Box-type substation (Substation for short) is a kind of high-voltage switchgear, distribution transformer and low-voltage power distribution equipment, which is aligned into the integrated factory prefabricated indoor and outdoor compact power distribution equipment according to a certain wiring scheme, that is , combining such functions as high voltage receiving power, reduced voltage of transformer and low-voltage power distribution etc. together, which can be installed in a damp-proof, rust-proof, dustproof, rat-proof, fireproof, anti-theft, heat insulation, fully enclosed and movable steel structure tank, with mechanical-electrical integration and the fully enclosed operation, especially for urban network construction and transformation, it is a new kind of substation after the rise of a civil substation. Box-type substation is suitable for mines, factories and enterprises, oil and gas fields and wind power stations. Box-type substation, also known as outdoor complete substation, also called as combined-type substation, it is developed from the1960s to 1970s and it’s a new type of substation equipment of outdoor complete substation launched by Europe and the United States and other Western developed countries. As it has the advantages of flexible to assemble, easy to transport and migrate, easy to install, short construction period, low running cost, no pollution, maintenance-free and so on, which are valued by electric power workers all over the world. Until the mid 1970s, the simple box-type substation began to appear in China and has developed rapidly.

Advanced Technology, Safe and Reliable
Box body using the current domestic leading technology and process, box case is usually made by  steel plank plated with zinc and aluminum, the framework adopts the standard container materials and production process, with good anti-corrosion properties, ensuring that it will not be rusty for 20 years. The internal closure plates are made by aluminium alloy gusset plates, the interlayer with the use of fireproof and thermal insulation material, air conditioner and dehumidifier are installed in the box, the equipment operation is not affected by the natural weather environment and external pollution, you can be assured that the equipment can work normally under -40 ℃ ~ +40 ℃ bad conditions. The primary equipment in the box is equipped with the domestic leading technical facilities, such as fully enclosed high-voltage switch cabinet (for example: xgn type), dry-type transformer, dry-type mutual inductor, vacuum circuit breaker, spring operating mechanism, rotating disconnector etc. The products have no exposed current-carrying part in air and are made of fully enclosed, fully insulated structure, which can entirely reach zero electric shock accident, the non-oil operation can be achieved within the full station, with high security. The second equipment adopts microcomputer integrated automation system and can realize the unattended operation.

Domestic and Overseas Box-type Substation
1.Domestic Box-type Substation
Compared to American box-type substation, the domestic box-type substation increases the grounding switch and lightning arresters. The mechanical interlock is installed between the grounding switch and the main switch, which can guarantee the absolute safety of the repair personnel when conducting the maintenance to the box type substation. One fuse is used in each phase of the domestic box-type substation and replaces two fuses of American box-type substation for protection. The main characteristic is that, when the fuse from any phase is melted, it will ensure the load switch tripping and cut off the power, and only after this fuse is replaced, the main switch can be closed, for which, the American box-type substation does not have. China-made box-type substation are generally independent structure for each unit, with transformer room, high-voltage switch room, low-voltage switch room set up respectively, which are connected into a complete power supply system by the wires.
2.American Box - type Substation
Our company has absorbed the advanced technology from abroad and developed American-style transformer substation series. The high-tech intelligent control technology is applied in our products. Transformer, load switch and high-voltage melting tube are installed in the transformer box, which subtly uses the insulation of transformer as the insulating medium and heat dissipation medium of the whole product. It has the characteristics of small size, light weight, easy installation and maintenance, high security and reliability, beautiful appearance and so on.
3.European Box Type Substation
Prefabricated substation (is also known as combined transformer substation, box-type substation or European type box substation) is made up of high-voltage and low-voltage switch equipment, transformers and housing components, it’s one kind of moveable power transformation and distribution complete equipment that pre-assembled by the factory.
Prefabricated substation can be used for outdoor or indoor, It is widely used in such occasions as the industrial parks, residential areas, commercial centers, public places, airports, docks, subways, hotels, schools, hospitals, and mobile construction sites , Mines, oil fields etc.


Main Technical Parameters of Box Type Substation
Type Name General Type ZBW or XWB Compact Type ZB1-36 Compact GE, COOPER Compact GE, COOPER
10KV inlet wire device SM6 type, FN5 type, etc. HXGN6-10 type SF6 ring network switch Four-position switch Four-position switch
Transformer Model S9-500 type or others S9-500 SH（GE）-500 COOPER-500 （Equivalent to S7）
Related Voltage（KV） 10/0.4 10/0.4 10/0.4 10/0.4
Tapping Voltage ±2×2.5% +3×2.5% -1×2.5% ±2×2.5%
Connection Group Y，yn D，yn11 D，yn11 D，yn11
High-voltage Current （A） High voltage 28.9 or others 28.9 28.9 28.9
Impedance Voltage (%) 4% or others 4% 4% 4%
No-load Loss（W） 960 960 270 Equivalent to S7
Load Loss（W） 5100 5100 5100 Equivalent to S7
Low-voltage Distribution Circuit 4~6 loop 3~4 loop Standard 1 loop

Baoding Zhongyi Electrical Material Manufacturing Co., Ltd. is a professional power transformers manufacturer, the company possesses the professional production equipments, hoisting, tooling & testing equipments and has established the perfect quality management system. All performance indicators of our products have reached the standard.

The company’s main products: power distribution transformers, dry-type transformers, box-type transformers, power transformers, complete sets of switchgears and so on. Our company adheres to the enterprise purposes of "the details decide the success or failure, the good faith forges the future", abides by the business philosophy of "taking the market with quality, seeking development with innovation and management for benefit", making our products widely used for different industries, such as power plants, chemical industry, construction, mining, metallurgy, rail transportation etc., so as to meet the needs of various users. Our company won the trust of our customers by the excellent quality products, thoughtful and meticulous service.

Website: http://www.sz-fortune.cn/
Manager Peng: 15303120271,
Tel: 0312-5938898,
Address: Yucheng Industrial Zone, Qingyuan District, Baoding City, Hebei Province