UL 100kVA 250kVA 500kVA 750kVA 1000kVA 1500kVA 2550kVA 3000kVA 5000kVA Oil Immersed Transformer

Overview of UL 100kVA 250kVA 500kVA 750kVA 1000kVA 1500kVA 2550kVA 3000kVA 5000kVA Oil Immersed Transformer

An oil-immersed transformer is a type of electrical transformer where the core and windings are submerged in an insulating oil. This oil serves two primary functions: it acts as a highly effective insulator between conductive parts and as a coolant to dissipate heat generated during operation. These transformers are robust, reliable, and highly efficient, making them the standard choice for high-voltage power distribution and transmission networks, typically installed outdoors in substations.

Features of UL 100kVA 250kVA 500kVA 750kVA 1000kVA 1500kVA 2550kVA 3000kVA 5000kVA Oil Immersed Transformer

• Effective Cooling: The insulating oil efficiently absorbs heat from the core and windings and transfers it to the radiator fins, allowing for natural or forced circulation and higher overload capacity.
• Superior Insulation: The oil provides much better dielectric strength than air, allowing for a more compact design for a given voltage rating and protecting against short circuits.
• Robust Construction: Designed for long-term, reliable operation (often 25-30 years) in harsh outdoor environments.
• Overload Capacity: Can handle temporary power overloads better than dry-type transformers due to the thermal mass and cooling properties of the oil.
• Protection System: Equipped with a conservator tank (to allow for oil expansion), breather (to absorb moisture from air), and protective relays (Buchholz relay) for internal fault detection.
• Cost-Effective: Generally more economical for high-power applications compared to dry-type transformers.

Specifications of UL 100kVA 250kVA 500kVA 750kVA 1000kVA 1500kVA 2550kVA 3000kVA 5000kVA Oil Immersed Transformer

These UL-certified oil-immersed transformers handle capacities from 100kVA up to 5000kVA. They are built tough for demanding industrial and utility use. The core uses high-grade electrical steel. Copper windings are common for efficiency. The entire assembly sits inside a welded steel tank filled with high-quality insulating oil. This oil provides essential cooling and insulation.

The oil circulates naturally or with pumps. Larger units often need forced cooling. Radiators or cooling fins attach to the tank. Heat transfers from the windings to the oil. The oil then releases heat to the air through these surfaces. This keeps operating temperatures safe and stable.

Strong insulation systems separate the windings and core. The oil enhances this dielectric strength. This design ensures reliable electrical isolation. It prevents internal short circuits. UL standards guarantee safety and performance under fault conditions. These transformers meet IEEE standards too. They are built for long service life with minimal upkeep.

Accessories include conservator tanks for oil expansion. Pressure relief devices protect against internal faults. Temperature gauges monitor oil and winding heat. Buchholz relays detect gas from minor internal arcing. Optional features include remote monitoring systems. Tap changers adjust voltage output manually or automatically.

These units step voltage up or down efficiently. They are ideal for substations, factories, mines, and large buildings. Their robust construction withstands harsh environments. The oil insulation handles high voltage stresses well. Maintenance involves checking oil levels and quality. Regular inspections ensure continued reliability. They offer a dependable solution for heavy power distribution needs.

Applications of UL 100kVA 250kVA 500kVA 750kVA 1000kVA 1500kVA 2550kVA 3000kVA 5000kVA Oil Immersed Transformer

Oil-immersed transformers are tough workhorses. They handle electricity distribution across many power levels. Units from 100kVA to 5000kVA are common. These transformers use oil for cooling and insulation. This makes them reliable and lasts long. They are built for demanding places.

Smaller transformers, like 100kVA or 250kVA, fit well in buildings. They power offices, shops, and small factories. They step down voltage safely for everyday equipment. A 500kVA unit might serve a larger store or a small apartment block. It provides stable power for lights, lifts, and heating systems. A 750kVA transformer could support a medium factory floor or a hospital wing. It handles heavier machinery loads reliably.

Industrial sites need more power. A 1000kVA or 1500kVA transformer is often used here. These units power large motors, pumps, and production lines in factories. Mines and processing plants rely on them. They manage the significant energy demands of heavy equipment. Their oil insulation handles heat well under constant use.

Big industrial complexes and utilities use the largest sizes. Transformers rated 2550kVA, 3000kVA, and 5000kVA are crucial here. They serve as main substation units. They feed entire industrial parks or large sections of a city grid. Power generation plants use them to step up voltage for transmission. They also step down high voltage for local distribution networks. These large units manage massive power flows efficiently. Their robust oil-filled design ensures continuous operation in critical infrastructure. They are essential for large-scale power delivery.

Company Profile

PDDN Photoelectron Technology Co., Ltd. is one of the leading enterprises in power electronics technology and power products, which is fully involved in developing solar inverters， transformers, voltage regulators, distribution cabinets, thyristors， modules， diodes， heaters, and other electronic devices or semiconductors. We will be committed to providing users with high-quality, efficient products and considerate service.

It accepts payment via Credit Card, T/T, West Union, and Paypal. PDDN will ship the goods to customers overseas through FedEx, DHL, by sea, or by air. If you want high-quality UL 100kVA 250kVA 500kVA 750kVA 1000kVA 1500kVA 2550kVA 3000kVA 5000kVA Oil Immersed Transformer, please send us inquiries; we will be here to help you.

Payment Methods

L/C, T/T, Western Union, Paypal, Credit Card etc.

Shipment

By sea, by air, by express, as customers request.

Storage Conditions

1) Store in a dry environment at room temperature.

2) Avoid damp and high temperature.

3) Use immediately after opening the inner packing bag.

5 FAQs of UL 100kVA 250kVA 500kVA 750kVA 1000kVA 1500kVA 2550kVA 3000kVA 5000kVA Oil Immersed Transformer

What makes UL transformers safe?
UL certification means strict safety testing. These transformers meet high standards. They prevent fires and electric shock. Oil fills the tank. This insulates and cools the parts. It makes them safer for people and property. You can trust the UL mark.

Where do I install these transformers?
Put them outdoors or in ventilated buildings. They need space for air to move. Keep them away from walls and other equipment. This helps them stay cool. They handle weather well. Mount them on a solid, level pad. Always follow local codes.

How often do they need maintenance?
Check the oil level every year. Look for leaks too. Test the oil quality every 3-5 years. This checks insulation strength. Clean the outside surfaces regularly. Keep vents clear. Schedule professional inspections periodically. This keeps them running reliably.

How long do these transformers last?
They are built tough. Expect 25 to 40 years of service. Good installation matters. Regular maintenance matters more. Protect them from severe overloads. Keep them clean and dry. Handle them correctly. This ensures a long working life.

Can I get special features?
Yes. We offer options. You can choose different voltage taps. You can choose special enclosures. You can get extra protection like lightning arresters. Temperature gauges are available. We can adjust designs for your site. Tell us your specific needs. We work with different setups.