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 220kV oil-immersed power transformer handles large amounts of electricity. Its core rating is 200 MVA. It connects to high-voltage networks operating at 220 kilovolts. Oil surrounds the core and windings. This oil cools the transformer and provides insulation. The design specifically targets low energy loss during operation. This saves power and reduces operating costs significantly.

The transformer uses high-grade electrical steel for its core. This steel minimizes energy wasted as heat. The core is carefully stacked and clamped. This construction prevents vibration and noise. The windings are made from copper conductors. Copper offers excellent conductivity. The windings are arranged precisely. This arrangement ensures stable voltage output and good short-circuit strength. The entire core and coil assembly sits inside a strong steel tank. This tank holds the insulating oil.

High-voltage bushings connect the windings to the overhead lines. These bushings are designed for reliable 220kV service. They seal tightly against the tank. The transformer includes essential accessories. It has an oil conservator tank. This tank allows the oil to expand and contract with temperature changes. A silica gel breather keeps moisture out of the oil. A pressure relief device protects the tank from internal overpressure. Gauges monitor oil level and temperature constantly.

The low-loss design achieves high efficiency. Less energy is converted into wasted heat. This translates directly to lower electricity bills for the owner. The transformer operates reliably under demanding conditions. It handles the electrical stresses of the 220kV grid. Its robust construction ensures a long service life. Proper maintenance keeps it running efficiently for decades. This transformer is a key component for transmitting bulk power efficiently and reliably.

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

This 220kV oil-immersed low loss 200 MVA power transformer handles major electricity jobs. It steps up or steps down very high voltage efficiently. It’s built tough for demanding environments.

You find this transformer core at key points in the power grid. Big electrical substations use it. It connects different voltage levels within the grid. It helps move bulk power over long distances effectively. Power plants need it too. It boosts generator voltage for transmission. This gets the power onto the high-voltage lines.

Large industrial complexes rely on this transformer. Factories needing huge amounts of power use it. It provides stable, high-capacity supply. Mines and big processing plants are typical users. It links them directly to the transmission network.

The “low loss” feature is crucial. It wastes less energy as heat. This saves significant operating costs over time. It also reduces strain on cooling systems. This design improves overall efficiency for the grid. It helps utilities manage power better.

The oil-immersed construction provides excellent insulation. It also cools the core and windings effectively. This design ensures stable operation under heavy load. It handles the high voltage safely. The transformer includes protective devices. These monitor oil levels and temperature. They guard against internal faults.

Reliability is paramount. This transformer is built for continuous duty. It offers long service life with proper maintenance. Its robust design minimizes unexpected downtime. This is vital for critical power infrastructure.

The 200 MVA capacity means it delivers substantial power. It meets the needs of large-scale users and grid operators. The combination of high voltage, large capacity, and low loss makes it essential. It supports stable and efficient electricity delivery across wide areas. This transformer is a fundamental component for modern power systems.

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?
This transformer moves electricity over long distances. It steps down high voltage power from 220,000 volts to safer levels for local grids. Its job is to handle large amounts of electricity efficiently. It connects major transmission lines to distribution networks.

Why use oil inside it?
The transformer tank is filled with special cooling oil. This oil absorbs heat generated during operation. It stops the internal parts from getting too hot. The oil also provides electrical insulation. This prevents dangerous short circuits inside the unit. It keeps everything running safely and reliably.

What does “200 MVA” mean?
200 MVA is the transformer’s power capacity. MVA stands for Mega Volt-Amperes. It shows the maximum load the transformer can handle continuously. This unit can manage 200 million volt-amperes. It is built for heavy-duty use in substations feeding large areas or industries.

What makes it “Low Loss”?
“Low Loss” means the transformer wastes very little power. Its core uses advanced magnetic steel. Its windings are designed precisely. This reduces energy lost as heat during voltage transformation. Less wasted energy means lower operating costs. It also means better efficiency over its lifetime.

How much maintenance does it need?
Regular checks are essential. Technicians monitor oil levels and quality. They test insulation strength. They inspect bushings, connections, and cooling systems. Major internal work requires special equipment and trained crews. Good maintenance prevents failures and extends its service life significantly.