What is a box-type transformer?
Time：2024-12-18 Auther：ZTelec-www.ztelectransformer.com
Box-type transformer is a kind of power equipment integrating traditional transformers and related equipment. It is a completely sealed toughened box structure with transformers, high-voltage voltage control equipment, low-voltage voltage control equipment and so on. A box-type transformer is a closed transformer and usually composed of an iron core, winding and housing. Its shell is made of insulating material or metal material and contains input windings and output windings. It realizes voltage transformation through electromagnetic induction law. Box-type transformers are usually equipped with cooling equipment such as radiators or fans to ensure stable operation in a variety of environments.
Specifically, the main structure of the box transformer includes:
Core: It is usually composed of laminated silicon steel sheets. It is used to generate a magnetic field and conduct magnetic induction.
Winding: It includes input winding and output winding, which achieves voltage conversion through mutual coupling.
Housing: It usually is enclosed in an insulating material or metal housing which protects the internal components and ensures safe operation.
Cooling system: Box-type transformers are usually equipped with cooling equipment such as radiators or fans to keep the transformer temperature within a safe range.
Characteristics of box-type transformers
Small size , small footprint , movable at any time according to demand , and convenient transportation and installation ;
Reasonable structure distribution , can be made into ” triangle ” and ” rectangular ” type according to demand ;
Each functional room is independent of each other , and maintenance and replacement of parts are convenient and fast ;
The shell is naturally ventilated , which can reduce the heat during operation ;
Can be used in various environments with high protection level.
Application field of box-type transformers
Box-type transformers are widely used in power systems, and their main applications include:
1. Power plant: Box-type transformer can be used in the generator transformer of the power plant to raise the low voltage output of the generator to the high voltage required by the transmission grid to achieve the transmission of electrical energy.
2. Substation: Box-type transformers can be used in substations to convert the high voltage brought by the transmission network into low voltage suitable for various electrical loads.
3. Industrial power: Box-type transformers can be used in various industrial power applications, such as welding machines, lighting equipment, motors, etc., to meet the power needs of industrial production.
4. Urban electricity: Box-type transformers can be used in urban power applications, such as subways, large shopping malls, hospitals, etc., to ensure the normal power consumption of the city.
Advantages of box-type transformers
Compact structure: Box shape, small footprint, suitable for all kinds of places installation.
Durability: Strong shell structure, anti-seismic, moisture-proof, dust-proof, adapt to a variety of harsh environment.
Safe and reliable: Good internal insulation, stable operation, provide safe power supply.
High efficiency and energy saving: Reasonable design, less loss, high efficiency, energy saving and environmental protection.
Maintenance
In order to ensure the normal operation and extend the service life of the box-type transformer, regular maintenance work is required:
Regular inspection: Check the box-type transformer regularly, including appearance inspection, wiring inspection, insulation resistance measurement, etc., to ensure that the equipment is in good condition.
Cleaning and maintenance: Regularly clean and maintain the box-type transformer, including cleaning the porcelain bushing and shell, checking whether the shell and gasket have cracks or discharge traces.
Fastening screws: Check and tighten screws on connecting parts such as lead terminals, pins, and ground screws to ensure reliable connection.
Heat dissipation check: Check whether the radiator and vent are unimpeded to ensure that the box-type transformer can dissipate heat normally.
Safety measures: In the maintenance process, strictly abide by the safety operation procedures, wear insulation shoes, insulation gloves and other protective equipment to ensure the safety of operators.
