Product Introduction
The S9 Series Three-phase Oil-immersed Power Transformer is a high-performance electrical equipment designed for medium to large-scale power transmission and distribution systems. Covering a capacity range of 50KVA to 2500KVA, it operates with a high voltage rating of 33KV~38.5KV and a low voltage output of 6~10.5KV, making it a versatile solution for industrial plants, power grids, and commercial complexes.
Core Specifications & Key Features
- As a dedicated 33kv power transformer, it excels in stabilizing power flow between high-voltage 33KV~38.5KV grids and low-voltage 6~10.5KV end-users, ensuring efficient energy conversion with minimal loss.
- The oil-immersed design enhances heat dissipation and insulation performance, enabling reliable operation even in harsh environmental conditions such as high temperature or humidity.
- Integrated with advanced core and winding technologies, the transformer achieves low no-load loss and load loss, complying with international energy efficiency standards for long-term cost savings.
- Complementary to the 33kv voltage transformer in power measurement and protection systems, this unit provides stable voltage regulation to safeguard downstream equipment from voltage fluctuations.
Application Scenarios
Ideal for power grid expansion, industrial production lines, data centers, and infrastructure projects, the S9 Series transformer delivers consistent performance in both indoor and outdoor installations. Its robust structure and corrosion-resistant materials ensure a long service life, while easy maintenance features reduce operational downtime.
Whether used as a standalone 33kv power transformer or integrated with a 33kv voltage transformer for comprehensive power management, this series meets the strict requirements of modern power systems for safety, efficiency, and reliability.
Technical Parameters
| Rated Capacity | Customizable from 50KVA to 2500KVA based on customer requirements |
| High Voltage Side Voltage | 33-38.5KV |
| Low Voltage Side Voltage | 0.4KV |
| Frequency | 50Hz |
| Phase Number | Three-phase |
| Connection Group | Dyn11/Yyno |
| Insulation Level | Class A |
| Temperature Rise | ≤65K |
| Cooling Method | ONAN (Oil Natural Air Natural) |
Functional Advantages
As a high-performance 33kv power transformer, the S9 Series Three-phase Oil-immersed Power Transformer integrates advanced technologies to deliver exceptional functionality, reliability, and efficiency for critical power transmission and distribution scenarios. Its functional advantages are tailored to meet the demands of modern power systems, complementing the role of the 33kv voltage transformer in comprehensive grid management.
- a. Superior Energy Efficiency
Adopts low-loss silicon steel core and optimized winding structure, achieving ultra-low no-load and load losses that exceed international energy efficiency standards.
Reduces long-term operational costs by minimizing energy waste, making it an eco-friendly choice for continuous-duty applications.
- b. Stable Voltage Regulation & Compatibility
Delivers precise voltage conversion between 33KV~38.5KV (HV) and 6~10.5KV (LV), ensuring consistent power supply for sensitive equipment and industrial loads.
Works seamlessly with 33kv voltage transformer systems to enhance grid stability, providing accurate voltage monitoring and protection against fluctuations or surges.
- c. Robust Heat Dissipation & Durability
Oil-immersed insulation design enables efficient heat transfer, allowing reliable operation even at full load or in high-temperature environments.
High-quality transformer oil and corrosion-resistant tank materials extend service life, withstanding humidity, dust, and harsh outdoor conditions.
- d. Strong Overload Capacity
Engineered to handle short-term overloads (up to 120% of rated capacity) without performance degradation, adapting to sudden changes in power demand.
Reinforced winding insulation and core clamping structure enhance mechanical strength, resisting electrical and thermal stress during peak operation.
Manufacturing Process
- High-Quality Materials: Selected high-quality materials to ensure quality.
- Precision Processing: Exquisite craftsmanship and high precision.
- Strict Testing: Multiple testing procedures ensure reliable quality.
Customer Case
João Silva, the procurement manager of Luz Energia Soluções, a well-known power engineering company in Brazil, discovered an advertisement for Jinshanmen Technology Co., Ltd. while browsing industry-related websites in March 2022. Jinshanmen Technology, located in the beautiful city of Lishui in Zhejiang Province, China, has 30 years of professional experience in producing and selling various transformers. João was very interested in the company's S9 series three-phase oil-immersed power transformers, especially their 33KV high voltage and 6-10.5KV low voltage specifications, and the customizable features that perfectly met his needs.
After contacting the company's sales team via email, both parties engaged in in-depth technical discussions. The professional team at Jinshanmen Technology thoroughly understood the power project requirements of João's company and provided customized solutions based on the actual situation. After confirming the feasibility of the solution and the high quality of the product, João decided to cooperate with Jinshanmen Technology. Eventually, the batch of transformers was successfully delivered and put into use, providing stable and reliable support for local power facilities in Brazil.
Common Professional FAQs
Q: How is the insulation performance of the transformer ensured?
Q: What should be noted when operating in a high-humidity environment?
