Oil Immersed Transformer 400KVA Three-phase Oil Immersed Transformer with 30kv Input Voltage

Overview of Oil Immersed Transformer 400KVA Three-phase Oil Immersed Transformer with 30kv Input Voltage

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 Oil Immersed Transformer 400KVA Three-phase Oil Immersed Transformer with 30kv Input Voltage

• 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 Oil Immersed Transformer 400KVA Three-phase Oil Immersed Transformer with 30kv Input Voltage

This transformer handles power distribution. It steps down higher voltages to usable levels. The core rating is 400 kilovolt-amperes. This suits industrial sites or utility substations. It uses three-phase power. This is standard for heavy machinery.

The input voltage reaches 30 kilovolts. The output voltage is adjustable. Common outputs are 400V or 415V. Frequency compatibility is 50Hz or 60Hz. This depends on regional standards. The unit fits most power grids globally.

The core uses high-grade silicon steel laminations. This minimizes energy losses. Copper windings provide excellent conductivity. Windings are insulated thoroughly. The entire assembly sits inside a welded steel tank. This tank is filled with insulating mineral oil.

The oil cools the transformer effectively. It absorbs heat from the core and windings. The oil circulates naturally. Heat rises, moves to the tank walls, then cools. Radiators mounted on the tank increase the cooling surface area. This design prevents overheating during operation.

The tank is robust and leak-proof. It withstands weather and pressure changes. A conservator tank connects to the main tank. It allows oil volume changes with temperature. A silica gel breather keeps moisture out. This protects the insulating oil quality.

Safety features are integrated. A Buchholz relay detects internal faults. It triggers an alarm or shutdown. Pressure relief devices prevent tank rupture. These protect equipment and personnel. Grounding points ensure safe operation.

Installation requires a solid foundation. Adequate clearance around the unit is essential. This allows for ventilation and maintenance access. Regular oil testing and visual checks are necessary. Proper maintenance ensures long service life. This transformer delivers reliable power for decades.

Applications of Oil Immersed Transformer 400KVA Three-phase Oil Immersed Transformer with 30kv Input Voltage

This 400KVA oil immersed transformer is built for tough jobs. It handles heavy electrical loads reliably. The “oil immersed” part means its core and windings sit inside a protective oil tank. This oil does two big things. It cools the transformer parts very effectively. It also acts as strong electrical insulation. This design makes the transformer last a long time even under constant use.

The “400KVA” rating tells you its power capacity. Think of KVA as kilovolt-amperes. This unit measures how much power the transformer can move. A 400KVA unit suits medium to large power needs. Its three-phase design is key. Three-phase power is the standard for industrial settings and big buildings. This transformer works perfectly with that system. It efficiently steps down high voltage electricity to safer, usable levels.

Its input voltage rating is 30 kilovolts (30kV). This means it connects directly to medium-voltage distribution lines. You find these lines feeding factories, large commercial complexes, or substations. The transformer takes this 30kV power and reduces it. Output voltage is usually much lower, like 400V or 480V. This lower voltage powers machinery, lighting, and other equipment safely.

Where do you use this transformer? Its strength is handling heavy, continuous loads. Factories rely on it for production machinery. Large commercial buildings need it for HVAC systems, lifts, and lighting. Water treatment plants use it for pumps and controls. Mining operations depend on its toughness. Any place needing lots of reliable three-phase power benefits. The oil cooling keeps it running smoothly during peak demand. Its robust construction withstands industrial environments. This transformer provides steady power day in, day out.

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 Oil Immersed Transformer 400KVA Three-phase Oil Immersed Transformer with 30kv Input Voltage, 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 Oil Immersed Transformer 400KVA Three-phase Oil Immersed Transformer with 30kv Input Voltage

What is an oil-immersed transformer?
An oil-immersed transformer uses oil for cooling and insulation. The core and windings sit inside a tank filled with insulating oil. The oil absorbs heat during operation. This keeps temperatures stable. It prevents overheating. This design suits high-power uses. It handles heavy loads well.

Where is a 400KVA oil-immersed transformer typically used?
These transformers power industrial sites. Examples include factories, mines, and large buildings. They step down 30kV voltage to usable levels. Common outputs are 400V or 480V. They support heavy machinery. They run pumps, compressors, and lighting systems reliably.

Why is 30kV input voltage important?
30kV input connects to medium-voltage grids. It reduces energy loss over long distances. This saves costs. The transformer steps it down for local equipment. It matches utility supply standards. This voltage is safe for distribution. It avoids extra conversion steps.

What safety features do these transformers have?
They have pressure relief valves. These release excess pressure from oil expansion. Temperature gauges monitor overheating. Some models include gas detectors. These sense internal faults early. The tank is rugged. It prevents leaks. External surfaces stay safe to touch.

How do I maintain a 400KVA oil-immersed transformer?
Check oil levels monthly. Test oil quality yearly for acidity and moisture. Clean bushings and radiators often. Ensure cooling fans work. Tighten electrical connections. Look for oil leaks. Keep vents unblocked. Schedule professional inspections every two years. This prevents failures.