زيت محركات اصطناعي بالكامل 
زيت محرك الديزل 
زيت التروس 
زيت الدراجات النارية Recently, the Gansu Provincial Department of Science and Technology announced the 2022 Gansu Provincial Science and Technology Award projects. The “Development and Application of High-End Transformer Oil Series Products” project of PetroChina Lubricant Company’s Lanzhou Lubricant Research and Development Center won the First Prize for Scientific and Technological Progress.
This project addresses the domestic production challenges for transformer oil supporting China’s “Belt and Road” export power transformers, as well as the demand for transformer oil for world-class power transmission projects such as ultra-high-voltage and flexible direct current transmission. It developed a series of performance evaluation methods for transformer oils compatible with ultra-high-voltage operating conditions. By studying the effects of base-oil composition and additive formulations on transformer oil performance, it was the first in China and internationally to propose the ideal component compositions of different transformer oils and the hydrogen-generation mechanism of metal passivators, thereby resolving the current deficiencies of poor oxidation resistance, high gas-generation rates, and failure to meet international standards in transformer oils.
Developed antioxidant-free transformer oil technology, overcoming the technological barriers that had existed domestically for 20 years. The developed product Petro45U broke the international monopoly, extensively replacing imported products and becoming the supporting oil for export transformers. Discovered the synergistic effects among aromatic hydrocarbons with different structures, developed a new-generation gas-inhibiting agent at an internationally leading level, and developed transformer oil that simultaneously complies with IEC and ASTM standards, filling an international gap. Developed an evaluation method for assessing the performance of DC transformer oil under ultra-high-voltage operating conditions, independently developed new-generation high-end DC transformer oil production technology, and formulated for the first time the Standard for the Quality of Operating Oil for Converter Transformers in Ultra-High-Voltage Direct-Current Transmission, providing important guidance and standards for the highly reliable operation of world-class power transmission projects.
The series of naphthenic transformer oil products developed under this project have all passed evaluation and certification by DOBLE, SIEMENS, and ABB. The products have successively been used in world-class power transmission projects, including the key supporting project for the 2022 Beijing Winter Olympics—the ±500 kV “Zhangbei” renewable energy flexible DC grid pilot demonstration project; the “Liuzhou–Kunming–Longyan” ±800 kV ultra-high-voltage multi-terminal flexible DC project; Pakistan’s “Matiari–Lahore” ±660 kV high-voltage DC transmission project; and Turkey’s Van ±500 kV high-voltage DC interconnection project. They have also been exported to countries such as Pakistan, the Philippines, and Greece as supporting transformer oil for products exported by major domestic transformer manufacturers and joint-venture transformer manufacturers.
The achievements of the “Development and Application of High-End Transformer Oil Series Products” project have consolidated Kunlun Lubricants’ leading position in the domestic high-end transformer oil market, provided strong support for promoting China’s energy transformation and green development as well as the national energy security strategy, and provided strong backing for the development of China’s transformer manufacturing industry, the construction of UHV transmission projects, and the implementation of initiatives by State Grid Corporation of China and transformer manufacturing enterprises to respond to the Belt and Road Initiative and increase export market share.
