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Anonymous users2024-02-06Hello, transformer classification is classified by cooling method: dry-type (self-cooling) transformer, oil-immersed (self-cooling) transformer, fluoride (evaporative cooling) transformer. Classified by moisture-proof method:
Open transformers, potted transformers, sealed transformers. Classified according to the structure of iron core or coil: core transformer (insert core, C-type core, ferrite core), shell transformer (insert core, C-core, ferrite core), ring transformer, metal foil transformer.
Classified by the number of power phases: single-phase transformer, three-phase transformer, multi-phase transformer. Classification by use:
Power transformer, voltage regulating transformer, audio transformer, intermediate frequency transformer, high frequency transformer, pulse transformer, I hope mine can help you, thank you.
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Anonymous users2024-02-05It can be divided into the following categories.
According to the use, there are: step-up transformer, step-down transformer.
According to the number of phases, there are: single-phase transformer, three-phase transformer.
According to the number of windings, there are: single-winding transformer (autotransformer with two-stage voltage), double-winding transformer, and three-winding transformer.
According to the winding material, it is divided into: copper wire transformer and aluminum wire transformer.
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Anonymous users2024-02-041.According to the use: (1) power transformer, (2) special transformer, (3) instrument transformer, (4) test transformer. According to the number of phases:
2.According to the number of phases: (1) single-phase transformer, (2) three-phase transformer, (3) multi-phase transformer.
3.According to the winding form: (1) double winding transformer, (2) three-winding transformer, (3) multi-winding transformer, (4) autotransformer.
4.According to the cooling method: (1) dry-type transformer, (2) oil-immersed transformer.
5.According to the form of iron core: (1) core transformer, (2) shell transformer.
These are the general classifications of transformers.
Henan Senyuan Electric Co., Ltd., a listed company on the main board, 002358, a professional transformer manufacturer, produces transformers with a capacity of 30 10000kva, and transformers are equipped in the power network of the State Grid, China Southern Power Grid and other parts of the country.
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Anonymous users2024-02-03(1) Classification by use. Transformers can be divided into power transformers and special transformers according to their uses.
Power transformer is the main equipment for transmission and distribution in the power system, with a capacity ranging from tens of kilovolt amperes to millions of kilovolt amperes, and voltages ranging from hundreds of volts to millions of volts. Power transformers can be divided into step-up transformers, step-down transformers, distribution transformers, contact transformers (used to connect several power grids with different voltage levels) and factory transformers.
Special transformers include converter (rectifier, commutation) transformers, electric furnace transformers, mining transformers, traction transformers and high-voltage test transformers.
2) Classified by the number of windings. Transformers can be divided into single-winding (autotransformer) transformers, double-winding transformers, three-winding transformers and multi-winding transformers according to the number of windings.
3) Classification by the number of phases. Transformers can be divided into single-phase transformers, three-phase transformers and multi-phase transformers according to the number of phases.
4) Classified according to the core structure. Transformers can be divided into heart transformers and shell transformers according to the core structure.
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Anonymous users2024-02-021. According to the number of phases.
1. Single-phase transformer: used for single-phase load and three-phase transformer set.
2. Three-phase transformer: used for the voltage rise and fall of the three-phase system.
Second, according to the cooling method.
1. Dry-type transformer: relying on air convection for natural cooling or increasing fan cooling, mostly used in high-rise buildings, high-speed toll stations and local lighting, electronic circuits and other small-capacity transformers.
2. Oil-immersed transformer: relying on oil as cooling medium, such as oil-immersed self-cooling, oil-immersed air cooling, oil-immersed water cooling, forced oil circulation, etc.
3. According to the use.
1. Power transformer: used for the rise and fall voltage of the transmission and distribution system.
2. Instrument transformers: such as voltage transformers, current transformers, measuring instruments and relay protection devices.
3. Test transformer: it can generate high voltage and carry out high voltage test on electrical equipment.
4. Special transformers: such as electric furnace transformers, rectifier transformers, adjustment transformers, capacitive transformers, phase-shifting transformers, etc.
Fourth, according to the form of winding.
1. Double-winding transformer: used to connect two voltage levels in the power system.
2. Three-winding transformer: generally used in the regional substation of the power system, connecting three voltage levels.
3. Autotransformer: used to connect power systems with different voltages. It can also be used as an ordinary step-up or step-down transformer.
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Anonymous users2024-02-011. According to the number of phases: single-phase transformers are used for single-phase loads and three-phase transformer sets. Three-phase transformers are used to rise and fall voltages in three-phase systems.
2. According to the cooling method: dry-type transformers rely on air convection for natural cooling or increase fan cooling, and are mostly used for high-rise buildings, high-speed toll stations, local lighting, electronic circuits and other small-capacity transformers. Oil-immersed transformers rely on oil as the cooling medium, such as oil-immersed self-cooling, oil-immersed air cooling, oil-immersed water cooling, forced oil circulation, etc.
3. According to the use: the power transformer is used for the rise and fall voltage of the transmission and distribution system. Instrument transformers, such as voltage transformers, current transformers, measuring instruments and protective relay devices.
The test transformer can generate high voltage and perform high voltage tests on electrical equipment. Special transformers, such as electric furnace transformers, rectifier transformers, adjustment transformers, capacitive transformers, phase-shifting transformers, etc.
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Anonymous users2024-01-31There are many types of transformers, and the most common form of classification is to focus on the operating frequency and use.
The working frequency of R-type electronic transformers can be divided into 5 types:
1. Power frequency transformer: the frequency is 50Hz or 60Hz2, the frequency transformer: the frequency is 400Hz or 1KHz3, and the audio transformer:
The frequency is 20Hz or 20KHZ4, ultra-audio transformer: the frequency is more than 20KHz, but generally not more than 100KH5, and the frequency is usually more than 100KHz.
The main uses of R-type electronic transformers are:
1. Power transformer: a transformer that is usually used for the power supply required by electronic equipment.
2. Audio transformer: generally used in the transformer of audio equipment.
3. Pulse transformer: Lee's transformer working in pulse circuit.
4. Special transformers: transformers with special functions, such as: voltage stabilizer transformers, ultra-isolated transformers, transmission line transformers, magnetic flux leakage transformers.
5. Switching power supply transformer: the stool file is used for the transformer in the switching power supply circuit.
6. Communication transformer: used for direct isolation and filtering in the communication network.
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Anonymous users2024-01-30The transformer uses the principle of electromagnetic induction to change the alternating current voltage, and the main components of the hand and limb are the primary coil, the secondary coil and the core (magnetic core). In electrical equipment and wireless circuits, it is often used for voltage lifting, impedance matching, safety isolation, etc. The main functions of the transformer are:
voltage conversion; Current conversion, impedance conversion; Isolation; voltage regulation (magnetic saturation transformer); autotransformers; High-voltage transformers (dry-type and oil-immersed), etc., the commonly used core shapes of transformers generally include E type and C type core, XED type, ED type CD type. The classification of common transformers can be summarized as follows:
1. By link:
1) Single-phase electric transformer: used for single-phase electric load and three-phase transformer group. Three transformations of idealized transformers.
2) Three-phase transformer: used to work on the left and right of the three-phase system software.
Calculated according to the formula of refrigeration:transformer ratio.
1) Dry-type variable ascending world pressure device: with the help of air convection to carry out natural refrigeration or lift centrifugal fan cooling, mostly used in multi-storey buildings, high-speed toll stations and some lighting fixtures, electronic circuits and other small volume transformers.
Oil-transformer: oil is used as the refrigerant substance, such as oil immersion over-temperature protection, oil-transformer air-cooled, oil-transformer water-cooled heat dissipation, mandatory oil circulation system, etc. Transformer impedance conversion.
3. Application:. 1) Power engineering transformer: used to:
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