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A power transformer utilizes the principle of electromagnetic induction to convert alternating current (AC) of one voltage level into AC of another voltage level at the same frequency, thereby serving to transmit electrical energy. It reduces high voltage electricity to a lower voltage level suitable for use by user equipment, or elevates low voltage electricity to high voltage for transmission, thereby achieving the effect of electrical energy exchange.
Power transformers are classified into oil immersed transformers and dry type transformers based on their cooling methods.
Oil immersed transformers use transformer oil for insulation and heat dissipation. Common cooling methods include natural cooling (ONAN), forced air cooling (ONAF), forced oil circulation air cooling (OFAF), and forced oil circulation water cooling (OFWF).
Dry type transformers use air or solid insulating materials such as epoxy resin for cooling. Common cooling methods include natural air cooling (AN) and forced air cooling (AF).
By phase number, transformers are classified into single phase transformers and three phase transformers.
1.Achieve efficient power transmission
Whether it is stepping up or stepping down, Power Transformer is a key device to ensure efficient transmission of electric energy. When the high voltage of the power plant is transmitted over long distances through high-voltage transmission lines, Power Transformer can effectively reduce power loss. When distributing electricity to daily life, Power Transformer reduces high voltage electricity to low voltage electricity suitable for daily life equipment.
2.Improve economic efficiency
When conducting power transmission operations, it can effectively reduce power loss and significantly save electrical energy. Stable voltage can ensure that the production line does not stop. It can also reduce the cost of laying cables in terms of power grid investment.
3.Guarding the safety of the power grid
Voltage fluctuations may cause short circuits, leading to potential fire hazards and damage to electrical appliances. The electrical isolation of the Power Transformer can prevent the transmission of faults such as lightning strikes and short circuits, reducing the risk of accidents and providing a stable voltage for the operation of electrical appliances.
4.Low carbon and environmental protection
With the advancement of technology, the design of Power Transformers has been continuously innovated. The carbon emissions of primary energy efficient transformers are significantly lower than those of traditional designs. The use of the main transformer has replaced the scattered small-capacity transformers, and at the same time, it has saved space.
