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

These transformers step down high voltage electricity for local distribution. They handle incoming 11kV power. They supply safe, usable 400V or 415V power. They are essential for bringing power to homes, shops, and factories. Three-phase operation is standard. Power ratings range from 400kVA to 4000kVA. This covers many community and industrial needs.

The transformers mount directly on utility poles. This saves ground space. It simplifies installation along power lines. The core design uses high-grade silicon steel. Windings use electrolytic copper. This ensures efficient power transfer. Energy losses are minimized. Cooling relies on natural oil circulation (ONAN). Oil acts as insulation and coolant. The tank is robust welded steel. It withstands weather and protects internal parts.

These units meet international standards. IEC 60076 is the key benchmark. This guarantees safety and performance. Voltage regulation is precise. Off-circuit tap changers are standard. They allow minor voltage adjustments. This compensates for line variations. Typical taps are ±2.5% or ±5%. Temperature rise limits are strictly observed. This ensures long operational life.

Protection features are built-in. An oil level indicator is provided. A pressure relief device prevents tank rupture. Thermometers monitor oil temperature. A drain valve allows oil sampling. An earthing terminal ensures safety. These transformers are built for reliability. They operate continuously for years. They form the backbone of distribution networks. Proper sizing is vital. Always match the transformer to the actual load.

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

These transformers step down high voltage electricity. They convert 11kV power to safer, usable 400V or 415V. This is essential for many places needing three-phase power.

Factories rely heavily on these units. Large machines need significant power at lower voltages. A 400kVA or 500kVA transformer often handles specific production lines. It powers motors, presses, and assembly equipment reliably. The 4000kVA unit supports entire industrial plants. It feeds power to complex machinery networks.

Commercial buildings use these transformers too. Shopping centers, office blocks, and hospitals need stable power distribution. The 400kVA and 500kVA sizes suit medium-sized buildings. They supply lighting, elevators, and HVAC systems efficiently. Larger facilities like hospitals or data centers require the 4000kVA capacity. It ensures critical systems never lose power.

Rural and suburban areas depend on pole-mounted versions. The 400kVA and 500kVA transformers are common here. They mount directly on utility poles. This saves space and reduces installation costs. They deliver power safely to groups of homes and small businesses. These units are built tough. They withstand weather like wind, rain, and heat reliably.

Urban settings also use these transformers. Space is often limited in cities. The pole-mounted design is practical. It distributes power within neighborhoods effectively. The 4000kVA unit might be ground-mounted for substations. It feeds power to dense city blocks or large institutions.

These transformers are workhorses. They make high-voltage transmission practical for everyday use. Industrial operations, commercial activities, and residential power all depend on them. Choosing the right kVA rating is crucial. It matches the specific power demands of the location. The 400kVA, 500kVA, and 4000kVA models cover a wide range of needs. Their robust construction ensures long service life under demanding conditions.

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

Here are 5 common questions about our 400kVA, 500kVA, and 4000kVA Three-Phase Pole Mounted Distribution Transformers stepping down 11kV to 400V/415V:

What does this transformer actually do? It takes high voltage electricity from the main power lines. This voltage is too high for homes and businesses. The transformer reduces it to a safe, usable level. You get 400V or 415V output. This powers factories, shops, and whole neighborhoods efficiently.

Why 400V or 415V output? This voltage is the standard for industrial equipment and commercial buildings in many places. Machines, motors, and lighting systems need this specific voltage. The transformer reliably provides it. It ensures your equipment runs correctly.

How big are these transformers? They come in different power capacities: 400kVA, 500kVA, and 4000kVA. Choose the size based on the total electrical load you need to supply. A small factory might need 500kVA. A large industrial complex or dense housing area needs the bigger 4000kVA unit. We offer the right size for your job.

Why put it on a pole? Mounting the transformer high up on a strong pole saves valuable ground space. This is crucial in crowded cities or areas with limited land. It keeps the unit away from people and vehicles. Installation and maintenance access is easier for technicians. It’s a practical, space-saving solution.

Is it safe and reliable? Yes. These transformers are built tough for outdoor use. They handle weather, dust, and temperature changes. Protective features guard against electrical surges and overloads. This prevents problems and keeps the power flowing consistently. You get dependable operation year after year.