What is the cooling mode of transformer?
Writer： Hengfeng you electric Time：2023-04-19 views：times
The cooling mode of transformer is determined by the cooling material and circulation mode;
Because the oil immersed transformer is also divided into internal cooling mode of automobile oil tank and external cooling mode of automobile oil tank, the cooling mode of oil immersed transformer is indicated by four letter number.
What is the cooling mode of transformer?
First English letter: cooling material in contact with winding resistance.
Mineral oil or insulating layer liquid with ignition point exceeding 300 ℃;
Insulating liquid with ignition point exceeding 300 ℃;
An insulating layer liquid, which can not accurately measure l --- ignition point;
The second English letter: the circulation mode of internally cooled substances. Oil is a natural convective heat transfer cycle according to the fluidity of cooling machinery and equipment and winding resistance;
The oil drain in the cooling machine and equipment is forced circulation, and the oil drain is convective heat transfer circulation according to the internal winding resistance;
The oil drain in the cooling machine and equipment is forced circulation, at least in the main winding resistance, it is forced to correctly guide the circulation; What is the wiring level of the transformer.
The third English letter: external cooling material.
The fourth English letter: circulation mode of externally cooled substances. The cooling mode of transformer is named.
Natural heat convection; Transformer cooling equipment.
Forced circulation (cooling fan, pump, etc.).
What are the common ways of transformer cooling? The cooling methods of transformers are different.
The common cooling methods of power engineering transformers are generally divided into oil immersed self cooling, oil immersed air cooler and forced oil circulation.
Oil immersed self cooling type: it is the natural heat convection of oil to generate heat to the tank and heat dissipation pipe. The calorific value is then transmitted by the heat convection of the gas, which has no unique cooling machinery and equipment.
Oil immersed air cooler: it is an oil immersed basically self cooling type. A centrifugal fan is installed in the tank or on the heat dissipation pipe, and an electric hair dryer is selected to boost cooling. Add air-cooled after. The transformer volume can be increased by 30% ~ 35%.
Forced oil circulation cooling mode is divided into strong oil air cooling type and strong water oil cooling type. It is the oil in the transformer. Pump the oil cooler and return to the automobile oil tank. The oil cooler is made into a unique shape conducive to heat removal, and the centrifugal fan is selected for purging or circulating water cooling material to bring heat.
What is the cooling mode of transformer?
The common cooling methods of transformer are: scb11 transformer.
1. Oil seeping into onan;.
2. Oil immersed cooling (ONAF);
3. Forced oil circulation (gas cooling); Several ways of transformer temperature reduction.
4. Forced oil circulating water cooling);
5. Forced correct guidance of crude oil circulation (gas cooling);
