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
Crafted with precision, the S11 and S13 series of fully sealed oil-immersed transformers are designed for AC 50Hz operations with an operational voltage of 20kV and below. These transformers are perfect for industries such as petroleum, metallurgy, chemical, textile, and light industry, especially in dusty environments.
Product Characteristics
Iron Core
Our transformers feature iron cores made from cold-rolled silicon copper sheets with high magnetic permeability. This innovative core employs a full oblique joint stacking method. The core column showcases a multi-step circular section, ensuring 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 include a high voltage winding with essential tap connections. The tap-changer switch, mounted on the box cover, allows for pre-tap voltage adjustments.
Safety Protection Device
Our transformers, ranging from 30 to 2000kVA, are equipped with pressure relief valves to ensure unparalleled safety.
Additionally, gas relays with alarm and tripping terminals are available upon user request, providing enhanced 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 feature 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.
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 |
400 |
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 expertise in the development, production, and operation of transformers.
Q: What is your warranty period?
A: We offer a comprehensive 12-month warranty on all 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 offer convenient and flexible payment options, including T/T, L/C, and negotiable terms, to cater to the diverse needs of our esteemed clients.
Q: How does your factory conduct quality control?
A: Our rigorous quality control protocol includes a comprehensive 100% QC inspection process, ensuring every product adheres to our superior standards of excellence. From the initial selection of raw materials to the final production stages, we implement over 10 detailed QC inspections to guarantee quality.
Q: Do you have any products in stock?
A: Typically, we do not maintain a stock inventory. Each product is meticulously custom-manufactured to meet your unique order specifications, providing tailored solutions that perfectly match your needs.
Q: What does a custom transformer need to provide?
A: For the most precise customization, it's best to supply technical drawings and detailed technical specification documents. Alternatively, you can provide specific technical details referenced in our 'Quote and Order Required Information' section.
Q: Can I have a catalogue and price list for my MOQ trial order?
A: Our entire product range is proudly crafted in China and comprehensively detailed on our official website. For specific inquiries or additional information, please do not hesitate to contact us directly.