1250kva 315kva 13.8kv Three Phase Power transformers Compact Substation American Box Transformer Pad Mounted Transformer

Overview of 1250kva 315kva 13.8kv Three Phase Power transformers Compact Substation American Box Transformer Pad Mounted Transformer

1250kva 315kva 13.8kv Three Phase Power transformers Compact Substation American Box Transformer Pad Mounted 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 1250kva 315kva 13.8kv Three Phase Power transformers Compact Substation American Box Transformer Pad Mounted 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 1250kva 315kva 13.8kv Three Phase Power transformers Compact Substation American Box Transformer Pad Mounted Transformer

These transformers handle high voltage power distribution. The 1250kVA and 315kVA models are common. They operate at 13.8kV primary voltage. This voltage level suits many utility and industrial networks. The transformers step down voltage for local use. They are built for three-phase electrical systems. Three-phase power is standard for heavy loads.

The transformers come in different enclosure types. Compact substations integrate the transformer with switchgear. Everything fits in one tight unit. This saves space. American box transformers offer a sturdy, enclosed design. They protect the internal components well. Pad-mounted transformers sit directly on a concrete pad outdoors. Their design allows safe access for maintenance. All types are built tough. They withstand harsh weather conditions.

Key specifications matter for performance. The kVA rating shows power capacity. A 1250kVA unit handles more load than a 315kVA unit. The primary voltage is always 13.8kV. Secondary voltage depends on customer needs. Common secondary voltages include 480V or 208Y/120V. Impedance percentage affects voltage regulation. Standard impedance values are available. Higher impedance limits fault current. Lower impedance improves voltage stability.

Insulation is critical. Liquid-filled designs use oil or ester fluid. This provides excellent cooling and insulation. Dry-type transformers use solid insulation. They are safer for indoor use. Cooling classes like ONAN indicate cooling methods. ONAN means oil-natural air-natural cooling. Temperature rise ratings are important. They show how much the unit heats up under load. Lower temperature rise often means longer life.

These transformers connect to the power grid. They feed factories, commercial buildings, neighborhoods. Their robust construction ensures reliable service. Safety features are built-in. They meet industry standards like IEEE and ANSI. Proper installation is essential. Follow the manufacturer’s guidelines exactly. Regular maintenance keeps them running efficiently. Check oil levels and insulation resistance periodically.

Applications of 1250kva 315kva 13.8kv Three Phase Power transformers Compact Substation American Box Transformer Pad Mounted Transformer

These power transformers handle big electrical jobs. They change high voltage to safer usable levels. The 1250kVA and 315kVA sizes at 13.8kV fit many situations. Factories need them. Large plants rely on them. They power heavy machinery without problems. These units are tough. They keep production lines moving smoothly.

Compact substations use these transformers. They are space savers. You see them in shopping centers. They work well for office buildings. Apartment complexes use them too. They deliver power efficiently in tight spots. The American box transformer design is common. It meets strict safety codes. Installation is straightforward. Maintenance is simple.

Pad-mounted transformers are another key type. They sit on concrete pads outside. Utilities install them in neighborhoods. They supply power to homes reliably. These transformers are safe around people. They are locked securely. Vandalism isn’t a worry. They handle weather extremes fine. Rain or heat doesn’t stop them.

Renewable energy projects need these transformers. Solar farms connect through them. Wind farms use their capacity. They feed clean power into the grid. Large construction sites benefit too. Temporary power demands are high. These transformers meet that need. They support essential services. Hospitals depend on constant electricity. Data centers require stable power. These units deliver that reliability. They are built for long service life. Performance is consistent year after year.

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 1250kva 315kva 13.8kv Three Phase Power transformers Compact Substation American Box Transformer Pad Mounted 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 1250kva 315kva 13.8kv Three Phase Power transformers Compact Substation American Box Transformer Pad Mounted Transformer

What are these transformers used for? These units step down high voltage electricity to usable levels. They power industrial sites, commercial buildings, and residential areas. The compact substation saves space. The pad mounted type sits securely outdoors. All handle three phase power efficiently.

How do I choose the correct size? Match the transformer to your electrical load. The 315kVA suits smaller operations. The 1250kVA fits larger demands. Check your total power requirements first. Then select a model with enough capacity. Oversizing slightly prevents overload issues.

Are these transformers safe? Yes, safety features are built in. They include pressure relief valves and fault protection. The American box design meets strict standards. Pad mounted transformers have secure enclosures. Proper installation reduces risks further.

What is the installation process? Prepare a concrete base for stability. Place the transformer on the pad. Connect wiring to the terminals carefully. The compact substation arrives pre-assembled. This simplifies setup. Always hire certified electricians for this work.

What maintenance is required? Inspect units every few months. Look for oil leaks or physical damage. Clean debris around the enclosure. Monitor oil levels if applicable. Schedule professional checks annually. This prevents breakdowns and extends lifespan.