Transformer Oil Immersed Pad Mounted Transformer with Enclosure 300/500/600/800KVA

Overview of Transformer Oil Immersed Pad Mounted Transformer with Enclosure 300/500/600/800KVA

Transformer Oil Immersed Pad Mounted Transformer with Enclosure 300/500/600/800KVA is an enclosed, ground-level electrical distribution transformer commonly used in underground (UG) power systems. It steps down primary high-voltage electricity (e.g., 15kV or 25kV) to a lower secondary voltage (e.g., 120/240V or 480V) for safe distribution to residential neighborhoods, commercial buildings, and industrial parks. Its robust, lockable steel enclosure makes it safe for public areas.

Features of Transformer Oil Immersed Pad Mounted Transformer with Enclosure 300/500/600/800KVA

Ground-Level Enclosure: A locked, tamper-resistant, weatherproof steel cabinet that protects the internal components and ensures public safety.

Underground Cable Connections: Designed for easy connection to underground primary (high-voltage) and secondary (low-voltage) cables via compartments with built-in bushings.

Compartmentalization: Separate, isolated compartments for high-voltage and low-voltage components, enhancing safety during maintenance.

Ventilation: Designed with louvers or other ventilation systems to allow for proper heat dissipation from the transformer core and coils.

Lifting Lugs: Integrated lifting lugs for easy and safe installation and replacement using a crane or hoist.

Tamper-proof Hardware: Lockable doors with special bolts to prevent unauthorized access.

Fused Switches: Often includes fused disconnect switches for circuit protection and safe isolation.

Pad Foundation: Installed on a concrete pad (“pad-mounted”) to provide a stable, level base.

Specifications of Transformer Oil Immersed Pad Mounted Transformer with Enclosure 300/500/600/800KVA

This transformer handles power distribution directly at ground level. It suits commercial sites, industrial parks, and housing developments needing local voltage step-down. Available capacities are 300KVA, 500KVA, 600KVA, and 800KVA. The standard voltage rating is 11,000 Volts (or 11kV) on the high voltage side and 400 Volts (or 0.4kV) on the low voltage side. Custom voltages are possible.

Mineral oil fills the tank. This oil insulates and cools the core and windings effectively. Cooling happens naturally using air (ONAN). The robust steel enclosure protects the transformer outdoors. It withstands weather and prevents unauthorized access. The enclosure meets IP23 protection. This means it resists solid objects over 12mm and water spray up to 15 degrees from vertical. Locking doors secure the equipment.

The impedance voltage typically measures between 4% and 5%. This controls fault currents. Load losses and no-load losses meet international efficiency standards (like IEC 60076). Sound levels are low. They comply with environmental noise regulations. A pressure relief device quickly vents internal pressure if it builds up too high. This prevents tank rupture. An oil level gauge shows the oil quantity clearly. A temperature gauge monitors the oil temperature constantly.

The transformer includes lifting lugs for safe handling during installation and maintenance. Earthing terminals are provided for proper grounding. Cable entry points are flexible. They accommodate different connection methods. The design prioritizes safety and reliable operation for many years. Routine maintenance checks are straightforward. This ensures long service life.

Applications of Transformer Oil Immersed Pad Mounted Transformer with Enclosure 300/500/600/800KVA

Transformer oil immersed pad mounted transformers with enclosures handle 300 to 800 KVA. They step down high voltage electricity to safer, usable levels. These units are common where space is tight. You see them in shopping malls, hospitals, and schools. They power essential systems reliably. Factories and industrial parks use them too. They keep production lines running smoothly. Their compact pad-mounted design saves valuable room. The sturdy metal enclosure protects the internal parts. This shield guards against weather, animals, and accidental bumps. The oil inside serves a critical purpose. It cools the transformer windings effectively. This prevents overheating during operation. It also provides vital electrical insulation. The oil ensures safe performance under load. These transformers are built for outdoor duty. They withstand rain, snow, and heat. The enclosure adds extra security. It keeps people away from live components. Maintenance needs are low. The sealed tank minimizes oil degradation. Visual inspections check oil levels and overall condition. Their reliability makes them popular choices. They deliver power quietly and efficiently. Urban areas benefit from their small footprint. They fit easily into streetscapes or building plots. Remote locations appreciate their ruggedness. They operate without constant supervision. The oil insulation allows efficient heat dissipation. This supports consistent power delivery. Voltage regulation remains stable across the range. These units form a key link in distribution networks. They bring power safely to the point of use.

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 Transformer Oil Immersed Pad Mounted Transformer with Enclosure 300/500/600/800KVA, 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 Transformer Oil Immersed Pad Mounted Transformer with Enclosure 300/500/600/800KVA

What is transformer oil for?
Transformer oil cools the transformer. It insulates the internal parts. Good oil prevents overheating. It stops electrical sparks. The oil must stay clean. Regular testing is important. It keeps the transformer running safely.

How do I choose the right size (300, 500, 600, or 800kVA)?
Check your building’s power needs. Small shops often need 300kVA. Medium offices use 500kVA. Larger factories need 600kVA. Big complexes need 800kVA. Ask an electrician. They know your exact load. Picking the wrong size wastes money. It can cause problems.

Is this transformer safe near people?
Yes, the steel enclosure protects people. It locks completely. The box stops accidental contact. Touching live parts is impossible. The oil inside is contained. The unit meets safety standards. It is built for public areas.

How much maintenance is needed?
Check the oil level every year. Test the oil quality sometimes. Look for leaks monthly. Keep vents clear of dirt. Professional checks every few years are wise. The unit is generally low maintenance. Regular care prevents big repairs.

Where do I install this transformer?
Place it on a solid concrete pad. The ground must be flat. Ensure good air flow around it. Keep it away from walls or fences. The area must drain water well. Only qualified electricians should install it. They connect it to the power grid.