In the factory quality control of high-voltage switchgear (especially GIS, circuit breakers, etc.), the series resonance test device is the core equipment for testing the insulation performance of the equipment. The core technical parameters directly determine the effectiveness and safety of the experiment. Wuhan UHV Power Technology Co., Ltd. (referred to as "Wuhan UHV") has been deeply involved in the field of high-voltage electrical measurement for nearly 22 years. Its UHV series variable frequency series resonant AC withstand voltage device provides a high standard test solution for high-voltage switchgear with precise control of key indicators.
Accurate frequency modulation, covering all frequency bands for switch testing
The voltage withstand test of high-voltage switches has strict requirements for frequency response. The Wuhan UHV series adopts frequency conversion tuning technology, which can achieve precise resonance in a wide frequency range of 30Hz to 300Hz. This feature ensures that the device can accurately match the resonance frequency points of various switch devices, effectively avoiding test voltage distortion caused by frequency deviation and ensuring the authenticity and reliability of test results.
Pure waveform, safeguarding insulation safety
The waveform quality of the test voltage is the core scale for measuring the performance of the device. The series resonant circuit itself has excellent filtering characteristics, and the UHV series further optimizes its design based on this to ensure that the output waveform distortion rate is strictly controlled within the industry's high standard range. Pure sine wave voltage can truly simulate the operating conditions of equipment, avoiding additional damage to the insulation of the test sample caused by harmonics, especially suitable for enclosed composite electrical appliances such as GIS that are extremely sensitive to insulation performance.
Modular architecture, flexible response to multiple voltage levels
The product line of high-voltage switchgear usually covers voltage levels from 35kV to 750kV and even higher, with diverse testing requirements. The UHV series adopts a modular design concept, and through the flexible series parallel combination of reactors, multiple voltage and capacity configuration schemes can be constructed. For example, standard solutions ranging from UHV-75kVA/75kV to UHV-540kVA/270kV, as well as UHV-750kV/6A integrated AC withstand voltage testing platforms, can be configured as needed. The flexibility of "one machine for multiple uses" greatly reduces the repeated investment cost of equipment in switch factories.
No partial discharge technology, directly targeting the pain points of GIS testing
For high-voltage switchgear such as GIS, partial discharge detection and withstand voltage testing are equally important. The UHV (W) non partial discharge variable frequency resonance test system launched by Wuhan UHV combines the series resonance withstand voltage and non partial discharge measurement functions. The system can synchronously monitor the local discharge of the test sample during the boosting process, helping the switch factory detect insulation hazards at the factory stage, improve product quality from the source, and meet the delivery requirements of high-end users for "zero defects" in equipment.
Mature solutions to reduce selection risks
Based on rich industry application accumulation, Wuhan UHV has formed multiple standardized series resonance schemes for different voltage levels and sample types. These solutions have been validated through extensive engineering practice, with mature and reliable parameter configurations, providing direct technical selection references for switch factories and significantly reducing the technical risks and time costs of customized development.
As a high-tech enterprise integrating scientific research, development, production, sales, and service, Wuhan UHV is committed to serving the quality control process of high-voltage switch manufacturing enterprises with solid technical parameters and reliable system performance. For switch manufacturers who pursue experimental accuracy and equipment reliability, the UHV series series series resonant testing device provides a professional option that has been tested in the market.