Overview of High Voltage Main Power Transformer

50KVA, 100KVA, 200KVA, 500KVA, 1000KVA, 2000KVA, 11kv, 33kv Step-down, 400v, 240v Oil-immersed Transformer is a device used to convert high voltage to lower voltage. It is critical in power systems, especially high-voltage transmission and distribution networks. The primary function of the high-voltage main power transformer is to ensure the stable operation of the power system while providing the required voltage for various power equipment.

Functional Principle of 50KVA, 100KVA, 200KVA, 500KVA, 1000KVA, 2000KVA, 11kv, 33kv Step-down, 400v, 240v Oil-immersed Transformer

• Voltage conversion: The most basic function of a high-voltage main power transformer is to perform voltage conversion. It reduces the high voltage in the power system to the voltage level required by the user. By changing the turn ratio of the primary side (high-voltage side) and secondary side (low-voltage side) coils, voltage rise and fall can be achieved.
• Impedance matching: Transformers can also play a role in impedance matching. For different loads, their impedance values also vary. Through the transformer’s voltage transformation effect, the impedance of the load can be matched with the impedance of the power supply system, thereby ensuring stable current transmission.
• Voltage regulation: By changing the number of turns of the primary side coil or the number of turns of the secondary side coil, the output voltage can be adjusted. In the power system, transformers are used to achieve segmented voltage control to meet the electricity needs of different users and equipment.
• Filtering function: Some particular types of high-voltage main power transformers also have a filtering function, which can filter out harmonics and reactive power components in the power supply and improve the quality of the power supply.

Specifications of 50KVA, 100KVA, 200KVA, 500KVA, 1000KVA, 2000KVA, 11kv, 33kv Step-down, 400v, 240v Oil-immersed Transformer

These oil-immersed transformers reliably step down high voltage electricity. They take 11kV or 33kV power from the grid. They deliver safe, usable low voltage power. Outputs are typically 400V or 240V. This makes them perfect for factories, buildings, and large facilities needing substantial power.

We offer a wide range of capacities. You can choose from 50KVA, 100KVA, 200KVA, 500KVA, 1000KVA, up to 2000KVA models. Each size handles different power loads. This ensures you get the right transformer for your specific energy demands.

The core and windings sit inside a strong steel tank. This tank is filled with special insulating oil. The oil does two important jobs. It cools the transformer parts during operation. It also provides excellent electrical insulation. This design is proven and very durable.

These transformers use natural cooling methods. Smaller units (like 50KVA to 200KVA) often use the ONAN method. This means Oil Natural, Air Natural. Heat escapes naturally from the tank surface. Larger units (500KVA and above) usually have cooling radiators or tubes. These increase the surface area for better heat dissipation. Fans might be added for extra cooling on the biggest models if needed.

Construction focuses on reliability. The core uses high-grade, low-loss silicon steel laminations. Copper or aluminum windings are standard. Robust bushings provide secure high and low voltage connections. The tank is sealed tight to keep the oil clean and dry. A conservator tank with breather is common. This allows the oil to expand and contract safely. Pressure relief devices are fitted for safety. An oil level gauge shows the oil quantity clearly. Most units include temperature monitoring too.

Applications of 50KVA, 100KVA, 200KVA, 500KVA, 1000KVA, 2000KVA, 11kv, 33kv Step-down, 400v, 240v Oil-immersed Transformer

Small shops and homes often use 50KVA or 100KVA oil transformers. These step down higher voltage power like 11kV to safer 240V or 400V. This powers lights, machines, and tools reliably. They are tough and handle daily use well.

Factories need bigger power. A 200KVA transformer is common here. It connects to 11kV lines. It delivers the 400V needed for heavy machinery and production lines. This size keeps things running smoothly in medium workshops.

Larger industrial sites demand more power. A 500KVA unit steps down 11kV or even 33kV power. It supplies 400V to whole factory sections. Think big assembly lines or processing plants. This size handles significant electrical loads efficiently.

Serious power needs require serious transformers. 1000KVA and 2000KVA units are for heavy industry. They manage 33kV incoming power. They step it down to 400V for massive operations. Steel mills, big chemical plants, large hospitals use these. They power entire facilities without a hitch.

These oil-immersed transformers are built for long life. They cool effectively in their oil bath. They handle tough conditions. They are reliable for critical power supply everywhere. Every size serves a clear purpose. Small units support local needs. Big units drive major industry. The voltage step-down is essential. It makes high-voltage grid power usable and safe for everyday equipment.

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 50KVA, 100KVA, 200KVA, 500KVA, 1000KVA, 2000KVA, 11kv, 33kv Step-down, 400v, 240v 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 50KVA, 100KVA, 200KVA, 500KVA, 1000KVA, 2000KVA, 11kv, 33kv Step-down, 400v, 240v Oil-immersed Transformer

Here are five common questions about oil-immersed transformers (50KVA to 2000KVA, 11kV/33kV to 400V/240V):

What exactly does this transformer do? It takes high voltage electricity from the power lines (11,000 volts or 33,000 volts). It steps this voltage down to safer, usable levels (400 volts or 240 volts). This makes the power suitable for factories, buildings, or large equipment.

Why use oil inside it? The oil is crucial. It cools the transformer parts during operation. It prevents overheating. The oil also acts as powerful insulation. It stops electrical sparks or short circuits between the high-voltage parts inside the tank.

How big of a transformer do I need? The size depends entirely on your power demand. Smaller units (like 50KVA or 100KVA) often power single buildings or smaller factories. Larger units (500KVA, 1000KVA, 2000KVA) handle heavy industrial machinery or entire complexes. Match the KVA rating to your total electrical load.

Is this transformer safe? Yes. These transformers are built for safety and reliability. They include features like pressure relief devices. These vent internal pressure safely if a serious fault occurs. The sturdy steel tank contains the oil and internal components securely. Proper installation and grounding are essential.

What maintenance is required? Regular checks are important. Monitor the oil level in the sight glass. Look for leaks around the tank and connections. Schedule periodic testing of the oil’s insulating quality. Keep the transformer exterior clean and free of debris. Follow the manufacturer’s specific maintenance schedule.