Resin Cast Transformer: Good Thermal Stability for Indoor High Efficiency Use
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| Application: | Power, Electronic |
| Phase: | Three |
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Basic Info.
- Model NO.
- SCB10-RL-(30~5000kVA)/ 20kV 3Ddry type transformer
- Core
- Core-type Transformer
- Cooling Method
- Dry-type Transformer
- Winding Type
- Multi-winding Transformer
- Certification
- ISO9001
- Usage
- Power Transformer, Distribution Transformer
- Frequency Characteristics
- Power Frequency
- Shape of Core
- OD
- Used Place
- Indoor
- Efficiency
- High Efficiency
- Losses
- Low Losses
- Noise
- Low Noise
- Rated Capacity
- 30-2500kVA
- High Voltage
- 6, 6.3, 6.6, 10, 10.5, 11
- Transport Package
- Wooden Box
- Specification
- core: silicon steel
- Trademark
- Golden Triangle
- Origin
- China
- HS Code
- 8504210000
- Production Capacity
- 500000pieces/Year
Packaging & Delivery
- Package Size
- 750.00cm * 700.00cm * 780.00cm
- Package Gross Weight
- 450.000kg
Product Description
A dry-type transformer is a type of transformer that does not use liquid cooling agents. Unlike traditional oil-immersed transformers, dry-type transformers use air as the cooling medium, thus eliminating the safety hazards such as oil leakage and explosion. At the same time, dry-type transformers also have the advantages of simple structure and convenient maintenance, making them widely used in various industries. The main components of a dry-type transformer include the main wiring, high and low voltage windings, core, and insulating materials. The main wiring of a dry-type transformer is usually made of high-purity copper or aluminum, capable of withstanding high temperatures and high currents.It is widely used in local lighting, high-rise buildings, airports, docks, CNC mechanical equipment and other places. In simple terms, a dry-type transformer refers to a transformer whose core and windings are not impregnated with insulating oil.
Transformer normal service conditions
1.The height above the sea level is below 1000m;
2.Highest air temperature +40ºC;
3.Highest daily average air temperature+30ºC;
4.Highest annual average air temperature +20ºC;
5.Lowest outdoor air temperature -5ºC.
(defines in detail when transformer in special service conditions )
Type of cooling
The cooling methods are divided into natural air cooling (AN) and forced air cooling (AF). During natural air cooling, the transformer can operate continuously at the rated capacity for a long time. When using forced air cooling, the output capacity of the transformer can be increased by 50%. This method is suitable for intermittent overload operation or emergency accident overload operation; however, due to the significant increase in load loss and impedance voltage during overload, it is in an uneconomical operating state, so it should not be allowed to operate under long-term continuous overload conditions.
Structure type
The core is mainly composed of silicon steel sheets and the coils are epoxy resin cast. Insulating tubes are placed between the high and low voltage coils to enhance electrical insulation, and the coils are supported and constrained by pads. The fasteners for the components that are connected together have anti-loosening properties.
Construction performance:
1. Solid insulation encapsulated windings
2.Unencapsulated windings
The windings: Among the two windings, the one with higher voltage is the high-voltage winding, and the one with lower voltage is the low-voltage winding.
From the relative positions of the high and low voltage windings, high voltage can be divided into concentric type and overlapping type.
Concentric windings are simple and easy to manufacture, and this structure is adopted in all cases.
Due to the advantages of dry-type transformers, such as strong anti-short-circuit capability, low maintenance workload, high operating efficiency, small size, and low noise, they are often used in places with high requirements for fire prevention and explosion protection.
1. Safe, fireproof, pollution-free, and can be directly operated at the load center;
2. Adopting domestic advanced technology, with high mechanical strength, strong anti-short-circuit capability, small partial discharge, good thermal stability, high reliability, and long service life;
3. Low loss, low noise, significant energy-saving effect, and maintenance-free;
4. Good heat dissipation performance, strong overload capacity, and can increase capacity for forced air cooling;
5. Good moisture-proof performance, suitable for operation in high humidity and other harsh environments;
6. Dry-type transformers can be equipped with a complete temperature detection and protection system. Using an intelligent signal temperature control system, it can automatically detect and patrol display the working temperature of each phase winding, can automatically start and stop the fan, and has alarm and trip function settings;
7. Small size, light weight, less floor space occupation, and low installation cost.
Transformer Normal Service Conditions
Optimal operation is ensured with installation at altitudes not exceeding 1000 meters above sea level;Capable of withstanding the sweltering heat with a peak air temperature of +40ºC;
Designed to handle a highest daily average air temperature blissfully at +30ºC;
Engineered for efficiency with a highest annual average air temperature of +20ºC;
Can endure even the chilliest of environments with a lowest outdoor air temperature dropping to -5ºC.
(This specification provides in-depth insights for situations requiring special service conditions.)
20/0.4kV Dry Type Transformer Technical Parameters (Showcasing second-level energy efficiency standards)
| Rated capacity (kVA) |
Voltage combination | Connected group label |
No-load loss (W) |
Load loss(W) | No-load current(%) |
Impendace voltage (%) |
sound power level (dB) |
Exterior size (L x w x h) |
Total weight (kg) |
||||
| High voltage (kV) |
tap range |
Low Voltage (kV) |
|||||||||||
| 130°C(B) | 155°C(F) | 180°C(H) | |||||||||||
| 100°C | 120°C | 145°C | |||||||||||
| 30 | 6 6.3 6.6 10 10.5 11 |
±2 x 2.5 ±5 |
0.4 | Dyn11 | 170 | 670 | 710 | 760 | 0.6 | 4.0 | 57 | 900 x 900 x 800 | 300 |
| 50 | 240 | 940 | 1000 | 1070 | 0.6 | 955 x 900 x 900 | 350 | ||||||
| 80 | 330 | 1290 | 1380 | 1480 | 0.6 | 58 | 985 x 950 x 960 | 400 | |||||
| 100 | 360 | 1480 | 1570 | 1690 | 0.6 | 1035x1250x980 | 450 | ||||||
| 125 | 420 | 1740 | 1850 | 1980 | 0.6 | 59 | 1060x1280x1000 | 500 | |||||
| 160 | 480 | 2000 | 2130 | 2280 | 0.6 | 1120x1320x1050 | 680 | ||||||
| 200 | 550 | 2370 | 2530 | 2710 | 0.5 | 60 | 1135x1330x1105 | 770 | |||||
| 250 | 640 | 2590 | 2760 | 2960 | 0.5 | 1170x1330x1165 | 900 | ||||||
| 315 | 790 | 3270 | 3470 | 3730 | 0.5 | 62 | 1185x1360x1225 | 1010 | |||||
| 400 | 880 | 3750 | 3990 | 4280 | 0.4 | 1210x1380x1300 | 1205 | ||||||
| 500 | 1040 | 4590 | 4880 | 5230 | 0.4 | 63 | 1245x1400x1380 | 1400 | |||||
| 630 | 1200 | 5530 | 5880 | 6290 | 0.4 | 63 | 1295x1410x1355 | 1515 | |||||
| 630 | 1170 | 5610 | 5960 | 6400 | 0.3 | 6.0 | 63 | 1295x1410x1355 | 1515 | ||||
| 800 | 1360 | 6550 | 6960 | 7460 | 0.3 | 65 | 1375x1450x1480 | 1880 | |||||
| 1000 | 1590 | 7650 | 8130 | 8760 | 0.3 | 1430x1480x1525 | 2170 | ||||||
| 1250 | 1880 | 9100 | 9690 | 10300 | 0.25 | 67 | 1480x1500x1570 | 2525 | |||||
| 1600 | 2200 | 11000 | 11700 | 12500 | 0.25 | 1500x1520x1710 | 2980 | ||||||
| 2000 | 2740 | 13600 | 14400 | 15500 | 0.20 | 69 | 1570x1550x1735 | 3480 | |||||
| 2500 | 3240 | 16100 | 17100 | 18400 | 0.20 | 1625x1600x1825 | 4080 | ||||||
| 1600 | 2200 | 12200 | 12900 | 13900 | 0.25 | 8.0 | 67 | 1500x1520x1710 | 2980 | ||||
| 2000 | 2740 | 15000 | 15900 | 17100 | 0.20 | 69 | 1570x1550x1735 | 3480 | |||||
| 2500 | 3240 | 17700 | 18800 | 20200 | 0.20 | 1625x1600x1825 | 4080 | ||||||
Note: As we are committed to innovation, product specifications, including dimensions and weight, are subject to refinement. Kindly consult the provided appearance size chart for the latest information when placing your order.
To ensure seamless processing of your order, please provide the following details:
1. Specify the type of prefabricated substation required;
2. Indicate the transformer model and its capacity;
3. Detail the primary wiring scheme for both high and low voltage circuits;
4. Identify any special requirements for electrical component types and parameters;
5. State your preference for shell color;
6. List the names, quantities, and any specific requirements for spare parts and accessories.
Two-year warranty
More than three certifications
15 years of accumulated experience
ABOUT OUR COMPANY
Golden Triangle Electric Power Technology Co., Ltd. (traded as Golden Triangle, stock code: 837424) has been a pioneering force in the power products industry since its inception in 2009. Specializing in the innovation, manufacturing, sales, and technical assistance of a diverse range of power products, the company offers advanced solutions such as three-dimensional coil core transformers, amorphous alloy core transformers, photovoltaic substations, and energy storage equipment. Our offerings are complemented by our expertise in high and low voltage switchgear, as well as European, American, and Chinese outdoor box substations. As an integrated production service enterprise, we excel in construction EPC, serving fields like the State Grid, Southern Power Grid, railways, mines, and infrastructure projects. Our products also extend to metallurgy, roads, bridges, and various real estate management systems.
Our company proudly holds multiple prestigious certifications, including ISO9001:2015 for quality management, ISO14001:2015 for environmental management, and ISO45001:2008 for occupational health and safety. Our commitment to quality and innovation has earned us PCCC energy-saving certification, China Compulsory Certification (CCC), and CQC quality approval, as well as an AAA credit rating. Recognized as a national high-tech entity, we are a provincial leader among 'specialized, special, and new' SMEs. Acknowledged for our growth potential, we rank among the top 100 most promising tech enterprises in the province, and we are designated as a municipal green factory. Our research and development center hosts an academician workstation and a doctoral innovation hub, boasting three invention patents and 51 utility model patents.
Our esteemed products feature in the 'Energy Saving and People Benefiting Project' and the 'Recommended Catalog of Energy Saving Electromechanical Equipment,' endorsed by the Ministry of Industry and Information Technology, the Ministry of Finance, and the National Development and Reform Commission. As Wenzhou's pioneering power industry firm to receive direct financial subsidies for product sales, our offerings have garnered accolades such as national industrial energy-saving technical equipment products and provincial honors for exemplary new industrial developments. Our hallmark products, the 'SCB13-RL solid triangle iron core dry-type transformer' and the 'SBH16-RL solid triangle rolled iron core amorphous transformer,' meet the distinguished 'Zhejiang manufacturing quality standard.' Our leadership in drafting 10 industry standards, including high-profile national and photovoltaic power generation transformer guidelines, underscores our commitment to energy conservation and the advancement of green energy technology in China's power sector.
THE HONOR OF COMPANY
- Q: Are you manufacturer?
- Q: Can I get guarantee of products?
- Q: Do you have any Certificate?
- Q: How to buy it? What about the delivery?
- Q: What's the payment terms?
For mass orders, we accept t/t and L/C.
- Q: What about the production?
- Q: Could you offer some spare parts?
- Q: What about the maintenance?
A: All the goods past the test, maintenance is very easy.
Golden Triangle Electric Power Technology Co., Ltd. is steadfast in our commitment to a quality policy that emphasizes 'quality first, honest service, rigorous management, and striving for perfection.' We are dedicated to offering our customers first-rate technology, unparalleled quality, and exceptional service. We extend a warm invitation to individuals and collaborators from all sectors to visit us for guidance and cooperation. Together, let's pursue common development and forge a 'win-win' partnership, creating a brighter future in collaboration with you!
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