Product Description
Power Transformer
Large power transformers are the core of the power transmission system and are indispensable. Their core function is to convert high voltage to low voltage and vice versa, laying the foundation for long-distance transmission and distribution of electricity.
They can efficiently handle high power. For instance, 110KV-220kV high-voltage transformers, optimized and verified through dedicated programs, feature small size, low loss, and other advantages, enabling efficient and reliable power supply.
With a conversion efficiency of over 95% (and over 99% for some models), they significantly reduce long-term operating costs. They boast excellent insulation performance, high stability, and the ability to adapt to harsh environments. Additionally, they have low maintenance costs and a long service life, providing solid support for the power system.
Power Capacity: 1MVA-1000MVA
Voltage Level: 10KV,20KV,35KV,47KV,56KV,66KV,110KV,138KV...... 220kv 330kv 500kvand Others as customers requirement
Voltage Regulation Types: On-load tap changing (OLTC) and off-load tap changing.
On-load tap changers are divided into: Vacuum type and oil-immersed type.
The bell-shaped tank, constructed from Q235B steel plates (with detachable cooling fins), enhances structural strength and provides an improved appearance.
The conservator (oil-expansion tank) employs either a diaphragm type or corrugated metal expansion design.
Tapping Range: ±8 x1.25 %
Maximum temperature rise (above ambient temperature): 65K
Maximum ambient temperature: 40°C
Installation height: 3000M
Frequency: 50Hz or 60Hz
Phases: Three
Connection Symbol: Dyn11,Yyn0 ( or as requested)
Short-circuit lmpedance: Standard lmpedance
If it can't meet such conditions,we will modulate parameters in accordance with standard.
Product Parameters
| Main Technical Parameters for oil-immersed power transformer(can customize it according to your techncial data) |
Rated
Capacity(KVA) |
Voltage Combination |
Vector
Group |
Short-circuitimpedance |
No-load
Loss (KW) |
Load Loss
(KW) |
No-load
Curent% |
| High Voltage(KA) |
High Voltage
Tapping Range |
Low Voltage(KA) |
| 6300 |
63
66
69
110
132
138
220
or others
|
±8x1.25%
or others |
6.3
6.6
10.5
11
33
69
or others |
YNd11 YNyn0 or others |
10-14 |
9.4 |
34 |
0.63 |
| 8000 |
11.2 |
40.4 |
0.63 |
| 10000 |
13.1 |
47.6 |
0.75 |
| 12500 |
15.4 |
56.5 |
0.53 |
| 16000 |
18.5 |
69.5 |
0.49 |
| 20000 |
21.8 |
84.2 |
0.49 |
| 25000 |
25.6 |
99.5 |
0.4 |
| 31500 |
30.4 |
120 |
0.4 |
| 40000 |
36.4 |
140.3 |
0.39 |
| 50000 |
42.6 |
174.3 |
0.39 |
| 63000 |
52 |
210 |
0.39 |
| 75000 |
60 |
238 |
0.49 |
| 90000 |
69 |
274 |
0.49 |
| 120000 |
85 |
328 |
0.46 |
| 150000 |
101 |
385 |
0.42 |
| 160000 |
105 |
404 |
0.42 |
| 180000 |
115 |
436 |
0.42 |
| 240000 |
144 |
539 |
0.4 |
| 110KVThreePhaseCopper100%PowerTransformer |
Rated
Capacity(KVA) |
No-load
Loss (KW) |
On-load Loss(kW) |
Off-load Current
(%) |
Short Circuit Impedance
|
Dimension (LxWxH)
(mm) |
Total Weight
(kg) |
| 6300 |
10 |
36.9 |
0.6 |
10.5%
|
4540*4350*4580 |
21100 |
| 8000 |
12 |
45 |
0.6 |
4860*4400*4630 |
24600 |
| 10000 |
14.2 |
53.1 |
0.5 |
4900*4450*4830 |
27900 |
| 12500 |
16.8 |
63 |
0.5 |
5010*4500*4960 |
31600 |
| 16000 |
20 |
77 |
0.45 |
5620*4520*5080 |
35600 |
| 20000 |
24 |
91.7 |
0.4 |
5730*4550*5200 |
39800 |
| 25000 |
28.4 |
110.7 |
0.4 |
5820*4590*5290 |
45200 |
| 31500 |
33.5 |
133.2 |
0.35 |
5930*4820*5400 |
49600 |
| 40000 |
40.4 |
156.6 |
0.3 |
6100*4930*5500 |
57100 |
| 50000 |
47 |
194.4 |
0.25 |
6450*5050*5590 |
64700 |
| 63000 |
56.8 |
234 |
0.25 |
6970*5190*5690 |
71800 |
| 220KVThreePhaseCopperPowerTransformerMainTechnicalparameters |
Rated
Capacity(KVA) |
High Voltage(kV)
|
Connection Symbol
|
No-load
Loss (KW) |
On-load Loss(kW) |
Off-load Current
(%) |
| 31500 |
220/230 |
YNd11 |
35 |
135 |
0.7 |
| 40000 |
41 |
157 |
0.7 |
| 50000 |
49 |
189 |
0.65 |
| 63000 |
58 |
220 |
0.65 |
| 75000 |
67 |
250 |
0.6 |
| 90000 |
77 |
288 |
0.55 |
| 120000 |
94 |
345 |
0.55 |
| 150000 |
112 |
405 |
0.5 |
| 160000 |
117 |
425 |
0.49 |
| 180000 |
128 |
459 |
0.46 |
| 240000 |
160 |
567 |
0.42 |
Detailed Photos
High Efficiency & Low Losses
Premium Material Technology: Utilizes high-grade silicon steel (e.g., grain-oriented silicon steel) and advanced winding techniques (e.g., foil winding or helical winding) to reduce no-load losses (iron losses) and load losses (copper losses).
Voltage Regulation: Adapts to wider voltage fluctuations through on-load tap changing (OLTC) or de-energized tap changing.
Harmonic Suppression: Incorporates specialized winding designs (e.g., DYn11 connection group) to suppress 3rd-order harmonics, ensuring compatibility with renewable energy (PV/wind) grid integration.
Short-Circuit Durability: Validated through short-circuit testing with optimized impedance design to minimize fault current impact.
Customization & Global Applicability: Offers tailored solutions per customer requirements, including:
Capacity customization (1kVA to 1000MVA)
Voltage classes (up to ±500kV UHV)
Special protections (e.g., salt-mist resistance, explosion-proof)
Smart Transformer Capabilities:
Integrated advanced monitoring systems enabling real-time data management for enhanced safety.
Enhanced Mechanical Robustness:
Optimized winding arrangement supported by internal/external structural bars
High-voltage pressboard cylinders between coils to increase short-circuit withstand capacity
Advanced Manufacturing Processes:
Crimping welding technology, phase-assembled winding techniques, and precision pressboard processing.
Custom Electrical Parameters:
Custom voltage ratios, vector groups, and power ratings available to meet specific project requirements.
Company Profile
Xuzhou Jinteng Intelligent Electrical Technology Co., Ltd. is headquartered in Xuzhou, Jiangsu Province, China. As a leading power transmission and distribution solution provider, we rely on years of industry experience to focus on the research and development, production and sales of transformers (oil-immersed/dry type), substations, switchgear, ring main units and prefabricated energy storage cabins. The company has always deeply integrated cutting-edge technology with international standards (such as IEC, IEEE, ANSI), and is committed to providing global customers with smart power equipment that is energy-efficient, safe and reliable and adaptable to complex climatic conditions.Our products have successfully covered markets such as Asia, Africa, the Middle East, Southeast Asia and South America. Through the successful implementation experience of 500+ overseas projects, the company has not only demonstrated its strict compliance with ISO9001 quality management system, ISO14001 environmental management system and CE certification, but also effectively helped customers improve operational efficiency. Relying on a professional R&D team, advanced testing equipment and precision manufacturing technology, the company continues to promote technological innovation and expand its global business territory.In order to meet the diverse needs of customers, we provide a dual service model of standardized product selection and customized engineering support, which can not only achieve large-scale delivery, but also meet the personalized needs of ODM/OEM cooperation and special scenarios. In the future, Xuzhou Jinteng will continue to uphold the "customer-centric" innovation concept and work with global partners to build a new smart power ecosystem through a sustainable development strategy. If you need professional product solutions or technical support, please feel free to contact us - looking forward to creating value with you!
Patent certificate
Our company's products have passed IS09001, 14001 and CE certificates, and we can alsoprovide relevant certificates that meet customer national requirements.
customer visit
Xuzhou Jinteng Intelligent Electrical Technology Co., Ltd.
Serve customers professionally, offer customers best solution. make it easy to do business together regardless of customers' location.
Packaging & Shipping
Delivery capability
Packaging:
Jinteng Transformers are packed in robust seaworthy wooden crates featuring:
Durability: Premium timber ensures damage-free transit.
Shock-Absorbing Design: Specialized cushioning materials internally absorb impacts to protect transformers.
Superior Sealing: Hermetically sealed crates prevent moisture/dust ingress, preserving product integrity.
Logistics:
Through strategic partnerships with multiple logistics providers, we ensure efficient delivery via:
Optimized Routing: Destination-based route planning minimizes delivery time.
Real-Time Tracking: Customers monitor shipments via online systems for full transparency.
Proactive Coordination: Regular communication with partners resolves transit issues promptly.
These measures guarantee intact delivery while enhancing customer satisfaction and trust.
FAQ
Q.Are you a trading company or manufacturer ?
We are a professional factory with 10 years of experience in the field of substations, transformers, high and low voltage switchgear, cable junction boxes and various electrical equipment such as vacuum circuit breakers, load switches, etc. Our factory is an excellent supplier of State Grid Corporation of China.
Q. Do you accept customized serveice ?
We ofer ODM/OEM service , can print your logo on product . our professional technical and quotation teamcan provice a satisfied project according to your drawing and parameters
Q. What is your MoQ?
Our MOQ is 1 piece.
Q. How long is your delivery cycle? It depends on your product requirements and quantity. Normally, it takes 15-30 working days to deliver, and the delivery time for large power transformers is generally 80-90 days.
Q. After-sales installation problems?
We will provide online installation guidance after the product arrives, or send professional engineers to guide the installation on site.
Q. What are your warranty terms?
We provide a 24-month warranty period. During the warranty period, if the transformer is damaged due to the product's own design or quality problems, please provide pictures and videos. After analysis, we will send professional engineers to inspect and repair on site.
Q. What are your payment terms?
50% deposit in advance, 50% before shipment, and the balance after receiving the goods, or you can also use a letter of credit.
Q. Can we visit our company?
Yes, of course, you are welcome to visit our company.
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