Cradle to Consumer
Identity ID
bce95053-b419-43b6-b617-acd95ae977d6
Materials
Associated ID
8174d3bf-631f-4150-b5fa-5c388f38c1fa
Included activities starts
Included activities ends
Description
This dataset is a market dataset, representing the consumption market of the region; the dataset includes the transport of the product from the gate to the consumer end, and the transport service is calculated according to the transport situation of this product in this region. The product represented by this dataset is a dry-type current transformer, which is a current transformer whose insulating material is not insulating oil, with a single-unit weight of about 0.44975 kg and a rated voltage below 0.66 kV, mainly composed of an iron core, primary and secondary coils wound with enamelled wire and insulating materials such as epoxy resin, made through processes such as iron core manufacture, primary winding, secondary winding, body wrapping and assembly. The key upstream raw materials of this product are the iron core, enamelled wire and epoxy resin, etc., and downstream it is mainly applied in measurement and protection in industries such as power, industrial automation, construction and electrical energy metering. In terms of system boundary, infrastructure such as the manufacture of production equipment and the construction of plant buildings is not included within the dataset boundary. In terms of data sources and data processing, the data inventory is taken from the actual situation of production enterprises, and electricity and other energy are calculated using the Chinese average energy structure.
Activity Description
The system boundary covers the dry-type current transformer from cradle to gate, starting with raw-material inputs and ending when the finished dry-type current transformer leaves the factory. The main stages, in sequence, are core manufacture, primary winding, secondary winding, active-part wrapping with materials such as epoxy resin, and assembly.
Process Description
A current transformer is a transformer in which the secondary current is actually proportional to the primary current under normal use conditions, and the phase difference is close to zero when the connection method is correct. According to the insulation material and operation mode, it can be divided into dry type, oil-immersed type, SF6 and electronic current transformer. Dry-type current transformer refers to a current transformer whose insulating material is not insulating oil. It is mainly composed of an iron core, a primary coil and a secondary coil (wound by enameled wire) and insulating materials (such as epoxy resin). 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, construction, and electric energy measurement.
Time period
2023
2026
Geography
China,Yunnan
Macroeconomic value
Business-as-Usual
Data validation
Yes
Technology
Current Technology
Technology comment
The production of dry current transformers mainly includes processes such as core making, primary winding, secondary winding, body wrapping 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 body is wrapped (epoxy resin, etc.) and dried, and then assembled into a finished dry-type current transformer.