Low Loss Power Transformer
This power transformer is a fully sealed oil-immersed transformer with the advantages of low loss and low noise, which is desirable for good energy-saving effects and reducing pollution. Compared with ordinary oil-immersed transformers, fully sealed transformers eliminate the oil conservator....
Description
Low Loss Power Transformer
This power transformer is a fully sealed oil-immersed transformer with the advantages of low loss and low noise, which is desirable for good energy-saving effects and reducing pollution. Compared with ordinary oil-immersed transformers, fully sealed transformers eliminate the oil conservator. The oil volume of the transformer is automatically adjusted and compensated by the elasticity of the corrugated sheet of the corrugated oil tank. The transformer is isolated from the air to prevent and slow down the deterioration of the oil and the aging of the insulation, enhance the reliability of operation, and the normal operation is maintenance-free.
1、 What is an oil immersed transformer?
Oil immersed transformer, also known as oil immersed transformer, is a transformer device that uses oil cooling to reduce the temperature of the transformer. Unlike dry transformers, the main body of an oil immersed transformer is installed in a welded steel oil tank filled with insulating oil. When an oil immersed transformer is in operation, the heat from the coil and iron core is first converted into insulating oil and then into cooling medium. According to the capacity, it can be divided into immersed Free cooling transformer and immersed forced air cooling transformer.
2、 The structure and working principle of oil immersed transformers
Oil immersed transformers are structurally similar to transformers It is one of the types of transformers classified according to the insulation form of the iron core. Therefore, it has recognizable features of oil immersed coils, which can reduce the heat map of the equipment inside.
The basic components of the oil immersed type are composed of magnetic cores, windings, and bushings. The magnetic core provides a path for magnetic flux. The winding creates a magnetic field consisting of a conductor coil wound around an iron core and insulated with a cardboard barrier and shielding layer. The thickness of the winding insulation layer increases with increasing voltage. The bushing connects the transformer winding to the substation.
Oil type transformers are used for power distribution or substations. Their core and coils are immersed in oil, which can cool and insulate. Oil circulates through the pipes in the coil and around the coil and iron core components through convection. The oil is cooled externally by the fuel tank at low rated values, and by an air-cooled radiator at high rated values.
3、 Types of oil immersed transformers
There are two main types of oil immersed transformers: single-phase transformer and three-phase transformer.
A. One phase oil immersed transformer
B. Three-phase oil immersed transformer
4、 Purpose of using oil immersed transformers
Oil type transformers can be installed on the ground, base, or pole for outdoor use. They provide efficient performance in various applications, including transmission and distribution networks, renewable energy generation, and small industries.
The oil transformer has a huge capacity, so it will save a lot of electricity, minimize energy loss, save energy, and reduce user costs. Not only that, the oil in the machine can also cool the internal wire cores, thereby improving the durability and electrical performance of transformer equipment.
5、 Precautions for using oil-immersed transformers
1. Oil immersed transformers use oil for operation, so the quality of the oil will significantly affect the lifespan and safety of the transformer.
2. During use, it is necessary to regularly inspect and maintain the transformer system to ensure the normal and safe operation of the machine. Otherwise, there is a high risk of problems and extreme danger.
3. The waste generated by petroleum is prone to polluting the environment and affecting the lives of surrounding people. Therefore, the gradual disposal of waste is also important
Traduction pour : Transfo H61 20KV 160kVA B2
H61 Transformer 15(20)kV 160kVA B2
Three-phase MV / LV distribution transformer with MV and LV windings in wound copper power P = 160KVA
- Compliance: NFC 52 100 - 52 112 and 52 113 standard or equivalent in substance
- Natural cooling: ONAN
- MV voltage adjustment: by switch off +/- 5% in five (5) positions
- Type: on post H61
- Nominal power: 160KVA
- Primary rated voltage: 20,000V ± 5%
- Secondary voltage: 410V off-load between phases / 240V between phase and neutral
- Frequency: 50Hz
- Short-circuit voltage: 4%
- No-load loss less than or equal to 300W
- Load loss less than or equal to 2000W
- Coupling: Dyn11 with output neutral
- MV and LV crossings: in porcelain

Normal use condition of transformer
The altitude does not exceed 1000m;
Ambient temperature:
Maximum temperature +40℃
Average temperature of the hottest month +30°C
The highest annual average temperature +20℃
Minimum outdoor temperature -25℃
Parameters
Rated capacity(kVA) | Voltage group(kV) | Connection method | Dissipation(kW) | No-load current(%) | Load current(%) | Insulating level | Weight (KG) | |
No-Load | Load (120℃) | |||||||
80 | HV: 11 10.5 10 6.3 6 LV: 0.4 | Dyn11 OR Yyn0 | 0.370 | 1.75 | 2.2 | 4 | F/F | 490 |
100 | 0.400 | 2.17 | 2.0 | 520 | ||||
125 | 0.470 | 2.59 | 1.8 | 650 | ||||
160 | 0.545 | 3.10 | 1.8 | 740 | ||||
200 | 0.625 | 3.97 | 1.6 | 850 | ||||
250 | 0.720 | 4.68 | 1.6 | 1005 | ||||
315 | 0.880 | 5.61 | 1.4 | 1270 | ||||
400 | 0.975 | 6.63 | 1.4 | 1470 | ||||
500 | 1.160 | 7.95 | 1.4 | 1750 | ||||
630 | 1.300 | 9.78 | 1.2 | 6 | 1900 | |||
800 | 1.520 | 11.56 | 1.2 | 2290 | ||||
1000 | 1.770 | 13.35 | 1.1 | 2700 | ||||
1250 | 2.090 | 15.64 | 1.1 | 3130 | ||||
1600 | 2.450 | 18.11 | 1.1 | 3740 | ||||
2000 | 3.320 | 21.25 | 1.0 | 4500 | ||||
2500 | 4.000 | 24.74 | 1.0 | 5340 | ||||
PRODUCT PHOTO










COMPANY OVERVIEW
Jiyuan Fengyuan Electrical Equipment Co., Ltd was established in 1984 and is a designated enterprise specializing in the production of high and low voltage switch cabinets by the State Grid Corporation of China.
We have more than 30 years professional experience in high and low voltage complete switchgear cabinet,box type substation,transformer,etc, have CE,ISO, GB,CQC,certificate
Factory directly,Professional manufacturer, All can be customized according to your local requirement
Welcome to inquiry

EXHIBITION

PACKING&DELIVERY


FAQ
1. Q: What is your minimum order quantity?
A: One set.
2. Q: What is your packaging method?
A: Cover with a plastic bag and put it in a wooden box. The transformer has been transported to you by ship, train, airplane, etc. The specific transportation method is up to you.
3. Q: What are the payment terms?
A: T/T, L/C, Western Union, etc.
4. Q: Are OEM and ODM available?
A: Yes. Our products can be customized. We have a team of design and engineers, and we can customize products according to customers' drawings or requirements.
5. Q: Are you a manufacturer or a trader?
A: We are a professional transformer manufacturer with more than 20 years of design experience.
6. Q: Where is your factory?
A: Our factory is located in Henan, China, and the delivery is timely. Warmly welcome you to visit the factory. Once we have your schedule, we will arrange professionals to follow up with your needs.
This product is usually customized.
We are a manufacturer and have a professional technical department that can design and provide solutions according to customer needs.
Please contact our sales personnel to obtain design drawings
Here are our customer examples for your reference
Togo customer
Data Sheet N° 1-A: Transformer H61 20kV/400V of 100kVA
DESIGNATIONS | UNITS | SPECIFIC DATA | CANDIDATE DATA |
Maker | To be indicated | ||
Reference standard | IEC 60076 | ||
Type | Phase | ||
Vat | Hermetic | ||
Execution | Tropicalized | ||
Dielectric | PCB-free oil | ||
Installation | On pole | ||
Operating ambient temperature | °C | 45 | |
Rated frequency | Hz | 50 | |
Rated power | Kva | 100 | |
Rated primary voltage | Kv | 20 | |
Isolation level assigned to primary school | Kv | 24 | |
Number of phases in primary school | 03 | ||
Secondary voltage | V | 400/230 | |
Voltage adjustment range on the M side when unladen | % | ±2.5 | |
Coupling | DYn11 | ||
Short circuit voltage | % | 4 – 4.5 | |
Neutral sized for one load | % | 100 | |
Maximum vacuum losses | W | 230 - 460 | |
Losses due to Maxi load | W | 1450 - 2350 | |
Maximum steady-state oil temperature | °C | 55 | |
Maximum temperature of the windings in steady state | °C | 60 | |
Winding material | Electrolytic copper | ||
Maximum noise level | Db | 52 | |
50Hz industrial frequency hold, 1 min | Kv | 50 – 70 | |
Shock wave resistance (1.2/50 micros) | Kv | 125 - 170 | |
Cooling | ONAN | ||
Nameplate | 01 | ||
Grounding connection | 01 | ||
Dimensions Height/width/depth | mm x mm x mm | 1200 X 1270 X 820 | |
Total mass of transformer including oil | Kg | 700 | |
Oil mass | Kg | 160 | |
PAINT | |||
§ Tropicalized and anti-rust | |||
Number | § Layers | ||
§ Binder | |||
§ Colour | |||
Plans and technical diagrams to be provided. | |||
IF NEED MORE DETAILES,PLEASE FEEL FREE YO CONTACT US
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