How many advantages does American box-type transformer have? Henan diteli tells you
Release time:
2024-01-19
Source:
American box transformer is a kind of product widely used in power distribution system, it is different from many European box transformer, it is not a simple combination of transformer and high and low voltage switchgear, but a new type of integrated electrical equipment developed on the basis of transformer.
It is characterized in that the structure of the high-voltage side load switch and the ring network switch is comprehensively simplified and immersed in the same oil tank as the transformer, so the volume is greatly reduced and the cost is correspondingly reduced. Another feature is the use of double fuse protection, and its fuse has the characteristics of current and temperature sensitivity, which greatly improves the protection sensitivity and reliability. At the same time, the fully enclosed and fully insulated properties of the American box transformer make installation quick and easy and can be long-term maintenance-free. Therefore, since the 1980 s, it has been widely used in distribution systems in Europe and the United States, especially in the United States, where this American box-type substation has accounted for 80-90% of distribution transformers. In the early 1990 s, the American box transformer represented by COOPER company began to be introduced into China. In recent years, it has developed rapidly. At present, more than thousands of box transformers serve the domestic power distribution system, and are widely used in industrial parks, residential areas, commercial centers, high-rise buildings and other places.
-Fully sealed, fully insulated structure, no insulation distance, small size, compact structure
-Can be used for ring network and terminal
-Strong overload capacity, allowing overload 2 times 2 hours, overload 1.6 times 7 hours, without affecting the life of the box transformer
-Double fuse protection, reducing operating costs, plug-in fuse is double-sensitive fuse (temperature, current)
-The box adopts anti-corrosion design and special painting treatment, which can be widely used in various harsh environments, such as multi-storm and high-pollution areas
-The cable connector can cut off 200A load current, can be operated as a load switch in an emergency, and has the characteristics of an isolating switch, simple and flexible operation
-Three-phase five-column structure, high voltage quality, neutral point does not drift, box does not heat, low noise, good lightning protection performance
-High ignition point oil FR3 is selected, the ignition point is as high as 360 ℃, which can be placed in buildings to eliminate fire hazards, and the transformer can be overloaded by 14% for a long time. At the same time, the service life of the transformer can be increased by 8 times.
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