Cradle to Gate
Identity ID
c3175144-4f6a-4448-9fbf-bd8e545a648e
Materials
Associated ID
e8fcc01f-c0be-4155-99da-e8ee6ad642fc
Included activities starts
Included activities ends
Description
The product represented by this dataset is an oil-immersed voltage transformer, namely a voltage transformer using transformer oil as the insulating and cooling medium, with an equipment voltage level of 110 kV and a single-unit weight of about 987.78 kg, mainly composed of an iron core, a primary coil and secondary coil wound from enamelled wire, an oil tank and transformer oil, etc., manufactured through processes such as iron core wrapping, primary winding, secondary winding, oil tank fabrication and assembly. The key upstream raw materials of this product are the iron core, enamelled wire and transformer oil, etc., and the downstream is mainly applied to measurement and protection in industries such as power, industrial automation, new-energy power generation and transportation. As for the system boundary, infrastructure such as the manufacture of production equipment and plant construction is not included within the dataset boundary. In terms of data sources and data processing, the data inventory is formed by merging data from multiple sources, and energy such as electricity is calculated using China's average energy mix.
Activity Description
The system boundary is the cradle-to-gate of the oil-immersed voltage transformer. The starting point is the input of raw materials and the end point is the delivery of the finished oil-immersed voltage transformer from the factory. The main stages include core wrapping (iron core, etc.), primary winding (enameled wire, etc.), secondary winding, oil tank production (transformer oil, etc.) and assembly.
Process Description
A voltage transformer is a transformer in which the secondary voltage is actually proportional to the primary voltage under normal conditions of use, and the phase difference is close to zero when the connection method is correct. It is used to convert high voltage into low voltage, thereby measuring or protecting the power system. It can be divided into dry-type, oil-immersed, SF6 and electronic voltage transformers. Oil-immersed voltage transformer refers to a voltage transformer that uses transformer oil as the insulation and cooling medium. It is mainly composed of an iron core, a primary coil and a secondary coil (wound by enameled wire), a fuel tank, and transformer oil. It is in the form of a bench-mounted or cabinet-mounted transformer. It is widely used in measurement and protection in industries such as electric power, industrial automation, new energy power generation, and transportation.
Time period
2023
2026
Geography
China
Macroeconomic value
Business-as-Usual
Data validation
Yes
Technology
Current Technology
Technology comment
The production of oil-immersed voltage transformers mainly includes processes such as core wrapping, primary winding, secondary winding, oil tank production and assembly. The enameled wire is wound to form a primary coil and a secondary coil. After being assembled with the iron core into an assembly, the oil tank is made and transformer oil is filled. After assembly, the finished oil-immersed voltage transformer is made.