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PRODUCTS
S22-30~2500/10 three-phase double-winding non-excited oil-immersed transformer (electrical steel strip)
Classification:
Keywords: dry-type transformer series | oil-immersed power transformer series | special transformer series | box-type transformer series
Immediate ConsultationProduct Introduction
The fully sealed power transformer eliminates the oil storage tank, using the corrugated oil tank body’s fins as a heat dissipation cooling element. At the same time, it expands and contracts with the increase and decrease of transformer oil, isolating the interior of the transformer from the atmosphere, preventing oil deterioration and insulation from moisture and aging, thus enhancing operational reliability. The core is made of high-quality cold-rolled silicon steel sheets, effectively improving the distribution of magnetic flux density within the core, reducing noise and losses. The coils are wound with high-strength enameled wire (or paper-wrapped wire), in a cylindrical (or disc) structure, with uniform winding distribution and reasonable insulation structure, providing strong short-circuit resistance. All fasteners used in the oil tank are equipped with lock nuts to ensure they do not loosen during long-distance transportation. The surface of the oil tank is treated with phosphating and coated with three-proof paint (moisture-proof, mildew-proof, salt spray-proof), widely used in harsh environments such as metallurgy, mining, and petrochemicals.
Model Description
Normal Operating Conditions
Altitude: ≤1000m
Maximum ambient temperature: +40℃; Maximum monthly average temperature: +30℃; Maximum annual average temperature: +20℃; Minimum temperature: -25℃
Power supply requirements: Approximate sine wave, three-phase roughly symmetrical.
Installation location: Indoor or outdoor environment without obvious dirt. Note: Transformers used under special conditions must be specified at the time of product ordering.
Technical Performance Parameters
| Rated Capacity (kVA) |
Rated Voltage (kV) |
Losses (W) |
Short Circuit Impedance (%)) |
||||
| High Voltage (kV) |
Tap Range (kV) |
Low Voltage (kV) |
No Load | Load | |||
| Dyn11 /Yzn11 |
Yyn0 | ||||||
| 30 | 10 | ±2×2.5% | 0.4 | 65 | 455 | 430 | 4.0 |
| 50 | 80 | 655 | 625 | ||||
| 63 | 90 | 785 | 745 | ||||
| 80 | 105 | 945 | 900 | ||||
| 100 | 120 | 1140 | 1080 | ||||
| 125 | 135 | 1360 | 1295 | ||||
| 160 | 160 | 1665 | 1585 | ||||
| 200 | 190 | 1970 | 1870 | ||||
| 250 | 230 | 2300 | 2195 | ||||
| 315 | 270 | 2760 | 2630 | ||||
| 400 | 330 | 3250 | 3095 | ||||
| 500 | 385 | 3900 | 3710 | ||||
| 630 | 460 | 4460 | 4.5 | ||||
| 800 | 560 | 5400 | |||||
| 1000 | 665 | 7415 | |||||
| 1250 | 780 | 8640 | |||||
| 1600 | 940 | 10440 | |||||
| 2000 | 1085 | 13180 | 5.0 | ||||
| 2500 | 1280 | 15270 | |||||
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Longxiang has always relied on innovation-driven and open cooperation, upholding the enterprise spirit of "diligence, preciseness, truth-seeking and pragmatism", and has won the support and affirmation of more and more partners.
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Longxiang takes innovation drive as the core power, relies on the technology research and development and management system as the support, focuses on the research and development and production of transformers, various box-type transformers and substations, and high and low voltage electrical appliances. It has obtained a number of industry certifications and has held a number of patents.
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