In the field of high-voltage switch manufacturing, factory testing is not only the final inspection of product performance, but also a ultimate test of the safety protection system and long-term reliability of testing equipment. Voltage flashover or equipment failure during an experiment may result in damage to expensive GIS (gas insulated switchgear) samples and even lead to safety accidents. In response to the pain points in this industry, Wuhan UHV Power Technology Co., Ltd. (referred to as "Wuhan UHV") relies on nearly 22 years of technological accumulation to build multiple safety protection systems and high reliability guarantee mechanisms in its UHV series variable frequency series resonant AC withstand voltage devices, committed to providing reliable testing equipment for high-voltage switchgear.

Multiple hardware protections, constructing a test 'secure firewall'

The risk control of high-voltage testing is primarily focused on prevention. The Wuhan UHV series series series series resonance test device has been designed with comprehensive hardware protection functions at the system architecture level. The device integrates overvoltage protection, overcurrent protection, zero start protection, and critical flashover (detuning) rapid protection. Among them, flashover protection is of utmost importance to the technical director of the switch factory - when the test sample breaks down during the boosting process, the system can identify the detuning state within milliseconds and quickly cut off the output, effectively limiting the impact of overvoltage and overcurrent on the test sample and testing equipment, and minimizing fault damage.

High reliability core components ensure long-term stable operation

The long-term reliability of the experimental device depends on the quality and design redundancy of the core components. Wuhan UHV insists on using high specification components in the series of series resonance test equipment products. Its variable frequency power supply uses imported power modules (such as IGBT), which have stronger overload tolerance and lower heat generation, ensuring the stability of the power supply under frequent start stop and full load conditions. The high-voltage reactor adopts high-performance silicon steel sheets and strict vacuum impregnation process, effectively reducing the operating temperature rise and extending the service life of the equipment. At the same time, anti loosening technology is adopted for key connection parts to ensure long-term reliability of electrical connections in the vibration environment of frequent handling and on-site testing.

Seismic resistant structure design, suitable for complex working conditions in factories

The production environment of high-voltage switchgear plants is subject to vibration sources such as vehicle operation and large equipment handling. The UHV series series series series resonance test device fully considers the vibration effects of industrial sites in its structural design. The chassis adopts a reinforced frame, and buffer fixing parts are used between internal modules to enhance the equipment's anti vibration ability from a structural perspective. This design not only ensures the stability of test data, but also reduces device looseness and failures caused by mechanical stress, improving the overall availability of the equipment.

Intelligent self inspection and fault warning

The reliability of equipment is not only reflected in passive protection, but also in active self health management. The UHV series control system has a power on self-test function, which can make preliminary judgments on the status of key modules such as variable frequency power supply, excitation transformer, and voltage divider. During the experiment, the system monitors the operating parameters of each component in real time. When abnormal temperature rise or changes in working conditions are detected, early warnings can be issued to provide a basis for the switch factory to arrange equipment maintenance and test plans, avoiding production interruptions caused by equipment failures during the experiment.

Reliability verified through practical experience

The final test of reliability comes from market applications. The series resonance products of Wuhan UHV have formed a mature series of integrated testing platforms, widely used in the factory testing process of many domestic high-voltage switch and power equipment manufacturing enterprises. Long term stable operation records are the most powerful proof of its safety protection and reliability design.

For high-voltage switch manufacturing enterprises, choosing testing equipment is equivalent to choosing a threshold of safety and quality. The Wuhan UHV series series series series resonance test device is assisting switch factories in maintaining the safety bottom line of every factory test with solid safety protection design and reliable operating quality.