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Date：08-08-2022
Product Description
For oil-immersed transformers of 1000kVA and above, outdoor thermometer-type signals should be installed, and then long-distance signals. Oil-immersed transformers of 800kVA and above should be equipped with gas relays and pressure protection devices. Oil-immersed transformers of 800kVA can also be equipped with gas relays according to the following requirements and in consultation with the manufacturer. Dry-type transformers shall be installed by the manufacturer, temperature measuring devices, more generally for 630kVA transformer installations.
Products are classified according to the number of phases, and single-phase transformers can be divided into three-phase transformers and single-phase transformers. In the three-phase power system, the general application of three-phase transformers can also be composed of three single-phase transformer groups when the transportation conditions are extremely large and affected by the three-phase power system.
Product Category
According to the number of windings, it can be divided into two-winding transformers and three-winding transformers. The transformer is usually a two-winding transformer, i.e. there are two windings on the core, one for the primary and one for the secondary. Three-winding transformer Large-capacity transformers (above 5600 kVA) connect three power lines of different voltages. In special cases, more windings are also applied.
According to the structure of the classification form, it can be divided into iron core transformer and transformer steel. Compared with the winding encapsulation of iron core type transformers around the core; since the core periphery is wrapped in the winding transformer steel. But the two are slightly different in structure, and there is no essential difference in principle. Power transformers are all core types.
According to the insulation and cooling conditions of the point, it can be divided into oil-immersed transformers and dry-type transformers. To enhance insulation and cooling conditions, the transformer core and windings are immersed in a tank containing transformer oil. In special cases, such as street lamps, miner’s lamp lighting, and dry-type transformers.
In addition, there are various special transformers. For example, testing high voltage transformers, furnace transformers, welding transformers and thyristor circuits with transformers, for measuring instrumentation voltage transformers and current transformers
