Cradle to Gate
Identity ID
4c885dca-69ba-475d-b0a5-9a6ad2dffa46
Materials
Associated ID
50e83b64-2a72-404d-8318-4543ca9a266f
Included activities starts
Included activities ends
Description
The product represented by this dataset is an SF6-type voltage transformer, namely a voltage transformer using SF6 gas as the insulating medium, with a rated voltage of 10 kV and a single-unit weight of about 70.48 kg, mainly composed of an iron core, coils wound from enamelled wire and SF6 gas, etc., manufactured through processes such as iron core fabrication, coil winding, insulation and assembly. The key upstream raw materials of this product are the iron core, enamelled wire and SF6 gas, etc., and the downstream is mainly applied to measurement and monitoring 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 covers the SF6-insulated voltage transformer from cradle to gate, starting with raw-material inputs and ending when the finished SF6-insulated voltage transformer leaves the factory. The main stages, in sequence, are core manufacture, coil winding with enameled wire, SF6 insulation, 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. SF6 type voltage transformer refers to a voltage transformer that uses SF6 gas as the insulating medium. It is mainly composed of an iron core, a coil (wound by enameled wire), and SF6 gas. It is in the form of a bench-mounted or cabinet-mounted transformer. It is widely used in measurement and monitoring in industries such as electric power, industrial automation, new energy power generation, and transportation.
Time period
2022
2026
Geography
China
Macroeconomic value
Business-as-Usual
Data validation
Yes
Technology
Current Technology
Technology comment
The production of SF6 voltage transformers mainly involves processes such as core making, coil winding, insulation, and assembly. The enameled wire is wound to form a coil, which is then assembled with the core into a subassembly. After SF6 insulation treatment and final assembly, the finished SF6 voltage transformer is produced.