Prefab cabin
Prefabricated smart substation, also known as prefabricated cabin
In order to further deepen the technology of smart substations, unify construction standards, and improve the quality, safety and efficiency of project construction, the State Grid Corporation of China launched the construction of standard distribution smart substations, and proposed the technical principles of “standardized design, factory processing and mechanized construction, and assembly-type construction”. This is an important measure for the construction of a "higher-level power grid" and is the deepening of standardization. This not only can effectively shorten the construction period, improve the quality of the project, and reduce the construction cycle cost, but also is more conducive to environmental protection, improve the efficiency of smart substations, and improve the ability of power grid construction. , So that the construction of substation will move towards the road of high technology content, low resource consumption, less environmental pollution, and refined construction.
The structure of the prefabricated cabin:
The internal space and structure of the prefabricated cabin. The cabin body is composed of secondary equipment, air conditioning, lighting, fire protection, security, imaging and other equipment. At the same time, it also needs to meet the working requirements of equipment operation and maintenance personnel. The interior of the cabin needs to be overhauled. The decoration materials are fireproof and waterproof materials. Insulation materials can be added between the decoration materials and the bulkhead to block sunlight to ensure the insulation function of the cabinet. The lighting and air conditioning in the cabin can be implemented in different ways according to the needs. In order to effectively save, Industrial air-conditioning and exhaust systems are installed in the cabin, which can adjust the operating environment in the cabin in real time; as currently unattended methods are adopted, the cabin must also be equipped with security, image, image monitoring, and fire alarm* systems; the wiring arrangement can be based on The equipment is properly arranged for normal operation.
Prefabricated cabin type GIS combined electrical appliances and prefabricated cabin type substation. The prefabricated cabin-type GIS combination electrical appliance includes a prefabricated cabinet, an inlet and outlet interval, and a segmented test and protection interval. The inlet and outlet interval includes the inlet interval and the main transformer interval; the inlet interval includes the inlet cable terminal and the isolating switch 1. Isolating switch
Transformer one and circuit breaker one; the main transformer bay includes outlet cable terminal and isolating switch three; the section measurement and protection interval includes one bus tie section interval and two measurement and protection intervals, and the bus tie section interval includes circuit breaker II and mutual inductance Two sets of isolation switches and four isolation switches, the measurement and protection interval includes transformer 3 and isolation switch 5 that are connected together; there is a segmented measurement and protection interval between the two adjacent groups of incoming and outgoing lines, the interval of incoming and outgoing lines, and the segmented test and protection interval. The interval and the bus bar form a linear structure, and the interval between incoming and outgoing lines, the interval between subsections and the bus bar are located in the prefabricated box. The prefabricated secondary combined equipment cabin is composed of cabin body, secondary equipment, air conditioning, lighting, fire protection, security, image and other equipment. All equipment in the cabin is connected and debugged in the factory, and is regarded as a whole or 2 ~3 single units were transported to the site.
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