Oil-Submerged Power Transformers
The transformer, a type of static electrical apparatus, harnesses the principles of electromagnetic induction to elevate or diminish the input voltage, transforming it into an AC voltage output of identical frequency. This adaptability caters to the demands of high-voltage power transmission, low-voltage distribution, and diverse applications. Across modern industries, agriculture, scientific research, and numerous electrical devices, the transformer finds ubiquitous use as a versatile source of electrical energy, tailored to meet the varying voltage requirements.
Product Details：Oil-Submerged Power Transformers
Presently, transformers are indispensable in a myriad of essential locations, spanning factories, colossal high-rises, bustling commercial centers, grand theaters, hospitals, hotels, intricate tunnel systems, subways, underground energy stations, rigorous testing facilities, transport terminals, shipping docks, and air travel hubs. They cater to the energy demands of these locations, facilitating the smooth operation of our societal fabric.
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. Focus on product quality
The aesthetics of premium products should exhibit no signs of corrosion, remain unscathed, boast a uniformly applied paint coat with vibrant hues. As for the manufacturing intricacies, transformer windings must be impeccably aligned with precise contact distribution, firmly secured, and reliable. Coils should be embedded with optimal spacing between them, while the iron core must be adequately fastened, pristine, and devoid of impurities. Moreover, every component of the linkage system should be steadfast and reliable.
Technical documentation must be thoroughly scrutinized for completeness, encompassing the factory serial number, inspection certificate details, user manual, and other pertinent information, pivotal in comprehending the product's performance capabilities and quality standards.
2. Selection Points
Ascertain the transformer's rated capacity and voltage level by aligning with practical demands. This assessment hinges on the cumulative capacity of power-consuming devices, load dynamics, and anticipated expansion necessities. Additionally, contemplate the transformer's intended usage—whether as a pivotal system transformer or a dedicated equipment distribution transformer—as performance standards can diverge across applications.
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