This series of products are more advanced in design and have been greatly improved in material , stucture and technology . High and low pressure clamps are made of steel strip or upper beam and side beam , forming a strong frame structure to enhance the damping force of iron core and its resistance to transportation impact.Strong short drcuit resistance , beautiful appearance , reliable operation , low loss , low noise , reach the advanced level of similar products abroad .

Oil-immersed power transformers(50kva~1600kva 3-phase duplex winding non-excited tap-changing distribution transformen
Rated capacity (kVA) | Voltagecombinationand tap range | Vector group symbol | No-load loss(W) | Load loss (W) | No-load current (%) | Short citcut imp edance (%) | ||
High pressure (kV) | High pressure tap range (%) | Low pressur (kV) | ||||||
50 | 35 38.5 | ±5 ±2×2.5% | 0.4 | Dyn11 YynO | 130 | 1200/1140 | 1.30 | 6.5 |
100 | 185 | 2010/1910 | 1.10 | 6.5 | ||||
125 | 215 | 2370/2260 | 1.10 | 6.5 | ||||
160 | 225 | 2820/2680 | 1.00 | 6.5 | ||||
200 | 270 | 3320/3160 | 1.00 | 6.5 | ||||
250 | 320 | 3950/3760 | 0.95 | 6.5 | ||||
315 | 385 | 4750/4530 | 0.95 | 6.5 | ||||
400 | 465 | 5740/5470 | 0.85 | 6.5 | ||||
500 | 545 | 6910/6580 | 0.85 | 6.5 | ||||
630 | 665 | 7860 | 0.65 | 6.5 | ||||
800 | 785 | 9400 | 0.65 | 6.5 | ||||
1000 | 920 | 11500 | 0.65 | 6.5 | ||||
1250 | 1120 | 13900 | 0.60 | 6.5 | ||||
1600 | 1350 | 16600 | 0.60 | 6.5 | ||||
2000 | 1590 | 19700 | 0.55 | 6.5 | ||||
2500 | 1890 | 23200 | 0.55 | 6.5 |
Nste2 Accordingto requirements,the transformer can supply HV tap change±2×2.5%
Oil-immersed power transformers(630kva~31500kva triple phase duplex winding non exciting regulating power transformen)
Rated capact (kVA) | Voltage combinationand tap range | Vector group symbol | No-load loss (W) | Load loss (W) | No-load current (%) | Short circuit mpedance(% | ||
High pressure (kV) | High pressure tap range (%) | Low pressure (kV) | ||||||
630 | 35 | ±5% | 3.15 6.3 10.5 | Yd11 | 830 | 7870 | 1.10 | 6.5 |
800 | 980 | 9410 | 1.00 | 6.5 | ||||
1000 | 1150 | 11540 | 1.00 | 6.5 | ||||
1250 | 1410 | 13940 | 0.90 | 6.5 | ||||
1600 | 1700 | 16670 | 0.80 | 6.5 | ||||
2000 | 2180 | 18380 | 0.70 | 6.5 | ||||
2500 | 2560 | 19670 | 0.60 | 6.5 | ||||
3150 | 35~38.5 | ±5% | 3.15 6.3 10.5 | 3040 | 23090 | 0.56 | 7.0 | |
4000 | 3620 | 27360 | 0.56 | 7.0 | ||||
5000 | 4320 | 31380 | 0.48 | 7.0 | ||||
6300 | 5250 | 35060 | 0.48 | 7.0 | ||||
8000 | 35~38.5 | ±2×2.5% | 3.15 3.3 6.3 6.6 1.05 11 | Yd11 | 7200 | 38480 | 0.42 | 7.5 |
10000 | 8700 | 45320 | 0.42 | 7.5 | ||||
12500 | 10080 | 53870 | 0.40 | 8.0 | ||||
16000 | 12160 | 65840 | 0.40 | 8.0 | ||||
20000 | 14400 | 79520 | 0.40 | 8.0 | ||||
25000 | 17020 | 94050 | 0.32 | 8.0 | ||||
31500 | 20220 | 112860 | 0.32 | 8.0 |
Note 1:Outline dimensionis designed according to requirements.
It is commonly used to convert high and low voltages to transmit power over long distances, to regulate voltage, and to isolate and coupling. In addition, oil-immersed transformers can also be used in power plants, substations, and various large-scale industrial and civil facilities.

Product display

Packaging and transportation


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.




Frequently Asked Questions:
Q: Are you a manufacturer, factory, or trading company?
A: Yes, Shandong Zhifeng Transformer Co., Ltd. has over 15 years of experience in developing, producing, and operating transformers.
Q: What is your warranty?
A: We offer a 12-month warranty.
Q: Production time?
A: Production time is typically 30 to 45 days, depending on order requirements.
Q: What are your payment terms?
A: We accept T/T, L/C, or negotiation for payment terms.
Q: How does your factory conduct quality control?
A: We conduct 100% QC inspection to ensure product quality, with over 10 QC inspections from raw material to final product.
Q: Do you have any products in stock?
A: Normally, all products are manufactured according to your order quantity.
Q: What does a custom transformer need to provide?
A: Technical drawings and specification documents are preferred, or detailed technical specifications can be provided below "Quote and order required information".
Q: Can I have a catalogue and price list for my MOQ trial order?
A: All products are made in China or displayed on our official website. Feel free to contact us directly for more information.