The 220 kV Oil-Immersed High Voltage Power Transformer is a state-of-the-art solution designed for efficient and reliable energy distribution in high-voltage power networks. Built with advanced technology and premium materials, this transformer ensures optimal performance, energy efficiency, and long-term reliability, making it ideal for utility, industrial, and commercial applications.
-High Voltage Capacity: Designed for 220 kV systems, this transformer is capable of handling high-voltage power transmission and distribution with exceptional efficiency.
-Energy Efficiency Low Loss Design: No-load losses are reduced by 20% below national standards, and load losses are reduced by 5%, ensuring significant energy savings.
-Quiet Operation: Operates at noise levels below 60 dB during natural cooling, which is 3 to 5 dB lower than national standards, making it suitable for noise-sensitive environments.
-Low Partial Discharge: Dust-free manufacturing processes ensure partial discharge levels remain below 100 pC, enhancing reliability and lifespan.
-Short Circuit Resistance: Successfully tested for sudden short circuit conditions at the National Transformer Testing Center, ensuring durability under extreme electrical stresses.
-Leak-Proof Construction: Sealing components are made from one-piece acrylic molding and undergo fluorescence, positive pressure, and negative pressure leak tests to guarantee a leak-free design.
-Robust and Durable: Constructed with high-quality insulation systems and corrosion-resistant materials, ensuring a lifespan of 30 years or more. Equipped with advanced cooling systems to maintain optimal operating temperatures under heavy loads.
-Environmental Adaptability: Features anti-fouling reinforced bushings for reliable operation in heavy pollution environments. Designed to withstand extreme weather conditions, from high temperatures to freezing climates.
-Ease of Maintenance: Includes oil level indicators, pressure relief valves, and temperature monitoring systems for simplified maintenance and reduced downtime.
-Global Compliance Complies with IEC, IEEE, and other international standards, ensuring compatibility and reliability for global applications.
SS(F)11-220kV 31500-240000kVA Three Phase Three Winding Non Excitation Voltage Regulating Transformer
Capacity
kVa |
Voltage Ratio & Tapping Range |
Vector
Group |
No Load Loss |
Load Loss |
No Load Current |
Impedance |
HV |
MV |
LV |
11 |
Stepup |
Setdown |
31500 |
110±2X2.5%
115±2X2.5%
121±2X2.5% |
115
121 |
6.6
10.5
21
36
37
38.5 |
YNyn0
d11 |
20 |
111 |
17 |
HV-MV
12-14
HV-LV
8-12
MV-LV
14-18 |
HV-MV
8-10
HV-LV
28-334
MV-LV
18-24 |
40000 |
23 |
136 |
20 |
50000 |
27 |
161 |
24 |
63000 |
32 |
190 |
28 |
90000 |
40 |
262 |
36 |
120000 |
49 |
323 |
44 |
150000 |
58 |
384 |
52 |
180000 |
67 |
439 |
60 |
240000 |
79 |
545 |
71 |
240000 |
79 |
5445 |
71 |





Q1: Are you a trading company or a manufacturer?
A:Pino Electric Technology Co.,Ltd is a production and sales-oriented
enterprise focusing on the production of power equipment and integrating design, R&D, manufacturing and technical services.
Q2: What are your company's main products?
A:High and low-voltage switchgear, ring main units (RMUs), distribution boxes, prefabricated substations, distribution transformers, integrated RMUs with primary and secondary equipment (using environmentally friendly gases), SMC distribution boxes, and measurement transformers.
Q3: How do I buy your products?
A:You can order online through our website or contact our sales team for more product information and quotation. We support multiple payment methods and provide global shipping services.
Q4: How do you ensure product quality?
A:We strictly abide by international standards and quality management systems. All products are strictly tested and inspected before leaving the
factory. We also provide product quality assurance periods to ensure that the products you purchase meet your expected performance.
Q5: Do you provide customized services?
A:Yes, we can provide customized services according to the specific needs of our customers. Whether it is product specifications, designs or features, our technical team can work with you to develop solutions that meet your needs.
Q6: Can we visit your factory?
A:Of course! We welcome customers to visit our production facilities to learn about our manufacturing processes and quality control measures. Please make an appointment in advance and we will arrange a professional team to receive and accompany you during the visit. lf you have any other questions or need more information, please feel free to contact us. We are committed to providing you with the best service.