Product introduction
The distribution transformer is one of the important equipment in the power supply and distribution system of industrial and mining enterprises and civil buildings, which reduces the 10(6)kV or 35kV network voltage to the 230/400V bus voltage used by the user. This kind of product is suitable for AC 50(60)Hz, three-phase maximum rated capacity 2500kVA(single-phase maximum rated capacity 833kVA, generally not recommended to use single-phase transformer), can be used indoors (outside), the capacity of 315kVA and below can be installed on the pole,
the ambient temperature is not higher than 40 ° C,
not lower than -25 ° C.
The maximum daily average temperature is 30ºC
the maximum annual average temperature is 20ºC,
the relative humidity is not more than 90%(ambient temperature is 25ºC), and the altitude is not more than 1000m.
If it does not conform to the above conditions of use, appropriate quota adjustment shall be made according to the relevant provisions of GB6450-86.
Coil core fully sealed distribution transformer, is a new generation of low-noise, low-loss transformer developed in recent years, its core without joints, a large reduction in no-load loss and no-load current, so that no-load current reduced by 60%~80%, high and low voltage coil on the core pillar continuous winding, winding tight, good concentricity, more enhanced product anti-theft performance. Noise reduction of more than 10 decibels. Lower temperature rise 16-20K. Due to the continuous winding of the iron core (pure circular cross section), the orientation of the silicon steel sheet is fully utilized, and the no-load loss is reduced by 20% to 30%.
Oi-immersed distribution transformers
| Rated capacdity (kVA) |
Voltage combinationand tap range |
Vector
group symbol |
Non-load
loss
(W) |
Load loss
(W) |
No-load
current
(%) |
Short arauit
mpedance
(%) |
High pressure
(kV) |
High pressure tap range (%) |
Low pressure
(kV) |
| 30 |
11
10.5
10
6.3
6 |
±5
±2×2.5% |
0.4
0.69
|
Yyn0
Dyn11 |
100 |
630/600 |
2.3 |
4 |
| 50 |
130 |
910/870 |
2.0 |
4 |
| 63 |
150 |
1090/1040 |
1.9 |
4 |
| 80 |
180 |
1310/1250 |
1.9 |
4 |
| 100 |
200 |
1580/1500 |
1.8 |
4 |
| 125 |
240 |
1890/1800 |
1.7 |
4 |
| 160 |
280 |
2310/2200 |
1.6 |
4 |
| 200 |
340 |
2730/2600 |
1.5 |
4 |
| 250 |
400 |
3200/3050 |
1.4 |
4 |
| 315 |
480 |
3830/3650 |
1.4 |
4 |
| 400 |
570 |
4520/4300 |
1.3 |
4 |
| 500 |
680 |
5410/5150 |
1.2 |
4 |
| 630 |
810 |
6200 |
1.1 |
4.5 |
| 800 |
960 |
7500 |
1.0 |
4.5 |
| 1000 |
1150 |
10300 |
1.0 |
4.5 |
| 1250 |
1360 |
12000 |
0.9 |
4.5 |
| 1600 |
1640 |
14500 |
0.8 |
4.5 |
| 2000 |
1960 |
19800 |
0.8 |
5 |
| 2500 |
2310 |
23000 |
0.7 |
5 |
Application scenarios
Oil-immersed transformer is a new type of high performance transformer with more reasonable structure and better performance. Because its three core columns are three-dimensional arrangements of equilateral triangles, there is no air gap in the magnetic circuit, the winding is closer, and the three magnetic circuits are the same length and the shortest, and the cross-sectional area of the core column is closer to the circle, so the performance is further improved, the loss is reduced, and the noise is reduced. Three balance, reduce the third harmonic component, the product is more suitable for urban and rural, industrial and mining enterprises grid transformation, more suitable for combined transformers and pre-installed transformer substation.
Shandong Zhifeng Transformer Co., Ltd. is located in the Rainbow Industrial Park at the north end of the East Second Ring Road, Linqing City, Shandong Province, a famous canal city, with convenient transportation, beautiful environment, and outstanding people. The company covers an area of 45,000 square meters. It is a production company integrating oil-immersed transformers, dry-type transformers, special transformers, grounding transformers, arc suppression coils, reactors, box-type substations, American-style box transformers, and various types of boxes up to 35KV. A professional power equipment manufacturing enterprise integrating sales and R&D.
The company strictly follows the operation standards of ISI9001 quality system management. Adopt computer-aided integrated design technology. Combined with the characteristics of various regional environments, we design professional products that meet customer needs to ensure high product quality. The company has advanced inspection and testing equipment such as comprehensive performance test bench, high-performance voltage withstand equipment, program-controlled variable frequency power supply, insulating oil gas chromatograph, acid value tester, insulating oil dielectric strength tester, oil dielectric loss tester, etc. Use vacuum drying equipment, digital winding machines, laser cutting lines and other superior production equipment. The product technology is advanced and the testing equipment is complete. There are more than 100 employees, including 5 senior engineers and 18 intermediate and senior technicians.
Shandong Zhifeng Transformer Co., Ltd. adheres to the concept of "Sincerity and Trust, Climbing the Peak" and takes customer satisfaction as its service purpose; it is committed to providing high-quality, safe, energy-saving, and environmentally friendly power products to global power users.
The transformers produced by the company are of outstanding quality, with excellent prices and excellent after-sales service. We will keep improving and create better products, and look forward to sincere cooperation with new and old customers.
Frequently asked question
Q: Are you a manufacturer, factory or trading company?
A: Yes, we have been engaged in the development, production and operation of transformers for more than 15 years.
Q: What is your warranty?
A: We offer a 12-month warranty.
Q: Production time?
A: 30 to 45 days or depending on order requirements.
Q: What are your payment terms?
A: T/T, L/C or negotiation.
Q: How does your factory conduct quality control?
A: We carry out 100% QC inspection to ensure that every product is qualified. From raw material to final product manufacturing process, we have more than 10 QC inspections.
Q: Do you have any products in stock?
A: Not normally. All our products are manufactured according to your order quantity.
Q: What does a custom transformer need to provide?
A: Technical drawings and technical specification documents are best, or you can tell us some detailed technical specification dates below "Quote and order required information".
Q: Can I have a catalogue and price list for my MOQ trial order?
A: All of our products are made in China or displayed on the official website, you are always welcome to ask us directly for more information.
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