simple operation.
Can provide effective support for cable evaluation.
