Oil-immersed transformers are important power equipment, mainly for industrial and mining enterprises, civil construction power supply system. Oil-immersed transformer suppliers said that it can be installed inside and outside to use, but the use environmental conditions require higher. In the distribution system, there are many types of oil-immersed transformers, the classification is as follows:
1. according to the number of distinction
Can be divided into three-phase transformer and single-phase transformer. In the three-phase power system, generally use three-phase transformer, when the capacity is too large and limited by the transport conditions, the three-phase power system can also be used three single-phase transformer transformer group.
2. according to the winding distinction
Can be divided into double-winding transformer and three-winding transformer. The usual transformers are dual-winding transformers, that is, there are two windings on the core, one for the original winding, one for the secondary winding. Three-winding transformers are larger capacity transformers (above 5600 kVA) to connect three different voltage lines.
3. according to structural classification
Can be divided into core-type transformers and iron-type transformers. Such as the winding package in the core of the core is the core transformer; such as the core package in the winding outside the iron-shell transformer. The two are slightly different in the structure, there is no essential difference in principle.
