0.1Hz Very-Low-Frequency high voltage generator

The new generation of AC withstand tester, replacing harmonic withstand tester, is widely used in AC withstand test of large capacity equipments such as generator, cable, insulator, power capacitor, large transformer etc. Not only can it be the first choice of on-site and outdoor testing, but also as the ultra-low frequency source.

Advantage of 0.1Hz HRVLF series
1、Small volume, light weight, easily to operate. Theoretically speaking, the capacity is of 1/500 of power Frequency.
2. AC ultra-low frequency tester doesn’t form tree-clearance in the insulating condition.
3. Unlike DC test, it’s uneasy to destroy cables; meanwhile the capacitance effect of testing articles has no influence to it.
4. Pernicious polarization charge would make no way to dielectric during the testing.

Features of function
1. Adopting digital convention technology and microcomputers controlling system make the testing process completely automatic.
2. The large screen of liquid crystal and Chinese input operating system insure that testing wave-form (Sinusoid Wave) can be displayed; testing reports can be printed.
3. Auto-protection of over-current and over-voltage, the research，design and manufacture of independent intellectual property rights according to power standard
4. Multi-frequency selections (0.1Hz，0.05Hz，0.02Hz) strengthen the load-bearing capability.

Warmly congratulate our company as the only company on winning the award “China Famous Brand” of the State Grid electricity power testing industry. The award is well-known by the Electric Power System of State Grid.

Wuhan Wugao HuaRui High voltage Technology Co.,Ltd.，whose preexistence is State Grid Wuhan High-voltage Testing Research Institute, has combined the essence of institutional reform and science & technology industry with the progress and development of high-voltage technology. 

As a Manufacture and Researcher having its own independent intellectual property rights, it is the domestic professional producer of transmission and transformation measuring and testing equipments of big current & high voltage in complete set. We also is the earliest institute who has researched and developed the technology of high voltage testers, which is applied by our competitors in manufacturing productions through technical transformation. In aspects of producing domestic testing and special transformers and its varieties, it is also one of the largest, the strongest and the most outstanding manufactures in production capacity and technology strength. Domestically, there are no companies preceding us in technically developing high-tech products and we are endowed with successful experience and accumulation of the sophisticated technologies. Situated in the high-and-new technology development zone of WuHan East-lake, it has foundered and registered as a joint-stock hi-tech company comprehensively covering doing research, design, manufacturing, sales and service support and applies the modernized and collectivize management system. The subsidiaries includes: the original Specialized Equipment of Power Testing Factory, Testing Transformer Factory, State Grid HuaRui High-voltage Technology Co.,Ltd.，