Cabinet substation, also known as box variable. Is a high-voltage switchgear, distribution transformers and low-voltage distribution devices, according to a certain wiring scheme arranged into one of the factory prefabricated indoor, outdoor compact power distribution equipment, that is, transformer step-down, low-voltage power distribution and other functions organically combined together in a moisture-proof, rust-proof, dust-proof, rodent-proof, fireproof, anti-theft, heat insulation, fully enclosed, movable steel box, especially suitable for the construction and transformation of the city network is a new type of substation that is the rise of the earth substation. It is a brand-new substation which rises after the civil substation.
The box-type substation is suitable for residential neighborhoods, urban public utilities, busy downtown, construction power supply, etc. Users can choose the box-type substation according to different conditions of use, load level. Box-type substation since its inception, the development is extremely rapid, in developed countries in Europe has accounted for 70% of the distribution transformer, the United States has accounted for 90%. The rapid development of China's urban modernization and construction, the continuous renewal and reconstruction of urban power distribution network, will be widely used.
Expanded Information:
1, technologically advanced, safe and reliable
Cabinet part of the current domestic leading technology and process, the shell is generally used zinc-aluminum-plated steel, the framework of the standard container materials and production process, good corrosion resistance, to ensure that the 20 years without rust and corrosion, the inner sealing plate is made of aluminum alloy buckled plate, the mezzanine layer of the use of fire-retardant thermal insulation materials, the box body installation of air-conditioning and Dehumidification device is installed in the box, the equipment operation is not affected by the natural climate environment and external pollution, and it can ensure normal operation under the harsh environment of -40℃～+40℃.
The primary equipment in the box adopts fully enclosed high-voltage switchgear (e.g. xgn type), dry-type transformer, dry-type transformer, vacuum circuit breaker, spring-operated mechanism, rotary isolation switch and other leading domestic technology equipment, no exposed charged parts, fully enclosed, fully insulated structure, fully able to achieve zero electrocution accidents, the whole station can realize oil-free operation, high security, the secondary use of computerized integrated automation system, which can realize unattended operation. The secondary integrated microcomputer automation system can realize unattended operation.
2, high degree of automation
The whole station intelligent design, the protection system adopts substation microcomputer integrated automation device, decentralized installation, can realize "four remote", that is, telemetry, telemeter, remote control, remote control, each unit has an independent function of operation, relay protection function is complete, can be set on the operating parameters of the remote control of humidity, temperature inside the box, and remote smoke alarm, to meet the requirements of unmanned duty. Alarm, to meet the requirements of unmanned duty; according to the need can also realize the image remote monitoring.
3, factory prefabrication
Design, as long as the designers according to the actual requirements of the substation, to make a main wiring diagram and the design of the equipment outside the box, you can choose the specifications and models of the box by the manufacturer, all the equipment in the factory at a time to install, debugging qualified to truly realize the construction of the substation factory, shorten the design and manufacturing cycle.
On-site installation only requires box positioning, cable contact between boxes, outgoing cable connection, protection value calibration, transmission test and other debugging work, the entire substation from installation to commissioning in about 5 to 8 days, greatly reducing the construction period.
Baidu Encyclopedia - Box-type Substation
Baidu Encyclopedia - Mobile Box-type Substation