220kv Oil-immersed Low Loss 200 Mva Power Transformer

Overview of 220kv Oil-immersed Low Loss 200 Mva Power 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 220kv Oil-immersed Low Loss 200 Mva Power 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 220kv Oil-immersed Low Loss 200 Mva Power Transformer

This transformer handles high voltage power transmission. Its main rating is 200 MVA. It works with a primary voltage of 220 kilovolts. The secondary voltage is designed for your specific network needs. We use high-quality electrical steel for the core. This special steel cuts down wasted energy significantly. The transformer operates submerged in insulating oil. This oil cools the unit and provides electrical insulation. Cooling happens naturally through radiators attached to the tank. Fans might be added for extra cooling capacity if required.

Energy loss is a key focus. The no-load loss is very low. This saves power when the transformer is energized but not carrying load. The load loss is also minimized. This saves power during actual operation. Together, these low losses boost overall efficiency. They reduce operating costs substantially over the transformer’s long life.

The impedance value is carefully set. This value controls fault current levels during short circuits. It protects the transformer and the wider grid. The insulation levels are robust. They withstand standard power system surges and lightning strikes. The main tank is welded steel. It ensures a leak-proof oil container. Core and coils stay submerged in oil. This prevents insulation damage. Accessories include a conservator tank. This conservator allows oil volume changes with temperature. A silica gel breather keeps moisture out of the oil. Gas and temperature monitoring devices provide vital protection. They detect internal faults early. The transformer undergoes strict factory tests. These tests confirm it meets all performance and safety standards.

Applications of 220kv Oil-immersed Low Loss 200 Mva Power Transformer

This 220kV oil-immersed low loss 200 MVA power transformer handles large-scale electricity transmission. It changes voltage levels efficiently. High voltage like 220kV moves power over long distances with less energy loss. The transformer steps this voltage down for safer local distribution. It handles a massive 200 MVA capacity. This makes it suitable for major power demands.

Minimizing energy waste is crucial. The “low loss” design achieves this. Special core materials and optimized construction reduce wasted energy significantly. This saves money. It also reduces environmental impact over the transformer’s long life. The transformer uses oil for cooling and insulation. Oil absorbs heat generated during operation. This keeps internal temperatures stable. The oil also provides excellent insulating power. This prevents dangerous electrical shorts. The robust tank protects the core and windings. This ensures reliable performance in tough conditions.

These transformers are essential backbone equipment. They connect big power plants to the grid. Think coal plants, nuclear stations, or large hydroelectric dams. They step up the generated voltage for efficient long-distance travel. They also connect different parts of the high-voltage transmission network itself. They link separate grids or manage power flow between regions. Renewable energy projects need them too. Large solar farms or wind farms often sit far from cities. These transformers step up the collected power. They send it efficiently into the main transmission lines heading to population centers. Major industrial complexes require huge power. Steel mills, chemical plants, large factories rely on this size transformer. It delivers the necessary high-voltage power reliably. Dense urban areas need substations packed with power. This transformer feeds those substations. It reliably supplies the massive electricity needs of cities and towns. Its high efficiency and large capacity are vital here.

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 220kv Oil-immersed Low Loss 200 Mva Power 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 220kv Oil-immersed Low Loss 200 Mva Power Transformer

What does this transformer do?
It steps down high voltage electricity. The input is 220,000 volts. The output voltage depends on the customer’s needs. It handles large amounts of power, up to 200 million volt-amps. This power level suits major substations feeding cities or industries.

Why is it called “Low Loss”?
It wastes less energy as heat. Special core steel reduces energy lost in the transformer’s magnetic core. Careful design cuts losses caused by electrical currents flowing through the windings. Lower losses save money on electricity over its lifetime. It also runs cooler.

Is this transformer reliable?
Yes, it’s built for tough conditions. The oil provides excellent insulation and cooling. The tank is strong steel, welded for a tight seal. Internal components withstand high electrical stress and temperature changes. Rigorous testing happens before it leaves the factory. This ensures decades of dependable service.

Where do we install it?
It needs a solid foundation outdoors. The site must handle its large size and heavy weight, including the oil. Enough space is vital for safety and maintenance access. Good ventilation helps keep it cool. Protection from weather extremes and flooding is important. Follow all local electrical codes.

What maintenance does it need?
Regular checks are essential. Technicians monitor oil levels and test oil quality often. They inspect bushings, connections, and cooling systems. Look for leaks or unusual noises. Comprehensive maintenance involves internal inspections and electrical tests by trained experts. Preventative upkeep avoids unexpected failures.