HV Hipot Test:Why is the price difference of AC high voltage withstand voltage test transformers so large in the market?

At present, there are many manufacturers and distributors of AC high-voltage withstand voltage test transformers in the domestic and foreign markets. Due to the different cultural concepts and corporate goals pursued by enterprises, especially some problems brought about by the rise of Internet sales models, the quality of test transformers The difference is huge, and the price is also very different.

But it is well known that the quality of AC high-voltage withstand voltage test transformer depends on nothing more than ferrosilicon sheets, high-voltage bushings, insulating materials, manufacturing processes, and electrical components in the control part. Among them, ferrosilicon sheets, high-voltage bushings, insulation The quality of materials and electrical components is the most important. In terms of ensuring quality, high-silicon non-oriented ferrosilicon sheets are the best, and high-voltage bushings are made of silicone rubber, followed by nylon or epoxy resin. If such an analysis is made, it is completely understandable why the prices of test transformers on the market vary so much.

As an old manufacturer engaged in the production of AC high-voltage withstand voltage test transformers for more than 30 years, our company would like to introduce to the majority of users and friends the practice of illegal test transformer manufacturers using a large number of inferior materials in order to pursue the maximum benefit, which harms the majority of users. Tricks and related means for users to identify:

1. Using waste ferrosilicon sheets. This kind of material can be bought in the market at 5,000-8,000 yuan/ton, while the genuine material costs about 36,000 yuan/ton, and the price difference between the two is 5-7 times.

2. The price difference between high-voltage bushing nylon and silicone rubber is 2 times.

3. Electrical materials and electrical components are fake and inferior products, and the price difference between the two is 3-6 times.

4. The insulating material does not use high-quality but other materials instead.

5. Cutting corners on craftsmanship.

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