Company profile
Shandong Zhifeng Transformer Co., Ltd. adheres to the concept of "sincere to the letter, brave to climb the peak", and takes customer satisfaction as the service purpose; We are committed to providing high quality, safe, energy saving and environmentally friendly power products for global power users.
The transformer produced by the company has outstanding quality, excellent price and excellent after-sales service. We will strive for excellence, create more excellent products, and look forward to sincere cooperation with new and old customers.
Open type: is a commonly used form, its body is in direct contact with the atmosphere, suitable for relatively dry and clean indoor, (when the ambient temperature is 20 degrees, the relative humidity should not exceed 85%), there are generally two kinds of air self-cooling and air cooling.
Enclosed: The device is in a closed shell and is not in direct contact with the atmosphere (due to poor sealing and heat dissipation conditions, it is mainly used for mining and belongs to explosion-proof type).
Casting type: casting with epoxy resin or other resins as the main insulation, it is simple in structure, small in size, suitable for smaller capacity transformers.
Product introduction
10kV grade SC(B)10,SC(B)11,SC(B)12,SC(B)13 epoxy resin cast dry-type transformers,which can be used as replacement products for oil-immersed distribution transformers.The products with excellent performance in dry-type transformers are especially suitable for important places such as urban power grids,high-rise buildings,business stations,docks,airports,underground substations.
The temperature control system consists of a temperature controller and a PTC temperature measuring element installed at the top end of the low-voltage winding, which is the most hot spot of the product, to realize the temperature measurement and control of the transformer. If the temperature of the transformer winding is too high due to overload operation or fault, the temperature controller will send an alarm signal, and the temperature will trip by itself when it exceeds the safe value. When forced air cooling is used, the temperature controller determines the input or switch of the cooling fan according to the winding temperature.
The temperature display system directly displays the hot spot temperature of the winding during the operation of the transformer, and can be used together with the temperature control system.
The temperature control and temperature display system can be installed at a certain distance from the main body of the transformer, and the length of the lead wire of the temperature measuring element is:
Temperature control: <20m
Temperature display: <10 m (two-wire system)
<100m (two-wire system with compensating wire)
Characteristics of the product
The SC(B)10 series 20kV, 35kV non-excitation voltage regulation dry transformer produced by our company is a low loss product.
In line with the national standards GB6450, GB/T10228 and IEC726 requirements, and has the following characteristics:
1. High performance, low loss, for the type 9 series replacement products.
2. The selection of high-quality silicon steel sheet, while greatly reducing the magnetic flux density, reduce the operation of silicon steel sheet magnetostrictive weight, effectively reduce noise c
3. Optimize the high-voltage coil structure, improve the distribution of interlayer voltage and capacitance, greatly improve the impact ability of the product to withstand atmospheric overvoltage and operating overvoltage, and also improve the electric field distribution, so that the product is further reduced.
4. Temperature control system and air cooling device can be configured to automatically start the fan cooling device when the load is too large, effectively improving the overload capacity of the equipment.
Product parameter
Type 106kV,l0kV dry-type none-excitation distribution transformers with Tap-changer Technical Data Sheet
| Type |
Connection group
symbol |
Voltage combination (kV) |
Non-load
current(%) |
Non-load loss
(M) |
Load loss V |
Short-circuit mpedance (%) |
| B(100ºC) |
F(120ºC) |
H(145ºC) |
| SC10-30 |
YynO
Dyn11 |
6~11±2×2.5% /0.4 |
2.1 |
190 |
670 |
710 |
760 |
4.0 |
| SC10-50 |
2.1 |
270 |
940 |
1000 |
1070 |
4.0 |
| SC10-80 |
1.6 |
370 |
1290 |
1380 |
1480 |
4.0 |
| SC10-100 |
1.6 |
400 |
1480 |
1570 |
1690 |
4.0 |
| SC10-125 |
1.5 |
470 |
1740 |
1850 |
1980 |
4.0 |
| SC10-160 |
1.5 |
540 |
2000 |
2130 |
2280 |
4.0 |
| SC10-200 |
1.3 |
620 |
2370 |
2530 |
2710 |
4.0 |
| SC10-250 |
1.3 |
720 |
2590 |
2760 |
2960 |
4.0 |
| SC10-315 |
1.1 |
880 |
3270 |
3470 |
3730 |
4.0 |
| SC(B)10-400 |
1.1 |
980 |
3750 |
3990 |
4280 |
4.0 |
| SC(B)10-500 |
1.1 |
1160 |
4590 |
4880 |
5230 |
4.0 |
| SC(B)10-630 |
0.9 |
1340 |
5530 |
5880 |
6290 |
4.0 |
| SC(B)10-630 |
0.9 |
1300 |
5610 |
5960 |
6400 |
6.0 |
| SC(B)10-800 |
0.9 |
1520 |
6550 |
6960 |
7460 |
6.0 |
| SC(B)10-1000 |
0.9 |
1770 |
7650 |
8130 |
8760 |
6.0 |
| SC(B)10-1250 |
0.9 |
2090 |
9100 |
9690 |
10370 |
6.0 |
| SC(B)10-1600 |
0.9 |
2450 |
11050 |
11730 |
12580 |
6.0 |
| SC(B)10-2000 |
0.9 |
3050 |
13600 |
14450 |
15560 |
6.0 |
| SC(B)10-2500 |
0.7 |
3600 |
16150 |
17170 |
18450 |
6.0 |
| SCB10-1600 |
0.9 |
2450 |
12280 |
12960 |
13900 |
8.0 |
| SCB10-2000 |
0.7 |
3050 |
15020 |
15960 |
17110 |
8.0 |
| SCB10-2500 |
0.7 |
3600 |
17760 |
18890 |
20290 |
8.0 |
Type 116kV,10kV dry-type none-excitation distribution transformers with Tap-changer Technical Data Sheet1
Shell protection device
Shell is made of stainless steel or aluminum alloy.Protection grade can reach IP20 and IP23.IP20 housing can prevent solid foreign objects of diameter more than 12mm enter into and protect the transformer safely.IP23 housing
can prevent the vertical drop of less than 60°of flow,suits for outdoor operation.
Note:IP23 housing can make the transformer cool,small capacity is decreased by about 5%,high-capacity is decreased by about 10%,
Application scenario
Resin cast dry transformers are widely used in various fields, such as high-rise buildings, power substations, petroleum, chemical and so on. Among them, for high-rise buildings, because it has the advantages of small size, light weight, low noise, and does not require special ventilation and heat dissipation conditions, it has become a popular transformer on the market.
In addition, resin cast dry transformer is also widely used in the petroleum and chemical industry, its anti-corrosion, explosion-proof and other characteristics, can work for a long time in a special environment.
Installation site
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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