| Prod Model: |
DBW1A-12 Light Box-type |
| Markets: |
North America,South America,Eastern Europe,Southeast Asia,Africa,Oceania,Mid East,Eastern Asia,Western Europe |
| Features: |
High Reliability |
| Features2: |
Can Be Used for Advertising |
| Display: |
LED Display |
| Type: |
Distribution Metering Box |
| Structure: |
Fixed Board |
Product Description
1.DBW1A family buried substation is the latest research and development, to fill the gaps for the construction of a new city power grids box-type substation.
2.DBW1A series Buried (box) 6 ~ 10kV substation as a communication network, rated frequency 50Hz, rated capacity of 50 ~ 630KVA transformer substation devices independent sets for urban high-rise buildings, residential quarters, factories, mines, hotels, parks, railway and temporary facilities, indoor and outside spaces; can save a lot of urban land, especially the small size of the low height of the ground segment, do not block the view and affect the landscape, ideal for placing on the sidewalk or street.
Rated voltage: HV: 6/10kV, LV: 0.4kV Capacity range: 30, 50, 63, 80, 100, 125, 160, 200, 250, 315, 400, 500, 630, 800, 1000, 1250, 1600, 2000kVA Frequency: 50Hz Phase: single-phase and 3-phase Vector group: Dyn11, Yyn0 Impedance voltage: according to national standards Operation environment: in the basement or the cellar Loss: reaching national standard S11 series parameters Enclosure protection level: IP68 Noise level:≤ 55dB
Waterproof consideration for basic design and fabrication
Top: ventilation holes have effective rain-proof and water-proof capabilities;Side: carry out surface treatment for sides by waterproof concrete materials so that water can not penetrate from sides;Bottom: install waterproof concrete bearing base for buried transformer that is 300mm higher than the pit bottom. At usual time, water flowing from the ground into the pit will enter the ring channel under the base so that it will not immerse the buried transformer. Lay sandy cobble at the bottom of the base so that water can penetrate into the ground more quickly. Buried type transformer can also operate when immersing in water for more than 0.5m for a certain period of time. It can withstand floods and can effectively improve the reliability of the power supply system. However, in order to ensure the safe and reliable operation of the transformer, it is suggested to check the water accumulation situation in the pit after floods and long time heavy rainfall and the rainy season. If there is too much water, pumping and cleaning should be carried out.
Buried type transformer - temperature rise control measures
The buried type transformer temperature rise control measures can be ensured by the following four ways:Transformer low temperature rise design, control the oil temperature at around 45K, far lower than the international regulated 60K;
| No. | Item | Unit | Parameters |
| 1 | Rated voltage | kV | 12 |
| 2 | Rated frequency | Hz | 50 |
| 3 | Rated current of load switch | A | 630 |
| 4 | Main circuit thermal current | kA | 20 |
| 5 | Main circuit dynamic current | kA | 50 |
| 6 | Rated making current of main circuit | kA | 50 |
| 7 | Rated active load breaking current | | 630 |
| 8 | Rated ring closed breaking current | A | 630 |
| 9 | 5% of rated active load breaking current | A | 31.5 |
| 10 | Rated breaking current of cable charging | A | 10 |
| 11 | Rated no-load breaking current of transformer | A | 1600KVAq |
| 12 | Rated breaking current of fuse | kA | 31.5 |
| 13 | Rated transfer current | A | 1500 |
| 14 | Mechanical duration | times | 10000 |
| 15 | 1min power frequency withstand voltage to earth/between phases/disconnecting fracture | kV | 42/48 |
| 16 | Lightning impulse withstand voltage to earth/between phases/disconnecting fracture | kV | 75/85 |
| 17 | Rated pressure of SF6 (20ºCsurface pressure) | Mpa | 0.045 |
| 18 | Annual leakage rate of SF6 | | ≤0.2% |
Ningbo Ville Electric Co., Ltd. One of wholly owned subsidiaries of VILLE INDUSTRY, It was invested by VILLE INDUSTRY, It is a well-know listed company in China specialized in R&D of electric power technology, equipment manufacturing and engineering services specialized in research, development, production of transformer and high voltage & low voltage electrical power equipment
Our Transmission and distribution companies can provide with whole solution for transformer substation and switch substation trunkey project!
The rated voltage from 11kV up to 132kV.
It locates in Hi-technical enterprise R & D center zone of Ningbo, Zhejiang province, which is one of the well-know coastal city in China. Its professional engaged in power substation, power plant project and electrical power complete equipments.
Working field: Manufacturing, engineering, designing, executing and commissioning for HV and LV electrical products. Turnkey substation from 11KV to 132KV.
Our transformer factory main working is visiting end user's site do measure and reseach before designe, and providing economic transformer solution for customer. Engineering, manufacturing, executing, commissioning and repairing for different kind of transformer (04kv -500kv ).
The products are mainly used in Steel plant; Power - Fossil fuel plant, Nuclear power plant, Railway, Subway and Airport. Wind power generation; Hydroelectric plant engineering; International power generation plant; Power substation transmission and distribution; Residential housing estate power distribution system and so on.
Transformer factory Product includes:
Three phase double (three)- winding power transformer, generator power transformer, auto power transformer, rectifier transformer for each industry, furnace transformer, movable transformer, traction transformer and reactor, power plant auxiliary and standby transformers, transformers for substations of backbone and distribution networks. Transformer for metallurgical companies etc.
In order to achieve the enterprise's strategic target---being stronger, larger, and superior, we continue to expand throughout the world's markets for power transmission and distribution area. And we also actively attach our team to competition, walking forward to the mission of "First-class worldwide transformer supplier"
Supply the guide drawings and installation manuals information directions on the method of handling, storage, mounting and erection of transformers.
Power equipment application:
Power-fossil fuel plant, Steel plant, Infrastructure- railway, international generation, substation, hydropower station, wind power substation, transmission and distribution.
We has excellent experience and good capacity in complete projects equipments in Generation, Substation, Transmission and Distribution from 400V-330kv, especially in Power plant, Substation construction and Transmission line, including of design, complete equipment, installation, Commissioningand after-sales service, and also design the complete Electrical Solutions according to customer's demand. We are mainly services to International State Power Board, Power Construction Contractor, Power Project Contractor, Factories and the Electric Power Project in the world.
In order to achieve the enterprise's strategic target---being stronger, larger, and superior, we continue to expand throughout the world's markets for power transmission and distribution area. And we also actively attach our team to competition, walking forward to the mission of "First-class worldwide electrical equipment supplier
