About us
Shandong Zhifeng Transformer Co., Ltd. is located in the North Rainbow Industrial Park, East Second Ring Road, Linqing City, Shandong Province, a famous canal city, with convenient transportation and beautiful environment. The company covers an area of 45,000 square meters, is a collection of 35KV and below oil-immersed transformer, dry transformer, special transformer, grounding transformer, arc suppression coil, reactor, box-type substation, American box transformer, all kinds of box production, sales, research and development in one of the professional power equipment manufacturing enterprises.
Product introduction
This series product uses in the 20kV,35kV electrical network power source reducing is directly the 400V power distribution power source or the 10kV electric transmission power source is the user power supply,because has the remarkable merit,uses for more and more many projects.Its main merit indludes:
1.The reduced occupying a land area of and multistage changes the electricity engineering construction,has the remarkable social efficiency.
2.Saves the project investment,enhances the economic efficiency.
3.Simplifies the 10kV power transformer link,causes the movement maintenance cost to reduce obviously.
4.Uses the high-pressured undercurrent to replace the low pressure big electric current electric transmission,reducesthe line loss,reduces the / ine movement cost.
5.The 35kV,20kV power source enters directly uses electricity the center,enhances the power supply effectively the reliability.
Product characteristics
1. High safety: SG10 transformer is non-flammable resin, non-combustion during use, flame retardant, will not explode and release toxic gases, will not cause harm to the environment, other equipment and human body, and is not sensitive to humidity, dust and pollution; Operation without partial discharge and never "crack" possibility.
2. High reliability: NOMEX insulation materials are used for high and low voltage coils, and H-class solvent-free impregnation paint is repeatedly impregnated by VPI vacuum pressure equipment, and high temperature curing is repeated. The product is grade H (180 ° C), and the main insulation material is grade C (220 ° C), which has strong overload capacity and good short-circuit resistance. In the case of good ventilation, allow 20% overload operation.
3. Energy saving and environmental protection: After the end of product life, steel, iron and other materials are easy to recycle; All NOMEX paper used will not release toxic substances when burned; Other insulating materials can degrade and do not pollute the environment; Low loss of products, energy saving; Low noise and flexible design.
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
35kV the level SC(B)10 series presses the distribution transformer performance parameter list without the excitation accent
Rated
Capacity (kVA) |
Connection
group symbol |
Voltage combination(kV) |
Non-load
Cufrent
(%) |
Under the different insulation
heat-resisting rank load loses(W) |
Non-load
loss
(W) |
Short-circuit
impedance
(%) |
high press
(kV) |
High pressure tapping
range(%) |
Low pressur
(kV) |
B(100ºC) |
F(120ºC) |
H(145°ºC) |
| 50 |
YynO
Dyn11 |
35
~
38.5 |
±5
2×2.5 |
0.4 |
2.6 |
1350 |
1420 |
1520 |
450 |
6.0 |
| 100 |
2.2 |
1970 |
2080 |
2230 |
630 |
| 160 |
1.6 |
2650 |
2810 |
3010 |
790 |
| 200 |
1.6 |
3130 |
3320 |
3560 |
880 |
| 250 |
1.4 |
3560 |
3800 |
4060 |
990 |
| 315 |
1.4 |
4250 |
4510 |
4820 |
1170 |
| 400 |
1.2 |
5090 |
5410 |
5770 |
1370 |
| 500 |
1.2 |
6240 |
6650 |
7070 |
1620 |
| 630 |
1.0 |
7260 |
7690 |
8260 |
1860 |
| 800 |
1.0 |
8550 |
9120 |
9730 |
2160 |
| 1000 |
0.8 |
9880 |
10450 |
11210 |
2430 |
| 1250 |
0.7 |
12060 |
12730 |
13580 |
2830 |
| 1600 |
0.7 |
14630 |
15480 |
16530 |
3240 |
| 2000 |
0.7 |
17190 |
18240 |
19470 |
3820 |
| 2500 |
0.7 |
20610 |
21850 |
23370 |
4450 |
Note:In thetable arrangestheload loses for the parenthesis refers to the temperaturefto see thestipulation of GB1094.11)undervalue.
35kV the level SC(B)10 series adjusts the dehydration pressing type power transformer performance parameter list without the excitation
Rated
Capacity
(kVA) |
Connection
group symbol |
Voltage combination (kV) |
Non-load
current
(%) |
Under the different insulation heat-
resisting rank load loses(VV) |
Non-load
loss
(W) |
Short-circuit
impedance
(%) |
high pressure
(kV) |
High pressure tapping
Irange% |
Low pressure
(kV) |
B
(100ºC) |
(120ºC) |
H
(145ºC) |
| 800 |
Dyn11
Yd11
YynO |
35
~
38.5 |
±5
2×2.5 |
3.15
6
6.3
10
10.5
11 |
0.9 |
8930 |
9400 |
10070 |
4860 |
6.0 |
| 1000 |
0.9 |
10260 |
10920 |
11680 |
2250 |
| 1250 |
0.8 |
12160 |
12920 |
13770 |
2673 |
| 1600 |
0.8 |
14630 |
15480 |
16530 |
3130 |
| 2000 |
0.7 |
17190 |
18240 |
19570 |
3690 |
7.0 |
| 2500 |
0.7 |
20610 |
21850 |
23370 |
4230 |
| Rated Capacity (kVA) |
Connection group symbol |
Voltage combination (kV) |
Non-load
current
(%) |
Under the different insulation heat
resisting rank load loses(VV) |
Non-load
loss
(W) |
Short-
circuit
impedance
(%) |
high pressure
(kV) |
High pressure tapping
range % |
Low pressure
(kv) |
B
(100ºC) |
F
(120ºC) |
H
(145°ºC) |
| 3150 |
Dyn11
Yd11
YynO |
35
~
38.5 |
±5
2×2.5 |
3.15
6
6.3
10
10.5
11 |
0.6 |
23080 |
24510 |
26120 |
6030 |
8.0 |
| 4000 |
0.6 |
27930 |
29450 |
31350 |
7020 |
| 5000 |
0.5 |
32960 |
34960 |
37330 |
8370 |
| 6300 |
0.5 |
38470 |
40850 |
43600 |
9900 |
| 8000 |
Dyn11
Yd11
YNd11 |
0.4 |
43410 |
46070 |
49300 |
11340 |
9.0 |
| 10000 |
0.4 |
52720 |
55570 |
59470 |
12960 |
| 12500 |
6
6.3
10
10.5
11 |
0.3 |
60800 |
64600 |
69060 |
15750 |
| 16000 |
0.3 |
71720 |
76000 |
80560 |
19350 |
| 20000 |
0.3 |
80750 |
85500 |
91480 |
22950 |
10.0 |
Note:Inthe table arranges the load loses for the parenthesis refers to the temperatureto see the stipulation of GB1094,11)undervalue.
Transformer core
1, the core adopts high permeability and high-quality grain orientation cold rolled silicon steel, using 45° five-step overlap method to reduce no-load loss and no-load current.
2, the core design adopts simulation analysis method, accurate and effective calculation of vibration frequency and amplitude.
3, the iron core and the coil, the iron core and the clamp between the flexible connection. Through these measures, the noise level of the transformer is increased by 10-15dB compared to conventional products.
Application scenario
Dry transformer, relying on air convection for cooling, generally used for local lighting, electronic lines. Mechanical equipment and other transformers, in the power system, the general turbine transformer, boiler transformer, ash transformer, dust transformer, desulfurization transformer, etc. are dry transformers, dry transformers are now widely used in power stations, factories, hospitals and other almost all electrical. With the promotion and application of SC(B)9 series with low noise (distribution transformer noise below 2500kVA has been controlled within 50dB) and energy saving (no-load loss reduced by 25%), the performance indicators and manufacturing technology of dry transformers in China have reached the world's advanced level.
Product display
Packaging and transportation
Certification certificate
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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