Product Introduction
Shandong Zhifeng Transformer Co., Ltd. is nestled in the scenic and historically rich North Rainbow Industrial Park, East Second Ring Road, Linqing City, Shandong Province, a renowned canal city. The locale ensures effortless transportation and an enchanting environment. Spanning over 45,000 square meters, our company specializes in the comprehensive production, sales, and R&D of power equipment. Our product range includes 35KV and below oil-immersed transformers, dry transformers, special transformers, grounding transformers, arc suppression coils, reactors, box-type substations, American box transformers, and an array of other power solutions.
Product Introduction
The S11 and S13 series of fully sealed oil-immersed transformers are meticulously crafted for AC 50Hz with an operational voltage of 20kV and below. These transformers are ideal for various industries including petroleum, metallurgy, chemical, textile, and light industry, especially in environments with significant dust presence.
Product Characteristics
Iron Core
Our transformers feature an iron core made from cold-rolled silicon copper sheets with high magnetic permeability. This new type of core employs a full oblique joint stacking method, with the core column exhibiting a multi-step circular section, and consistent sections for both the iron yoke and the core itself.
Winding
The winding process incorporates corrugated oil channels and a no-paint dipping technique, ensuring tight tape binding. The concentric coils of the winding include a high voltage winding with essential tap connections, leading to the tap-changer. The switch, mounted on the box cover, allows for voltage adjustments prior to tapping.
Safety Protection Device
Our transformers, ranging from 30 to 2000kVA, come equipped with pressure relief valves to ensure safety.
Additionally, gas relays with alarm and tripping terminals are available upon user request, enhancing the protective measures.
Oil Temperature Measuring Device
Each transformer includes a glass thermometer tube base, positioned atop the tank and extending into the oil by 120±10mm. Transformers with capacities between 1000 to 2000KVA are also equipped with an outdoor signal thermometer for comprehensive monitoring.
Transformer Tank
The transformer tank boasts a corrugated wall design, with a dust-sprayed surface and a robust paint film. The corrugated heat sink not only ensures effective cooling but also features a 'breathing' function. Its elasticity compensates for volume changes in transformer oil due to temperature variations. This fully sealed design eliminates the need for an oil storage cabinet, reducing the overall height of the transformer. Vacuum oil filling during packaging removes moisture, preventing oxygen and moisture from compromising the transformer's insulation and oil quality. Regular oil sample testing is recommended to maintain optimal performance.
Factory Display
Product Specification
Rated capacity (kVA) |
Voltage combination |
Join group label |
No-load loss(W) |
Load
loss
(W) |
No-load
current (%) |
Short circuit
impedance (%) |
| |
high pressure
(kV) |
High pressure tap range(%) |
Low pressure
(kV) |
|
|
|
|
|
| 30 |
6
6.3
6.6
10
10.5
11 |
±5±2×2.5% |
0.4 |
Dyn11
Yzn11
Yyn0 |
80 |
630/600 |
1.8 |
4 |
| 50 |
100 |
910/870 |
1.6 |
4 |
| 63 |
110 |
1090/1040 |
1.6 |
4 |
| 80 |
130 |
1310/1250 |
1.5 |
4 |
| 100 |
150 |
1580/1500 |
1.4 |
4 |
| 125 |
170 |
1890/1800 |
1.4 |
4 |
| 160 |
200 |
2310/2200 |
1.3 |
4 |
| 200 |
240 |
2730/2600 |
1.2 |
4 |
| 250 |
290 |
3200/3050 |
1.2 |
4 |
| 315 |
340 |
3830/3650 |
1.1 |
4 |
| 100 |
410 |
4520/4300 |
1.1 |
4 |
| 500 |
480 |
5410/5150 |
1.0 |
4 |
| 630 |
570 |
6200 |
0.9 |
4.5 |
| 800 |
Dyn11
Yyn0 |
700 |
7500 |
0.8 |
4.5 |
| 1000 |
830 |
10300 |
0.8 |
4.5 |
| 1250 |
970 |
12000 |
0.7 |
4.5 |
| 1600 |
1170 |
14500 |
0.6 |
4.5 |
Note: 1. Load loss values above the slash line in the table apply to the Dynl1 connection group, while those below the line pertain to the Yyn0 connection group.
2. Performance parameters for other capacities can be customized as per user and manufacturer agreements.
Certification Certificate
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 period?
A: We offer a comprehensive 12-month warranty on our products.
Q: What is the production time?
A: The production time ranges from 30 to 45 days, depending on order specifications.
Q: What payment terms do you offer?
A: We accept payments via T/T, L/C, or through negotiation, ensuring flexibility for our valued clients.
Q: How does your factory conduct quality control?
A: Our stringent quality control measures involve a meticulous 100% QC inspection process, ensuring that each product meets our high standards of excellence. From raw material selection to the final stages of production, we conduct over 10 thorough QC inspections.
Q: Do you have any products in stock?
A: Generally, we do not keep stock. Each of our products is custom-manufactured based on your specific order requirements, guaranteeing tailored solutions for your needs.
Q: What does a custom transformer need to provide?
A: For optimal customization, providing technical drawings and detailed technical specification documents is ideal. Alternatively, you can share specific technical specifications from our 'Quote and Order Required Information' section.
Q: Can I have a catalogue and price list for my MOQ trial order?
A: All our products are proudly manufactured in China and thoroughly detailed on our official website. For specific enquiries or additional information, please feel free to contact us directly.
Audited Supplier 
){kind=link}
){kind=link}