The purchase of high-voltage test transformers should start from these aspects

High voltage test transformer is a product specifically used to detect electrical insulation strength. It can effectively detect leakage current in power devices and is a very practical product that can provide a DC high-voltage source. It has been effectively promoted and used in various electric field applications. Currently, it has been widely used in power maintenance and has also been well used in industries such as mining, metallurgy, and steel, and is loved by everyone.

High voltage test transformer is a new type of high-voltage testing equipment, which adopts a single frame core structure. The primary winding and high-voltage winding are coaxially wound on the core to reduce leakage flux and increase coupling between windings. The overall structure of the product is compact, highly versatile, easy to carry, and suitable for on-site testing of insulation performance of various high-voltage electrical equipment in power systems and power users. It is a testing instrument for power equipment testing and preventive testing. In addition to being able to perform AC power frequency withstand voltage tests, if equipped with capacitors of the same voltage level and capacity, silicon stacks, and high-voltage DC microamperes, it can be assembled into a DC high-voltage test device that can measure high-voltage DC leakage current. Due to its small size and light weight, it is very suitable for rapid transportation, movement, installation, and disassembly. It can be used in various situations, which is very convenient. Moreover, its shape is very beautiful and scientific. It has a dedicated panel for operation, with simple and comprehensive functions, very complete, and easy to operate. It is already a very mature one. The high-voltage test transformer has been well recognized and improved in practicality, especially when used in the field. This high-voltage generator is an ideal choice.

So, how should we choose a high-voltage test transformer?

1. You can go to the manufacturer to request to see the materials and semi-finished products used, or you can choose any high-voltage test transformer from the manufacturer and immediately open it to see if it uses waste silicon iron sheets. If the manufacturer hesitates or disagrees for various reasons, it means they will definitely use waste silicon iron sheets.

2. Next, shake the transformer repeatedly in all directions with as much force as possible, then open the oil valve and pour out a portion of the transformer oil to see if it turns red or turbid. If the transformer oil turns red or turbid. The manufacturer must have used scrap ferrosilicon sheets, which have a large amount of rust attached to them. No matter how these rusted scrap ferrosilicon sheets are processed, they cannot be completely disposed of. After being soaked in transformer oil and repeatedly washed, the rust scatters in the transformer oil, making the transformer oil red. This phenomenon is especially evident after long-distance transportation. The rust in the oil poses a serious hidden danger to the insulation of the transformer, and the service life of this transformer is definitely not long.

3. Check the electrical components.

4. Check the material used for the high-voltage bushing.

5. It is also possible to request the manufacturer to conduct a power on test. If the no-load current is not qualified, it indicates that there are problems with the materials and manufacturing processes they use, but the silicon iron sheet cannot be seen without long-distance transportation. The quality of high-voltage test transformers can be better distinguished by using the above methods.