Setting a New Benchmark for Power Frequency Withstand Voltage Testing

In the field of power equipment testing, the efficiency of power frequency withstand voltage test devices directly impacts the accuracy of test results. Wuhan Yueningaocao Power Equipment Co., Ltd.'s newly upgraded next-generation power frequency withstand voltage test device, based on the deep optimization of the classic TDM-type transformer, redefines industry standards with breakthroughs in five core technologies, delivering a transformative experience for high-voltage testing!

I. Insulation Revolution: Shrinking Size, Surging Performance

Traditional transformers often face issues such as large size and uneven heat dissipation due to their single-layer insulation structure. This product innovatively applies a multi-layer insulation technology based on the "distance effect," transforming internal insulation into a coordinated three-dimensional protective network through precisely designed oil channel segmentation. This not only enhances insulation strength but also reduces volume by over 30%, effortlessly meeting the demands of compact space operations.

II. Bid farewell to leakage troubles and achieve smoother operation

To address the long-standing oil leakage issue in the TDM series, the R&D team redesigned the oil circuit system:

Top oil filling hole design: The filling hole is relocated to the top of the bushing, ensuring the oil passage between the bushing and the tank body remains unobstructed to form an oil reservoir, effectively addressing the issue of oil expansion overflow at high temperatures.
Multifunctional Sleeve Integration: The sleeve not only supports critical components such as silicon stacks and short-circuit rods but also serves as an oil reservoir, achieving one-piece multi-functionality and reducing failure rates by 70%.

3. No discharge hazards, ensuring more accurate test data

Traditional metal components are the hidden culprits that interfere with test results. This device employs fully metallic fixed leads and voltage equalization technology to eliminate local electric field distortion, ensuring zero discharge in high-voltage environments, making it particularly suitable for interference-sensitive scenarios such as GIS equipment and cables.

IV. Military-grade materials, achieving another breakthrough in structural strength

Core Innovation: Utilizing DQ-type 0.30mm thin cold-rolled silicon steel sheets, combined with aerospace-grade composite materials for fastening, this design reduces magnetic loss by 15% and enhances anti-vibration performance by 50% compared to traditional core-piercing screw solutions.

Coil winding process: Multi-layer tower winding with concentric cylindrical layers ensures more uniform current distribution and superior temperature rise control, exceeding national standards by 20%.

5. Portable Design, Doubling Operation Efficiency

The cabinet adopts a modular and compact structure, reducing weight by 40% and enabling single-person handling. With a matte anti-corrosion coating and IP54 protection rating, it withstands harsh outdoor conditions, making it particularly suitable for mobile inspection needs in wind power, railways, and other fields.

Why choose it? ​

✅ Insulation redundancy design, certified by a third party with a 1000-hour full-load aging test

✅ 3-year extended warranty with remote diagnostics support

✅ Complete the workload of traditional equipment in 1 hour in just 30 minutes

Applicable scenarios

▸ Power Research Institute Testing ▸ Switchgear Factory Quality Inspection ▸ New Energy Power Plant Operation and Maintenance ▸ High Voltage Cable Final Acceptance