Product Introduction
The S11 and S13 series of fully sealed oil-immersed transformers, crafted with precision, are ideally suited for AC 50Hz systems, with original working voltages of 20kV and below. These transformers are designed to serve a variety of industries such as petroleum, metallurgy, chemicals, textiles, light industry, and locations with high dust levels, providing robust and reliable distribution solutions.
Our state-of-the-art coil core fully sealed distribution transformer represents a new generation of low-noise, low-loss transformers. This design features a core without joints, significantly reducing no-load loss and current by 60% to 80%. The high and low voltage coils are continuously wound on the core pillar, ensuring tight winding, good concentricity, and enhanced anti-theft features. Experience a noise reduction of over 10 decibels and a lower temperature rise of 16-20K. Thanks to the continuous winding of the iron core with a pure circular cross-section, the silicon steel sheet's orientation is fully harnessed, achieving a reduction in no-load loss by 20% to 30%.
Oil-immersedDistributionTransformers
| 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
The S11 series 10-3150KVA/10KV distribution transformers offer outstanding energy-saving benefits through the use of innovative core materials. The magnetic circuit's even distribution notably reduces no-load excitation current and no-load loss, enhancing power factor and power supply quality. The all-inclined three-joint structure ensures reliable operation, compact size, lightweight, low noise, excellent craftsmanship, efficient heat dissipation, and low temperature rise. These transformers, with a fully sealed oil-immersed design, are pollution-free, maintenance-free, and highly efficient, perfect for residential areas, commercial streets, industrial enterprises, mining operations, and rural power and lighting systems operating at 10KV, 50Hz.
Shandong Zhifeng Transformer Co., Ltd. is strategically located in Rainbow Industrial Park at the north end of the East Second Ring Road, Linqing City, Shandong Province-a renowned canal city celebrated for its convenient transportation, beautiful environment, and industrious people. Spanning 45,000 square meters, our company specializes in the production, sales, and R&D of various power equipment, including oil-immersed transformers, dry-type transformers, special transformers, grounding transformers, arc suppression coils, reactors, box-type substations, American-style box transformers, and numerous 35KV boxes. We are a premier manufacturing enterprise dedicated to delivering superior power solutions.
Our company adheres strictly to the ISI9001 quality system management standards. We employ advanced computer-aided integrated design technology and tailor our products to meet the unique needs of various regional environments, ensuring top-notch quality. Equipped with comprehensive performance test benches, high-performance voltage withstand equipment, program-controlled variable frequency power supplies, and advanced testing devices such as insulating oil gas chromatographs, acid value testers, and oil dielectric loss testers, our production capabilities are second to none. Utilizing vacuum drying equipment, digital winding machines, and laser cutting lines, we guarantee superior product technology and complete testing infrastructure. Our team includes over 100 employees, featuring 5 senior engineers and 18 intermediate and senior technicians.
Committed to the philosophy of 'Sincerity and Trust, Climbing the Peak,' Shandong Zhifeng Transformer Co., Ltd. places customer satisfaction at the forefront of our mission. We are dedicated to delivering high-quality, safe, energy-efficient, and eco-friendly power products to global power users.
Our transformers are renowned for their exceptional quality, competitive pricing, and outstanding after-sales service. We continuously strive for excellence and innovation, and we eagerly anticipate building sincere and cooperative relationships with both new and longstanding customers.
Frequently Asked Questions
Q: Are you a manufacturer, factory, or trading company?
A: Yes, we are a manufacturer with over 15 years of experience in the development, production, and operation of transformers.
Q: What is your warranty?
A: We provide a comprehensive 12-month warranty.
Q: What is the typical production time for your transformers?
A: Our production time ranges from 30 to 45 days, depending heavily on the specifics and requirements of your order.
Q: What payment terms do you offer for your products?
A: We accept various payment methods including T/T, L/C, and are open to negotiation to suit your needs.
Q: How does your factory ensure the quality of its transformers?
A: We implement rigorous quality control with 100% QC inspection. From raw materials to the final manufacturing process, our products undergo over 10 meticulous QC inspections to guarantee excellence.
Q: Do you keep any transformers in stock?
A: Typically, we do not maintain stock as all our products are custom-manufactured according to your specific order quantities.
Q: What information is required to design a custom transformer?
A: Providing technical drawings and detailed technical specifications is ideal. Alternatively, you can supply detailed technical specification data as outlined in our 'Quote and Order Required Information' section.
Q: Can I obtain a catalogue and price list for a trial order with MOQ?
A: Indeed, all our products are made in China and showcased on our official website. Feel free to contact us directly for comprehensive information tailored to your needs.
Audited Supplier 
){kind=link}
){kind=link}