Pole Mounted Transformer 25 Kva Transformer With Oil Immersed Transformer

Overview of Pole Mounted Transformer 25 Kva Transformer With 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 Pole Mounted Transformer 25 Kva Transformer With 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 Pole Mounted Transformer 25 Kva Transformer With Oil Immersed Transformer

This 25 kVA pole-mounted transformer steps down high voltage from power lines. It supplies safe, usable power to homes and businesses. The unit is mounted directly on utility poles. This saves ground space.

The transformer uses oil for cooling and insulation. Mineral oil fills the tank. The oil surrounds the core and windings. It absorbs heat during operation. The oil also provides vital electrical insulation. This prevents short circuits.

Inside, a laminated silicon steel core forms the magnetic circuit. Copper windings wrap around this core. The primary winding connects to the high voltage line. The secondary winding delivers the lower voltage. High-grade insulation paper separates the windings. This insulation handles high electrical stress. The entire core and coil assembly is robust. It withstands mechanical forces.

Standard ratings include 25 kVA capacity. Primary voltages are often 7200V, 12470V, or 14400V. Common secondary voltages are 120/240V or 240/480V. The transformer handles typical distribution loads. Frequency is 60 Hz. Basic Impulse Level (BIL) protection is standard. This guards against lightning strikes.

A welded steel tank encloses the core and coils. The tank is weatherproof. It protects the internal parts. Radiator fins or tubes are attached to the tank. These increase the cooling surface area. Heat from the oil transfers to the air. A conservator tank is sometimes present. It allows for oil expansion and contraction.

An oil level gauge is visible. It shows the oil quantity inside. A pressure relief device protects the tank. It vents excess pressure safely. This prevents tank rupture. Bushings provide external electrical connections. These bushings are porcelain or polymer. They insulate the high voltage connections.

Installation requires lifting the unit onto the pole. Crews secure it with standard pole hardware. Connections follow utility practices. Regular inspections check the oil level. Oil samples test dielectric strength. This maintenance ensures long, reliable service life. The design prioritizes safety and durability.

Applications of Pole Mounted Transformer 25 Kva Transformer With Oil Immersed Transformer

Pole mounted 25 KVA oil immersed transformers are vital equipment. They step down high voltage electricity from power lines. This makes the voltage safe and usable for homes and businesses nearby. Their design makes them very practical for many situations.

These transformers are perfect for bringing power to rural areas. They mount directly onto existing utility poles. This saves space and avoids the need for costly ground substations. They deliver reliable power to farms, villages, and scattered houses far from cities. They handle the demands of multiple households effectively.

In towns and cities, these transformers are also common. They serve smaller neighborhoods or groups of buildings. Placing them on poles keeps them safely out of reach. This protects people and property. They supply power to streets, small shops, and apartment blocks. They are a key part of the local power grid.

Industrial sites use them too. They provide dedicated power for smaller factories, workshops, or construction projects. They are good for temporary power needs. Their pole mounting keeps them secure and accessible for maintenance. They offer a dependable power source for essential equipment.

The oil inside these transformers is crucial. It cools the core and windings during operation. This prevents overheating and extends the transformer’s working life. The oil also provides excellent electrical insulation. This enhances safety and performance. The sealed tank protects the oil from the weather.

These 25 KVA units offer significant advantages. They are highly reliable for continuous operation. Their pole-mounted position makes installation faster and cheaper than ground units. They require less land. Maintenance is simpler because technicians can easily reach them. The oil immersion ensures good cooling and insulation. This combination delivers dependable power safely and cost-effectively. They are a versatile solution across different settings.

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 Pole Mounted Transformer 25 Kva Transformer With 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 Pole Mounted Transformer 25 Kva Transformer With Oil Immersed Transformer

What is this pole-mounted transformer?
This is a 25 KVA transformer. It steps down high voltage electricity from power lines. It makes the voltage safe for homes and businesses nearby. It sits on a utility pole. Oil fills the transformer tank. This oil cools the internal parts. The oil also insulates the electrical components.

Why mount it on a pole?
Pole mounting saves space. It keeps the transformer away from people and animals. It protects the unit from ground flooding. It connects directly to overhead power lines. This setup is common in towns and rural areas. It delivers power efficiently over local distances.

Why use oil inside?
The oil is essential. It absorbs heat generated during operation. This prevents overheating. The oil also acts as a strong electrical insulator. It stops short circuits inside the tank. Oil is reliable for outdoor use. It handles different weather conditions well.

Does it need a lot of maintenance?
Regular checks are important. Technicians monitor the oil level. They test the oil quality. Good oil is clean and dry. Bad oil can cause problems. They inspect bushings and connections for damage. Leaks need fixing fast. Visual inspections happen often. Detailed testing happens less frequently.

Is it safe?
These transformers are designed for safety. The strong tank contains the oil. Protective devices are usually inside. They disconnect power during major faults. The pole mount keeps it high up. Only trained utility workers should touch it. Never go near a damaged transformer. Report any leaks or issues immediately.