400kva 500 Kva 4000kva Three Phase Step Down Transformer 11kv To 400v 415v Pole Mounted Distribution Transformer

Overview of 400kva 500 Kva 4000kva Three Phase Step Down Transformer 11kv To 400v 415v Pole Mounted Distribution Transformer

400kva 500 Kva 4000kva Three Phase Step Down Transformer 11kv To 400v 415v Pole Mounted Distribution Transformer 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 400kva 500 Kva 4000kva Three Phase Step Down Transformer 11kv To 400v 415v Pole Mounted Distribution Transformer

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 400kva 500 Kva 4000kva Three Phase Step Down Transformer 11kv To 400v 415v Pole Mounted Distribution Transformer

This transformer steps down high voltage electricity for local distribution. It handles incoming power at 11kV. It outputs lower voltage power at 400V or 415V. This voltage is standard for many businesses and industries. The transformer comes in different power capacities. Options include 400kVA, 500kVA, and 4000kVA models. Choose the size matching your specific power load needs.

It’s a three-phase transformer. Three-phase power is common for heavy equipment. This design efficiently handles large electrical loads. The transformer mounts directly on utility poles. Pole mounting saves valuable ground space. This placement is ideal for overhead power lines in neighborhoods or industrial areas.

The core uses high-grade electrical steel. This material minimizes energy losses. Copper windings conduct the electricity efficiently. Good insulation separates the windings. This insulation withstands the high voltage difference. The transformer uses oil for cooling. Oil circulates naturally or with pumps. This keeps operating temperatures safe.

Rated voltage input is 11,000 volts. Output voltage is either 400 volts or 415 volts. Frequency is typically 50Hz or 60Hz. Confirm the frequency for your region. The transformer has specific impedance values. Impedance affects short-circuit current levels. Cooling methods include ONAN (oil natural, air natural) or ONAF (oil natural, air forced). Larger units often need forced air cooling.

These transformers deliver reliable power conversion. They reduce high transmission voltage to usable levels. Their pole-mounted design offers practical installation. They provide steady power for shops, factories, and similar facilities. Proper sizing ensures efficient operation under load.

Applications of 400kva 500 Kva 4000kva Three Phase Step Down Transformer 11kv To 400v 415v Pole Mounted Distribution Transformer

These transformers change high voltage electricity to safer, lower voltage levels. They handle 11,000 volts input. They output 400 or 415 volts. This is standard for many businesses and factories. Three-phase power is common for heavy equipment. Transformers from 400kVA to 4000kVA cover different power needs.

Pole mounting saves valuable ground space. This is ideal for utility companies. It works well in towns and cities. It also suits industrial areas. The transformer sits high up on sturdy poles. This keeps it away from people and traffic. It makes installation simpler in crowded places.

These units supply power reliably. They feed entire neighborhoods. They power shopping centers. They run small factories. They support large workshops. The 400kVA size is good for medium loads. The 500kVA size offers a bit more capacity. The 4000kVA size handles very big demands. Think large manufacturing plants or dense housing.

The step-down action is crucial. It makes the electricity usable. Machinery needs 400/415 volts. Lighting systems need it. Office equipment needs it. The transformer safely delivers this. It connects directly to the local power grid. The 11kV line is common overhead. The transformer taps into this efficiently.

Durability matters outdoors. Pole-mounted units are built tough. They withstand weather. They handle temperature changes. They provide stable voltage conversion. This protects connected equipment. It ensures consistent operation. Reduced losses mean better efficiency. This saves energy costs over time. Proper installation and maintenance are key. They guarantee long service life.

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 400kva 500 Kva 4000kva Three Phase Step Down Transformer 11kv To 400v 415v Pole Mounted Distribution 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 400kva 500 Kva 4000kva Three Phase Step Down Transformer 11kv To 400v 415v Pole Mounted Distribution Transformer

What are these transformers used for?
These pole-mounted transformers reduce high voltage electricity. They step down power from 11kV lines to safer 400V or 415V levels. This lower voltage powers factories, large buildings, and commercial areas. The 400kVA, 500kVA, and 4000kVA sizes handle different load demands. They are common on utility poles near industrial zones.

Where do they install?
Installation happens on sturdy utility poles. The transformer mounts securely on the pole structure. This placement keeps it off the ground. It saves space in crowded areas. The pole must support the transformer’s weight properly. Trained utility crews handle the installation.

What voltage do they output?
The output voltage is 400 volts or 415 volts. This is standard for three-phase power systems. The input voltage is always 11kV. The transformer changes this high voltage to the lower usable level. It provides power ready for industrial machinery and large facilities.

Are they safe?
Yes, these transformers meet strict safety standards. They use high-quality insulation materials. The robust tank design protects internal parts. It prevents oil leaks. The units undergo rigorous testing before leaving the factory. They are built for reliable outdoor operation.

What maintenance is needed?
Regular checks are essential. Technicians monitor the insulating oil level and quality. They inspect connections for tightness and corrosion. External surfaces need cleaning sometimes. Bushings and cooling fins require visual checks. Professional maintenance ensures long transformer life.