Oil Immersed Three Winding Transformers for Industrial Distribution
The oil-filled transformer, which employs transformer oil as both an insulating and cooling agent, ensures the insulation and heat dissipation of its core components, including the iron core and windings, by submerging them in the oil.
Product Details：Oil-immersed three three-winding transformers
The oil-immersed transformer stands out for its ability to adapt to various loads and ease of maintenance. Its effective temperature control within the windings minimizes energy wastage, enhancing its operational efficiency and ultimately delivering exceptional power transmission performance.
PARAMETER：
Model | OSFPZ-300000/400 | OSFPSZ-315000/400 | SFZ-4380000/420 |
Capacitance ratio (MVA) | 300/300/100 | 315/315/105 | 438/438 |
Ratio-voltage (kV) | 400±8×1.25%/115/10.5 | 400±8×1.25%/220/33 | 420(-10，+6)×1.25%/20 |
voltage regulation mode | Variable magnetic flux | Constant magnetic flux | Constant magnetic flux |
Open circuit losses (kW) | 78.01 | 55.96 | 149.56 |
Load losses (kW) | 581.95 | 430.88 | 779.93 |
Impedance voltage (%) | 14.3 (High-Medium) | 12.5 (high-medium) / 45 (high-low) / 30 (medium-low) | 14.31 |
Oil oil temperature rise (K) | 37.1 | 34.2 | 30.7 |
Maximum Winding temperature rise (K) | 56 | 47.3 | 47.5 |
No-load noise (dB (A)) | 64.7 | 60 | 67 |
Measured local level (pC) | 80 | 100 | 90 |
1. Character
（1）Adapt to harsh environments
Oil immersed transformers are suitable for harsh working environments such as high temperature, humidity, and strong corrosion, and have strong toughness and adaptability.
（2）Low noise
The noise generated by oil immersed transformers during operation is relatively low, resulting in less noise interference to the surrounding environment. This is mainly due to its oil immersed cooling technology, which has excellent natural cooling performance of oil. Therefore, it can effectively reduce the temperature inside the transformer and reduce noise.
（3）Long lifespan
The lifespan of oil immersed transformers is usually longer, mainly due to their good insulation and heat dissipation performance, as well as the protection of the iron core and winding by oil. These characteristics have made oil immersed transformers widely recognized and applied in practical applications.
2. Structure
The three-phase generator consists of two parts:stator and rotor.Three symmetrical windings are placed on the stator(three sets of windings are exactly the same,placed at a space difference of 120°electrical angle);magnetic poles are placed on the rotor,and the magnetic poles are equipped with excitation windings.
CASES
SERVICE
Professional Quality
Professional service contributes value, detailed service moves customers, and continuously creates value for customers; Customer feedback is our best gift. Recognizing customer needs, focusing on customer experience, and innovating and extending services are the inexhaustible driving forces for our sustainable development.
Service Purpose
Improve the service system, strengthen pre-sales, in sales, and after-sales services, and promptly help customers solve various problems that arise during the use of goods, so as to make customers feel satisfied.
FAQ：
Q: What's the process to form a partnership with your firm?
A: Should you be interested in a partnership, kindly send us an inquiry outlining your intentions, and we'll revert with a meeting to discuss the specifics of our collaboration.
Q: What's your company's core business?
A: Our company handles international trade, specializing in buying, selling, and managing the logistics of imported and exported goods.
Q: Do you have your own global transportation network?
A: We offer a comprehensive range of transportation services covering all major modes of transportation including road, rail, water and air freight. Our team of experts provides the most efficient and cost-effective transportation solutions for our clients' specific needs. Our extensive global network ensures that goods arrive at their final destination in a timely and secure manner.
Right from the start of picking raw materials, we’ve been on a green path. We use natural vegetable oils as base ingredients—think non-GMO rapeseed—sourced from green, sustainable suppliers. Our plant-based formula gives the product strong biodegradable qualities: it fully breaks down in nature in just three months, leaving no burden on the planet. This stands in sharp contrast to traditional mineral oils, which can take years, even decades, to degrade. Third-party authoritative tests show that in multiple simulated spill trials, soil microbial activity in areas with our product returned to normal within 3 weeks, and surrounding vegetation grew lush and lively again after a month.
