Detection Technology
UHV(L) Power Frequency Series Resonant Test System
time：2025/7/16 source：Wuhan UHV reading：1063 time
The UHV(L) Power Frequency Series Resonant Test System is a highly efficient solution for testing ultra-high voltage (UHV) equipment, designed to deliver precise and stable high-voltage AC outputs with minimal power consumption. By utilizing the principle of series resonance, the system matches the frequency of the power supply with the natural resonant frequency of the test circuit, which includes an adjustable reactor (L) and the capacitance of the test object (Cₓ). This allows the system to generate extremely high voltages—up to 1000kV or more—while requiring only enough input power to compensate for circuit losses, making it far more energy-efficient than traditional test transformers.
A key advantage of this system is its compact and lightweight design, which makes it ideal for both laboratory and on-site testing. Unlike conventional high-voltage test setups that rely on bulky transformers, the UHV(L) Power Frequency Series Resonant Test System achieves high output voltages with significantly smaller and more portable components. This portability is particularly valuable for field applications, such as commissioning and maintenance of power cables, gas-insulated switchgear (GIS), and large transformers. Additionally, the system's self-limiting current characteristic at resonance enhances operational safety by reducing the risk of excessive short-circuit currents.
The system's precision control and flexibility make it suitable for a wide range of UHV applications. With a tunable frequency range (typically 30–300Hz), it can adapt to different test requirements, including power frequency withstand tests, partial discharge measurements, and dielectric assessments. Its ability to maintain low harmonic distortion (<3% THD) ensures accurate and reliable test results. Given the growing demand for UHV infrastructure in modern power grids, this UHV(L) Power Frequency Series Resonant Test System offers a cost-effective, scalable, and safe solution for ensuring the reliability of high-voltage equipment under real-world operating conditions.
Copyright description: all articles, pictures, video and other materials on this site belong to wuhan huatian power automation co., LTD. For use, please contact us; Permission to reprint articles, pictures, video and other materials please quote "from: huatian power".
UHV-282 Trip type Insulating Boots Device | 2025/7/16 | reading1139time Purpose of the AC withstand voltage test | 2025/7/16 | reading1249time return