1. The YDQ series products feature entirely new design concepts, material selection, and manufacturing processes. Therefore, they are not only compact in size, lightweight, and aesthetically pleasing, but also meet high international standards in all technical indicators.
The YDQ series products use high-quality cold-rolled DQ-151 oriented silicon steel sheets stacked into a multi-stage cylindrical frame-shaped iron core. On a specially made high-strength insulating cylinder, QZ-type wires are used to directly and continuously wind the high-voltage tower-type coil. The shell is of a conformal size and filled with SF6 gas.
2. The difference between YDQ (JZ) products and YDQ products lies in the clever integration of the high-voltage rectifier silicon stack inside the high-voltage bushing. By inserting or extracting the short-circuit rod, the YDQ can be switched between power frequency high-voltage AC output and high-voltage DC output.
3. The difference between YDQ (C) products and YDQ products lies in the internal structure of the bushing and the structure of the high-voltage coil.
4. YDQW products are based on ordinary transformers, with improved processes and technology, adopting different insulation structures, and utilizing the arc-extinguishing capability of SF6 gas itself. This results in essentially no partial discharge in the transformer at high voltages. When using this transformer as a high-voltage power source for partial discharge testing of electrical equipment, it can be combined with high-precision
With the advancement of basic scientific research in our country and the application of new materials and processes, the new medium sulfur hexafluoride gas has been introduced into the application field of power equipment. Due to the excellent insulation performance, arc-extinguishing capability, and non-flammability of sulfur hexafluoride gas, it has been widely used as a new insulating medium, leading to the development of inflatable test transformers.
After years of effort, the inflatable lightweight test transformer has been successfully developed. Compared with traditional oil-immersed lightweight test transformers, this series of products reduces weight by 20% to 60% (depending on voltage and capacity levels), and has no oil pollution. The voltage level of a single test transformer can reach 300KV. Due to the adoption of new production processes, the technical performance of the products has been significantly improved, making them particularly suitable for field work and frequent mobile working conditions.
The high-voltage test transformer is produced based on the Ministry of Machinery and Electronics test transformer standard, with extensive improvements on the basis of similar original products. The AC/DC high-voltage test transformer is a new type of product produced based on the YD series test transformers, improved according to the national standard "JB/T 9641-1999". This series of products features compact size, lightweight, compact structure, complete functions, strong universality, and convenient use. It is particularly suitable for insulation strength testing under power frequency or DC high voltage for various high-voltage electrical equipment, electrical components, and insulating materials in power systems, industrial and mining enterprises, and scientific research departments. It is an indispensable important equipment in high-voltage testing.
