The introduction of American box-type substation
The upgrading of technical products cannot be accompanied by the progress of science and technology, so the progress of science and technology also depends on the technical requirements of production development. we want to choose the most suitable American box substation is a very important task. But before choosing, it is necessary for us to understand the basic situation of the American box-type substation, so as to choose the most satisfactory and suitable products.
What is an American box substation?
The box-type substation box can be divided into two types: with operation corridor (the staff operate inside the box) and without operation corridor (the staff operate outside the box). A box-type substation can be an integral box shell or a sub-type box shell composed of two, three or more boxes. The box body should have sufficient mechanical strength and should not be deformed during transportation and installation. Should strive to beautiful appearance, color and environment coordination. The high and low pressure chamber of the box shell should be equipped with lighting, dust and condensation prevention measures should be taken, the humidity of the high and low pressure chamber should not exceed 90% (25℃), and the transformer room should be well ventilated. The box shell should be protected from sun, rain, rust, small animal entry measures or devices.
What are the characteristics of box substations in the United States?
1,Overload capacity is strong, allowing overload 2 times 2 hours, overload 1.6 times 7 hours without affecting the variable life of the box.
2,The use of elbow type connector, can be very convenient to connect the high voltage line cable, and can be used in emergency as a load switch, can be plugged.
3,The use of double fuse protection, insert fuse (Bay-O-net) for the double sensitive fuse (temperature, current) to protect the box transformer secondary side of the short circuit fault. The backup Current limiting protection fuse (ELSP) is used to protect the high voltage side from faults occurring inside the protection box.
4,Transformers generally use high ignition point oil (FR3).
5,High voltage load switch protection with fuse and other components are transformer core, winding in the same tank.
What are the application places of American box-type substation?
An American box substation is a compact distribution unit that combines high voltage electrical equipment, transformers and low voltage electrical equipment. It is suitable for urban high-rise buildings, urban and rural buildings, residential areas, high-tech development zones, small and medium-sized factories, mines and other temporary buildings to use electricity, for distribution system acceptance and power injection.
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