Promotion of cement box transformer in rural power grid

Promotion of cement box transformer in rural power grid

1. Overall station layout of cement box transformer shell

In the initial stage of the design of the cement box transformer casing, it was considered to be manned, so the design is relatively spacious and bright, which can meet the living and living needs of the duty personnel, or achieve complete unmanned operation. The design specifications are designed according to the design drawings and installation environment, measured in square meters. The land occupation is nearly 40% less than that of conventional substations, which greatly saves land and funds. There are spacious transportation channels around the shell, which can facilitate equipment transportation and vehicle lifting.

2. Basic design of cement box transformer shell

In the design of the box transformer housing, the basic design of the box transformer is an important component. It not only plays a role in carrying the box transformer housing, but also can be used as a cable trench and cable chamber for the high-voltage cables in and out of the box transformer, facilitating cable threading, cable inspection, monitoring, and maintenance.

At the same time, due to the fully enclosed structure of the cement box transformer casing, cable entry and exit forms are often used. The 35KV and 10KV incoming and outgoing lines below the load switch are all YJV type single core cables that pass through flame-retardant carbon corrugated pipes for ground radiation, which is easy to replace and has a lower cost

3. Operation and Maintenance of Cement Box Transformer Shell

The casing of the cement box transformer comprehensively considers lighting, accident lighting, ventilation, sand prevention, heat dissipation, and insulation measures. It is equipped with fire prevention, smoke alarm devices, and infrared video devices. The switchgear inside the box meets the requirements of "full insulation, full isolation, full closure, and full working conditions". A heater is installed in each unit cabinet, controlled by an automatic temperature and humidity control instrument, which can simulate temperature, humidity, measurement display marks, and install condensers and smoke alarm devices, And connect the humidity and smoke alarm probe signals to the comprehensive automation system, and the switchgear is equipped with a live display device. Therefore, the casing of the cement box transformer is easy to operate and stable, with minimal maintenance work and little need for daily maintenance.

In summary, the promotion of cement box transformer shells in rural power grids is discussed from three aspects: overall station layout, foundation design, and operation and maintenance. No matter how convenient it is, the cement box transformer shell is suitable for the structural requirements of rural power grids, and conforms to the actual situation and typical design requirements of rural power grids. It is worth promoting and will be widely promoted as a station building model

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http://www.switchgear-china.com/box-type-compact-substation/prefabricated-substation/box-type-prefabricated-substation.html

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