50KVA 100KVA 150KVA 200KVA 250KVA 300KVA 400KVA 450KVA 500KVA 20MKV Oil Immersed Electrical Power Distribution Transformer
Oil immersed transformer
1.Power Capacity: 50KVA-20MVA
2.Voltage Level: 6KV ,10KV,11KV, 15KV,17.5KV ,20KV,22KV ,24KV ,30KV,33KV 35KV 36KV and Others
3.Type of Voltage Regulation: Off-circuit or On-Ioad
4.Tapping Range: ±5 % ±2x2.5 % ±4x2.5 %
5.Frequency: 50Hz or 60Hz
6.Phases: Three or single
7.Connection Symbol: Dyn11,Yyn0 ( or as requested)
8.Short- circuit Impedance: Standard Impedance
9.Altiude is not exceeding 1000m,ambient temperature not exceeding 40OC. If it can't meet such conditions,we will modulate
parameters in accordance with standard.
High-quality and consistent product output
In order to achieve high-efficiency production control, we have our own production facility and strictly adhere to procedures like screening and auditing of raw material suppliers, testing of incoming materials,and comparison of incoming materials.
Additionally , each batch of products is inspected and quality-controlled in strict accordance with the supplier's indicators .
Prompt and kind extended services.
We have always upheld the principle of seamless service, and we have carefully assembled a group of technical experts for our after-sales service staff.
In order to ensure timely delivery of products, reduce losses, and strive to provide after-sales service more quickly and kindly , we implement round-the-clock tracking services, communicate with and provide feedback to customers, assist customers in solving problems, establish a customer file system, and actively assist in resolving user difficulties.
Multiple specifications
Welcome to customize according to your needs
Transformers are used in the construction and renovation of rural power facilities. Tianjin hode Electric Co., Ltd. has deployed transformers and upgraded transmission and transformation lines in countries such as Kenya, Ethiopia, and Chad through high-quality products and after-sales service
Taking the 10 kV voltage level delayed power grid investment and construction project in Kazakhstan as an example, when a city's power line needs to be strengthened due to short-term load overload caused by daily peak hours, assuming that the duration of the daily line load exceeding 1.2 MW is 1 hour, the maximum daily load is 1.4 MW, exceeding the transmission capacity of the line by 0.2 MW, energy storage equipment is preferred as a backup power source.
Line renovation plan: Currently, the peak load of 0.2 MW needs to be solved. Based on the expansion of one 2 km 10 kV cable and two distribution transformers, the annual operation and maintenance cost of the distribution network is considered at 1% of the initial investment. The static investment for project construction is about 320000USD
Traditional 110kV, 275kV, and 400kV substations are mainly designed and installed outdoors, occupying a large area, and the equipment is prone to corrosion, especially in high pollution areas, which can easily cause pollution flashover accidents.
Compared with ordinary substations (European transformer substation) with the same function, this substation with double-layer and double transformers structure has a 41% reduction in floor area and a 42% reduction in land resource occupation. The product is small in size and light in weight. The installation and transportation costs are reduced by 50%.
In order to build a strong power grid, leverage scale advantages, improve resource utilization, and enhance the efficiency of power grid engineering construction, State Grid Corporation of China, in conjunction with HODE, TBEA, CHINT and SIEMENS companies, proposed in 2025 that "promoting standardized construction of power grids at all levels of power grid engineering construction should unify technical standards, promote the application of typical optimized designs, save investment, and improve efficiency".
Tianjin hode Electric Co., Ltd. undertakes the upgrade and renovation project of electric furnace transformers. The three electric stone furnaces at the SEVEN chemical plant in the Philippines have changed the capacity of one transformer from 10MVA to 16.5MVA, and the daily output has increased from 60t to over 100t. Comparing his steelmaking electric arc furnace with a nominal capacity of 10 tons and an actual loading capacity of over 20 tons, the melting period is 110-120 minutes when the transformer capacity is 5MVA, and 55-60 minutes when the transformer capacity is 9MVA.
The XUXE factory in Kyrgyzstan tested a 4MVA transformer on a 1.5t steelmaking electric arc furnace, achieving the goal of refining one furnace of steel in 1 hour. However, other processes could not keep up and the labor intensity of workers was too high. Therefore, a 1.2MVA transformer was still used, and an additional furnace of steel was refined in 2 hours.
The project undertaken by Tianjin hode Electric Co., Ltd. includes the integration of a new wind and solar system with a set of converter and boost systems, including 1250kW PCS and supporting transformers. The complete equipment has external communication functions, including RS485, TCP/IP Ethernet, and dry contact interfaces. The high-voltage output voltage is 10kV. The PCS system adopts intelligent forced air cooling for heat dissipation, allowing long-term operation under 110% overload at an ambient temperature of 45 ºC and reduced rated operation at an ambient temperature of 50 ºC. In addition to the control function of switching normal loads, the incoming and outgoing lines should also have basic protection functions for abnormal tripping such as overcurrent and overload.
The new photovoltaic energy storage PCS boost integrated machine has intelligent forced air cooling function and a wide temperature range of -30 ºC -60 ºC. It can operate at full load in an environment of 50 ºC; Adopting IP55 protection design, supporting high and low voltage ride through, it can easily cope with various complex application environments such as extreme temperature and high humidity.
| Rated Power |
Rated voltage |
Loss (Watt) |
on load current |
oil weight |
total weight |
Dimension(LxWxH) |
| H.V.Side |
L.V Side |
No load loss |
On load loss |
kgs |
kgs |
mm |
| 30 KVA |
3.3 KV 6.0 KV 6.3 KV 6.6KV 10KV 11KV 13.2KV 13.8 KV 15 KV , 20 KV , 22 KV , 24 KV , 30 KV , 33KV , 35 KV ,36 KV |
|
100 |
600 |
2.1 |
75 |
305 |
750 x 500 x 990 |
| 50 KVA |
130 |
870 |
2 |
80 |
405 |
800 x 480 x 1030 |
| 63 KVA |
150 |
1040 |
1.9 |
95 |
455 |
830 x 615 x 1060 |
| 100 KVA |
200 |
1500 |
1.8 |
120 |
530 |
890 x 645 x 1145 |
| 125 KVA |
240 |
1800 |
1.7 |
130 |
670 |
910 x 600 x 1185 |
| 160 KVA |
280 |
2200 |
1.6 |
140 |
810 |
910 x700 x 1280 |
| 200 KVA |
380V,400V , 415V,433V , 440V |
340 |
2600 |
1.5 |
160 |
890 |
1000x760 x 1240 |
| 250 KVA |
400 |
3050 |
1.4 |
175 |
1020 |
1285 x 730 x 1290 |
| 300 KVA |
450 |
3450 |
1.4 |
185 |
1170 |
1280 x 740 x 1385 |
| 315 KVA |
480 |
3650 |
1.4 |
185 |
1170 |
1280 x 740 x 1385 |
| 400 KVA |
570 |
4300 |
1.3 |
215 |
1410 |
1310 x 750 x1432 |
| 500 KVA |
680 |
5100 |
1.2 |
260 |
1645 |
1365 x 765 x 1540 |
| 630 KVA |
810 |
6200 |
1.1 |
310 |
2070 |
1485 x 815 x 1615 |
| 700 KVA |
900 |
6600 |
1.1 |
|
|
|
| 800 KVA |
980 |
7500 |
1 |
370 |
2445 |
1640 x 930 x 1590 |
| 1000 KVA |
1150 |
10300 |
1 |
425 |
2800 |
1860 x 1120x1630 |
| 1250 KVA |
1360 |
12000 |
0.9 |
480 |
3320 |
1860 x 1120 x 1830 |
| 1.6 MVA |
1640 |
14500 |
0.8 |
550 |
4175 |
1975 x 1175 x 1900 |
| 2.0 MVA |
|
|
|
|
|
|
| 2.5 MVA |
|
|
|
|
|
|
| 3.0 MVA |
|
|
|
|
|
|
| 3.5 MVA |
|
|
|
|
|
|
| 4.0 MVA |
|
|
|
|
|
|
| 4.5 MVA |
|
|
|
|
|
|
| 5.0 MVA |
|
|
|
|
|
|
1. Low loss, and significantly energy-saving.
2. The core laminations are made up from high-quality cold-rolled grain-oriented silicon steel sheets
3. Zigzag directed flow of oil are provided within the windings
4. The regulating winding is a separate winding which apart from the high voltage main winding
5. The windings of one phase are assembled into an integral phase block before placing into the core.
6. Core frames in the form of a flat plate are used for clamping the core.
7. Transformer tanks are fabricated with steel plates wide enough so that there are no weld joints on each surface.
8. Diaphragm membrane is provided within the conservator, preventing direct contact of oil with air, protecting the oil from aging
9. Reliably sealed, and fine machined for sealed surface.
10. Quality assurance rules are also observed for all insulating parts,and main components.
Tianjin HODE Intelligent Electric Co., Ltd. is a cross-regional and cross-industry electrical power transmission and transformation equipment manufacturing enterprise. Its products include high and low voltage power transmission and transformation equipment. The company has a registered capital of 5 million RMB and mainly produces complete sets of power equipment up to 35KV, box-type substations, cable branch boxes, transformers, high and low voltage switch cabinets, high and low voltage switch cabinet shells, and various electrical components. The company is located in Tianjin, China, and has a strong technical team composed of senior engineers and professional technicians.
Our company mainly produces: Oil immersed power transformers, dry-type transformers, packaged substation(prefabricated substation and pad-mounted transformer), high and low voltage switchgear assembly and a variety of special transformers. There are complete necessary production and testing equipments. Our company has passed the ISO9001-2008 international standard quality management system certification. All performance indicators of the products have reached the relevant national standards and international standards.
The factory strictly follows the shipping packing standards to ensure the safe arrival of goods at the destination, and usually uses wooden boxes for packaging. At the same time, according to customer needs, flexible packaging and transportation methods are adopted
1.Are you a direct manufacturer or a trading company?
We have a processing plant, and we also have our own international trade department. We produce and sell our own products.
2.What products can you provide?
We mainly produce 110K-220KV oil-immersed power transformers, 35KV series transformers, new energy-saving single-phase transformers, laminated core oil-immersed transformers series, three-dimensional triangular core transformer series, amorphous alloy core transformer series, non-encapsulated H-class dry-type transformer series, resin insulated.
dry-type transformer series, phase-shifting rectifier transformer, box-type transformer series (European-style box transformer),combined transformer series (American-style box transformer), wind power transformer, photovoltaic transformer, etc.
3.What are the main application areas of your products?
Our products are widely used in urban and rural power grids, as well as petrochemical, metallurgical, textile enterprises, mines, ports, residential areas, etc.
4.Can you make customized products?
Yes, we have a professional design department that can make customized products. We develop and produce products based on the drawings or samples provided by customers.
5.What is your company's production capacity?
Our company covers an area of 1,0000 square meters and has total assets of 500 million. It has CNC cross-cutting lines, Qiyuan slitting lines, fully automatic center column lines, fully automatic lamination units, horizontal winding machines, automatic winding machines, Automatic bending machines, lightning impact equipment, vertical winding machines, high and low voltage winding machines, modern drying equipment, foil winding machine, vacuum pouring tank, vacuum oiler, nitrogen-filled annealing furnace, epoxy vacuum pouring equipment, Welding robot group, capacitor tower,double-section high vacuum oil purification equipment, assembly rack, hydraulic device, intelligent laser cutting machine, CNC punch press, kerosene and gasoline drying equipment, modern laboratory, dust-free assembly room, full set of testing equipment,etc. 260 sets. The products form 22 series, more than 100 varieties, and more than 600 specifications, with strong supporting capabilities.
6.How does your company ensure product quality?
First of all, we will conduct corresponding inspections after each process. For completed products, we will conduct full inspections according to customer requirements and international standards; Then, we have complete testing equipment in the industry: fully automatic transformer comprehensive testing system, lightning surge equipment,high-voltage noise shielding room, oil dielectric loss and resistivity tester, modern laboratory, etc.
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